SPEC SHEET
pH/ORP Meter for Outdoor Use
FEB-102-PH• pH meter and ORP meter selectable via keypad• 2-points Contact output (EVT output) and 2-points Current output(Transmission output) are standard features.
• Software communication (RS-485) (Optional)• Cleansing output function equipped• Drip-proof/Dust-proof IP65: Suitable for outdoor use
NameModel

pH/ORP meter for outdoor use
FEB-10

Input points
Input

22-PH,PH

Supply voltage
C5
EVT3
EVT4Option

2 points
pH combined electrode sensor (Cu500/25or Pt1000)
ORP combined electrode sensor (*1)
100 to 240 V AC
Serial communication RS-485 (*2)
EVT3 output (Contact output 3) (*3)
EVT3, EVT4 output (Contact output 3, 4) (*2)

, Pt100(*1) Available if(ORP meter) is selected in [Model selection].
(*2) If the C5 or EVT4 option is ordered, Transmission output 1 and 2 will not be available.
(*3) If the EVT3 option is ordered, Transmission output 1 will not be available.

Rated scale

Input

Input
Scale RangeResolution
pH combined electrode sensor
0.00 to 14.00 pH
0.01 pH
ORP combined electrode sensor-2000 to 2000 mV
1 mV
No temperature compensation
Pt100
Temperaturecompensation Pt1000
0.0 t 100.00.1Cu500
pH combined electrode sensor (pH sensor: JIS Z8802, Temperature element: Cu500/25 , Pt100 or Pt1000)
ORP combined electrode sensor (Temperature element: Cu500/25 , Pt100 or Pt1000)

Repeatability

pH meter:

0.05 pH,

ORP meter: Within

5 mV (at equivalent input)

Linearity
Temperature indicating
accuracy
Input sampling period
Time accuracy
EVT output (2 points)

pH meter:

0.05 pH,

ORP meter: Within

5 mV (at equivalent input)

Calibration function
Cleansing output

Transmission output
1, 21125 ms (2 inputs)
Within1 % of setting time
Setting accuracy: Same as Temperature indicating accuracy
Output action: P control: When proportional band is set to any value except 0ON/OFF control: When proportional band is set to 0
Output: Relay contact 1a,Control capacity: 3 A 250 V AC (Resistive load), 1 A 250 V AC (Inductive load cos =0.4)
Electrical life: 100,000 cycles
Action ON delay time: 0 to 10000 seconds
Action OFF delay time: 0 to 10000 seconds2-points pH calibration (Auto, manual calibration) using standard solutions. Standard solution: pH 2, 4, 7, 9, 10 (JIS)
Temperature calibration (1 point)
Cleansing output mode: An EVT output (for which the cleansing output is selected) will turn ON during theconfigured cleansing time.
Manual cleansing mode: During Manual cleansing mode, cleansing action is performed using the ‘Cleansing time’and ‘Restore time after cleansing’ settings. After cleansing action is finished, the unit
automatically reverts to Cleansing output mode.
Converting pH, temperature or ORP value to analog signal every input sampling period, and outputs the value
in current. (The placement of the decimal point place does not follow the selection. It is fixed.)
Resolution
12000
Current
4 to 20 mA DC (Load resistance: Max 550 )Output accuracy
Within0.3 % of Transmission output span

EVT3, EVT4 output(EVT3, EVT4 options)Self-diagnosis
Ambient temperature
Relative humidity
Power supply
Mounting
Case, Front panel
Drip-proof/Dust-proof
Safety standards
Dimensions(Scale: mm)

The following operations can be carried out from an external computer.
(1) Reading and setting of various set values(2) Reading of pH, temperature, ORP value or status(3) Function change and adjustment
1.2 km (Max), Cable resistance value: Within 50(Terminators are not
Cable length
necessary, but if used, use 120
or more on one side.)
Communication line
EIA RS-485
Communication method
Half-duplex communication
Error correction
Command request repeat system
Parity check, Checksum (Shinko protocol),Error detection
LRC (Modbus protocol ASCII), CRC-16 (Modbus protocol RTU)
Communication speed, Synchronization method, Code form, Communication protocol, Data bit/parity and Stop bit
are selectable via keypad.
Same as EVT output
The CPU is monitored by a watchdog timer, and if an abnormal status occurs, the instrument is switched towarm-up status.
-20 to 50(Indicating accuracy is effective within 0 to 50 . Avoid direct sunlight.)
35 to 95 %RH (Non-condensing)
100 to 240 V AC 50/60 Hz, Allowable fluctuation range: 85 to 264 V AC, Power consumption: Approx. 10 VA
Wall mounting
Case: Polycarbonate, Color; Metallic gray, Front panel: Membrane sheet
IP65
RoHS directive conformityDimensions: W239.5 x H190 x D75 mm
2Serial communication(optional)

4-Weight: Approx. 950 g

9 mounting hole125(190 max)
161.5

21.2

186

34
1638

7 key hole
7534

34

34

220
239.5

Terminalarrangement

E:
pH combination electrode sensor shielded wire terminal (①)
G, R:
pH combination electrode sensor terminals (② - ③)
E:
ORP combination electrode sensor shielded wire terminal (①)
M, R: ORP combination electrode sensor terminals (② - ③)T, T:
Temperature element Cu500 (2-wire) Temperature compensation sensor terminals (⑥ - ⑦)A, B:
Temperature element Pt100 (2-wire), Pt1000 (2-wire) Temperature compensation sensor terminals (⑥ - ⑦)
A, B, B: Temperature element Pt100 (3-wire) Temperature compensation sensor terminals (⑥ - ⑦ - ⑧)
TRANSMIT OUTPUT1: Transmission output 1 terminals (⑩ - ⑪) (Not available if the C5 or EVT3/EVT4 option isordered)
TRANSMIT OUTPUT2: Transmission output 2 terminals (⑫ - ⑬) (Not available if the C5 or EVT4 option is ordered)
EVT1: EVT1 output (Contact output 1) terminals (⑭ - ⑮)
EVT2: EVT2 output (Contact output 2) terminals (⑯ - ⑰)
EVT3: EVT3 output (Contact output 3) terminals (⑩ - ⑪) (When the EVT3 or EVT4 option is ordered)
EVT4: EVT4 output (Contact output 4) terminals (⑩ - ⑪) (When the EVT4 option is ordered)
RS-485: Serial communication terminals (⑩ - ⑪ - ⑫) (When the C5 option is ordered)
POWER SUPPLY: Power terminal (⑱ - ⑲)
FG: Ground terminal (⑳)

20140512