Digital Indicating pH Meter

AER-102-PH
Instruction ManualPreface
Thank you for purchasing our AER-102-PH, Digital Indicating pH Meter.
This manual contains instructions for the mounting, functions, operations and notes when
operating the AER-102-PH. To ensure safe and correct use, thoroughly read and understandthis manual before using this instrument.
To prevent accidents arising from the misuse of this instrument, please ensure the operator
receives this manual.

Characters Used in This Manual
Indication
Number,

/

-1

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Indication
Alphabet
Indication
Alphabet

Caution• This instrument should be used in accordance with the specifications described in the manual.
If it is not used according to the specifications, it may malfunction or cause a fire.
• Be sure to follow all of the warnings, cautions and notices. If they are not observed, serious
injury or malfunction may occur.
• The contents of this instruction manual are subject to change without notice.
• Care has been taken to ensure that the contents of this instruction manual are correct, but if
there are any doubts, mistakes or questions, please inform our sales department.
• This instrument is designed to be installed through a control panel. If it is not, measures
must be taken to ensure that the operator cannot touch power terminals or other highvoltage sections.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos Co., Ltd. is not liable for any damage or secondary damage(s) incurred asa result of using this product, including any indirect damage.

2

Safety Precautions (Be sure to read these precautions before using our products.)
The safety precautions are classified into 2 categories: “Warning” and “Caution”.
Depending on the circumstances, procedures indicated by
Caution may result inserious consequences, so be sure to follow the directions for usage.
which may lead to dangerous conditions and cause
Warning Procedures
death or serious injury, if not carried out properly.
Procedures which may lead to dangerous conditions and cause
Caution superficial
to medium injury or physical damage or may degrade
or damage the product, if not carried out properly.

Warning• To prevent an electrical shock or fire, only Shinko or other qualified service personnel
may handle the inner assembly.
• To prevent an electrical shock, fire or damage to the instrument, parts replacement
may only be undertaken by Shinko or other qualified service personnel.

SAFETY PRECAUTIONS• To ensure safe and correct use, thoroughly read and understand this manual before
using this instrument.
• This instrument is intended to be used for measuring equipment.
Verify correct usage after purpose-of-use consultation with our agency or main office.
(Never use this instrument for medical purposes with which human lives are involved.)• Proper periodic maintenance is also required.
• This instrument must be used under the conditions and environment described in thismanual. Shinko Technos Co., Ltd. does not accept liability for any injury, loss of life ordamage occurring due to the instrument being used under conditions not otherwise
stated in this manual.

Caution with Respect to Export Trade Control Ordinance
To avoid this instrument from being used as a component in, or as being utilized in the
manufacture of weapons of mass destruction (i.e. military applications, militaryequipment, etc.), please investigate the end users and the final use of this instrument.
In the case of resale, ensure that this instrument is not illegally exported.

3

1. Installation Precautions

CautionThis instrument is intended to be used under the following environmental conditions(IEC61010-1): Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )that does not change rapidly, and no icing• An ambient non-condensing humidity of 35 to 85 %RH• No large capacity electromagnetic switches or cables through which large current isflowing.
• No water, oil, chemicals or the vapors of these substances can come into directcontact with the unit.
• If the AER-102-PH is mounted through the face of a control panel, the ambient
temperature of the unit – not the ambient temperature of the control panel – must be
kept under 50 . Otherwise the life of electronic parts (especially electrolytic
capacitors) of the unit will be shortened.
Note: Do not install this instrument on or near flammable material even though
the case of this instrument is made of flame-resistant resin.

2. Wiring Precautions

Caution• Do not leave wire remnants in the instrument, as they could cause a fire or amalfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits whenwiring the AER-102-PH.
• The terminal block of this instrument is designed to be wired from the left side. The
lead wire must be inserted from the left side of the terminal, and fastened with theterminal screw.
• Tighten the terminal screw using the specified torque. If excessive force is applied tothe screw when tightening, the terminal screw or the case may be damaged.
• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current(DC).
• Be sure to connect the ground terminal to earth for safety (D-class grounding).
Keep the grounding of this unit separate from other electrical devices, such as motors.
• Do not apply a commercial power source to the sensor which is connected to the input
terminal nor allow the power source to come into contact with the sensor.
• Use the pH Combined Electrode Sensor in accordance with the sensor input
specifications of the AER-102-PH.
• Keep the input wires and power lines separate.
4Note about the pH Combined Electrode Sensor Cable
The pH Combined Electrode Sensor cable is a highly-insulated (electrical) cable.
Please handle it with utmost care as follows.
• Do not allow terminals and socket of the pH Combined Electrode Sensor cable to comein contact with moisture or oil of any kind. Likewise, ensure fingers are clean, otherwise
the insulation will deteriorate, resulting in unstable indication.
Be sure to keep the cable dry and clean at all times.
If the cable is stained, clean it with alcohol, and dry it completely.
• For calibration or electrode checking/replacement, the pH Combined Electrode Sensor
cable should be wired with sufficient length.
• Keep the pH Combined Electrode Sensor cable and junction cable away from electricaldevices, such as motors or their power lines from which inductive interference
emanates.
Connection
The pH Combined Electrode Sensor cable has the following terminals:
Code
G
R
T, T
A, B
A, B, BE

Terminal
Glass electrode terminal
Reference electrode terminal
Temperature compensation electrode terminals (Cu500)
Temperature compensation electrode terminals [Pt100 (2-wire), Pt1000]
Temperature compensation electrode terminals [Pt100 (3-wire)]
Shield wire terminal

For the pH Combined Electrode Sensor with No Temperature Compensation, T, T or
A, B, B cables are not available.
E cables are available depending on the sensor type.
During operation, the pH/Temperature Display may become abnormal or unstable due
to inductive interference or noise. In this case, try [Grounding of shield wire terminal (E)(P.70)].

3. Operation and Maintenance Precautions

Caution• Do not touch live terminals. This may cause an electrical shock or problems inoperation.
• Turn the power supply to the instrument OFF when retightening the terminal orcleaning.
Working on or touching the terminal with the power switched ON may result in severe
injury or death due to electrical shock.
• Use a soft, dry cloth when cleaning the instrument.
(Alcohol based substances may tarnish or deface the unit.)• As the display section is vulnerable, be careful not to put pressure on, scratch or strike
it with a hard object.
5

Contents
Page
1. Model ................................................................................................................................. 8
1.1 Model ..........................................................................................................................8
1.2 How to Read the Model Label .....................................................................................8
2. Names and Functions of Sections ...................................................................................... 9
3. Mounting to the Control Panel .......................................................................................... 10
3.1 Site Selection ............................................................................................................10
3.2 External Dimensions (Scale: mm) ............................................................................10
3.3 Panel Cutout (Scale: mm) ......................................................................................... 11
3.4 Mounting and Removal .............................................................................................12
4. Wiring ............................................................................................................................... 13
4.1 Lead Wire Solderless Terminal ..................................................................................14
4.2 Terminal Arrangement ...............................................................................................15
5. Outline of Key Operation and Setting Groups .................................................................... 16
5.1 Outline of Key Operation ...........................................................................................16
5.2 Setting Groups ..........................................................................................................16
6. Key Operation Flowchart .................................................................................................. 18
7. Setup ................................................................................................................................ 21
7.1 Turn the Power Supply to the AER-102-PH ON. .......................................................21
7.2 pH Input Group ..........................................................................................................22
7.3 Temperature Input Group ..........................................................................................23
7.4 EVT1 Action Group....................................................................................................25
7.5 EVT2 Action Group....................................................................................................33
7.6 EVT3 Action Group....................................................................................................33
7.7 EVT4 Action Group....................................................................................................33
7.8 Basic Function Group ................................................................................................34
7.9 Zero/Slope Indication Group .....................................................................................41
8. Calibration ........................................................................................................................ 42
8.1 pH Calibration Mode..................................................................................................428.1.1 Automatic Calibration ....................................................................................... 42
8.1.2 Manual Calibration ........................................................................................... 43
8.1.3 Error Code during pH Calibration ..................................................................... 45
8.2 Temperature Calibration Mode ..................................................................................46
8.3 Transmission Output 1 Adjustment Mode ..................................................................47
8.4 Transmission Output 2 Adjustment Mode ..................................................................48
9. Measurement ................................................................................................................... 49
9.1 Starting Measurement ...............................................................................................49
9.2 EVT1 to EVT4 Outputs ..............................................................................................50
9.3 Error Output ..............................................................................................................52
9.4 Fail Output .................................................................................................................52
9.5 Cleansing Output.......................................................................................................52
9.6 Manual Cleansing Mode ............................................................................................53
9.7 pH Input Error Alarm..................................................................................................54
9.8 Cycle Automatic Variable Function ............................................................................55
6

9.9 Error Code during Measurement ...............................................................................56
9.10 Setting EVT1 to EVT4 Values..................................................................................56
9.11 Transmission Output 1 and 2 ..................................................................................57
9.12 pH Fluctuation Alarm Output ...................................................................................58
10. Specifications ................................................................................................................. 59
10.1 Standard Specifications ...........................................................................................59
10.2 Optional Specifications ............................................................................................67
11. Troubleshooting .............................................................................................................. 68
11.1 Indication .................................................................................................................68
11.2 Key Operation..........................................................................................................70
12. Character Tables ............................................................................................................ 71
12.1 Setting Group List....................................................................................................71
12.2 Temperature Calibration Mode ................................................................................71
12.3 pH Calibration Mode (for Manual calibration) ..........................................................71
12.4 Transmission Output 1 Adjustment Mode ................................................................71
12.5 Transmission Output 2 Adjustment Mode ................................................................71
12.6 Simple Setting Mode ...............................................................................................72
12.7 pH Input Group ........................................................................................................72
12.8 Temperature Input Group ........................................................................................73
12.9 EVT1 Action Group..................................................................................................73
12.10 EVT2 Action Group................................................................................................76
12.11 EVT3 Action Group ................................................................................................78
12.12 EVT4 Action Group................................................................................................80
12.13 Basic Function Group ............................................................................................83
12.14 Zero/Slope Indication Group .................................................................................86
12.15 Error Code List ......................................................................................................877

1. Model
1.1 Model
AER-10
Input
Points
Input

2-

PH

2

,
2 points

PH

pH Combined
ElectrodeSensorPt spec (*1)

Pt1000
Pt100
Cu500/25

Cu spec (*1)
100 to 240 V AC (standard)
Power Supply
Voltage1
24 V AC/DC(*2)
C5
Serial communication RS-485
OptionEVT3
EVT3, EVT4 outputs (Contact output 3, 4)
TA2Transmission output 2 (*3)(*1) This input temperature specification was specified at the time of ordering.
(*2) Power supply voltage 100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter “1” in Power supply voltage, after ‘PH’.
(*3) If Transmission output 2 (TA2 option) is ordered, the EVT1 cannot be added.
1.2 How to Read the Model Label
The model label is attached to the left side of the case.
Model, Option
pH input
Temperature input
Power supply voltage, Power consumption
Serial number(Fig. 1.2-1)

8

2. Names and Functions of Sections
pH Display
Temperature Display
Output Display

Action Indicators

UP keyMODE key

DOWN key

SET key(Fig. 2-1)
Displays
pH Display

Temperature
Display
OutputDisplay

pH or characters in setting mode are indicated in red/green/orange.
Indications differ depending on the selections in [Backlight selection(p.37)] and [pH color (p.38)].
Temperature or values in setting mode are indicated in green.
Indications differ depending on the selections in [Backlight selection(p.37)].
Backlight green
The bar graph lights up corresponding to the Transmission output.
Indications differ depending on the selections in [Bar graph indication(p.39)].

Action Indicators: Backlight orange
Lights up when EVT1 output (Contact output 1) is ON.
EVT1
Lights up when EVT2 output (Contact output 2) is ON.
EVT2
Lights up when EVT3 output (Contact output 3) (EVT3 option) is ON.
EVT3
Lights up when EVT4 output (Contact output 4) (EVT3 option) is ON.
EVT4
Lights up during Serial communication (C5 option) TX output
T/R(transmitting).
Lights up when Lock 1, Lock 2 or Lock 3 is selected.
LOCK
Keys
UP keyDOWN key
MODE key
SET key

Increases the numeric value.
Decreases the numeric value.
Selects a group.
Switches the setting modes, and registers the set value.
93. Mounting to the Control Panel
3.1 Site Selection

CautionUse within the following temperature and humidity ranges:
Temperature: 0 to 50 (32 to 122 ) (No icing)
Humidity: 35 to 85 %RH (Non-condensing)
If AER-102-PH is mounted through the face of a control panel, the ambient temperatureof the unit – not the ambient temperature of the control panel – must be kept under
50 , otherwise the life of electronic parts (especially electrolytic capacitors) of the unit
will be shortened.
This instrument is intended to be used under the following environmental
conditions (IEC61010-1): Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• No mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )that does not change rapidly• An ambient non-condensing humidity of 35 to 85 %RH• No large capacity electromagnetic switches or cables through which large current
is flowing• No water, oil, chemicals or the vapors of these substances can come into directcontact with the unit
3.2 External Dimensions (Scale: mm)Screw type mounting bracket

96
48

Terminal cover (sold separately)

91
106.2

Gasket11.5

98.5
104.5 (when terminal cover is used)(Fig. 3.2-1)
10

3.3 Panel Cutout (Scale: mm)

Caution130

92＋0.80

If horizontal close mounting is used for the unit, IP66 specification (Drip-proof/
Dust-proof) may be compromised, and all warranties will be invalidated.

92＋0.80

n×48-3 ＋0.5
0Horizontal close mounting
n: Number of mounted units
45＋0.50(Fig. 3.3-1)

11

3.4 Mounting and Removal

CautionAs the case is made of resin, do not use excessive force while screwing in
the mounting bracket, or the case or mounting brackets could be damaged.
The tightening torque should be 0.12 N•m.
How to mount the unit
Mount the unit vertically to the flat, rigid panel to ensure it adheres to the Drip-proof/
Dust-proof specification (IP66).
Mountable panel thickness: 1 to 8 mm(1) Insert the unit from the front side of the panel.
(2) Attach the mounting brackets by the holes at the top and bottom of the case, andsecure the unit in place with the screws.
How to remove the unit
(1) Turn the power to the unit OFF, and disconnect all wires before removing the unit.
(2) Loosen the screws of the mounting brackets, and remove the mounting brackets.
(3) Pull the unit out from the front of the panel.

UP(Fig. 3.4-1)

12

4. Wiring
Warning
Turn the power supply to the instrument off before wiring or checking.
Working on or touching the terminal with the power switched on may result insevere injury or death due to electrical shock.

Caution• Do not leave wire remnants in the instrument, as they could cause a fire or amalfunction.
• Use a solderless terminal with an insulation sleeve in which the M3 screw fits whenwiring the AER-102-PH.
• The terminal block of this instrument is designed to be wired from the left side. The
lead wire must be inserted from the left side of the terminal, and fastened with theterminal screw.
• Tighten the terminal screw using the specified torque. If excessive force is applied tothe screw when tightening, the terminal screw may be damaged.
• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the instrument.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)
• For a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).
• Be sure to connect the ground terminal to earth for safety (D-class grounding).
Keep the grounding of this unit separate from other electrical devices, such as motors.
• Do not apply a commercial power source to the sensor which is connected to the input
terminal nor allow the power source to come into contact with the sensor.
• Use the pH Combined Electrode Sensor in accordance with the sensor input
specifications of this unit.
• Keep the input wires and power line separate.
Note about the pH Combined Electrode Sensor Cable
The pH Combined Electrode Sensor cable is a highly-insulated (electrical) cable.
Please handle it with utmost care as follows.
• Do not allow terminals and socket of the pH Combined Electrode Sensor cable to comein contact with moisture or oil of any kind. Likewise, ensure fingers are clean, otherwise
the insulation will deteriorate, resulting in unstable indication.
Be sure to keep the cable dry and clean at all times.
If the cable is stained, clean it with alcohol, and dry it completely.
• For calibration or electrode checking/replacement, the pH Combined Electrode Sensor
cable should be wired with sufficient length.
• Keep the pH Combined Electrode Sensor cable and junction cable away from electricaldevices, such as motors or their power lines from which inductive interference
emanates.
13

Connection
The pH Combined Electrode Sensor cable has the following terminals:
Code
TerminalG
Glass electrode terminal
R
Reference electrode terminal
T, T
Temperature compensation electrode terminals (Cu500)
A, B
Temperature compensation electrode terminals [Pt100 (2-wire), Pt1000]
A, B, B
Temperature compensation electrode terminals [Pt100 (3-wire)]E
Shield wire terminal
For the pH Combined Electrode Sensor with No Temperature Compensation, T, T or
A, B, B cables are not available.
E cables are available depending on the sensor type.
During operation, the pH/Temperature Display may become abnormal or unstable due
to inductive interference or noise. In this case, try [Grounding of shield wire terminal (E)(P.70)].
4.1 Lead Wire Solderless Terminal
Use a solderless terminal with an insulation sleeve in which an M3 screw fits as follows.
The tightening torque should be 0.63 N•m.

Y-type

5.8 mm max.

Ring-type

Manufacturer

Model

Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.
Nichifu Terminal Industries CO.,LTD.
Japan Solderless Terminal MFG CO.,LTD.

TMEV1.25Y-3
VD1.25-B3A
TMEV1.25-3
V1.25-3

3.2 mm

3.2 mm

5.8 mm max.

Solderless
Terminal(Fig. 4.1-1)

14

Tightening
Torque0.63 N•m

4.2 Terminal Arrangement(Fig. 4.2-1)
GND
POWER SUPPLY
EVT1
EVT2
TRANSMITOUTPUT1
TRANSMITOUTPUT2
G, R
E
T, T
A, B
A, B, B
RS-485EVT3EVT4Ground100 to 240 V AC or 24 V AC/DC (when 1 is added after the model)
For 24 V DC, ensure polarity is correct.
EVT1 output (Contact output 1)
EVT2 output (Contact output 2)
Transmission output 1
Transmission output 2 (TA2 option)
Electrode sensor
Shield wire
Temperature compensation sensor (Cu500)
Temperature compensation sensor [Pt100 (2-wire), Pt1000]
Temperature compensation sensor [Pt100 (3-wire)]
Serial communication (C5 option)
2 connectors are wired internally.
Use the included wire harnesses C5J and C0J.
EVT3 output (Contact output 3) (EVT3 option)
Use the included wire harness HBJ.
EVT4 output (Contact output 4) (EVT3 option)
Use the included wire harness HBJ.

15

5. Outline of Key Operation and Setting Groups
5.1 Outline of Key Operation
There are 2 setting modes: Simple Setting mode, and Group Selection mode in which
setting items are divided into groups.
key in pH/Temperature Display Mode, orTo enter Simple Setting mode, press the
Cleansing Output Mode.
To enter Group Selection mode, press the
key in pH/Temperature Display Mode, orCleansing Output Mode.
Select a group with thekey, and press the
key. The unit enters each setting item.
To set each item, use theorkey, and register the set value with thekey.
5.2 Setting Groups
Setting groups are described in the next page.
[About Each Mode and Setting Items](*1) In pH/Temperature Display mode, or Cleansing Output mode, measurement starts,
indicating the item selected in [Backlight selection (p.37)] in the Basic Functiongroup.
If power is turned ON again, the last mode at power OFF (pH/Temperature Display
mode, or Cleansing Output mode) will resume.
(*2) If(Cleansing output) is selected in [EVT1 type to EVT4 type] in the EVT1
to EVT4 Action groups, the unit can enter Manual cleansing mode.
After cleansing action is complete, the unit automatically reverts to Cleansing Output
mode.
(*3) If(No temperature compensation) is selected in [Electrode RTD (p.24)] in theTemperature Input group, the unit will not move to Temperature Calibration mode.
(*4) Available when Transmission output 2 (TA2 option) is ordered.
(*5) Not available if Transmission output 2 (TA2 option) is ordered.
(*6) Available when the EVT3, EVT4 outputs (EVT3 option) is ordered.
[Key Operation]•+(3 sec): Press and hold the
key andkey (in that order) together for
3 seconds. The unit will proceed to Manual Cleansing mode.
+(3 sec): Press and hold the
key andkey (in that order) together•
for 3 seconds. The unit will proceed to Temperature Calibration mode.
•+(3 sec): Press and hold the
key andkey (in that order)
together for 3 seconds. The unit will proceed to pH Calibration mode.
•+(3 sec): Press theandkey (in that order) together for 3 seconds.
The unit will proceed to Transmission output 1 Zero adjustment mode.
•+(3 sec): Press theandkey (in that order) together for 3 seconds.
The unit will proceed to Transmission output 2 Zero adjustment mode.
•or: Press theorkey. The unit will proceed to the next setting
item, illustrated by an arrow.
•or: Press theor

key until the desired setting mode appears.

• To revert to pH/Temperature Display Mode, or Cleansing Output Mode, press and holdthe
key for 3 seconds while in any mode.
16Abbreviations: Temp.: Temperature Trans.: Transmission
Calib: Calibration
Adjust: Adjustment

POWER ON
pH/Temperature
Display Mode, orCleansing Output
Mode (*1)

Simple Setting Mode

EVT1 value (*5)+

EVT4 value (*6)

(3 sec) (*2)
Manual cleansing mode

+

(*2)

(3 sec) (*3)

Temp. calib. mode+

(3 sec)pH calib. mode+

(3 sec)Trans. output 1
Zero adjust mode+

Group Selection Mode
pH Input Group

Trans. output 1
Span adjust mode

(3 sec)Trans. output 2
Zero adjust mode

Trans. output 2
Span adjust mode

(*4)

(*4)

Setting item
pH 7 calibration
standard

pH inputs formoving average

Temperature
Input GroupElectrode RTD

Temperature inputs
for moving average

EVT1 Action
Group (*5)

EVT1 type(*5)

EVT1 hysteresis

EVT2 ActionGroup

EVT2 type

EVT2 hysteresis

EVT3 Action
Group (*6)

EVT3 type (*6)

EVT3 hysteresis

EVT4 Action
Group (*6)

EVT4 type (*6)

Basic FunctionGroup

Set value lockpH input error
alarm time unit

Zero/SlopeGroup

Zero indication

Slope indication

(*5)

(*6)

EVT4 hysteresis
(*6)

17

6. Key Operation Flowchart

Abbreviations: Temp.: Temperature Calib: Calibration
Trans.: Transmission Adjust: Adjustment

POWER ON
pH/Temperature
Display Mode, orCleansing Output
Mode (*1)+

Simple Setting Mode
EVT1 value

Manual(*2)
Cleansing Mode

(3 sec)(*2)+(3sec)(*3)

Temperature
Calib. mode+

(3 sec)pH calibrationmode+(3 sec)Trans. output 1
Zero adjust mode

Trans. output 1
Span adjust mode+

(3 sec)Trans. output 2
Zero adjust mode

Trans. output 2
Span adjust mode

pH Input Group

Temperature input
Group

pH 7 calibration
standard
P.22

Electrode RTD
P.24

2nd solution
P.22

Reference
temperature

P.22

Decimal point place
P.24

Decimal point place
P.22

Pt100 input wire
type
P.24

pH input filter time
constant
P.23

Cable length
correction

pH input sensor
correction
P.23

Cable cross-section
area
P.24

pH inputs for moving
average
P.23

Temp. inputs formoving average P.24①

P.56
EVT2 value

P.24

P.56
pH calibration
Auto/Manual

EVT3 value
P.57
EVT4 value
P.57[About Setting Items]
EVT1 value

P.24

P.56

• Upper left: pH Display: Indicates the setting item characters. • Lower left: Temperature
Display: Indicates the factory default. • Right side: Indicates the setting item and reference page.

P.57

Setting item in shaded section will be displayed only when the corresponding option isordered.

EVT3 value[About Each Mode and Setting Items](*1) In pH/Temperature Display Mode or Cleansing Output Mode, measurement starts, indicating the item selected in [Backlight selection(p.37)] in the Basic Function group. If the power is turned ON again, the last mode at power OFF (pH/Temperature Display Mode, orCleansing Output Mode) will resume.
(*2) If(Cleansing output) is selected in [EVT1 type to EVT4 type] in the EVT1 to EVT4 Action groups, the unit can enter Manual

cleansing mode. After the Cleansing action is complete, the unit automatically reverts to Cleansing Output Mode.
(*3) If(No temperature compensation) is selected in [Electrode RTD (p.24)] in the Temperature Input group, the unit does not

move to Temperature Calibration mode.

18②

Abbreviation: H/L High/Low limits

EVT1 ActionGroup

EVT2 ActionGroup

EVT1 type
P.25
EVT1 value

Setting items: Same as item
settings for EVT1 action group.
For EVT2, read EVT1 column
and substitute EVT1 with EVT2.
(e.g.)

EVT3 Action
Group

③

Setting items: Same as item
settings for EVT1 action group.
For EVT3, read EVT1 column
and substitute EVT1 with EVT3.
(e.g.)

P.27
EVT1 proportional
band
P.27
EVT1 reset
P.27
EVT1 hysteresis
type
P.28

①

EVT1 ON side

EVT1 pH input error
alarm band when
EVT output ON P.30
EVT1 pH input error
alarm time when
EVT output ON P.31

P.28
EVT1 OFF side
P.28
EVT1 ON delay
time
P.28
EVT1 OFF delay
time
P.29
EVT1 proportional
cycle
P.29
EVT1 output high
limit
P.29
EVT1 output low
limit
P.29

EVT1 pH input error
alarm band when
EVT output OFF P.31
EVT1 pH input error
alarm time when
EVT output OFF P.31
EVT1 cycle
variable range P.31
EVT1 cycle
extended time P.31
EVT1 pH fluctuation
alarm time
P.32
EVT1 pH fluctuation
alarm bandP.32

Output ON time when
EVT1 output ON P.29

EVT1 H/L independent
lower side band P.32

Output OFF time when
EVT1 output ON P.30

EVT1 H/L independent
upper side band P.32

EVT1 pH input error
alarm EVT②

type P.30

EVT1 hysteresis
P.32④[About Key Operation]•+(3 sec): Press and hold theandkeys (in that order) together for 3 sec. The unit will enter Manual cleansing mode.
+(3 sec): Press and hold theandkeys (in that order) together for 3 sec. The unit will enter Temperature Calibration mode.
••+(3sec): Press and hold theandkeys (in that order) together for 3 sec. The unit will enter pH Calibration mode.
•+(3sec): Press and hold theandkeys (in that order) together for 3 sec. The unit will enter Transmission output 1 Zero adjustment mode.
+(3sec): Press and hold theandkeys (in that order) together for 3 sec. The unit will enter Transmission output 2 Zero adjustment mode.
••,: Press theorkey. The unit will enter the next setting item.
• To revert to pH/Temperature Display Mode, or Cleansing Output Mode, press and hold the
key for 3 sec while in any mode.

19Abbreviations: Trans: Transmision,
Temp.: Temperature
Compen: Compensation③

EVT4 Action
Group
Setting items: Same as item
settings for EVT1 action group.
For EVT4, read EVT1 column(p.19)
and substitute EVT1 with EVT4.
(e.g.)

Basic Function
Group

Zero/SlopeGroup

Set value lockZero indication
P.34

P.41

Communication
protocolP.34

Slope indication
P.41

Instrument number
P.34
Communication
speed
P.35

pH color reference
value
P.38

Data bit/Parity

pH color range
P.35

Stop bit④

P.38
Backlight time

P.35

P.38

Transmission output
1 typeP.35

Bar graph indication
P.39

Transmission output
1 high limit
P.35
Transmission output
1 low limit
P.36

EVT output when
input errors occur
P.39
Temp. Display whenno temp. compen. P.39

Transmission output
2 typeP.36

Number of cleansing
cyclesP.39

Transmission output
2 high limit
P.36

Cleansing interval
P.39

Transmission output
2 low limit
P.36

Cleansing time

Trans. output 1 statuswhen calibrating P.37

Restore time after
cleansing
P.40

Trans. output 1 value
HOLD when calibrating
P.37
Trans. output 2 statuswhen calibrating P.37

Trans. output 1 statuswhen cleansing P.40

Trans. output 2 value
HOLD when calibrating
P.37
Backlight selection
P.37
pH color
P.38

20

P.39

Trans. output 1 value
HOLD when cleansing
P.40
Trans. output 2 statuswhen cleansing P.40
Trans. output 2 value
HOLD when cleansing
P.41
pH input error alarmtime unit
P.41

7. Setup
Setup should be done before using this instrument according to the user’s conditions:
Setting the pH input, Temperature input, EVT1, EVT2, EVT3 (EVT3 option) and EVT4
(EVT3 option) types, Serial communication (C5 option), Transmission output 1,
Transmission output 2 (TA2 option), and Indication settings (Backlight selection, pH
color, etc.)
Setup can be conducted in the pH Input group, Temperature Input group, EVT1, EVT2,
EVT3, EVT4 Action groups and Basic Function group.
If the user’s specification is the same as the factory default of the AER-102-PH, or if
setup has already been completed, it is not necessary to set up the instrument. Proceed
to Section “8. Calibration (p.42)”.
7.1 Turn the Power Supply to the AER-102-PH ON.
For approx. 4 seconds after the power is switched ON, the following characters areindicated on the pH Display and Temperature Display.
Depending on the input specification, indication on the Temperature Display differs
as follows:
Pt spec
pH
Temperature
Item selected in
Item selected in [Pt100
Display
Display[Electrode RTD (p.24)]
input wire type (p.24)]
Unlit: No temperaturecompensation: Pt1000: 2-wire type
: Pt100: 3-wire typeCu specpH
Display

Temperature
Display
Unlit

Item selected in[Electrode RTD (p.24)]: No temperaturecompensation: Cu500

During this time, all outputs are in OFF status, and action indicators go off.
After that, measurement starts, indicating the item selected in [Backlight selection(p.37)].
This status is called pH/Temperature Display Mode, or Cleansing Output Mode.

21

7.2 pH Input GroupTo enter the pH Input group, follow the procedure below.
1
Press thekey in pH/Temperature Display Mode, orCleansing Output Mode.
2
Press thekey.
The unit proceeds to the pH Input group, and “pH 7 calibration
standard” item will appear.
Character Setting Item, Function, Setting Range
Factory Default
pH 7 calibration standardJIS• Selects pH 7 calibration value standard.
• Not available if(Manual) is selected in [pH calibration
Auto/Manual].
: JIS (Japanese Industrial standards)•: US standard
2nd solution
pH 4• Selects the 2nd solution for the automatic pH calibration out of
pH 2, pH 4, pH 9 and pH 10 (JIS).
[The 1st solution is fixed at pH 7 (JIS or US standard).]• Not available if(Manual) is selected in [pH calibration
Auto/Manual].
•: pH 2: pH 4: pH 9: pH 10
pH calibration Auto/Manual
Automatic• Selects either automatic or manual pH calibration.
•: Automatic: Manual
Decimal point place
2 digits after decimal point• Selects the decimal point place.
•: No decimal point: 1 digit after decimal point: 2 digits after decimal point

22

Character

Setting Item, Function, Setting Range

Factory Default
0.0 seconds

pH input filter time constant• Sets filter time constant for pH input.
Even when pH measured value before filter process changes
as shown in (Fig. 7.2-1), if the filter time constant “T” is set, the pH
measured value changes as shown in (Fig. 7.2-2) so that pH
measured value after finishing filter process can reach 63% (of thedesired value) after T seconds have passed.
If the filter time constant is set too large, it affects EVT action due tothe delay of response.
(e.g.) In case the LSD (least significant digit) of the pH measured value
prior to filter process is fluctuating, it can be suppressed by using
the filter time constant.
pH measured value

pH measured value

Time (sec)(Fig. 7.2-1)

Time (sec)T(Fig. 7.2-2)• Setting range: 0.0 to 60.0 seconds
pH input sensor correction
0.00• Sets pH input sensor correction value.
This corrects the input value from the pH Combined Electrode Sensor.
When a sensor cannot be set at the exact location where
measurement is desired, the sensor-measured pH may deviate fromthe pH in the measured location. In this case, desired pH can beobtained by adding a sensor correction value.
However, it is effective within the measurement range regardless ofthe sensor correction value.
pH after sensor correction= Current pH + (Sensor correction value)• Setting range: pH -1.40 to 1.40 (*)
pH inputs for moving average
20• Sets the number of pH inputs used to obtain a moving average.
• Setting range: 1 to 120(*) The placement of the decimal point does not follow the selection. It is fixed.

7.3 Temperature Input GroupTo enter the Temperature Input group, follow the procedure below.
1
Press thekey twice in pH/Temperature Display Mode, orCleansing Output Mode.
2
Press thekey.
The unit enters the Temperature Input group, and “Electrode RTD” item will appear.
23

Character

Setting Item, Function, Setting Range
Electrode RTD

Factory Default
Pt spec: Pt1000
Cu spec: Cu500• Selects RTD type of the electrode.
• Depending on the input specification, the following can be selected.
Pt spec: No temperature compensation: Pt1000: Pt100
Cu spec: No temperature compensation: Cu500
Reference temperature
25.0• Sets reference temperature of temperature compensation.
(No temperature compensation) is• Available whenselected in [Electrode RTD].
• Setting range: 5.0 to 95.0
Decimal point place
1 digit after decimal point• Selects decimal point place to be indicated on the Temperature Display.
•: No decimal point: 1 digit after decimal point
Pt100 input wire type3-wire type
• Selects the input wire type when
(Pt100) is selected in[Electrode RTD].
• Available only when
(Pt100) is selected in [Electrode RTD].
•: 2-wire type
: 3-wire type
Cable length correction
0.0 m• Sets the cable length correction value.
• Available when
(2-wire type) is selected in [Pt100 input
wire type].
• Setting range: 0.0 to 100.0 m
Cable cross-section area
0.30 mm2• Sets the cable cross-section area.
• Available when
(2-wire type) is selected in [Pt100 input
wire type].
• Setting range: 0.10 to 2.00 mm2Temperature inputs for moving
20
average• Sets the number of temperature inputs used to obtain a moving
average.
• Setting range: 1 to 120

24

7.4 EVT1 Action GroupTo enter the EVT1 Action group, follow the procedure below.
This group is not available if Transmission output 2 (TA2 option) is ordered.
1
Press thekey 3 times in pH/Temperature Display Mode, orCleansing Output Mode.
2
Press thekey.
The unit proceeds to the EVT1 Action group, and ”EVT1 type“ will appear.
Character

Setting Item, Function, Setting Range
Factory Default
EVT1 type
No action• Selects an EVT1 output (Contact output 1) type. (Fig 7.4-1, pp.26,27)
Note: If EVT1 type is changed, EVT1 value defaults to 0.00 or 0.0.
• If
(No temperature compensation) is selected in [Electrode
RTD (p.23)], even if Temperature input low limit or Temperature input
high limit action is selected, EVT1 action will be disabled.
•: No action: pH input low limit action: pH input high limit action: Temperature input low limit action: Temperature input high limit action: Error output [When the error type is “Error” (Table 7.4-1),
the output is turned ON.]
: Fail output [When the error type is “Fail” (Table 7.4-1),
the output is turned ON.]
: Cleansing output: pH input error alarm output: pH fluctuation alarm output: pH input High/Low limits independent action: Temperature input High/Low limits independent action• Error output, Fail output(Table 7.4-1)
Error
Error
Description
Type
Contents
When calibrating, the response of the pH
Error Response
Combined Electrode Sensor is slow. When the
Speed Error
difference between the input and each of the 1st
and 2nd solutions are within pH 1.50, andinput fluctuation is over pH 0.05 (in 10
seconds of assessment cycles) for 5 minutes,
this is assumed to be an error. However, if input
fluctuation is less than or equal to pH 0.05,
this is assumed to be within the normal range.
Error Electrode
When calibrating, sensitivity of the pH
Sensitivity Error Combined Electrode Sensor has
deteriorated. The difference between 1st
and 2nd standard solution value after
calibration is less than or equal to pH 2.00.
Whencalibrating pH 7, the difference inError Asymmetryelectromotive
force between the sensorPotential Error
measured value and standard value
exceeds the equivalent of pH 1.50.
Error Standard
The specified standard solution has not
Solution Error
been used. When pH 1.50 is exceeded
for the 1st and 2nd solutions.

25

Character

Setting Item, Function, Setting Range

Error
Error
Type
Contents
Error Solution Temperature Error
Error Outside Temp.
Compen. Range
OutsideTemp.
Error
Compen. Range
Temp. Sensor
FailBurnout
Temp. Sensor
FailShort-circuited

Description
When temperature is 55 or more at
pH 10 solution.
Measured temperature has exceeded
110.0 .
Measured temperature is less than
0.0 .
Temperature sensor lead wire isburnt out.
Temperature sensor lead wire isshort-circuited.

Abbreviations: Temp.: Temperature,• EVT1 Action
EVT1 Type

Factory Default

Compen: Compensation

P Control Action
EVT1 proportional band

ON/OFF Control Action
If Medium Value is selected in [EVT1hysteresis type]:
EVT1 ON sides

ON

pH input low limit
action,

ON
OFF
EVT1
value

Temperature
input low limit
actionOFF
EVT1 value
If Reference Value is selected in [EVT1hysteresis type]:
EVT1 ON side*(Activated basedon indication
value)

EVT1 OFF side*ON
OFF
EVT1 value
EVT1 proportional band

If Medium Value is selected in [EVT1hysteresis type]:
EVT1 ON sides

ON

pH input high limit
action,Temperature
input high limit
action

ON
OFF
EVT1
value

OFF
EVT1 value
If Reference Value is selected in [EVT1hysteresis type]:(Activated basedon indication
value)

EVT1 OFF side*

EVT1 ON side*ON
OFF

EVT1 value

26

Character Setting Item, Function, Setting Range
Factory Default* (on p.26) Setting Example:)] is set to 0.00 or 0.0, EVT1 output can be turned ON
If [EVT1 ON side (at the value set in [EVT1 value ()].
If [EVT1 OFF side ()] is set to 0.00 or 0.0, EVT1 output can be turned OFF
at the value set in [EVT1 value ()].
EVT1 TypepH input High/Low
limits independentaction,Temperature input
High/Low limits
independent action(Activated basedon indication
value)

ON/OFF Control Action
EVT1 hysteresis

EVT1 hysteresis

ON
OFF
EVT1 High/Low limits
independent lower side band

EVT1 value

EVT1 High/Low limits
independent upper side band

(Fig. 7.4-1)
EVT1 value

pH input: pH 0.00
Temperature input: 0.0• Sets EVT1 value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Setting range: pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)
EVT1 proportional band
pH input: pH 0.00
Temperature input: 0.0• Sets EVT1 proportional band.
ON/OFF control action when set to 0.00 or 0.0.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Setting range: pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)
EVT1 reset
pH input: pH 0.00
Temperature input: 0.0• Sets EVT1 reset value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the ON/OFF control action.
• Setting range: pH input: pH 4.00 (*)
Temperature input: 10.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

27

Character

Setting Item, Function, Setting Range
Factory Default
EVT1 hysteresis type
Reference Value• Selects EVT1 output hysteresis type (Medium or Reference Value).
(Fig. 7.4-1, pp. 26, 27)• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
.• Not available for the P control action.
•: Medium Value
Sets the same value for both ON and OFF sides inrelation to EVT1 value.
Only ON side needs to be set.
: Reference Value
Sets individual values for ON and OFF sides in relation
to EVT1 value.
Both ON and OFF sides need to be set individually.
EVT1 ON side
pH input: pH 0.10
Temperature input: 1.0• Sets the span of EVT1 ON side. (Fig. 7.4-1, p.26)
If(Medium Value) is selected in [EVT1 hysteresis type],
the span of ON/OFF side will be the same value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Setting range: pH input: pH 0.00 to 4.00 (*)
Temperature input: 0.0 to 10.0 (*)
EVT1 OFF side
pH input: pH 0.10
Temperature input: 1.0• Sets the span of EVT1 OFF side. (Fig. 7.4-1, p.26)• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the P control action, or if(Medium Value)
is selected in [EVT1 hysteresis type].
• Setting range: pH input: pH 0.00 to 4.00 (*)
Temperature input: 0.0 to 10.0 (*)
EVT1 ON delay time
0 sec.
• Sets EVT1 delay time.
The EVT1 output does not turn ON (under the conditions of turningON) after the input value exceeds the EVT1 value until the time set
in [EVT1 ON delay time] elapses.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the P control action.
• Setting range: 0 to 10000 seconds(*) The placement of the decimal point does not follow the selection. It is fixed.

28

Character

Setting Item, Function, Setting Range

Factory Default

EVT1 OFF delay time
0 sec.
• Sets EVT1 delay time.
The EVT1 output does not turn OFF (under the conditions of turningOFF) after the input value exceeds the EVT1 value until the time set
in [EVT1 OFF delay time] elapses.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the P control action.
• Setting range: 0 to 10000 seconds
EVT1 proportional cycle
30 sec.
• Sets EVT1 proportional cycle.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the ON/OFF control action.
• Setting range: 1 to 300 seconds
EVT1 output high limit
100%• Sets EVT1 output high limit value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the ON/OFF control action.
• Setting range: EVT1 output low limit to 100%
EVT1 output low limit0%• Sets EVT1 output low limit value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the ON/OFF control action.
• Setting range: 0% to EVT1 output high limit
Output ON Time when EVT1 Output ON
0 sec.
• Sets Output ON time when EVT1 output is ON.
If ON time and OFF time are set, EVT1 output can be turned ON/OFF
in a configured cycle when EVT1 output is turned ON.(Fig. 7.4-2, p.30)• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for P control action.
• Setting range: 0 to 10000 seconds

29

Character

Factory Default
Output OFF Time when EVT1 Output ON 0 sec.
• Sets Output OFF time when EVT1 output is ON.
If ON time and OFF time are set, EVT1 output can be turned ON/OFF
in a configured cycle when EVT1 output is turned ON.(Fig. 7.4-2, p.30)• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for P control action.
• Setting range: 0 to 10000 seconds
Setting Item, Function, Setting Range

Timing chart (Output ON time and OFF time when EVT1 output is ON)
ON
Actual EVT1
outputOFF

ON
EVT1 output towhich ON timeand OFF time OFF
are set.

ON time is turned
OFF, caused by theactual EVT1 output
turning OFF.
ON
time

OFF
time

ON
time

OFF
time

ON
time

(Fig. 7.4-2)
EVT1 pH input error alarm EVT type
No action• Selects EVT output type (except EVT1 type) in order to assess
EVT1 pH input error alarm.
• Available only when
(pH input error alarm output) is
selected in [EVT1 type].
•: No action: EVT2 type
: EVT3 type
: EVT4 type
EVT1 pH input error alarm band
pH 0.00
when EVT output ON• Sets band to assess EVT1 pH input error alarm when EVT output(selected in [EVT1 pH input error alarm EVT type]) is ON.
• Available only when
(pH input error alarm output) is
selected in [EVT1 type].
• Setting range: pH 0.00 to 14.00
When set to 0.00, pH input error alarm is disabled.

30

Character

Setting Item, Function, Setting Range

Factory Default
0 sec.

EVT1 pH input error alarm time
when EVT output ON• Sets time to assess EVT1 pH input error alarm when EVT output(selected in [EVT1 pH input error alarm EVT type]) is ON.
• Available only when
(pH input error alarm output) is
selected in [EVT1 type].
• Setting range: 0 to 10000 seconds or minutes (*)
When set to 0, pH input error alarm is disabled.
EVT1 pH input error alarm band
pH 0.00
when EVT output OFF• Sets band to assess EVT1 pH input error alarm when EVT output(selected in [EVT1 pH input error alarm EVT type]) is OFF.
• Available only when
(pH input error alarm output) is
selected in [EVT1 type].
• Setting range: pH 0.00 to 14.00
When set to 0.00, pH input error alarm is disabled.
EVT1 pH input error alarm time
0 sec.
when EVT output OFF• Sets time to assess EVT1 pH input error alarm when EVT output(selected in [EVT1 pH input error alarm EVT type]) is OFF.
• Available only when
(pH input error alarm output) is
selected in [EVT1 type].
• Setting range: 0 to 10000 seconds or minutes (*)
When set to 0, pH input error alarm is disabled.
EVT1 cycle variable range
50.0%• Sets EVT1 cycle variable range.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the ON/OFF control action.
• Setting range: 1.0 to 100.0%
EVT1 cycle extended time
0 sec.
• Sets EVT1 cycle extended time.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type].
• Not available for the ON/OFF control action.
• Setting range: 0 to 300 seconds(*) Time unit follows the selection in [pH input error alarm time unit].

31

Character

Factory Default
EVT1 pH fluctuation alarm time
0 hours• Sets time to assess EVT1 pH fluctuation alarm.
Disabled when set to 0 (zero).
• Available only when
(pH fluctuation alarm output) is
selected in [EVT1 type].
• Setting range: 0 to 72 hours
EVT1 pH fluctuation alarm band
pH 0.00• Sets the band to assess EVT1 pH fluctuation alarm.
Disabled when set to pH 0.00.
• Available only when
(pH fluctuation alarm output) is
selected in [EVT1 type].
• Setting range: pH 0.00 to 14.00
EVT1 High/Low limits independent
pH input: pH 0.00
lower side band
Temperature input: 0.0• Sets the lower side band of EVT1 High/Low limits independentaction. (Fig. 7.4-1)(p.27)
Disabled when set to pH 0.00 or 0.0 .
• Available when
(pH input High/Low limits independentaction) or(Temperature input High/Low limits independentaction) is selected in [EVT1 type].
• Setting range:
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT1 High/Low limits independent
pH input: pH 0.00
upper side band
Temperature input: 0.0• Sets the upper side band of EVT1 High/Low limits independentaction. (Fig. 7.4-1)(p.27)
Disabled when set to pH 0.00 or 0.0 .
• Available when
(pH input High/Low limits independentaction) or(Temperature input High/Low limits independentaction) is selected in [EVT1 type].
• Setting range:
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
pH input: 0.10 pH
EVT1 hysteresis
Temperature input: 1.0• Sets hysteresis of EVT1 High/Low limits independent action.
(Fig. 7.4-1)(p.27)• Available when
(pH input High/Low limits independentaction) or(Temperature input High/Low limits independentaction) is selected in [EVT1 type].
• Setting range:
pH input: pH 0.01 to 4.00
Temperature input: 0.1 to 10.0
Setting Item, Function, Setting Range

32

7.5 EVT2 Action GroupTo enter the EVT2 Action group, follow the procedure below.
1
Press thekey 4 times in pH/Temperature Display Mode, orCleansing Output Mode.
2
Press thekey.
The unit proceeds to the EVT2 Action group, and ”EVT2 type“ appears.
Action, indication condition and setting range of the EVT2 Action group are the sameas those of EVT1 Action group.
Substitute EVT1 with EVT2, and refer to the EVT1 Action group (pp. 25 to 32).
(e.g.)

7.6 EVT3 Action GroupEVT3 Action group is indicated only when EVT3, EVT4 outputs (EVT3 option) are/is
ordered.
To enter the EVT3 Action group, follow the procedure below.
1
Press thekey 5 times in pH/Temperature Display Mode, orCleansing Output Mode.
2
Press thekey.
The unit proceeds to the EVT3 Action group, and ”EVT3 type“ appears.
Action, indication condition and setting range of the EVT3 Action group are the sameas those of EVT1 Action group.
Substitute EVT1 with EVT3, and refer to the EVT1 Action group (pp. 25 to 32).
(e.g.)

7.7 EVT4 Action Group
EVT4 Action group is indicated only when EVT3, EVT4 outputs (EVT3 option) are/is
ordered.
To enter the EVT4 Action group, follow the procedure below.
1
Press thekey 6 times in pH/Temperature Display Mode, orCleansing Output Mode.
2
Press thekey.
The unit proceeds to the EVT4 Action group, and ”EVT4 type“ appears.
Action, indication condition and setting range of the EVT4 Action group are the sameas those of EVT1 Action group.
Substitute EVT1 with EVT4, and refer to the EVT1 Action group (pp. 25 to 32).
(e.g.)

33

7.8 Basic Function GroupTo enter the Basic Function group, follow the procedure below.
1
Press thekey 5 times in pH/Temperature Display Mode, orCleansing Output Mode.
If EVT3, EVT4 outputs (EVT3 option) are/is ordered, press thekey
7 times in pH/Temperature Display Mode, or Cleansing Output Mode.
2
Press thekey.
The unit enters the Basic Function group, and the “Set Value Lock” item
will appear.
Character Setting Item, Function, Setting Range
Factory Default
Set value lock
Unlock• Locks the set values to prevent setting errors.
•(Unlock): All set values can be changed.
(Lock 1) : None of the set values can be changed.
(Lock 2) : Only EVT1, EVT2, EVT3, EVT4 values can bechanged.
(Lock 3) : All set values – except Electrode RTD, Temperature calibration value, pH calibration value,
pH calibration Auto/Manual, Transmission output
1 Zero and Span adjustment values, Transmission
output 2 Zero and Span adjustment values – canbe temporarily changed.
However, they revert to their previous value after
the power is turned off because they are notsaved in the non-volatile IC memory.
Do not change setting items (EVT1, EVT2, EVT3,
EVT4 types). If they are changed, they will affectother setting items.
Be sure to select Lock 3 when changing the set
value frequently via software communication. (Ifa value set via software communication is thesame as the value before the setting, the value
will not be written in the non-volatile IC memory.)
Communication protocol
Shinko protocol• Selects communication protocol.
• Available when the Serial communication (C5 option) is ordered.
•: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode
Instrument number0• Sets the instrument number of this unit. (The instrument numbers
should be set one by one when multiple instruments are connected,
otherwise communication is impossible.)• Available when the Serial communication (C5 option) is ordered.
• Setting range: 0 to 95
34

Character

Setting Item, Function, Setting Range
Factory Default
Communication speed
9600 bps• Selects a communication speed equal to that of the host computer.
• Available when the Serial communication (C5 option) is ordered.
•: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even• Selects data bit and parity.
• Available when the Serial communication (C5 option) is ordered.
•: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit• Selects the stop bit.
• Available when the Serial communication (C5 option) is ordered.
•: 1 bit: 2 bits
Transmission output 1 typepH transmission• Selects Transmission output 1 type.
• If(No temperature compensation) is selected in [Electrode
RTD (p.23)], and if(Temperature transmission) is selected,
the transmission output 1 value will become the value set in[Reference temperature (p.24)], regardless of selection in[Temperature Display when no temperature compensation (p.39)].
•: pH transmission: Temperature transmission: EVT1 MV transmission (*1)
: EVT2 MV transmission: EVT3 MV transmission (*2)
: EVT4 MV transmission (*2)
Transmission output 1 highpH transmission: pH 14.00
limit
Temperature transmission: 100.0
MV transmission: 100.0%• Sets the Transmission output 1 high limit value. (This value correponds
to 20 mA DC output.)
If Transmission output 1 high limit and low limit are set to the samevalue, transmission output 1 will be fixed at 4 mA DC.
• Setting range:
pH transmission: Transmission output 1 low limit to pH 14.00 (*3)
Temperature transmission: Transmission output 1 low limit to 100.0 (*3)
MV transmission: Transmission output 1 low limit to 100.0%(*1) Not available when Transmission output 2 (TA2 option) is ordered.
(*2) Available when EVT3, EVT4 outputs (EVT3 option) are/is ordered.
(*3) The placement of the decimal point does not follow the selection. It is fixed.

35

Character

Factory Default
pH transmission: pH 0.00
Temperature transmission: 0.0
MV transmission: 0.0%
• Sets the Transmission output 1 low limit value. (This value correponds
to 4 mA DC output.)
If Transmission output 1 high limit and low limit are set to the samevalue, transmission output 1 will be fixed at 4 mA DC.
• Setting range:
pH transmission: pH 0.00 to Transmission output 1 high limit (*1)
Temperature transmission: 0.0 to Transmission output 1 high limit (*1)
MV transmission: 0.0% to Transmission output 1 high limit
Transmission output 2 type
Temperature transmission• Selects Transmission output 2 type.
• If(No temperature compensation) is selected in [Electrode
RTD (p.23)], and if(Temperature transmission) is selected,
the transmission output 2 value will become the value set in[Reference temperature (p.24)], regardless of selection in[Temperature Display when no temperature compensation (p.39)].
•: pH transmission: Temperature transmission: EVT2 MV transmission: EVT3 MV transmission (*2)
: EVT4 MV transmission (*2)
Transmission output 2 high limit
pH transmission: pH 14.00
Temperature transmission: 100.0
MV transmission: 100.0%• Sets the Transmission output 2 high limit value. (This value correponds
to 20 mA DC output.)
If Transmission output 2 high limit and low limit are set to the samevalue, transmission output 2 will be fixed at 4 mA DC.
• Setting range:
pH transmission: Transmission output 2 low limit to pH 14.00 (*1)
Temperature transmission: Transmission output 2 low limit to 100.0 (*1)
MV transmission: Transmission output 2 low limit to 100.0%
Transmission output 2 low limit
pH transmission: pH 0.00
Temperature transmission: 0.0
MV transmission: 0.0%
• Sets the Transmission output 2 low limit value. (This value correponds
to 4 mA DC output.)
If Transmission output 2 high limit and low limit are set to the samevalue, transmission output 2 will be fixed at 4 mA DC.
• Setting range:
pH transmission: pH 0.00 to Transmission output 2 high limit (*1)
Temperature transmission: 0.0 to Transmission output 2 high limit (*1)
MV transmission: 0.0% to Transmission output 2 high limit
Setting Item, Function, Setting Range
Transmission output 1 low limit(*1) The placement of the decimal point does not follow the selection. It is fixed.
(*2) Available if EVT3, EVT4 outputs (EVT3 option) are/is ordered.

36

Character

Setting Item, Function, Setting Range
Factory Default
Transmission output 1 status when
Last value HOLD
calibrating• Selects Transmission output 1 status when calibrating pH.
• Selection range: Last value HOLD (Retains the last value before pH
calibration, and outputs it.): Set value HOLD (Outputs the value set in [Transmission
output 1 value HOLD when calibrating].): Measured value (Outputs the measured value whencalibrating pH.)
Transmission output 1 value HOLD
pH transmission: pH 0.00
when calibrating
Temperature transmission: 0.0
MV transmission: 0.0%
• Sets Transmission output 1 value HOLD.
• Available only when(Set value Hold) is selected in[Transmission output 1 status when calibrating].
• Setting range:
pH transmission: pH 0.00 to 14.00 (*)
Temperature transmission: 0.0 to 100.0 (*)
MV transmission: 0.0 to 100.0%
Transmission output 2 status when
Last value HOLD
calibrating• Selects Transmission output 2 status while calibrating pH.
• Selection range: Last value HOLD (Retains the last value before pH
calibration, and outputs it.): Set value HOLD (Outputs the value set in [Transmission
output 2 value HOLD when calibrating].): Measured value (Outputs the measured value whencalibrating pH.)
Transmission output 2 value HOLD
pH transmission: pH 0.00
when calibrating
Temperature transmission: 0.0
MV transmission: 0.0%
• Sets Transmission output 2 value HOLD.
• Available only when(Set value HOLD) is selected in[Transmission output 2 status when calibrating].
• Setting range:
pH transmission: pH 0.00 to 14.00 (*)
Temperature transmission: 0.0 to 100.0 (*)
MV transmission: 0.0 to 100.0%
Backlight selection
All are backlit• Selects the display to backlight.
•: All are backlit.
: pH Display: Temperature Display: Action indicators: pH Display + Temperature Display: pH Display + Action indicators: Temperature Display + Action indicators(*) The placement of the decimal point does not follow the selection. It is fixed.

37

Character

Setting Item, Function, Setting Range

Factory Default

pH colorRed• Selects a color for the pH Display.
•: Green: Red: Orange: pH color changes continuously.
The pH Display color changes according to [pH color
reference value] and [pH color range] settings.
• When pH is lower than [pH color reference value] – [pHcolor range]: Orange• When pH is within [pH color reference value][pHcolor range]: Green• When pH is higher than [pH color reference value] + [pHcolor range]: Red
OrangeGreenRed: pH color reference value

Hys HysHys : pH color range(Fig. 7.8-1)
pH color reference value

pH 7.00• Sets a reference value for pH color to be green whencolor changes continuously) is selected in [pH color].
• Setting range: pH 0.00 to 14.00 (*)
pH color range
pH 2.00• Sets a range for pH color to be green when
(pH colorchanges continuously) is selected in [pH color].
• Setting range: pH 0.10 to 14.00 (*)
Backlight time
0 minutes• Sets time to backlight from no operation status until backlight isswitched off.
When set to 0, the backlight remains ON.
Backlight relights by pressing any key while backlight is OFF.
• Setting range: 0 to 99 minutes(*) The placement of the decimal point does not follow the selection. It is fixed.

38

(pH

Character

Setting Item, Function, Setting Range
Factory Default
Bar graph indication
No indication• Selects bar graph indication.
•: No indication: Transmission output 1: Transmission output 2
Segments will light in accordance with the output.
Scale is -5 to 105%.
Segments will light from left to right in accordancewith the output.
[When the output is 50%]

-5%

50%

105%
Lit from left to right in accordance with the output.
(Fig. 7.8-2)
EVT output when input errors occur Disabled• If input errors occur, such as pH Combined Electrode Sensor is disconnected or short-circuited, EVT output can be Enabled or Disabled.
If “Enabled” is selected, EVT output will be maintained when input
errors occur.
If “Disabled” is selected, EVT output will be turned OFF when input
errors occur.
• Available when
(pH input low limit action),(pH
input high limit action),(Temperature input low limit action),or(Temperature input high limit action) is selected in [EVTtype].
•: Disabled: Enabled
Temperature Display when no
Unlit
temperature compensation• Selects an item to be indicated on the Temperature Display when
(No temperature compensation) is selected in [Electrode
RTD (p.23)].
• Available only when
(No temperature compensation) is
selected in [Electrode RTD (p.24)].
•: Unlit: Reference temperature
Temperature set in [Reference temperature (p.24)] will be
indicated.
Number of cleansing cycles
0 (Continuous cleansing)• Sets the number of cleansing outputs. (Fig. 7.8-3) (p.40)• Available for this setting item and all following items if(Cleansing output) is selected in any of [EVT1 to EVT4 types (pp. 25 to 27)].
• Setting range: 0 to 10 (0: Continuous cleansing)
Cleansing interval
360 minutes• Sets an interval between cleansings. (Fig. 7.8-3)• Setting range: 60 to 3000 minutes
Cleansing time
600 sec.
• Sets the cleansing output time in the cleansing output interval.(Fig. 7.8-3)• Setting range: 1 to 1800 seconds
39

Character

Setting Item, Function, Setting Range
Factory Default
Restore time after cleansing
600 sec.
• Sets the time to restore units to normal operation after cleansing
output. (Fig. 7.8-3)• Setting range: 1 to 1800 seconds• Cleansing Output Action

Programmed Cleansing Programmed Cleansing
actionactionCno: Number of cleansing cycles
Cint: Cleansing interval
Ctm: Cleansing time
Rtm: Restore time after cleansing

Programmed
actionCleansing(Fig. 7.8-3)
Transmission output 1 status
Last value HOLD
when cleansing• Selects Transmission output 1 output status when cleansing
action is performing.
•: Last value HOLD (Retains the last value before cleansing
action, and outputs it.): Set value HOLD (Outputs the value set in [Transmission
output 1 value HOLD when cleansing].): Measured value (Outputs the measured value whencleansing action is performing.)
Transmission output 1 value HOLD pH transmission: pH 0.00
when cleansing
Temperature transmission: 0.0
MV transmission: 0.0%
• Sets Transmission output 1 value HOLD.
Available only when(Set value HOLD) is selected in[Transmission output 1 status when cleansing].
• Setting range:
pH transmission: pH 0.00 to 14.00 pH (*)
Temperature transmission: 0.0 to 100.0 (*)
MV transmission: 0.0 to 100.0%
Transmission output 2 status
Last value HOLD
when cleansing• Selects Transmission output 2 output status when cleansing
action is performing.
•: Last value HOLD (Retains the last value before cleansing
action, and outputs it.): Set value HOLD (Outputs the value set in [Transmission
output 1 value HOLD when cleansing].): Measured value (Outputs the measured value whencleansing action is performing.)
40

Character

Factory Default
pH transmission: pH 0.00
Temperature transmission: 0.0
MV transmission: 0.0%
• Sets Transmission output 2 value HOLD.
Available only when(Set value HOLD) is selected in[Transmission output 2 status when cleansing].
• Setting range:
pH transmission: pH 0.00 to 14.00 (*)
Temperature transmission: 0.0 to 100.0 (*)
MV transmission: 0.0 to 100.0%
pH input error alarm time unit
Second(s)• Selects the time unit of pH input error alarm.
• Selection item
: Second(s): Minute(s)Setting Item, Function, Setting Range
Transmission output 2 value HOLD
when cleansing

7.9 Zero/Slope Indication GroupTo enter the Zero/Slope Indication group, follow the procedure below.
1
Press thekey 6 times in pH/Temperature Display Mode, orCleansing Output Mode.
If EVT3, EVT4 outputs (EVT3 option) are/is ordered, press thekey
8 times in pH/Temperature Display Mode, or Cleansing Output Mode.
2
Press thekey.
The unit enters the Zero/Slope Indication group, and the “Zero indication”
item will appear.
Character

Setting Item, Function, Indication Range
Factory Default
Zero indication
0.0 mV• Indicates potential difference when pH 7 is calibrated.
However, if Manual calibration is performed, zero indication value
calculated at previous automatic calibration will not be updated.
If calibration is not successfully completed, zero indication will show
the value before calibration.
• Indication range: Voltage equivalent to pH 1.5
Slope indication
59.2 mV• From the voltage calibrated at pH calibration, electromotive force forthe change of pH 1 will be indicated. However, if calibration is not
successfully completed, slope indication will show the value before
calibration.
• Indication range: Voltage equivalent to pH 0.00 to 14.00

41

8. Calibration
pH Calibration mode, Temperature Calibration mode, Transmission output 1 and 2
adjustment modes are described below.
8.1 pH Calibration Mode
For pH measurement using the glass electrode method, pH in the sensor location,
electrode performance and standard solution accuracy respectively play an importantrole for obtaining reliable data.
There are 2 methods in pH calibration: Automatic Calibration and Manual Calibration.
If(Automatic) is selected in [pH Calibration Auto/Manual (p.22)], pH will be
automatically calibrated.
If(Manual) is selected in [pH Calibration Auto/Manual (p.22)], pH will becalibrated manually.
When(No temperature compensation) is selected in [Electrode RTD (p.24)],
calibration will be automatically performed at 25 basis.
Perform pH calibration while pH measured value is in a stable status.
The unit cannot enter pH Calibration mode in the following cases:• When(Lock 1),
(Lock 2) or(Lock 3) is selected in [Setvalue lock (p.34)].
• When(Cleansing output) is selected in any of [EVT1 to EVT4 types (pp. 25
to 27)], and cleansing action is performing using the ‘Cleansing time’ and ‘Restore timeafter cleansing’ settings.

8.1.1 Automatic Calibration
The 1st point standard solution [pH 7 (JIS or US standard)] selected in [pH7 calibration
standard (p.22)] is automatically calibrated first. Then, the 2nd point standard solution[any one of pH 2, pH 4, pH 9 or pH 10 (JIS)] selected in [2nd Solution (p.22)] is calibrated.
The pH value (based on JIS Z8802) at each temperature of pH standard solution will
be automatically calculated.
The following outlines the procedure for Automatic calibration.
(1) 1st Point Calibration
1 Immerse the pH Combined Electrode Sensor in the 1st point standard solution (pH 7).
When selecting(Last value HOLD) in [Transmission output 1 statuswhen calibrating (p.37)] or in [Transmission output 2 status when calibrating] (p.37)],
select it while the pH Combined Electrode Sensor is being immersed in the solution
currently calibrated.
After that, immerse the pH Combined Electrode Sensor in the 1st point standard
solution (pH 7).
2 Press and hold the
key andkey (in that order) together for 3 seconds
in pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters pH Calibration mode, and indicates the following:
Display
Indicated Contents
pH Display
Unlit
Temperature Display
42

3

Press thekey.
Automatic calibration of the 1st point starts.
During Automatic calibration, pH on the pH Display flashes.
Automatic calibration is carried out using the Automatic electrode quality
evaluation function (*).
When flashing stops, automatic calibration of the 1st point is complete.
(*) pH 7 calibration standard (p.22) and values calibrated by the Automaticelectrode quality evaluation function are shown below.
pH 7 Calibration StandardJIS
US standard

Value Calibrated by AutomaticElectrode Quality Evaluation Function
pH 6.86
pH 7.00(2) 2nd Point Calibration
1 Confirm that automatic calibration of the 1st point is complete, then press thekey.
The 2nd standard solution will be shown on the display as follows:
Display
Indicated Contents
pH Display
Unlit
pH standard solution selected in [2ndTemperature Display
solution (p.22)].
2

Rinse the electrode, and immerse the pH Combined Electrode Sensor in the
2nd standard solution.
3 Press the
key.
Automatic calibration for the 2nd point starts.
During Automatic calibration, pH on the pH Display flashes.
Automatic calibration is carried out using the Automatic electrode quality
evaluation function.
When flashing stops, automatic calibration of the 2nd point will be complete.
4 Confirm that automatic calibration of the 2nd point is complete, then press the
key.
The newly calibrated values will be applied to the unit, indicating the following:
Display
Indicated Contents
pH Display
Temperature Display
pH automatic calibration is now complete.
5

Press thekey.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

8.1.2 Manual Calibration
Manual calibration can be carried out using 2 types of solution with a differenceof 2 pH or more.
The following outlines the procedure for Manual calibration.
43

(1) 1st Point Calibration
1 Immerse the pH Combined Electrode Sensor in the 1st standard solution.
When selecting(Last value HOLD) in [Transmission output 1 statuswhen calibrating (p.37)] or in [Transmission output 2 status when calibrating] (p.37)],
select it while the pH Combined Electrode Sensor is being immersed in the solution
currently calibrated.
After that, immerse the pH Combined Electrode Sensor in the 1st point standard
solution.
2 Press and hold the
key andkey (in that order) together for 3 seconds
in pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters pH Calibration mode, and indicates the following:
Display
pH Display

Indicated Contents
Unlit

Temperature Display
Press thekey.
The unit enters the 1st point manual calibration mode, indicating the following:
Display
Indicated Contents
pH Display
Indicatesand pH alternately.
Temperature Display
Calibrated value
4 Set a calibration value with theor
key while checking the pH.
pH calibration value: -7.00 to 7.00
5 Press thekey.
The 1st point calibration is completed, indicating the following:
Display
Indicated Contents
pH Display
Unlit
Temperature Display
3(2) 2nd Point Calibration
1 Rinse the electrode, and immerse the pH Combined Electrode Sensor in the
2nd standard solution.
2 Press thekey.
The 2nd point can be calibrated manually, indicating the following:
Display
Indicated Contents
pH Display
Indicatesand pH alternately.
Temperature Display
Calibrated value
3 Set a calibration value with theor
key while checking the pH.
pH calibration value: -7.00 to 7.00
4 Press thekey.
The 2nd point calibration is completed. The newly calibrated values will beapplied to the unit, indicating the following:
Display
Indicated Contents
pH Display
Temperature Display
Manual pH calibration is now complete.
5 Press thekey.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.
44

8.1.3 Error Code during pH Calibration
During pH calibration, if pH calibration cannot be performed due to unstable pH input
or temperature compensation error, etc., the error code (Table 8.1.3-1) will flash on
the Temperature Display.
To cancel the error code, press the
key.
Check the standard solution and pH Combined Electrode Sensor, and calibrate again.
If(Error output) is selected in [EVT1 type (pp.25 to 27)], and when theerror type is “Error” in (Table 8.1.3-1), the EVT1 output will be turned ON.
The same applies to EVT2, EVT3 and EVT4.
If(Fail output) is selected in [EVT1 type (pp.25 to 27)], and when the error
type is “Fail” in (Table 8.1.3-1), the EVT1 output will be turned ON.
The same applies to EVT2, EVT3 and EVT4.
(Table 8.1.3-1)
Error
Error
Error
Code
Type
Contents
Error Response
Speed Error

Error

Error

Error

Error

Description

Occurrence

When calibrating, the response of
the pH Combined Electrode Sensor
is slow.
When the difference between the
input and each of the 1st and 2nd
solutions are within pH 1.50, andinput fluctuation is over pH 0.05
(in 10 seconds of assessment
cycles) for 5 minutes, this is
assumed to be an error.
However, if input fluctuation is lessthan or equal to pH 0.05, this is
assumed to be within the normal
range.
Electrode
When calibrating, sensitivity of theSensitivity Error pH Combined Electrode Sensor has Whencalibrating
deteriorated.
The difference between 1st and 2nd
standard solution value after
calibration is less than or equal topH 2.00.
Asymmetry
When calibrating pH 7, thePotential Error
difference in electromotive force
between the sensor-measured value
and standard value exceeds theequivalent of pH 1.50.
Standard
The specified standard solution has
Solution Error
not been used.
When pH 1.50 is exceeded for the
1st and 2nd solutions.
Solution TemWhen temperature is 55 or moreat pH 10 solution.
perature Error

45

Error
Code

Error
Error
Type
Contents
Temp. Sensor
FailBurnout
Temp. Sensor
FailShort-circuited
OutsideTemp.
Error
Compensation
Range
OutsideTemp.
Error
Compensation
Range

Description
Temperature sensor lead wire isburnt out.
Temperature sensor lead wire isshort-circuited.
Measured temperature has
exceeded 110.0 .

OccurrenceWhenmeasuringor
calibrating

Measured temperature is lessthan 0.0 .

(Abbreviation: Temp.: Temperature)

8.2 Temperature Calibration ModeTo calibrate a temperature, set a temperature calibration value.
If(No temperature compensation) is selected in [Electrode RTD (p.24)],
Temperature Calibration mode is not available.
The unit cannot enter Temperature Calibration mode in the following cases:• If(Lock 1),
(Lock 2) or(Lock 3) is selected in [Setvalue lock (p.34)]• If(Cleansing output) is selected in any of [EVT1 to EVT4 types (pp. 25
to 27)], and when cleansing action is performing using the ‘Cleansing time’ and‘Restore time after cleansing’ settings
When a sensor cannot be set at the exact location where measurement is desired,
the resulting measured temperature may deviate from the temperature in the desired
location. In this case, the desired temperature can be set for the desired location by
setting a temperature calibration value. However, it is effective within the input rated
range regardless of the temperature calibration value.
Temperature after calibration = Current temperature + (Temperature calibration value)(e.g.) When current temperature is 23.5 ,If temperature calibration value is set to 1.5 : 23.5 + (1.5) = 25.0
If temperature calibration value is set to -1.5 : 23.5 + (-1.5) = 22.0
The following outlines the procedure for temperature calibration.
1

2

Press and hold the
key andkey (in that order) together for 3 seconds
in pH/Temperature Display Mode, or Cleansing Output Mode.
The unit will proceed to Temperature Calibration mode, indicating the following:
Display
Indicated Contents
pH Display
Indicates
and temperature alternately.
Temperature Display
Temperature calibration value

Set a temperature calibration value with theor
key while checking
temperature.
Setting range: -10.0 to 10.0
3 Press thekey.
Temperature calibration is complete, and the unit reverts to pH/Temperature
Display Mode, or Cleansing Output Mode.
46

8.3 Transmission Output 1 Adjustment Mode
Fine adjustment of Transmission output 1 is performed.
This PH meter is adjusted at the factory, however, differences may occur between theindication value of the connected equipment (recorders, etc.) and output value of thisunit.
In this case, perform Transmission output 1 Zero and Span adjustments.
The unit cannot enter Transmission output 1 Zero adjustment mode in the following
cases:• During pH calibration or temperature calibration• When(Lock 1)，
( Lock 2) or(Lock 3) is selected in[Set value lock (p.34)](Cleansing output) is selected in any of EVT1 to EVT4 types (pp. 25• Whento 27) using the ‘Cleansing time’ and ‘Restore time after cleansing’ settings.
The following outlines Transmission output 1 adjustment procedure.
1

Press and hold theandkey (in that order) together for approx. 3
seconds in pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters Transmission output 1 Zero adjustment mode, and indicates thefollowing:
Display
Indication Contents
pH Display
Temperature Display
Transmission output 1 Zero adjustment value

2

Set Transmission output 1 Zero adjustment value with the,keys, while
viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 span
3 Press thekey.
The unit enters Transmission output 1 Span adjustment mode, and indicates thefollowing:
Display
Indication Contents
pH Display
Temperature Display
Transmission output 1 Span adjustment value
4

Set Transmission output 1 Span adjustment value with the,keys, while
viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 1 span
5 Press thekey.
The unit reverts to the Transmission output 1 Zero adjustment mode.
Repeat steps 2 to 5 if necessary.
6 To finish the Transmission output 1 adjustment, press the
key in Transmission
output 1 Span adjustment mode.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

47

8.4 Transmission Output 2 Adjustment Mode
Fine adjustment of Transmission output 2 is performed.
This PH meter is adjusted at the factory, however, differences may occur between theindication value of the connected equipment (recorders, etc.) and output value of thisunit.
In this case, perform Transmission output 2 Zero and Span adjustments.
The unit cannot enter Transmission output 2 Zero adjustment mode in the following
cases:• During pH calibration or temperature calibration• When(Lock 1)，
( Lock 2) or(Lock 3) is selected in[Set value lock (p.34)](Cleansing output) is selected in any of EVT1 to EVT4 types (pp. 25• Whento 27) using the ‘Cleansing time’ and ‘Restore time after cleansing’ settings.
The following outlines Transmission output 2 adjustment procedure.
1

Press and hold theandkey (in that order) together for approx. 3
seconds in pH/Temperature Display Mode, or Cleansing Output Mode.
The unit enters Transmission output 2 Zero adjustment mode, and indicates thefollowing:
Display
Indication Contents
pH Display
Temperature Display
Transmission output 2 Zero adjustment value

2

Set Transmission output 2 Zero adjustment value with the,keys, while
viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 2 span
3 Press thekey.
The unit enters Transmission output 2 Span adjustment mode, and indicates thefollowing:
Display
Indication Contents
pH Display
Temperature Display
Transmission output 2 Span adjustment value
4

Set Transmission output 2 Span adjustment value with the,keys, while
viewing the value indicated on the connected equipment (recorders, etc.).
Setting range: 5.00% of Transmission output 2 span
5 Press thekey.
The unit reverts to the Transmission output 2 Zero adjustment mode.
Repeat steps 2 to 5 if necessary.
6 To finish the Transmission output 2 adjustment, press the
key in Transmission
output 2 Span adjustment mode.
The unit reverts to pH/Temperature Display Mode, or Cleansing Output Mode.

48

9. Measurement
9.1 Starting Measurement
After mounting to the control panel, and wiring, setup and calibration are complete,turn the power to the instrument ON. For approx. 4 seconds after the power isswitched ON, the following characters are indicated on the pH Display andTemperature Display.
Depending on the input specification, indication on the Temperature Display differs
as follows:
Pt specpH
Display

Temperature
Display
Unlit

Item Selected in[Electrode RTD]
(p.24): No temperaturecompensation: Pt1000: Pt100

Cu specpH
Display

Temperature
Display
Unlit

Item Selected in[Pt100 input wire type](p.24): 2-wire type
: 3-wire type

Item selected in[Electrode RTD (p.24)]: No temperaturecompensation: Cu500

During this time, all outputs are in OFF status, and action indicators are turned off.
After that, measurement starts, indicating the item selected in [Backlight Selection(p. 37)].

49

9.2 EVT1 to EVT4 Outputs
If(pH input low limit action),(pH input high limit action),(Temperature input low limit action) or(Temperature input highlimit action) is selected in [EVT1 type (pp.25 to 27)], the following action is
activated.
The same applies to EVT2, EVT3 and EVT4.
• EVT1 Action
EVT1 TypeP Control Action
ON/OFF Control Action
EVT1 proportional band

If Medium Value is selected in [EVT1hysteresis type]:
EVT1 ON sides

ON
ON

pH input low limit
action,

OFF
EVT1
value

Temperature input
low limit action(Activated basedon indication
value)

OFF
EVT1 value
If Reference Value is selected in [EVT1hysteresis type]:
EVT1 ON side

EVT1 OFF sideON
OFF
EVT1 proportional band

EVT1 value
If Medium Value is selected in [EVT1hysteresis type]:
EVT1 ON sides

ON

pH input high limit
action,Temperature input
high limit action

ON
OFF
EVT1
value

OFF
EVT1 value
If Reference Value is selected in [EVT1hysteresis type]:(Activated basedon indication
value)

EVT1 OFF side

EVT1 ON sideON
OFF

EVT1 value50

EVT1 TypepH input High/Low
limits independentaction,Temperature input
High/Low limits
independent

ON/OFF Control Action
EVT1 hysteresis

EVT1 hysteresis

ON
OFF
EVT1 High/Low limits EVT1 value
independent lower side band

EVT1 High/Low limits
independent upper side band

(Fig. 9.2-1)• P Control Action
Within the proportional band, the manipulated variable is output in proportion to
the deviation between the EVT1 value and measured value.
EVT1 Type
Description
If measured value is lower than [EVT1 value – EVT1
pH input low limit
proportional band], EVT1 output is turned ON.
action,If measured value enters within the proportional band, EVT1
Temperature input output is turned ON/OFF in EVT1 proportional cycles.
If measured value exceeds the EVT1 value, EVT1 output is
low limit action
turned OFF.
If measured value is higher than [EVT1 value + EVT1
pH input high limit
proportional band], EVT1 output is turned ON.
action,If measured value enters within the proportional band, EVT1
Temperature input output is turned ON/OFF in EVT1 proportional cycles.
If measured value drops below the EVT1 value, EVT1 output
high limit action
is turned OFF.

• ON/OFF Control Action
EVT1 Type
Description
pH input low limit
If measured value is lower than EVT1 value, EVT1 output isaction,turned ON.
Temperature input If measured value exceeds the EVT1 value, EVT1 output is
low limit action
turned OFF.
pH input high limit
If measured value is higher than EVT1 value, EVT1 output isaction,turned ON.
Temperature input If measured value drops below the EVT1 value, EVT1 output
high limit action
is turned OFF.
If ON and OFF time are set in [Output ON/OFF Time when EVT1 Output ON (pp.29, 30)],
and when EVT1 output is turned ON, EVT1 output is turned ON/OFF in a configured
cycle.

51

Timing chart (Output ON time and OFF time when EVT1 output is ON)
ON
Actual EVT1 output
OFF
EVT1 output to ON
which ON timeand OFF time OFF
are set.

ON time is turned
OFF, caused by theactual EVT1 output
turning OFF.
ON
time

OFF
time

ON
time

OFF
time

ON
time

(Fig. 9.2-2)
EVT output status can be read by reading Status flag 2 (EVT1, EVT2, EVT3, EVT4
output flag bit) in Serial communication (C5 option).
EVT output status, when input errors occur, differs depending on the selection in[EVT output when input errors occur (p.39)].
(Disabled) is selected, EVT output is turned OFF when input errors occur.
• If
• If
(Enabled) is selected, EVT output is maintained when input errors occur.
9.3 Error Output
If(Error output) is selected in [EVT1 type (pp.25 to 27], and when the error
type is “Error” in (Table 8.1.3-1, pp.45, 46), the EVT1 output is turned ON.
The same applies to EVT2, EVT3 and EVT4.
9.4 Fail Output
If(Fail output) is selected in [EVT1 type (pp.25 to 27)], and when the error
type is “Fail” in (Table 8.1.3-1, pp.45, 46), the EVT1 output is turned ON.
The same applies to EVT2, EVT3 and EVT4.
9.5 Cleansing Output
If(Cleansing output) is selected in any of [EVT1 to EVT4 types (pp. 25 to27)], the unit will enter Cleansing Output Mode.
An EVT output (for which Cleansing output is selected) will turn ON during theconfigured cleansing time.
When the cleansing interval finishes after restore time has passed, this is counted as
one cleansing cycle, and the configured number of cleansing cycles will be repeated.
While cleansing is being performed, other outputs are in OFF status.
Measured values (pH, temperature) are constantly updated.
Programmed action will be performed, except during cleansing action.
When power is turned ON again, the unit starts from the 1st cleansing cycle.
After the configured number of cleansing cycles is finished, the EVT output (for which
the cleansing output is selected) is turned OFF, and other outputs perform theirprogrammed operations, however, they are in Cleansing Output Mode.

52

• Cleansing Output Action

Programmed
actionCleansing

Programmed Cleansing
actionCno: Number of cleansing cycles
Cint: Cleansing interval
Ctm: Cleansing time
Rtm: Restore time after cleansing

Programmed
actionCleansing(Fig. 9.5-1)• If another(Cleansing output) is selected in any other [EVT type] during
cleansing action, the same as the current settings will be used for the cleansing
output.
• If(No temperature compensation) is selected in [Electrode RTD (p.24)],the value set in [Reference temperature] is maintained during cleansing action.
If an error occurs [when temperature measured value is outside the measurement
range (e.g.) less than 0.0 or exceeding 110.0 ], the following will be displayed:
pH Display
pH measured value
pH measured value

Temperature Display
Less than 0.0 :Exceeding 110.0 :• During calibration mode or Transmission output 1 or 2 adjustment, if cleansing action
initiates after restore time has passed, the cleansing action will not be performed in thecurrent session.
• If the number of cleansing cycles is changed in [Number of cleansing cycles] during
cleansing action, the new number will be enabled from the next cleansing cycle.
If any output other than
(Cleansing output) is selected in [EVT1 to EVT4
types (pp.25 to 27)], the unit will revert to pH/Temperature Display Mode.
9.6 Manual Cleansing Mode
By pressing theandkeys simultaneously for 3 seconds, the unit enters
Manual cleansing mode.
In Manual cleansing mode, cleansing action is performed using ‘Cleansing time’ and‘Restore time after cleansing’.
After manual cleansing action is finished, the unit automatically returns to the
Cleansing Output Mode.
If Manual cleansing action initiates during programmed cleansing action, the unit will
not enter Manual cleansing mode.
During Manual cleansing mode, if programmed cleansing action initiates after restore
time has passed, the programmed cleansing action will not be performed in the current
session. Manual cleansing action is also counted as one cleansing cycle.
53

Manual Cleansing Mode Action

Key operation

Programmed Cleansing Programmed Cleansing Programmed Cleansing
actionactionactionDuring cleansing action, Manual cleansing
mode via key operation is invalidated –Programmed cleansing mode takes priority.

During Manual cleansing mode, theprogrammed cleansing action will be
invalidated.
Cleansing action by Manual cleansing
mode is counted as one cleansing
cycles.

Cno: Number of cleansing cycles
Cint: Cleansing interval
Ctm: Cleansing time
Rtm: Restore time after cleansing(Fig. 9.6-1)
9.7 pH Input Error Alarm
pH input error alarm is used for detecting actuator trouble.
Even if pH input error alarm time has elapsed, and if pH input does not become higher
than pH input error alarm band, the unit assumes that actuator trouble has occurred,and sets Status flag 2 (EVT1, EVT2, EVT3, EVT4 output flag bit).
In Serial communication, status can be read by reading Status flag 2 (EVT1, EVT2,
EVT3, EVT4 output flag bit).
If(pH input error alarm output) is selected in [EVT1 type (pp.25 to 27)],
EVT1 output is turned ON.
The same applies to EVT2, EVT3 and EVT4.
pH input error alarm is disabled in the following cases:• During pH calibration• When(Cleansing output) is selected in any of EVT1 to EVT4 types (p.25
to 27), and cleansing action is performing using the ‘Cleansing time’ and ‘Restore
time after cleansing’ settings.
• When pH input error alarm time is set to 0 seconds (or minutes) or pH input error
alarm band is set to pH 0.0.

54

9.8 Cycle Automatic Variable Function
If deviation between EVT value and measured value enters EVT cycle variable
range, the proportional cycle will be automatically extended in accordance with thedeviation.
Proportional action OFF time will be extended, and ON / OFF ratio will be adjusted.
However, if EVT cycle extended time is set to 0 (zero), this function will be disabled.
Control direction
Large

Deviation

Time(Seconds)

Small

EVTx proportional band
Cycle fixed range

EVTx cycle variable range
Cycle delay time (Ctf1, Ctf2)
Proportional cycle ofusual P control action

EVTx cycle
extended time

OFF time
OFF time
EVTx
proportional cycle

ON timeON time?

0 sec.

EVTx value

Usual P control action
EVTx output
ON
OFF
C

C

C

C

C

C

Cycle is constantly fixed.

Action when EVTx cycle variable range is set.
EVTx cycle variable range

Usual P control action

EVTx output
ON
OFF
C

C

C

ON

OFF

Ctf1
C: EVTx proportional cycle
tf1, tf2: Extended OFF timeCtf1, Ctf2: Cycle delay time

(Fig. 9.8-1)

55

tf1 ON

OFF

Ctf2

tf2

9.9 Error Code during Measurement
For temperature sensor error or outside temperature compensation range during
measurement, their corresponding error codes flash on the Temperature Display as
shown below in (Table 9.9-1).
(Table 9.9-1)
Error Code Error Type
Error Contents
Description
Fail
Temperature Sensor Temperature sensor lead wire is
Burnout
burnt out.
Fail
Temperature Sensor Temperature sensor lead wire is
Short-circuited
short-circuited.
Error
Outside Temperature Measured temperature has
Compensation Range exceeded 110.0 .
Error
Outside temperature Measured temperature is less thanCompensation Range 0.0 .
9.10 Setting EVT1 to EVT4 Values
EVT1 to EVT4 values can be set in Simple Setting mode.
These setting items are the same as those in EVT1 to EVT4 Action groups.
To enter Simple Setting mode, follow the procedure below.
1
Press thekey in pH/Temperature Display Mode, or Cleansing
Output Mode. ‘EVT1 value’ will appear.
2 Set each item with theorkey, and register the value with the
key.
Character

Setting Item, Function, Setting Range
EVT1 value

Factory Default
pH input: pH 0.00
Temperature input: 0.0• Sets EVT1 value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type (pp.25 to 27)].
• Not available if Transmission output 2 (TA2 option) is ordered.
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)
EVT2 value
pH input: pH 0.00
Temperature input: 0.0• Sets EVT2 value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type (pp.25 to 27)].
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.

56

Character

Setting Item, Function, Setting Range
EVT3 value

Factory Default
pH input: pH 0.00
Temperature input: 0.0• Sets EVT3 value.
• Not available if(No action),(Error output),(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type (pp.25 to 27)].
• Available only when EVT3, EVT4 outputs (EVT3 option) are/is
ordered.
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)
EVT4 value
pH input: pH 0.00
Temperature input: 0.0• Sets EVT4 value.
(No action),(Error output),• Not available if(Fail output),(Cleansing output) or(pH input error alarm output) is selected in [EVT1 type (pp.25 to 27)].
• Available only when EVT3, EVT4 outputs (EVT3 option) are/is
ordered.
• Setting range:
pH input: pH 0.00 to 14.00 (*)
Temperature input: 0.0 to 100.0 (*)(*) The placement of the decimal point does not follow the selection. It is fixed.
3

Press thekey. The unit reverts to pH/Temperature Display Mode, or Cleansing
Output Mode.

9.11 Transmission Output 1 and 2
Converting pH, temperature or MV to analog signal every input sampling period,
outputs in current.
If(No temperature compensation) is selected in [Electrode RTD (p.24)],
and(Temperature transmission) is selected in [Transmission output 1 type(p.35)] or [Transmission output 2 type (p.36)], the value set in [Reference
temperature (p.23)] will be output.
If Transmission output 1 high limit and low limit are set to the same value,
Transmission output 1 will be fixed at 4 mA DC.
If Transmission output 2 high limit and low limit are set to the same value,
Transmission output 2 will be fixed at 4 mA DC.
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max 550 )Output accuracy
Within 0.3% of Transmission output 1 or 2 span
57

9.12 pH Fluctuation Alarm Output
pH fluctuation alarm output is used for detecting pH input fluctuation error.
Even if pH fluctuation alarm time has elapsed – if the change in pH input fluctuation issmaller than the pH fluctuation alarm band – the instrument assumes that a pH
fluctuation error has occurred, and sets Status flag 2 (EVT1, EVT2, EVT3, EVT4
output flag bit).
In Serial communication, status can be read by reading Status flag 2 (EVT1, EVT2,
EVT3, EVT4 output flag bit).
If(pH fluctuation alarm output) is selected in [EVT1 type (pp.25 to 27)], theselected EVT1 output will be turned ON.
The same applies to EVT2, EVT3 and EVT4.
This function will be disabled if pH fluctuation alarm time is set to 0 (zero) hours, or if
pH fluctuation alarm band is set to pH 0.00.

58

10. Specifications
10.1 Standard Specifications
RatingRated Scale

Input

Power Supply
Voltage

General Structure
External Dimensions
Mounting
Case
Front Panel
Drip-proof/Dust-proof
Indication Structure

Setting Structure

Input
Input Range
Resolution
pH Combined ElectrodepH 0.00 to 14.00 pH 0.01
0.0 to 100.0
0.1
Pt1000Pt spec
Pt100
0.0 to 100.0
0.1
Cu spec
Cu500/25
0.0 to 100.0
0.1
pH Combined Electrode Sensor (pH sensor: JIS Z8802,
Temperature element: Pt1000 or Pt100)
pH Combined Electrode Sensor (pH sensor: JIS Z8802,
Temperature element: Cu500/25 )Model
AER-102-PH
AER-102- PH 1
Power supply
100 to 240 V AC
24 V AC/DC
voltage50/60 Hz50/60 Hz
Allowable voltage
85 to 264 V AC
20 to 28 V AC/DC
fluctuation range

48 x 96 x 98.5 mm (W x H x D)
Flush (Applicable panel thickness: 1 to 8 mm)
Material: Flame-resistant resin, Color: Black
Membrane sheet
IP66 (for front panel only)
Display
pH Display 11-segment LCD display 5-digits
Backlight: Red/Green/Orange
Character size: 14.0 x 5.4 mm (H x W)
Temperature 11-segment LCD display 5-digits
Display
Backlight: Green
Character size: 10.0 x 4.6 mm (H x W)
Output22-segment LCD display Bar graph
Display
Backlight: Green
Action indicator: Backlight: Orange color
EVT1
When EVT1 output (Contact output 1) ON: Lit
EVT2
When EVT2 output (Contact output 2) ON: Lit
EVT3
When EVT3 output (Contact output 3) ON: Lit
EVT4
When EVT4 output (Contact output 4) ON: Lit
T/RWhen Serial communication TX output(transmitting): Lit
LOCKWhen Lock 1, 2 or 3 is selected: Lit
Input system using membrane sheet key
59

Indication Performance
Repeatability
pH: pH 0.05
Linearity
pH: pH 0.05
Indication Accuracy
Temperature: 1
Input Sampling Period 125 ms (2 inputs)
Time Accuracy
Within 1% of setting timeStandard Functions
pH Calibration

Temperature
Calibration

Transmission Output
1

Transmission
Output 1
Adjustment
Transmission
Output 1 Statuswhen Calibrating

For pH measurement using the glass electrode method, pH
in the sensor location, electrode performance and standard
solution accuracy respectively play an important role forobtaining reliable data.
Input value is shifted via 2-points calibration using thestandard solutions.
However, it is effective within the input rated range
regardless of the calibration value.
There are 2 calibration methods: Automatic Calibration,
Manual Calibration
When a sensor cannot be set at the exact location where
measurement is desired, the resulting measured
temperature may deviate from the temperature in thedesired location. In this case, the desired temperature can be
set for the desired location by setting a temperature calibration
value. However, it is effective within the input rated range
regardless of the temperature calibration value.
Converting pH, temperature or MV to analog signal every
input sampling periods, outputs the value in current.
(No temperature compensation) is selected in
If[Electrode RTD (p.24)], and if(Temperaturetransmission) is selected in [Transmission output 1 type(p.35)], the value set in [Reference temperature (p.24)] will
be output.
If Transmission output 1 high limit and low limit are set to thesame value, Transmission output 1 will be fixed at 4 mA DC.
Resolution 12000
Output4 to 20 mA DC (Load resistance: Max 550 )OutputWithin 0.3% of Transmission output 1 span
accuracy
Fine adjustment of Transmission output 1 is performedby performing Transmission output 1 Zero and Spanadjustments.
Selects Transmission output 1 status when calibrating pH.
Last value HOLD: Retains the last value before pH
calibration, and outputs it.
Set value HOLD: Outputs the value set in [Transmission
output 1 value HOLD when calibrating].
Measured value: Outputs the measured value whencalibrating pH.

60

EVT Output
Output Action

P control: When setting proportional band to any value
other than 0.00 or 0.0.
ON/OFF control: When setting proportional band to 0.00 or
0.0.
pH input
pH 0.00 to 14.00 (*)
EVT
proportional band
Temperature input 0.0 to 100.0 (*)
EVT proportional cycle
1 to 300 seconds
EVT ON side,
pH input
pH 0.00 to 4.00 (*)
OFF side
Temperature input 0.0 to 10.0 (*)
EVT output high limit, low limit
0 to 100%
EVT H/L limits
pH input
pH 0.00 to 14.00 (*)
independent upper, Temperature input 0.0 to 100.0 (*)
lower side bands
EVT hysteresis
pH input
pH 0.01 to 4.00 (*)
Temperature input 0.1 to 10.0 (*)(*) The placement of the decimal point does not follow the selection.
It is fixed.

Type

OutputEVT ON DelayTime
EVT OFF
Delay Time
Output ON Time/OFF Time when
EVT Output
ON

Selectable by the keypad from the following.
• No action• pH input low limit action• pH input high limit action• Temperature input low limit action• Temperature input high limit action• Error output• Fail output• Cleansing output• pH input error alarm• pH fluctuation alarm output• pH input High/Low limits independent action• Temperature input High/Low limits independent action
Relay contact 1aControl
3 A 250 V AC resistive load)
capacity
1 A 250 V AC (inductive load, cos =0.4)
Electrical life
100,000 cycles
0 to 10000 seconds
0 to 10000 seconds
If ON time and OFF time are set, the output can be turned
ON/OFF in a configured cycle when EVT output is ON.

61

Cleansing Output

pH Input Error
Alarm

Cleansing output mode
If
(Cleansing output) is selected in any of[EVT1 to EVT4 types (pp. 25 to 27)], the unit will enter
Cleansing Output Mode.
An EVT output (for which Cleansing output is selected) willturn ON during the configured cleansing time.
When the cleansing interval finishes after restore time has
passed, this is counted as one cleansing cycle, and theconfigured number of cleansing cycles will be repeated.
While cleansing is being performed, other outputs are in
OFF status.
Measured values (pH, temperature) are retained.
Programmed action will be performed, except during
cleansing action.
When power is turned ON again, starts from the 1st
cleansing action again.
After the configured number of cleansing cycles is finished,
the EVT output (for which the cleansing output is selected)
is turned OFF, and other outputs perform their programmed
operations, however, they are in Cleansing Output Mode.
Manual cleansing mode
By pressing theandkeys simultaneously for 3
seconds, the unit enters Manual cleansing mode.
In Manual cleansing mode, cleansing action is performed
using ‘Cleansing time’ and ‘Restore time after cleansing’.
After manual cleansing action is finished, the unit
automatically returns to the Cleansing Output Mode.
During cleansing action, Manual cleansing mode via key
operation is invalidated, and the unit cannot enter Manual
cleansing mode.
During Manual cleansing mode, if programmed cleansing
action initiates after restore time has passed, theprogrammed cleansing action will not be performed in thecurrent session.
Detects actuator trouble.
Even if pH input error alarm time has elapsed, and if pH
input does not become higher than pH input error alarm
band, the unit assumes that actuator trouble has occurred,and sets Status flag 2 (EVT1, EVT2, EVT3, EVT4 output
flag bit).
In Serial communication, status can be read by reading
Status flag 2 (EVT1, EVT2, EVT3, EVT4 output flag bit).
If(pH input error alarm output) is selected in[EVT1 type (pp.25 to 27)], EVT1 output is turned ON.
The same applies to EVT2, EVT3 and EVT4.
pH input error alarm is disabled in the following cases:• During pH calibration• When(Cleansing output) is selected in any of
EVT1 to EVT4 types (pp.25 to 27), and when cleansing
action is performed using the ‘Cleansing time’ and‘Restore time after cleansing’.
• When pH input error alarm time is set to 0 seconds (orminutes) or pH input error alarm band is set to pH 0.0.
62

If deviation between EVT
value and measured value
enters EVT cycle variable range, the proportional cycle will
be automatically extended in accordance with the deviation.
Proportional action OFF time will be extended, and ON/
OFF ratio will be adjusted.
However, if EVT cycle extended time is set to 0 (zero)seconds, this function will be disabled.

Insulation, Dielectric Strength
Circuit Insulation
Configuration

Power supply
EVT1 output
EVT2 output
EVT3 output
EVT4 output

Electrically insulated

Cycle Automatic
Variable Function

Serial communication
Transmission output 1
Transmission output 2
Input

GND

Insulation resistance: 10 M
Dielectric Strength

or more, at 500 V DC

Power terminal - ground (GND): 1.5 kV AC for 1 minute
Input terminal - ground (GND): 1.5 kV AC for 1 minute
Input terminal - power terminal: 1.5 kV AC for 1 minuteAttached Functions
Set Value Lock

Lock 1: None of the set values can be changed.
Lock 2: Only EVT1, EVT2, EVT3 and EVT4 values can bechanged.
Lock 3: All set values – except Electrode RTD, Temperature
calibration value, pH calibration value, pH calibration
Auto/Manual, Transmission output 1 Zero and Spanadjustment values, Transmission output 2 Zero and Spanadjustment values – can be temporarily changed.
However, they revert to their previous value after the
power is turned off because they are not saved in the
non-volatile IC memory.
pH Input Sensor
This corrects the input value from the pH Combined Electrode
Correction
Sensor. When sensor-measured pH may deviate from the pH
in the measured location, desired pH can be obtained byadding a sensor correction value.
However, it is effective within the measurement range
regardless of the sensor correction value.
Temperature Display
If(No temperature compensation) is selected inwhen No Temperature [Electrode RTD (p.24)], the item to be indicated on theCompensation
Temperature Display can be selected.
Cable LengthIf(2-wire type) is selected in [Pt100 input wire
Correction
type (p.24)], and if sensor cable is too long, temperature
measurement error will occur due to cable resistance. Thiscan be corrected by setting the cable length correction value
and cable cross-section area.
63

Outside Measurement When pH measured value or temperature measured value isoutside the measurement range, the following will be indicated.
Range
However, when pH measured value is outside themeasurement range, and if the unit proceeds to pH
Calibration mode, the pH Display will be unlit, and theTemperature Display will flash.
When temperature errors occur, and if the unit proceeds to
pH Manual Calibration mode, the pH Display will be unlit,
and the Temperature Display will flash an error code.
pH measured value is outside the measurement range:
If the value is less than pH 0.00, or exceeds pH 14.00, thefollowing will be indicated.
(No temperature compensation) is• Whenselected in [Electrode RTD (p.24)]:
pH Display
Temperature Display
Less than pH 0.00: 0.00
is flashing.
Exceeding pH 14.00: 14.00
is flashing.
• Pt spec: When
(Pt1000) or(Pt100)is selected in [Electrode RTD (p.24)]• Cu spec: When
(Cu500) is selected in[Electrode RTD (p.24)]:
pH Display
Temperature Display
Less than pH 0.00:
Temperature measured value
0.00 is flashing.
Exceeding pH 14.00:
Temperature measured value
14.00 is flashing.
• When temperature measured value is outside themeasurement range (less than 0.0 or exceeding
110.0 ), the following will be indicated:
pH Display
Temperature Display
pH measured valueLess than 0.0 :Power Failure
CountermeasureSelf-diagnosis

Bar Graph Indication

pH measured value
Exceeding 110.0 :The setting data is backed up in the non-volatile IC memory.
The CPU is monitored by a watchdog timer, and if anabnormal status occurs, the AER-102-PH is switched towarm-up status.
When(Transmission output 1) or(Transmission output 2) is selected in [Bar graph indication(p.39], segments light in accordance with the output.
Scale is -5 to 105%. Segments light from left to the right inaccordance with the output.
(e.g.) When the output is 50%

-5%

50%

105%

Light from left to right in accordance with the output.
64Warm-up Indication

Pt specpH
Display

For approx. 4 seconds after the power is switched ON, thecharacters below are indicated on the pH Display andTemperature Display.
Indication on the Temperature Display differs dependingon the input specification as follows.

Temperature
Display

Unlit

Item selectedin [Electrode RTD (p.24)]: No temperaturecompensation: Pt1000: 2-wire type
: 3-wire type

: Pt100
Cu specpH
Display

Temperature

DisplayUnlit

pH Color Selection

Item selected in [Pt100
input wire type (p.24)]

Item selectedin [Electrode RTD (p.24)]: No temperature compensation: Cu500
Selects pH Display color.
Item selected in
pH Display Color[pH Color (p.38)]
Green
Red
OrangepH color changes continuously.
pH color changes continuously:
pH Display color changes according to [pH color reference
value (p.38)] and [pH color range (p.38)] settings.
• When pH is lower than [pH color reference value] – [pHcolor range]: Orange• When pH is within [pH color reference value][pHcolor range]: Green• When pH is higher than [pH color reference value] + [pHcolor range]: Red
Orange GreenRed: pH color reference value

Hys Hys

Zero Indication

Slope Indication

Hys : pH color range

Indicates potential difference when pH 7 is calibrated.
However, if Manual calibration is performed, zero
indication value calculated at previous automatic
calculation will not be updated.
If calibration is not successfully completed, zero indication
will show the value before calibration.
From the voltage equivalent to the calibrated pH, electromotive force for the change of pH 1 will be indicated.
If calibration is not successfully completed, slope
indication will show the value before calibration.
65

Error Code
Error
Code

Error codes below flash on the Temperature Display.
Error
Error
Description
Type
Contents
When calibrating, the response of theError Response
Speed Error pH Combined Electrode Sensor isslow.
When the difference between the
input and each of the 1st and 2nd
solutions are within pH 1.50, andinput fluctuation is over pH 0.05 (in10 seconds of assessment cycles)
for 5 minutes, this is assumed to be
an error.
However, if input fluctuation is lessthan or equal to pH 0.05, this is
assumed to be within the normal
range.
When calibrating, sensitivity of theError Electrode
pH Combined Electrode Sensor has
Sensitivity
deteriorated.
Error
The difference between 1st and 2nd
standard solution value after
calibration is less than or equal to pH
2.00.
Error Asymmetry When calibrating pH 7, the differencein electromotive force between the
Potential
sensor-measured value and standard
Errorvalue exceeds the equivalent of pH
1.50.
Standard
The
specified standard solution has
Error
Solutionnot been used.
Error
When pH 1.50 is exceeded for the
1st and 2nd solutions.
When temperature is 55 or more at
Error Solution
temp. Error pH 10 solution.
Temp. Sensor Temperature sensor lead wire is
FailBurnout
burnt out.
Temp. Sensor Temperature sensor lead wire is
FailShort-circuited short-circuited.
OutsideTemp. Measured temperature has exceeded
Error
Compen.Range 110.0 .
Error Outside Temp. Measured temperature is less thanCompen.Range 0.0 .

OccurrenceWhencalibratingWhenmeasuring or
calibrating(Abbreviations: Temp.: Temperature, Compen.: Compensation)

Other
Power Consumption
Ambient Temperature
Ambient Humidity
WeightAccessories
Included

Accessories Sold
Separately

Approx. 12 VA
0 to 50 (32 to 122 )35 to 85 %RH (Non-condensing)
Approx. 280 g
Unit label: 1 sheet, Mounting brackets: 1 set
Instruction manual: 1 copy
When Serial communication (C5 option) is ordered:Wire harness C5J (0.2 m): 1 length
Wire harness C0J (3 m): 1 length
When EVT3, EVT4 outputs (Contact output 3, 4) (EVT3 option)
are/is ordered: Wire harness HBJ (3 m): 2 lengths
Terminal cover66

10.2 Optional Specifications
Serial Communication (Option code: C5)
Serial Communication

Cable Length

CommunicationLine
Communication
MethodCommunication
Speed
Synchronization
MethodCode Form
Communication
ProtocolData Bit/Parity
Stop Bit
Error Correction
Error Detection

Data Format

The following operations can be carried out from anexternal computer.
(1) Reading and setting of various set values(2) Reading of the pH, temperature and status(3) Function change, adjustment(4) Reading and setting of user save area
1.2 km (Max), Cable resistance: Within 50(Terminators
are not necessary, but if used, use 120
minimum on bothsides.)EIA RS-485
Half-duplex communication
9600, 19200, 38400 bps (Selectable by keypad)
Start-stop synchronization
ASCII, Binary
Shinko protocol, MODBUS ASCII, MODBUS RTU(Selectable by keypad)
8 bits/No parity, 7 bits/No parity, 8 bits/Even, 7 bits/Even,
8 bits/Odd, 7 bits/Odd (Selectable by keypad)
1 bit, 2 bits (Selectable by keypad)
Command request repeat system
Parity check, Checksum (Shinko protocol),LRC (MODBUS protocol ASCII),
CRC-16 (MODBUS protocol RTU)
Communication
ShinkoMODBUSMODBUS
ProtocolProtocol
ASCII
RTU
Start bit
1
1
1
7 (8)
Data bit
78
Selectable
Even (NoNo parity
ParityEvenparity, Odd)
(Even, Odd)
Selectable
Selectable
1 (2)
1 (2)
Stop bit1
Selectable
Selectable

EVT3, EVT4 Outputs (Contact output 3, 4) (Option code: EVT3)
EVT3, EVT4 Outputs(Contact output 3, 4)Same as EVT output (pp.61 to 63)

67Transmission Output 2 (Option Code: TA2)
Converting pH, temperature or MV to analog signal every
Transmission Output
input sampling period, and outputs the value in current.
2
If(No temperature compensation) is selected in[Electrode RTD (p.24)], and if(Temperaturetransmission) is selected in [Transmission output 2 type(p.36)], the value set in [Reference temperature (p.24)] will
be output.
If Transmission output 2 high limit and low limit are set tothe same value, Transmission output 2 will be fixed at 4 mA
DC.
Resolution
12000
4 to 20 mA DC
Current(Load resistance: Max 550 )Within 0.3% of Transmission output
Output accuracy
2 SpanTransmission
Fine adjustment of Transmission output 2 can be performed
Output 2
via Transmission output 2 Zero adjustment and Span
Adjustment
adjustment.
Transmission
Transmission output 2 status can be selected when
Output 2 Status
calibrating pH.
when Calibrating
Last value HOLD: Retains the last value before pH
calibration, and outputs it.
Set value HOLD: Outputs the value set in [Transmission
output 2 value HOLD when calibrating].
Measured value: Outputs the measured value whencalibrating pH.

11. Troubleshooting
If any malfunction occurs, refer to the following items after checking that power is being
supplied to the AER-102-PH.
11.1 Indication
ProblemPossible Cause
Solution
The pH/
If any key is pressed while
The time set in [Backlight time
Temperature
displays are unlit, it will re-light.
(p.38)] has passed.
Displays are
Set the backlight time to aunlit.
suitable time-frame.
Indication of the pH calibration and temperature Perform pH calibration and
pH/Temperature calibration may not have finished. temperature calibration.
Display is
Electrode RTD selection might Select a correct electrode RTD.
unstable or
not be correct.
irregular.
Specification of pH Combined
Replace the sensor with aElectrode Sensor may notsuitable one.
be suitable.
There may be equipment that Keep AER-102-PH clear of any
interferes with or makes noise potentially disruptive equipment.
near the AER-102-PH.
Try [Grounding of shield wire
terminal (E) (P.70)].
68

ProblemThe
Temperature
Display is unlit.
[] isflashing on theTemperature
Display.

[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on theTemperature
Display.
[] isflashing on the
pH Display.

Possible Cause(Unlit) is selected in[Temperature Display when notemperature compensation(p.39)].
This shows that the responseof the pH Combined ElectrodeSensor is slow whencalibrating.

Solution
Select(Reference
temperature).

Rinse the pH Combined
Electrode Sensor.
If [] is still flashing,check if the standard solution
and pH Combined ElectrodeSensor are normal.
If they are not normal, replace thesolution or the sensor.
When calibrating, this occurs
Rinse the pH Combined
when the pH Combined
Electrode Sensor, and refill theElectrode Sensor hasinternal solution.
deteriorated.
If [] is still flashing,replace the sensor.
When calibrating, this occurs
Rinse the pH Combined
when electromotive force
Electrode Sensor, and refill the(asymmetry potential) of pH 7 is internal solution.
large.
If [] is still flashing,replace the sensor.
When calibrating, this will
Rinse the pH Combined
occur if the specified standard
Electrode Sensor, and refill thesolution is not used.
internal solution.
If [] is still flashing, use
the specified standard solution.
When calibrating, this will occur Check the liquid temperature of
if temperature of pH 10 is 55
pH 10.
or more.
This occurs when the
Replace the pH Combined
temperature sensor lead wire is Electrode Sensor.
burnt out.
Replace the pH Combined
This occurs when thetemperature sensor lead wire is Electrode Sensor.
short-circuited.
This occurs when measured
temperature value exceeds
110.0 .

Check the measuring
environment.

This occurs when measured
temperature value is lessthan 0.0 .

Check the measuring
environment.

Internal memory is defective.

Contact our agency or us.

69

11.2 Key Operation
Problem• Unable to set
values.
• The values do
not change by,
keys.
Unable to enter
Manualcleansingmode.

Possible Cause(Lock 1) or(Lock 2) is selected in [Setvalue lock (p.34)].
(When Lock 1 or Lock 2 isselected, the LOCK indicator islit.)(Cleansing output) is
not selected in any of [EVT1 to
EVT4 types (pp. 25 to 27)].

SelectSolution(Unlock).

Select(Cleansing
output) in any of [EVT1 to
EVT4 types (pp. 25 to 27)].

Cleansing action is performing Execute Manual cleansing after
Cleansing action is completed.
using the ‘Cleansing time’ and‘Restore time after cleansing’
settings.
(Lock 1),
SelectUnable to enter(Unlock).
(Lock 2) or(Lock 3)a calibration
has been selected in [Set value
mode
lock (p.34)].
(pH Calibration(The LOCK indicator is lit whenmode orLock 1, Lock 2 or Lock 3 isTemperature
selected.)
Calibration
Perform calibration after(Cleansing output)mode).
cleansing action is completed.
has been selected in any of[EVT1 to EVT4 types (pp. 25
to 27)], and cleansing
action is performing using the‘Cleansing Time’ and ‘Restore
Time after Cleansing’ settings.
・Grounding of shield wire terminal (E)If the indication fluctuates due to noise, ground theshield wire terminal (E).
However, depending on the installation environment,
the symptom may not be improved.
In this case, disconnect the grounding of the shieldwire terminal (E) and return it to the original state.
(Depending on the type of sensor, the cable forthe shield wire terminal (E) may not be available.)70

Shielding braid

pH Combined
Electrode Sensor

12. Character Tables
The following shows our character tables. Use data column for your reference.
12.1 Setting Group List
Character

Setting GrouppH input group
Temperature input group
EVT1 action group
EVT2 action group
EVT3 action group
EVT4 action group
Basic function group
Zero/Slope indication group

Reference Section
12.7 (p.72)
12.8 (p.73)
12.9 (pp.73 to 75)
12.10 (pp.76 to 78)
12.11 (pp.78 to 80)
12.12 (pp.80 to 82)
12.13 (pp.83 to 86)
12.14 (p.86)

12.2 Temperature Calibration Mode
Character(*)(*)

Setting Item, Setting Range
Temperature calibration value
Setting range: -10.0 to 10.0

Factory Default

Data

Factory Default
0.00

Data

Setting Item, Setting Range
Factory Default
Transmission output 1 Zero
0.00%
adjustment value
Setting range: 5.00% of Transmission output 1 span
Transmission output 1 Span
0.00%
adjustment value
Setting range: 5.00% of Transmission output 1 span

Data

0.0

and temperature are displayed alternately.

12.3 pH Calibration Mode (for Manual calibration)
Character(*)(*)

Setting Item, Setting Range
pH calibration value
Setting range: -7.00 to 7.00

and pH are displayed alternately.

12.4 Transmission Output 1 Adjustment Mode
Character12.5 Transmission Output 2 Adjustment Mode
Character

Setting Item, Setting Range
Factory Default
Transmission output 2 Zero
0.00%
adjustment value
Setting range: 5.00% of Transmission output 2 span
Transmission output 2 Span
0.00%
adjustment value
Setting range: 5.00% of Transmission output 2 span
71

Data

12.6 Simple Setting Mode
Character

Setting Item, Setting Range
EVT1 value
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT2 value
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT3 value
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT4 value

Factory Default
pH input: pH 0.00
Temperature input: 0.0

Data

pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
12.7 pH Input Group
Character

Setting Item, Setting Range
Factory Default
pH 7 calibration standard
JIS
: JIS
: US standard
2nd solution
pH 4: pH 2: pH 4: pH 9: pH 10
pH calibration Auto/Manual
Automatic: Automatic: Manual
Decimal point place
2 digits after decimal point: No decimal point: 1 digit after decimal point: 2 digits after decimal point
pH input filter time constant
0.0 seconds
Setting range: 0.0 to 60.0 seconds
pH input sensor correction
0.00
Setting range: -1.40 to 1.40
pH inputs for moving average
20
Setting range: 1 to 120

72

Data

12.8 Temperature Input Group
Character

Setting Item, Setting Range
Electrode RTD

Factory Default
Pt spec: Pt1000
Cu spec: Cu500

Data

Pt spec: No temperature compensation: Pt1000: Pt100
Cu spec: No temperature compensation: Cu500
Reference temperature
25.0
Setting range: 5.0 to 95.0
Decimal point place
1 digit after decimal point: No decimal point: 1 digit after decimal point
Pt100 input wire type
3 -wire type
: 2-wire type
: 3-wire type
Cable length correction
0.0 m
Setting range: 0.0 to 100.0 m
Cable cross-section area
0.30 mm2
Setting range: 0.10 to 2.00 mm2Temperature inputs for moving
20
average
Setting range: 1 to 120
12.9 EVT1 Action Group
Character

Setting Item, Setting Range
Factory Default
EVT1 type
No action: No action: pH input low limit action: pH input high limit action: Temperature input low limit action: Temperature input high limit action: Error output: Fail output: Cleansing output: pH input error alarm output: pH fluctuation alarm output: pH input High/Low limits independent action: Temperature input High/Low limits independentaction73

Data

Character

Setting Item, Setting Range
EVT1 value
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT1 proportional band
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT1 reset
pH input: pH 4.00
Temperature input: 10.0
EVT1 hysteresis type
: Medium Value: Reference Value
EVT1 ON side
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT1 OFF side
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT1 ON delay time
Setting range: 0 to 10000 sec
EVT1 OFF delay time
Setting range: 0 to 10000 sec
EVT1 proportional cycle
Setting range: 1 to 300 sec

Factory Default
pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00
Temperature input: 0.0

Reference Value

pH input: pH 0.10
Temperature input: 1.0

pH input: pH 0.10
Temperature input: 1.0

0 sec.
0 sec.
30 sec.

EVT1 output high limit
100%
Setting range: EVT1 output low limit to 100%
EVT1 output low limit
0%
Setting range: 0% to EVT1 output high limit
Output ON time when EVT1 output ON
0 sec.
Setting range: 0 to 10000 sec
Output OFF time when EVT1 output ON

Setting range: 0 to 10000 sec

74

0 sec.

Data

Character

Setting Item, Setting Range
Factory Default
EVT1 pH input error alarm EVT type
No action: No action: EVT2 type
: EVT3 type
: EVT4 type
EVT1 pH input error alarm band
pH 0.00
when EVT output ON
Setting range: pH 0.00 to 14.00
EVT1 pH input error alarm time
0 sec.
when EVT output ON
Setting range: 0 to 10000 seconds or minutes
EVT1 pH input error alarm band
pH 0.00
when EVT output OFF
Setting range: pH 0.00 to 14.00
EVT1 pH input error alarm time
0 sec.
when EVT output OFF
Setting range: 0 to 10000 seconds or minutes
EVT1 cycle variable range
50.0%
Setting range: 1.0 to 100.0%
EVT1 cycle extended time
0 sec.
Setting range: 0 to 300 seconds
EVT1 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
EVT1 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
EVT1 High/Low limits
pH input: pH 0.00
independent lower side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT1 High/Low limits
pH input: pH 0.00
independent upper side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT1 hysteresis
pH input: pH 0.10
Temperature input: 1.0
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0

75

Data

12.10 EVT2 Action Group
Character

Setting Item, Setting Range
Factory Default
EVT2 type
No action: No action: pH input low limit action: pH input high limit action: Temperature input low limit action: Temperature input high limit action: Error output: Fail output: Cleansing output: pH input error alarm output: pH fluctuation alarm output: pH input High/Low limits independent action: Temperature input High/Low limits independentactionEVT2 value
pH input: pH 0.00
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT2 proportional band
pH input: pH 0.00
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT2 reset
pH input: pH 0.00
Temperature input: 0.0
pH input: pH 4.00
Temperature input: 10.0
EVT2 hysteresis type
Reference Value: Medium Value: Reference Value
EVT2 ON side
pH input: pH 0.10
Temperature input: 1.0
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT2 OFF side
pH input: pH 0.10
Temperature input: 1.0
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT2 ON delay time
0 sec.
Setting range: 0 to 10000 sec
EVT2 OFF delay time
0 sec.
Setting range: 0 to 10000 sec
EVT2 proportional cycle
30 sec.
Setting range: 1 to 300 sec
76

Data

Character

Setting Item, Setting Range
Factory Default
EVT2 output high limit
100%
Setting range: EVT2 output low limit to 100%
EVT2 output low limit
0%
Setting range: 0% to EVT2 output high limit
Output ON time when EVT2 output ON
0 sec.
Setting range: 0 to 10000 sec
Output OFF time when EVT2 output ON

0 sec.
Setting range: 0 to 10000 sec
EVT2 pH input error alarm EVT type
No action: EVT1 type
: No action: EVT3 type
: EVT4 type
EVT2 pH input error alarm band
pH 0.00
when EVT output ON
Setting range: pH 0.00 to 14.00
EVT2 pH input error alarm time
0 sec.
when EVT output ON
Setting range: 0 to 10000 seconds or minutes
EVT2 pH input error alarm band
pH 0.00
when EVT output OFF
Setting range: pH 0.00 to 14.00
EVT2 pH input error alarm time
0 sec.
when EVT output OFF
Setting range: 0 to 10000 seconds or minutes
EVT2 cycle variable range
50.0%
Setting range: 1.0 to 100.0%
EVT2 cycle extended time
0 sec.
Setting range: 0 to 300 seconds
EVT2 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
EVT2 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
EVT2 High/Low limits
pH input: pH 0.00
independent lower side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0

77

Data

Character

Setting Item, Setting Range
EVT2 High/Low limits
independent upper side band
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT2 hysteresis

Factory Default
pH input: pH 0.00
Temperature input: 0.0

Data

pH input: pH 0.10
Temperature input: 1.0

pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
12.11 EVT3 Action Group
Available only when EVT3, EVT4 outputs (EVT3 option) are/is ordered.
Character

Setting Item, Setting Range
Factory Default
EVT3 type
No action: No action: pH input low limit action: pH input high limit action: Temperature input low limit action: Temperature input high limit action: Error output: Fail output: Cleansing output: pH input error alarm output: pH fluctuation alarm output: pH input High/Low limits independent action: Temperature input High/Low limits independentactionEVT3 value
pH input: pH 0.00
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT3 proportional band
pH input: pH 0.00
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT3 reset
pH input: pH 0.00
Temperature input: 0.0
pH input: pH 4.00
Temperature input: 10.0
EVT3 hysteresis type
Reference Value: Medium Value: Reference Value

78

Data

Character

Setting Item, Setting Range
EVT3 ON side
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT3 OFF side

Factory Default
pH input: pH 0.10
Temperature input: 1.0

pH input: pH 0.10
Temperature input: 1.0

pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT3 ON delay time
0 sec.
Setting range: 0 to 10000 sec
EVT3 OFF delay time
0 sec.
Setting range: 0 to 10000 sec
EVT3 proportional cycle
30 sec.
Setting range: 1 to 300 sec
EVT3 output high limit
100%
Setting range: EVT3 output low limit to 100%
EVT3 output low limit
0%
Setting range: 0% to EVT3 output high limit
Output ON time when EVT3 output ON
0 sec.
Setting range: 0 to 10000 sec
Output OFF time when EVT3 output ON

0 sec.

Setting range: 0 to 10000 sec
EVT3 pH input error alarm EVT type
No action: EVT1 type
: EVT2 type
: No action: EVT4 type
EVT3 pH input error alarm band
pH 0.00
when EVT output ON
Setting range: pH 0.00 to 14.00
EVT3 pH input error alarm time
0 sec.
when EVT output ON
Setting range: 0 to 10000 seconds or minutes
EVT3 pH input error alarm band
pH 0.00
when EVT output OFF
Setting range: pH 0.00 to 14.00

79

Data

Character

Setting Item, Setting Range
Factory Default
EVT3 pH input error alarm time
0 sec.
when EVT output OFF
Setting range: 0 to 10000 seconds or minutes
EVT3 cycle variable range
50.0%
Setting range: 1.0 to 100.0%
EVT3 cycle extended time
0 sec.
Setting range: 0 to 300 seconds
EVT3 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
EVT3 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
EVT3 High/Low limits
pH input: pH 0.00
independent lower side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT3 High/Low limits
pH input: pH 0.00
independent upper side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT3 hysteresis
pH input: pH 0.10
Temperature input: 1.0
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0

Data

12.12 EVT4 Action Group
Available only when EVT3, EVT4 outputs (EVT3 option) are/is ordered.
Character

Setting Item, Setting Range
Factory Default
EVT4 type
No action: No action: pH input low limit action: pH input high limit action: Temperature input low limit action: Temperature input high limit action: Error output: Fail output: Cleansing output: pH input error alarm output: pH fluctuation alarm output: pH input High/Low limits independent action: Temperature input High/Low limits independentaction80

Data

Character

Setting Item, Setting Range
EVT4 value
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT4 proportional band
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT4 reset
pH input: pH 4.00
Temperature input: 10.0
EVT4 hysteresis type
: Medium Value: Reference Value
EVT4 ON side
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT4 OFF side

Factory Default
pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00
Temperature input: 0.0

pH input: pH 0.00
Temperature input: 0.0

Reference Value

pH input: pH 0.10
Temperature input: 1.0

pH input: pH 0.10
Temperature input: 1.0

pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0
EVT4 ON delay time
0 sec.
Setting range: 0 to 10000 sec
EVT4 OFF delay time
0 sec.
Setting range: 0 to 10000 sec
EVT4 proportional cycle
30 sec.
Setting range: 1 to 300 sec
EVT4 output high limit
100%
Setting range: EVT4 output low limit to 100%
EVT4 output low limit
0%
Setting range: 0% to EVT4 output high limit
Output ON time when EVT4 output ON
0 sec.
Setting range: 0 to 10000 sec
Output OFF time when EVT4 output ON

Setting range: 0 to 10000 sec

81

0 sec.

Data

Character

Setting Item, Setting Range
Factory Default
EVT4 pH input error alarm EVT type
No action: EVT1 type
: EVT2 type
: EVT3 type
: No action
EVT4 pH input error alarm band
pH 0.00
when EVT output ON
Setting range: pH 0.00 to 14.00
EVT4 pH input error alarm time
0 sec.
when EVT output ON
Setting range: 0 to 10000 seconds or minutes
EVT4 pH input error alarm band
pH 0.00
when EVT output OFF
Setting range: pH 0.00 to 14.00
EVT4 pH input error alarm time
0 sec.
when EVT output OFF
Setting range: 0 to 10000 seconds or minutes
EVT4 cycle variable range
50.0%
Setting range: 1.0 to 100.0%
EVT4 cycle extended time
0 sec.
Setting range: 0 to 300 seconds
EVT4 pH fluctuation alarm time
0 hours
Setting range: 0 to 72 hours
EVT4 pH fluctuation alarm band
pH 0.00
Setting range: pH 0.00 to 14.00
EVT4 High/Low limits
pH input: pH 0.00
independent lower side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT4 High/Low limits
pH input: pH 0.00
independent upper side band
Temperature input: 0.0
pH input: pH 0.00 to 14.00
Temperature input: 0.0 to 100.0
EVT4 hysteresis
pH input: pH 0.10
Temperature input: 1.0
pH input: pH 0.00 to 4.00
Temperature input: 0.0 to 10.0

82

Data

12.13 Basic Function Group
Character

Setting Item, Setting Range
Factory Default
Set value lock
Unlock: Unlock: Lock 1: Lock 2: Lock 3
Communication protocol
Shinko protocol: Shinko protocol: MODBUS ASCII mode
: MODBUS RTU mode0
Instrument number
Setting range: 0 to 95
Communication speed
9600 bps: 9600 bps: 19200 bps: 38400 bps
Data bit/Parity
7 bits/Even: 8 bits/No parity: 7 bits/No parity: 8 bits/Even: 7 bits/Even: 8 bits/Odd: 7 bits/Odd
Stop bit
1 bit: 1 bit: 2 bits
Transmission output 1 typepH transmission: pH transmission: Temperature transmission: EVT1 MV transmission: EVT2 MV transmission: EVT3 MV transmission: EVT4 MV transmission
pH transmission: pH 14.00
Transmission output 1
Temperature transmission: 100.0high limit
MV transmission: 100.0%
pH transmission: Transmission output 1 low limit to pH 14.00
Temperature transmission: Transmission output 1 low limit to
100.0
MV transmission: Transmission output 1 low limit to 100.0%

83

Data

Character

Setting Item, Setting
Range
Transmission output 1
low limit

Factory Default

pH transmission: pH 0.00
Temperature transmission: 0.0
MV transmission: 0.0%
pH transmission: pH 0.00 to Transmission output 1 high limit
Temperature transmission: 0.0 to Transmission output 1 highlimit
MV transmission: 0.0% to Transmission output 1 high limit
Transmission output 2 type Temperature transmission: pH transmission: Temperature transmission: EVT2 MV transmission: EVT3 MV transmission: EVT4 MV transmission
pH transmission: pH 14.00
Transmission output 2
Temperature transmission: 100.0high limit
MV transmission: 100.0%
pH transmission: Transmission output 2 low limit to pH 14.00
Temperature transmission: Transmission output 2 low limit to
100.0
MV transmission: Transmission output 2 low limit to 100.0%
pH transmission: pH 0.00
Transmission output 2
Temperature transmission: 0.0
low limit
MV transmission: 0.0%
pH transmission: pH 0.00 to Transmission output 2 high limit
Temperature transmission: 0.0 to Transmission output 2 highlimit
MV transmission: 0.0% to Transmission output 2 high limit
Transmission output 1
Last value HOLD
status when calibrating: Last value HOLD
: Set value HOLD
: Measured value
pH transmission: pH 0.00
Transmission output 1
Temperature transmission: 0.0
value HOLD when
MV transmission: 0.0%
calibrating
pH transmission: pH 0.00 to 14.00
Temperature transmission: 0.0 to 100.0
MV transmission: 0.0 to 100.0%
Transmission output 2
Last value HOLD
status when calibrating: Last value HOLD
: Set value HOLD
: Measured value

84

Data

Character

Setting Item, Setting
Factory Default
Range
pH transmission: pH 0.00
Transmission output 2
Temperature transmission: 0.0
value HOLD when
MV transmission: 0.0%
calibrating
pH transmission: pH 0.00 to 14.00
Temperature transmission: 0.0 to 100.0
MV transmission: 0.0 to 100.0%
Backlight selection
All are backlit.
: All are backlit.
: pH Display: Temperature Display: Action indicators: pH Display + Temperature Display: pH Display + Action indicators: Temperature Display + Action indicators
pH colorRed: Green: Red: Orange: pH color changes continuously.
pH color reference value
pH 7.00
Setting range: pH 0.00 to 14.00
pH color range
pH 2.00
Setting range: pH 0.10 to 14.00
Backlight time
0 minutes
Setting range: 0 to 99 minutes
Bar graph selection
No indication: No indication: Transmission output 1: Transmission output 2
EVT output when input errors occur Disabled: Disabled: Enabled
Temperature Display when no
Unlit
temperature compensation: Unlit: Reference temperature
Number of cleansing cycles
0 (Continuous cleansing)
Setting range: 0 to 10 (0: Continuous cleansing)
Cleansing interval
360 minutes
Setting range: 60 to 3000 minutes

85

Data

Character

Setting Item, Setting Range
Factory Default
Cleansing time
600 sec.
Setting range: 1 to 1800 seconds
Restore time after cleansing
600 sec.
Setting range: 1 to 1800 seconds
Transmission output 1
Last value HOLD
status when cleansing: Last value HOLD
: Set value HOLD
: Measured value
Transmission output 1 value
pH transmission: pH 0.00
HOLD when cleansing
Temperature transmission: 0.0
MV transmission: 0.0%
pH transmission: pH 0.00 to 14.00
Temperature transmission: 0.0 to 100.0
MV transmission: 0.0 to 100.0%
Transmission output 2
Last value HOLD
status when cleansing: Last value HOLD
: Set value HOLD
: Measured value
Transmission output 2 value
pH transmission: pH 0.00
HOLD when cleansing
Temperature transmission: 0.0
MV transmission: 0.0%
pH transmission: pH 0.00 to 14.00
Temperature transmission: 0.0 to 100.0
MV transmission: 0.0 to 100.0%
pH input error alarm time unit
Second(s): Second(s): Minute(s)Data

12.14 Zero/Slope Indication Group
Character

Setting Item, Indication Range
Factory Default
Zero indication
0.0 mV
Indication range: Voltage equivalent to pH 1.5
Slope indication
59.2 mV
Indication range: Voltage equivalent to pH 0.00 to 14.00

86

Data

12.15 Error Code List
If any error occurs, its error code will flash on the Temperature Display.
Error
Error
Error
Description
Code
Type
Contents
When calibrating, the response
Response
Errorof the pH Combined Electrode
Speed Error
Sensor is slow.
When the difference between
the input and each of the 1st
and 2nd solutions are within pH
1.50, and input fluctuation isover pH 0.05 (in 10 seconds
of assessment cycles) for 5
minutes, this is assumed to be
an error.
However, if input fluctuation isless than or equal to pH 0.05,
this is assumed to be within thenormal range.
When calibrating, sensitivity ofElectrodeError
the pH Combined ElectrodeSensitivity
Sensor has deteriorated.
Error
The difference between 1st and2nd standard solution value
after calibration is less than orequal to pH 2.00.
When calibrating pH 7, theAsymmetry
Error
Potential Error difference in electromotive force
between the sensor-measured
value and standard value
exceeds the equivalent of pH
1.50.
The specified standard solution
StandardError
has not been used.
Solution Error
When pH
1.50 is exceeded
for the 1st and 2nd solutions.
Solution TemWhen temperature is 55 orError
more at pH 10 solution.
perature Error
Temp. Sensor
Temperature sensor lead wire is
FailBurnout
burnt out.
Temp. Sensor
Temperature sensor lead wire is
FailShort-circuited short-circuited.
Outside Temp. Measured temperature has
Error
Compensation exceeded 110.0 .
Range
OutsideTemp. Measured temperature is less
Error
Compensation than 0.0 .
Range(Abbreviation: Temp: Temperature)87

OccurrenceWhencalibratingWhenmeasuringor calibrating*****

Inquiries*****

For any inquiries about this unit, please contact our agency or thevendor where you purchased the unit after checking the following.
[Example]• Model--------------------------- AER-102-PH• Serial number----------------- No. 195F05000

In addition to the above, please let us know the details of themalfunction, or discrepancy, and the operating conditions.

SHINKO TECHNOS CO., LTD.
OVERSEAS DIVISION
Head Office: 2-5-1, Senbahigashi, Minoo, Osaka, 562-0035, Japan[URL]
https://shinko-technos.co.jp/e/Tel: +81-72-727-6100[E-mail]overseas@shinko-technos.co.jp
Fax: +81-72-727-7006

No. AER11PHE9

2021.10