ManualNo.3191E R7OPERATION MANUAL FOROXYGEN ANALYZER MODEL
SH-204-AW(RX-501125-A)

READ THE OPERATION MANUAL.

Safety Precautions
For safe operation of this equipment, be sure to observe the following precautions.
WARNING
1. When connecting cables to the terminals of the analyzer, take care to avoid electric shocks.
Always turn the power OFF before connecting wiring.
2. Connect the ground wire to prevent electric shock accidents.
3. When working on the gas inlet and gas outlet pipes of the analyzer or disconnecting pipes
for maintenance, always turn OFF the gas source valve to prevent gas intoxication or oxygen
deficiency.
4. To prevent gas intoxication or oxygen deficiency accidents, test for gas leakage afterworking on the gas inlet and gas outlet pipes of the analyzer, and after maintenance.
CAUTION
1. To prevent electric shock, before you turn on the power switch always check that the power
supply wiring is correctly and securely connected, and that the supply voltage matches thepower source voltage of this device.
2. To prevent gas intoxication or oxygen deficiency, before you open the gas source valve
always check that the gas inlet and outlet pipes of the analyzer are correctly and securely
connected, and check that there is no gas leakage.
3. To prevent burns, do not touch the sensor, pump and surrounding areas as they are very hot
during operation and for a while after stopping. If you must perform maintenance on them,wear heat resistant gloves and take care to avoid getting burned.
4. The electric shock warning mark shown at the right is attachednear the power supply parts where there is a danger of receiving
an electric shock. Even when there is no electric shock warningmark for the wiring, turn off the power first before starting work if
you are not certain about the wiring circuits.
5. There is danger of gas intoxification if the sample gas has toxic contents, so always close
the gas source valve before performing maintenance work on the piping system.
6. To operate this device safely and correctly, be sure to observe the Caution notices andoperation instructions in this Operation Manual. Failure to strictly observe the instructions
may result in electric shock, gas intoxification, oxygen deficiency, burns, damage or reduced
function of the device itself, or damage to the final product (system, etc.)

Warranty
1. Warranty Period:

2. Conditions:

3. Scope:
4. Disclaimer:

For delivery as a separate part, this warranty is valid for 1 year from thedate of delivery.
However, if the oxygen analyzer is installed in a device, the warranty is valid
for the same warranty period that applies to the device. Delivery as a separate
part means that ENERGY SUPPORT CORP. delivers the analyzer as aseparate part, and installation in a device means that ENERGY SUPPORTCORP. combines the analyzer with a sampling flow or other device and theanalyzer is delivered as part of the device.
Provided that this product has been properly stored and installed after
delivery to the customer, the manufacturer shall replace or repair thisproduct free of charge to the customer if a breakdown or malfunction
occurs during the above-mentioned warranty period, despite proper usage
by the customer, due to defective design, manufacture or materials of thisproduct that is the responsibility of the manufacturer.
Proper usage conditions are defined as follows:
Installation conditions and usage conditions as specified in theSpecifications and Warranty Booklet and this Operation Manual.
Performance of periodic analyzer calibration and replacement ofconsumable parts.
Performance of periodic inspection and maintenance in accordancewith the analyzer operating conditions.
However, this warranty does not cover the occurrence of the following
events even if they occur during the validity period of this warranty.
1) Breakdown caused by operation errors (operation that is contrary to
the instructions in the Operation Manual).
2) Breakdown caused by repairs, modification, disassembly or cleaning
performed by other than the manufacturer.
3) Breakdown caused by fire or natural disasters (including lightninginduced power surges).
4) Breakdown caused by inadequate storage (storage under hightemperature, high humidity conditions, etc.) or inadequate
maintenance (mold growth, etc.).
NOTE: This warranty does not apply to consumable parts and parts
subject to wear.
The scope of this warranty is limited to products provided by ENERGYSUPPORT CORP.
ENERGY SUPPORT CORP. accepts no responsibility whatsoever forincidental damage resulting from breakdown of this product (such as damage
or financial loss resulting from control or records based on this product, or
damage or financial loss resulting from devices to which this product isinstalled). It is recommended that customers install appropriate safety devices.

Table of Contents
1.

2.

3.

4.

5.

Introduction ........................................................................................................ 1
1-1

Introduction ........................................................................................... 1

1-2

Usage Caution Notices .......................................................................... 1

1-3

Product Outline ..................................................................................... 1

1-4

Components........................................................................................... 4

Opening the Packaging ....................................................................................... 7
2-1

Checking the Components and Accessories ........................................... 7

2-2

Temporary Product Storage ................................................................... 7

Installation .......................................................................................................... 7
3-1

Installation Conditions ........................................................................... 7

3-2

Installation Method ................................................................................ 8

3-3

Piping and Wiring Methods ................................................................... 8

Operation .......................................................................................................... 12
4-1

Operation Preparation .......................................................................... 12

4-2

Start-up................................................................................................ 13

4-3

Stop Procedure .................................................................................... 14

4-4

Procedure During Operation ................................................................ 15

4-5

Operation for when an Error Occurs .................................................... 24

4-6

Applied Operations .............................................................................. 25

Maintenance ..................................................................................................... 28
5-1

Daily and Periodic Inspection .............................................................. 28

5-2

Troubleshooting .................................................................................. 29

5-3

Supply Parts List ................................................................................. 31

5-4

Sensor Replacement Procedure ............................................................ 31

6. Reference Material ............................................................................................... 32
6-1

Standard Specifications ....................................................................... 32

1.

Introduction

1-1

Introduction
The SH-204-AW Oxygen Analyzer is a product of the latest ceramics production technology,
using a thick film sensor and digital signal processing technology. This Operation Manualexplains how to operate the SH-204-AW Oxygen Analyzer.
Please read this manual thoroughly to ensure long, successful operation of yourSH-204-AW Oxygen Analyzer.

1-2

Usage Caution Notices• Do not install the analyzer in a location subjected to vibration.
• Do not apply water or volatile fluids to the analyzer.
• Do not use sample gas containing corrosive gases (F, HF, CL2, HCL, SO2, H2S, etc.) or
poisonous materials (Si, Pb, P, Zn, Sn, As, etc.). These can shorten the life of the sensor.
• Do not use sample gas containing inflammable gas. The inclusion of inflammable gas cancause deviation in the oxygen concentration measurement value.
• The main applications for this oxygen analyzer include N2 reflow furnaces, N2 flow furnaces,
air separation plants, gas purity control, inert gases for seals, and ambient oxygen
concentration measurement for ferrite calcination furnaces. For other applications, please
consult us.

1-3

Product Outline
The SH-204-AW Oxygen Analyzer has the following features.
• With one calibration of the air sample point, measurement from ppm - % is possible.
• The oxygen analyzer has a built-in pump. (No sampling device is necessary.)• Compact size. (Small installation space.)• Easy maintenance.
• Low power consumption by the sensor. (About 50 W for normal use.)• Short warm up time.
• No power switch.

1

Operating Principles of the SH-204-AW Oxygen Analyzer(1) Configuration and Functions (See diagram at right.)
Heater:Sensing cell:

Heats the sensor to approximately 800℃.
Sets the oxygen concentration of the reference oxygen
chamber to 100%, and measures the oxygen
concentration of the gas detection chamber.
(See below for detailed principles.)Pumping cell:
Sets the oxygen concentration of the gas detection
chamber to 0%.
(See below for detailed principles.)Gas detection chamber:
Inducts gas through the gas diffusion holes.
Reference oxygen chamber:
The oxygen concentration is set at approximately 100%by the reference oxygen microcurrent.
(2) Detection characteristics resulting from high temperature heating of the sensor:
When a gas with a different oxygen concentration is put between the electrodes, oxygenion conductivity occurs and electromotive force is generated. (Oxygen concentration celleffect)When current is applied between the electrodes, oxygen ions flow in the opposite
direction in proportion to the current. (Oxygen pumping effect)
The sensing cell uses characteristics
andabove, and the pumping cell uses
characteristic
above.
(3) Sensing Cell Principles
Minute current flows between the electrodes of the sensing cell. When current is applied
between the electrodes, the oxygen inside the gas detection chamber is transferred to thereference oxygen chamber so that the oxygen concentration in the reference oxygen
chamber is approximately 100%.
Note: The quantity of oxygen transferred from the gas detection chamber to the reference
oxygen chamber is extremely small, so it does not affect the oxygen concentrationin the gas detection chamber.
The electromotive force in the following equation is generated between the electrodes ofthe sensing cell by the difference between the oxygen concentration in the gas detection
chamber and the reference oxygen chamber.
The sensing cell measures the electromotive force generated between its electrodes andsends signals to the pumping cell so that the electromotive force reaches 450 mV (oxygen
concentration of 0% in the gas detection chamber).
Oxygen concentration in gas detection chamber
Electromotive
E＝ -53.2×log10
force
Oxygen concentration in reference oxygen chamber（ 100）450＝ -53.2×log10

X
100

X＝ approx． 0.003ppm＝ 0%(4) Pumping Cell Principle
The pumping cell receives the signal from the sensing cell and applies current to the electrodes so thatthe oxygen concentration in the gas detection chamber reaches 0%.
The current applied and the oxygen concentration in the sample gas are proportional, so by measuring
the current the oxygen concentration in the sample gas can be measured.

2

Pumping Current（ mA）

Sensor Element Construction

A

B

B

A

Exhaust gas O2 concentration （ %）HeaterSensorHeater temperature
control① Heater③ Pumping cell

O- GasGas diffusion
holes

Gas

O- -

Pumping
current④ Gas detection
chamber
Pumping current
controller② Sensing cell
Microcurrent togenerate
reference oxygen⑤ Reference oxygen chamber

Ａ－Ａ

Outputsignal

Ｂ－Ｂ

3

Reference voltage（ 450mV）

1-4

Components(1) Overall Configuration

Sample gas

Sintered metal
filter（ not supplied）

Activatedcharcoal filter（ not supplied）

Oxygen analyzer bodyGAS OUT
Rc1/4

GAS IN
Rc1/4

Flow meter&
Needle valve

Oxygen sensor
regulator

EJECTOR IN
Rc1/4

Vacuum ejector※The supply pressure of Air or N2 to”EJECTOR IN” is to be within therange of 0.1MPa to 0.5MPa.

Analyzer internal piping
CUT1/8inch
Nylonφ6/4

Oxygen analyzer receiver
DC24V

Power
SupplyAC100V
AC100～240V

AC100V
AC100 Output Output RY1
4～ 20 0～ 5
～240V
mA
V

RY2

RY3

Output contact

RY4 IN1 IN2 IN3Input contact※See pages 20 and 28 for description of the※See pages 19 and 27 for description of the
Input/output
input/output contacts
contacts

4(2)Oxygen Analyzer Body Exterior Diagram

5(3) Receiver Operation Panel

O2 ANALYZER

1

O2
Vol

2

％
POWER

4
5

ppm
RANGE

3
ENT

6

NumberName (Function)

1

POWER lamp (Illuminated when POWER is on.)2

Display 1 (5 digits for Concentration, Data, Error display)3

Display 2 (3 digits for Range, Concentration warning, Channel display)4% range lamp (Illuminated when % is measured.)5

ppm range lamp (Illuminated when ppm is measured.)6

Keys (For Calibration, Data setting)6

2.

Opening the Packaging

2-1

Checking the Components and Accessories
Part Name
Oxygen Analyzer

2-2Part Number

Qty.

RX-501125-A

Comments

1

Temporary Product Storage
When storing the product temporarily prior to installation, observe the following conditions.

!

• It is preferable to store the product inside a box, protected by polystyrene, etc.
Store the product in a location with the following features:• Away from direct sunlight.
• The ambient temperature is between –10 ºC and 50 ºC, with little variation in temperature.
• There is little humidity and dust.
• The location is not exposed to rainfall.
• There is little mechanical vibration.
• There are no corrosive gases or dangerous gases.

3.

Installation

3-1

Installation Conditions! This oxygen analyzer must be installed indoors. For safe, correct use of your oxygen analyzer,
install the analyzer in a location with the following conditions to provide the best possible
installation conditions.
• There is little vibration.
• It is not affected by corrosive gases (F, HF, CL2, HCL, SO2, H2S, etc.), and will not interferewith maintenance personnel.
• Condensation is not caused by sudden temperature fluctuations.
• It is not affected by direct heat radiation.
• It is affected little by noise.
• There is little humidity and dust.
• The ambient temperature is between 0℃ and 45℃.

7

3-2

Installation Method
Installation Cautions• This oxygen analyzer is a precision instrument. When installing it, avoid large shocks andapplying a load upon it.
• The gas ports, flow meter needle valve, and the needle valve jut out from the panel, so they
are easily damaged. Take care not to knock them during installation.
• An M4 tap is provided on each side of the oxygen analyzer body for use in securing theanalyzer.

3-3

Piping and Wiring Methods(1)Piping Arrangement
In the oxygen analyzer, GAS IN, GAS OUT and EJECT IN

are installed as piping

connections.
Size of these connections is Rc 1/ 4. Pay attention during piping work on each classification.

The piping is extremely important for performing precise measurement. Take care withthe following items when connecting the piping.
Pipe Material• When using the ppm range: Use copper or stainless steel.
• When using the % range: Use pipes made of teflon, viton, vinyl, nylon or the like.
NOTE: • When using pipes made of organic materials, resin or rubber, select amaterial which can withstand the heat of the sample gas. Teflon and nylon
piping are permeable to oxygen, so they are not suitable for measurementof oxygen concentration ≦ 1%.
• Never use silicone tubing or packing. Silicone tubing is permeable toatmospheric oxygen and increases the indicated value, and use of silicone
tubing or packing can also cause rapid deterioration of the sensor.

8Oil Removal from Metal Pipes• Clean oil or organic material off the interior of copper or stainless steel pipes withan evaporative cleaning solvent, then purge the pipe thoroughly using N2 gas or air.
NOTE: The oil and organic material inside the metal pipe gradually mix into themeasured sample gas when it flows, and they burn in the vicinity of thesensor when the sensor is heated to a high temperature, thus reducing theindicated value.
Do not create gas pockets in the pipe.
• Avoid providing large receptacles along the pipe.
• Keep the pipes as short and simple as possible.
NOTE:

Creation of large gas pockets along the pipe route (filters or activatedcharcoal filter, etc.) or using long pipes increases the time taken to replace
the measured gas, and increases wasted time and response time. Use theminimum required gas pockets and hose length.
Elimination of corrosive gas (F, HF, CL2, HCL, SO2, H2S, etc.)• If using an activated charcoal filter, pay attention to the life of the activatedcharcoal.
• If using cleaning by water, take care with the effect of the dissolved oxygen in thewater and the replacement cycle.
Drain water removal• If any drain water enters the sensor unit, the zirconia element is heated to hightemperatures and the heat shock damages the zirconia element, making
measurement impossible. Remove the drain water using a drain filter or drain trap,etc.
• If the condensation temperature of the sample gas is higher than the ambient
temperature, install a drain trap or electronic cooler in the pipe to remove the drainwater. Install the pipe so it is inclined downward to enable the drain water to flowsmoothly.
Dust and Mist Removal
Dust and mist can cause damage such as clogging the pipes or dirtying of the zirconia
element, so remove them with a filter.
It could be very useful if you provide a 3-way ball valve at the front stage of theoxygen analyzer so that the pump inside the analyzer can suck in atmospheric air.
When using the range of 0 - 1000 ppm or less, it could be very useful if you install astandard gas cylinder in the piping.

9

Piping Arrangement Example

Samplegas inlet

SinteredmetalfilterActivatedcharcoalfilter3-way
cock

Oxygen Analyzer

Samplegas outlet

Air

Zero gascylinderSpan gascylinderNOTE: If the sample gas pressure is above 50KPa, use the pressure regulator to set the pressure
at 50KPa or less.

10(2) Wiring Method
Wiring to the oxygen analyzer is connected to the terminal block using M4 screws. Make
sure the polarity is correct when you connect wires to the terminal block.
Terminal Block Arrangement and Contents

AC100V~240V
FG
4 - 20 mA: Power terminal (AC100V10V, 50/60 Hz, max. 100VA): Casing grounding terminal: Oxygen concentration output DC 4 - 20 mA (for selection range)
Non-insulated output, load resistance 600 Ω or less
0–5V
: Oxygen concentration output DC 0 - 5 V (for selection range)
Non-insulated output, load resistance 10K Ω or above
IN1: No-voltage contact input terminal 1
IN2: No-voltage contact input terminal 2
IN3: No-voltage contact input terminal 3
COM: COM terminal for IN1 - 3
RY1: Open collector output terminal 1 (permissible rating DC 25V, max.50 mA)
RY2: Open collector output terminal 2 (permissible rating DC 25V, max.50 mA)
RY3: Open collector output terminal 3 (permissible rating DC 25V, max.50 mA)
RY4: Open collector output terminal 4 (permissible rating DC 25V, max.50 mA)
COM: COM terminal for RY1 - 4*For detailed specifications of IN1- 3 and RY1 - 4, see the Operation Manual
P.20 and P.28.

Example of Wiring Circuit to RY

RY
DC25V 50mA or less

R1
COM
R1
DC or AC

Warning lamp ,etc

11

4.

Operation

4-1

Operation Preparation
Before you turn the power ON, perform the following inspection.

Start pre-operation
inspection

NO

Is the power cordconnected properly?

Connect it.

YES

Is the analyzer
input/output wiring
connected properly?

NO

Connect it.

YES

NO

Is the ejector piping
connected properly?

YES

Connect it.

※The supply pressure of
Air or N2 to ”EJECT IN” isto be within the range of
0.1MPa to 0.5MPa

Is the sample gas
piping connected
properly?

NO

YES

Pre-operation
inspection completed

12

Connect it.

4-2

Start-up
Perform the basic start-up operation as follows.
O2 ANALYZER

Display 1

O2
Vol
％
POWER

ppm
RANGE

Display 2

Start-up operation
ENT

Turn power ON

Check/change
Output range

When you turn ON the power to the analyzer, the
POWER LED lights up and Display 1 starts thecountdown. After 3 minutes, measurement can start.
Display 1 displays the countdown as follows.
3.00 → 2.59 → ... → 0.01 → 0.00 → Concentration
display

Display 2 displays the output range No.
When range No. 1 is selected: 1
When range No. 2 is selected: 2
When range No. 3 is selected: 3
When range No. 4 is selected: 4
Checking and changing of each range is performed
using the receiver setting data (CH030 - 037).
If the concentration warning is output, the range No.
is not displayed, and AH (concentration high) or AL(concentration low) is displayed.
For details, see page 22, 4-4 Procedure During
Operation, (2) Output Range Switching.
For gas calibration, see page 23, 4-4 Procedure
During Operation, (4) Gas Calibration.

Gas calibration

Pump power ON, Sample
gas flow adjustment

By flowing ejector N2 or air, adjust the flow ofsample gas to be 0.5L/min with needle valve on theflow meter.
Inside of the ejector, pressure is adjusted by
reducing 0.5MPa down to 0.2MPa with internal
regulator, and if the readjustment is necessary,adjust it with internal regulator.

Measurement

13

4-3

Stop Procedure

Stop Procedure

Shut off the ejector
air or N2

Turn OFF the power

Turn OFF the power supply to the oxygen analyzer.

If operation is stopped for a short period such as 1 week or less, do not turn off the power.
If operation is stopped for a longer period, once the sample gas is replaced by ambient air, shut
off the ejector then turn off the power.

14

4-4

Procedure During Operation(1) Key Operation Method
Key operation is required to change the range and perform gas calibration when starting
up. This operation is very important, so be sure to read these instructions.
Key operation may change the oxygen analyzer output, so when using the oxygen
analyzer output signals for control purposes, always apply the control release device
before operating the keys.

Key Functions

ENT

key ······· Press this key to shift from the O2 Concentration display to the datasetting mode, or to move toward the left digit of the setting data. The
currently changeable digit flickers.
key ······· Press this key to change the value of the set CH and the set data.
key ······· Press this key in the following cases.
* To insert a decimal point after the flickering digit.
* To switch to the opposite sign when the set data has a plus or minus sign.
* To return to the O2 Concentration display mode from the data settingmode.
* To clear an error when it has occurred.
key ······· Press this key to save data in the receiver memory after changing thevalue of the set CH or set data.

O2 ANALYZER
O2
Vol
％
POWER

ppm
RANGE

ENT

Key

15

Key Operation Method
Display 1O2 ANALYZER
LED
1

LED
2

LED
3

LED
4

LED
5

O2
Vol
％

POWER

LED
6

LED
7

LED
8

ppm
RANGE

Key Operation Method

Display 2

ENT

Key

During measurement

Display 1 is the O2 Concentration display
Display 2 is the Range or Concentration warning display.
First press the
key.
Display 2 will display the CH No. and LED 8 will
flicker. Display 1 displays the data.

Press

Press
or
to set the CH No. of thedata you wish to display on Display 2.
Press

Press

or

ENT

Press ENT .
LED 5 on Display 1 will flicker.
Display 2 will continue to display the CH No.

Press
or
to change the data
displayed on Display 1.
Press

Press

or

ENT

Press

During measurement

Press ENT to save the data in the receiver
memory.

Press
display

to return to the O2 Concentration

Key operation is finished.
Using steps
above, you can change the range
and perform gas calibration.
The following page displays the System Data Table
explaining which data is input to which CH.

16

System Data Table
CH
No.

000

001
002
003
004
005
006
007
008
|

015
016
017
|

018
019

Function

0: No display (--------)
1: Oxygen concentration
2: Icp
3: Vs
4: Ip1
Display selection
5: Ip2
6: Vp
7: Vh
8: Ih
* 2 - 9 are for
9: CPU Ih- checking use
Sensor output Vs monitor (V)
by ENERGY
Sensor output Ip monitor (A)
SUPPORT- CORP.
Sensor output Ip monitor (A)
Sensor output Vp monitor (V)Sensor heater voltage monitor (V)Sensor heater current monitor (A)Sensor heater current monitor (A)-Primary delay time (sec)

Sensor data continuous input

021

Data for setting, checking by
ENERGY SUPPORT CORP.

023
024
025
026
027
028
029

1

Monitorvalue

0 - 990Data for setting, checking by
ENERGY SUPPORT CORP.

Output range switching022

RX-501125-A

Data for setting, checking by
ENERGY SUPPORT CORP.

020|

Setting Data

0: Default value
1: When 1 is input, continuous input
of sensor data (CH250 - 261) ispossible
1: No. 1 range
2: No. 2 range
3: No. 3 range
4: No. 4 range

0: No hold
1: Desired value
2: Value 5 sec. before error
Output hold value setting (%FS) 0 - 100
Data for setting, checking by
ENERGY SUPPORT CORP.
0: Not in use.
Auto range setting
1: UseOUT 1 output adjustment
When adjusting output ZERO or
SPAN, sets to this CH.
OUT 2 output adjustment
Output hold setting

170Data issupplied forthe current
selected
range

1
100

1
-

CH
No.
030
031
032
033
034
035
036
037
038
039
040
|

089
090
091
092
093
094

Function
Output range No. 1 span value
Output range No. 2 span value
Output range No. 3 span value
Output range No. 4 span value
Output range No. 1 unit
Output range No. 2 unit
Output range No. 3 unit
Output range No. 4 unit
－
－

143

Linearization table

144

Data for setting, checking by
ENERGY SUPPORT CORP.

183
184

Calibration mode selection

185

Calibration point selection

186

Calibration start

187

Data for setting, checking by
ENERGY SUPPORT CORP.

|

189

0: Not in use
1: ppm2: 2%－－

Calibration point No. 1 standard
gas concentration
Calibration point No. 2 standard
0.00 – 9990.0
gas concentration
Calibration point No. 3 standard
gas concentration
Air point concentration
0.00 – 99.90

142|

1 - 99999*Check the output range unit using
CH034 - 037.

Specific values for each sensor

0: Air 1 point calibration
1: Air point + calibration point No. 1
2: Air point + calibration point No. 1, 2
3: Air point + calibration point No. 1, 2 ,3
0: Air 1 point calibration
1: Air point + calibration point No. 1
2: Air point + calibration point No. 2
3: Air point + calibration point No. 3
0: Default value
1: Calibration start

190

Heater control mode

0: Heater OFF
1: Constant voltage control
2: Constant resistance control 1
3: Constant resistance control 2

191

Heater voltage set value (V)5.00 – 11.00

192

Data for setting, checking by
ENERGY SUPPORT CORP.

|

199

RX-501125-A

500
5000
5
50
1
1
2
2
－
－

Data for setting, checking by
ENERGY SUPPORT CORP.

Data for setting, checking by
ENERGY SUPPORT CORP.

|

Setting Data

18

0.00
0.00
0.00
20.60

See inspection
data

0

0

0

１
(Change notpossible.)
10.00(Change notpossible.)

CH
No.

Function

200

Contact output RY1 function setting

201

Contact output RY2 function setting

202

Contact output RY3 function setting

203

Contact output RY4 function setting

204

Contact output RY1 movement setting

205

Contact output RY2 movement setting

206

Contact output RY3 movement setting

207

Contact output RY4 movement setting

208

Contact input IN1 movement setting

209
210
|

219

Setting Data

Data for setting, checking
ENERGY SUPPORT CORP.

223

Oxygen min. alarm unit

224
|

249
250
251
252
253
254
255
256
257
258
259
260
261
262
|

7
7
7

0

0: NO
1: NC

0
0
1
0

by

222

221

1

0

0: Not in use
1: Air 1 point calibration startContact input IN 2, 3 movement 0: Local range switching
setting
1: Remote range switchingO2 concentration max. alarm
setting value
O2 concentration min. alarm
setting value
Oxygen max. alarm unit

220

0: No contact output
1: Analyzer error
2: Range echo (2 range discrimination)
3: Range echo (discrimination of 3 ranges
or more)4: READY
5: Concentration max. alarm
6: Concentration min. alarm
7: Range echo (3 contacts)

RX-501125-A

0.0 – 9999.0

90.0

0.0 – 9999.0

10.0

0: Not in use.
1: ppm2: %00Data for setting, checking by
ENERGY SUPPORT CORP.
Sensor data 1 standard
concentration (ppm)
Sensor data 2 standard
concentration (ppm)
Sensor data 3 standard
concentration (ppm)
Sensor data 4 standard
concentration (ppm)
Sensor data 5 standard
concentration (ppm)
Sensor data 6 standard
concentration (%)

Sensor data 1 (A)
Sensor data 2 (A)
Sensor data 3 (A)
Sensor data 4 (A)
Sensor data 5 (A)
Sensor data 6 (mA)gas

0.0 – 9990.0

gas

0.0 – 9990.0

gas

0.0 – 9990.0

gas

0.0 – 9990.0

gas

0.0 – 9990.0

gas

0.00 – 99.90

See
inspection
data-999.0 – 999.0-999.0 – 999.0-999.0 – 999.0-999.0 – 999.0-999.0 – 999.0-99.90 – 99.90

－

－

289

19

－

CH
No.

Function

290

Communication setting

291

Bit rate setting

292

Data length setting

293

Parity setting

294

Parity mode setting

295

Stop bit length setting

296|

Positive/negative offset

299

Unit of positive/negative offset|

2:RS-232C
4:RS-232C
0:12001:24002:48003:9600
0:8 bit
1:7 bit0:Even parity
1:Odd parity
0:No check
1:Check used
0:1 bit
1:2 bit

－

297
298

300

Setting Data

Option－-9999～9999
0:Not used
1:ppm
2:%

－

RX-501125-A

－
0
0

－

－

309
310

Data setting change password

311

Storage of default values andreset

0: Data change prohibited
201: Data change possible
204: Default data
0: OFF
1: Reset to factory default values
204:Storage of current setting values

204

0

Caution notices when changing data settings
Do not make changes to CH190 - 191. It will change the heater voltage supplied to thesensor, which could damage the sensor.
Do not operate CH311 so as to store or reset CH of the factory default values(Range, input
and output of contacts, sensor data etc.), except in case of necessity.

20(2) Output Range Switching
The output range switching method can be made from 3 methods: range switching by key
operation, by contact input, or by auto range switching.
Range switching by key operation (Local range switching)
By inputting 0 for CH026 and 0 for CH209, you can change output range 1 - 4 for CH020.
You can select the same range No. as the input data, e.g. if you input "1", you get range
1, and if you input "2", you get range 2.
Because switching of the sensor output detection circuit occurs inside the receiver
for the ppm range and % range, performing ppm measurement in the % range willcause the analyzer display to waver greatly. When performing ppm measurement,
switch to the ppm range.
Range switching using contact input (Remote range switching)
By inputting 0 for CH026 and 1 for CH209, the output range is switched in accordancewith the no-voltage contact input that is input to IN2 and IN3 of the analyzer terminal
block. The contact input and selected range are related as shown below.
Contact Input
Selected Range
IN2-COM1
IN3-COM1
ON

ON

No.1

OFF

ON

No.2

ON

OFF

No.3

OFF

OFF

No.4

Auto range switching
By inputting 1 for CH026, you can make the setting so that the output range switches inaccordance with the measurement value. When 1 is input for CH026, auto range switchingis given priority even if 1 is input to CH026.
When using auto range switching, use all 4 ranges.
ExampleWhen the following ranges are set for the Range No.:
Range No.

Range Setting

1

0～500ppm

20～5000ppm

3

0～5%

4

0～50%

The ranges are selected for each measurement concentration as follows:
Measurement Concentration
Range automatically
When concentration
When concentration
selected
drops
increases
0～450ppm

0～500ppm

1

450～4500ppm(0.45%)

500～5000ppm (0.5%)

2

0.45～4.5%

0.5～5%

3

4.5～50%

5～50%

4

21

When the range switches between the ppm range and % range, switching of thesensor output detection circuit occurs inside the receiver, so deviation occurs
between the detected oxygen output in the ppm range and the detected oxygen
output in the % range.
Accordingly, when indication is stable at about 90% FS in the ppm range, range
switching may occur repeatedly between the ppm range and % range.
(3) Output range setting
The output range can be set as desired up to 4 ranges, setting the range span value for CH030- 033, and setting the unit for CH034 - 037.
For output range No. 1, range span value setting is CH030, unit setting is CH034.
For output range No. 2, range span value setting is CH031, unit setting is CH035.
For output range No. 3, range span value setting is CH032, unit setting is CH036.
For output range No. 4, range span value setting is CH033, unit setting is CH037.
When setting the unit, inputting 0 is “Not in use”, 1 is ppm, and 2 is %.
ExampleTo set 0 - 1000 ppm for output range No. 1, input 1000 for CH030 and 1 for CH035.
The span value for the output range is a minimum of 100 ppm. To set 1000 ppm or lessrequires recalibration using the standard gas.
(4) Gas Calibration
The 0 - 1000 ppm range and above can be used for air 1 point calibration. For the 0 - 1000
ppm range or less, perform 1 - 3 point standard gas calibration in accordance with the usage
condition.
① Air 1 point calibration (0 - 1000 ppm range and above)(a) By operating the ejector close to the actual measuring condition where sintered alloy filter
and activated carbon filter are attached in front of the analyzer, indication is stabilised bysuctioning the air. In actual operation, under the analyzer being attached to the furnace
and inside of the furnace being in air filled condition, the ejector is started and sample
gas flow volume can be adjusted.
(b) Input 0 to CH184 to set the calibration mode to air 1 point calibration.
(c) Input 0 to CH185 to set the calibration point to air point.
(d) Input 1 to CH186 to start calibration.
This procedure performs calibration for ppm - %. The default value of 0 is set for CH184
and CH185. As long as the setting data is not changed, steps (b) and (c) are not required.
By inputting 1 to CH208, steps (b) - (d) are automatically performed by temporarily
shorting between IN1 - COM on the analyzer terminal board.
Because the oxygen concentration of the atmospheric air changes slightly, the accuracyof air 1 point calibration is 2 - 3% FS.

22

Air point + calibration point No. 1(a) Input the standard gas concentration used for calibration to CH090. Use standard gas with
5000 ppm or less.
(b) Input 1 to CH184 to set the calibration mode to air 1 point calibration.
(c) Shut off the ejector, then pump standard gas to the analyzer to stabilize the indication.
(d) Input 1 to CH185 to set the calibration point to No. 1.
(e) Input 1 to CH186 to start calibration.
(f) Induct air into the analyzer to stabilize the indication.
(g) Input 0 to CH185 to set the calibration point to air point.
(h) Input 1 to CH186 to start calibration.
(f) - (h) are for % calibration. For ppm measurement, these are not always necessary.
Air point + calibration point No. 1, 2(a) Input the standard gas concentration used for calibration to CH090 and CH091. Usestandard gas with 5000 ppm or less, and input concentration for CH090 that is less than theCH091 concentration.
(b) Input 2 to CH184 to set the calibration mode to air point + calibration point No. 1, 2.
(c) Shut off the ejector, then pump the standard gas set for CH090 to the analyzer to stabilize
the indication.
(d) Input 1 to CH185 to set the calibration point to No. 1.
(e) Input 1 to CH186 to start calibration. Although error E-55 may occur at this time, continue
with the following procedure.
(f) Pump the standard gas set for CH091 to the analyzer to stabilize the indication.
(g) Input 2 to CH185 to set the calibration point to No. 2.
(h) Input 1 to CH186 to start calibration.
(i) Induct air into the analyzer to stabilize the indication.
(j) Input 0 to CH185 to set the calibration point to air point.
(k) Input 1 to CH186 to start calibration.
(i) - (k) are for % calibration. For ppm measurement, these are not always necessary.

23

Air point + calibration point No. 1, 2, 3(a) Input the standard gas concentration used for calibration to CH090, 091 and 092. Usestandard gas with 5000 ppm or less, and input concentration for CH090 that is less than theCH091 concentration, and CH091 concentration that is less than the CH092 concentration.
(b) Input 3 to CH184 to set the calibration mode to air point + calibration point No. 1, 2, 3.
(c) Shut off the ejector, then pump the standard gas set for CH090 to the analyzer to stabilize
the indication.
(d) Input 1 to CH185 to set the calibration point to No. 1.
(e) Input 1 to CH186 to start calibration. Although error E-55 may occur at this time, continue
with the following procedure.
(f) Pump the standard gas set for CH091 to the analyzer to stabilize the indication.
(g) Input 2 to CH185 to set the calibration point to No. 2.
(h) Input 1 to CH186 to start calibration. Although error E-57 may occur at this time, continue
with the following procedure.
(i) Pump the standard gas set for CH092 to the analyzer to stabilize the indication.
(j) Input 3 to CH185 to set the calibration point to No. 3.
(k) Input 1 to CH186 to start calibration.
(l) Induct air into the analyzer to stabilize the indication.
(m) Input 0 to CH185 to set the calibration point to air point.
(n) Input 1 to CH186 to start calibration.
(l) - (n) are for % calibration. For ppm measurement, these are not always necessary.
4-5

Operation for when an Error Occurs
If an error code occurs, the error code is displayed on Display 1, and the O2 Vol display stops
displaying the normal value. If this occurs, follow the steps explained in 5-2 Troubleshooting
on page 29. After you clear the error contents, press the
key or turn OFF the analyzer
power supply (power supply reset) to restore the measurement condition.

24

4-6

Applied Operations(1) Primary delay time settingWith the data value input to CH016 (unit: seconds), primary delay can be applied to theconcentration output signal. The setting range is 0 - 99 seconds.
(2) Output hold setting
If an error occurs for the sensor or receiver while CH023 is selected, this sets how theconcentration output signal is to be held. The relationship between the input data and holdcontents is shown in the table below.
Input Data0
1
2

Hold Function
Hold not applied when error occurs in sensor or
receiver.
Hold applied using the value set for CH024 whensensor or receiver error occurs.
Hold applied using the value 5 seconds before theerror occurred in the sensor or receiver.

(3) Output hold value setting
If a sensor or receiver error occurs during warming up (receiver countdown display) or when
1 is input to CH023, hold is applied to the concentration output signal using the data set forCH024 (unit:% FS). For example, to hold current output of 4 - 20 mA at 12mA, the setting is
50% FS.
(4) Current output adjustment
Connect an ammeter to check 4 - 20 mA+ and 4 - 20 mA- on the analyzer terminal board.
When CHO27 is called up, the display shows "cAL 1".
ENT key, 0 is displayed on display 1. Each time you press
When you press thethekey, display 1 can be switched to 0 and 100. When 0 is displayed, output
ZERO adjustment is possible, and when 100 is displayed, output SPAN adjustment ispossible using the following procedure.
The output value can be increased using the
key when display 1 indicates 0 or
100, and reduced using the
key. Perform adjustment while using the ammeter tocheck the output.
ENT key toWhen you have finished ZERO and SPAN adjustment in steps , press thereturn to the CH setting mode.

25

(5) Voltage output adjustment
Connect a voltmeter to check 0 - 5 V+ and 0 - 5 V- on the analyzer terminal board.
When CHO28 is called up, the display shows "cAL 2".
ENT
When you press thekey, 0 is displayed on display 1. Each time you press
thekey, display 1 can be switched to 0 and 100. When 0 is displayed, output
ZERO adjustment is possible, and when 100 is displayed, output SPAN adjustment ispossible using the following procedure.
The output value can be increased using the
key when display 1 indicates 0 or
100, and reduced using the
key. Perform adjustment while using the voltmeter tocheck the output.
When you have finished ZERO and SPAN adjustment in steps, pressthe ENT key to return to the CH setting mode.
(6) Concentration alarm setting
Set the concentration max. alarm on CH220, and set the setting value unit on CH222.
Set the concentration min. alarm on CH221, and set the setting value unit on CH223.
When setting the unit, inputting 0 is "Not in use", 1 is ppm, and 2 is %.
To output the concentration alarm contact output, set the concentration warning for RY1 - 4 in
4-6 Applied Operations (9) on page 28.
(7) Positive/negative Offset
This function is used to add/subtract a certain value to/from the actual indication of gas
concentration for display and output purposes.
①Enter the value of addition or subtraction in CH298.
The setting range is from -9999 to +9999.
Use thekey to switch between positive (+) and negative (-).
②Select the unit of the value entered in ①.
[0: Not used, 1: ppm, 2: %]Note)・For calibration, enter “0(Not used)” for CH299.
・ When the positive/negative offset is applied, all the software functions such asconcentration alarm, emergency hold, or auto-range will be executed based on theoffset value.
(8) Storage of default values and restoration function
Factory default values and current setting values are to be stored.
Storage and reset are applied in one lump for all data regarding ranges, contact input andoutput, calibration data, sensor data, upper and lower abnormality of concentration.
Individual storage and reset is not possible.
① Reset to default values
・Enter “1” to CH311 and restore default values with “ENT” key.
② Storage of current setting values
・Enter “204” to CH311 and store current setting data with “ENT” key.
Note) In case of storing setting values, original factory default data are rewritten by current
setting values, therefore if relevant data are stored under changed condition from default
values, it will be impossible to restore to factory default data again.

26

(9) Contact output (RY1 - 4) setting
The contact output contents are set using CH200 - 203, and the contact output movement
settings are set using CH204 - 207.
RY1 contact output functions are set at CH200, and the contact output operation settings are
set using CH204.
RY2 contact output functions are set at CH201, and the contact output operation settings are
set using CH205.
RY3 contact output functions are set at CH202, and the contact output operation settings are
set using CH206.
RY4 contact output functions are set at CH203, and the contact output operation settings are
set using CH207.
When 0 is input for the movement setting, the No. is set, and when 1 is set, NC is set. See thetable below for the difference between the contact output functions and the contact operation
No. and NC settings.
CH
200 - 203
input data
0
1

2

3

Contact output functions
No contact output
During warming up,
measurement
Analyzer error
During analyzer error
When No. 1 (NO. 3)
Range echorange is selected.
(2 range
When No. 2 (NO. 4)
discrimination)
range is selected.
Range echo
(discriminationof 3 ranges or
more)

4

READY

5

Concentration
max. alarm

6

7

Concentration
min. alarm

Range echo
(3 contacts)

No. 1 range is selected
No. 2 range is selected
No. 3 range is selected
No. 4 range is selected

Contact output operation
CH 204 - 207 input data
0 (NO) setting
1 (NC) setting
OFF
ON

RY
(N)
ON
OFF
ON
OFF

During warming up
After warming up
During warming up
Concentration higher
than set value
Concentration lower
than set value
During warming up
Concentration higher
than set value
Concentration lower
than set value

OFF

ON

ON

OFF

ON

OFF

OFF

ON

RY
(N+1)
ON
ON
OFF
OFF
ON
OFF
OFF

RY
(N)
OFF
ON
OFF
ON

RY
(N+1)
OFF
OFF
ON
ON
OFF
ON
ON

ON

OFF

OFF

ON

OFF

ON

OFF

ON

ON

OFF

RY2

RY3

RY4

RY2

RY3

RY4

ON

ON

OFF

OFF

OFF

ON

OFF

OFF

ON

ON

ON

OFF

No. 3 range is selected

ON

OFF

ON

OFF

ON

OFF

No. 4 range is selected

OFF

ON

ON

ON

OFF

OFF

No. 1 range is selected
No. 2 range is selected

When using range echo with discrimination of 3 ranges or more, it is necessary to use 2
adjacent contact outputs, e.g. RY1, RY2.
For the wiring to RY, see the wiring circuit example on page 12.

27

(10) Setting the data setting change password
By setting 0 for CH310, changing the setting data can be prohibited. Setting 201 for CH310
makes it possible to change the data.

5.

Maintenance
The following maintenance and inspection procedures are important in order to maintain normal
functioning and accurate measurement. Make sure you thoroughly understand the procedure before
performing maintenance.
Sensor replacement cautions• To prevent gas intoxication or oxygen deficiency, before you replace the sensor
always stop the supply of sample gas.
• There is a danger of getting burned, so before you replace the sensor turn off thepower and allow the analyzer to cool down first. If you must work while the analyzer
is still hot, wear heat resistant gloves and work carefully to avoid burns.

5-1

Daily and Periodic Inspection
Sample gas flowrate check

Frequency Once or more per week.
MethodCheck the sample gas flow meter float.
Once or more per month.

Frequency (Periodic calibration is recommended to suit the operating

Gas calibration

conditions.)
MethodSensorreplacement

Perform gas calibration in accordance with section 4-4 (4).

Frequency 2 years
MethodReplace when necessary. (See 5-2 Troubleshooting.)
See section 5-4 for the replacement method.

28

5-2

Troubleshooting
Phenomenon

Cause

Countermeasure

0 is input for CH310.
Unable to change
data.

Analyzer output,
display value does
not change.

Analyzer output,
display value error

Analyzer output,
display value is zero

Analyzer output anddisplay value do not
match

Analyzer output anddisplay value do not
match

Slow response

Remarks

Input 201 for CH310.
Request repair byReceiver problem
ENERGY SUPPORTCORP.
Turn power OFF, thenTake countermeasures
ON again after 10
Analyzer error occurringin accordance withseconds. Or pusherror code.
key to reset.
RequestrepairbyReceiver problem
ENERGYSUPPORT
CORP.
Sample gas flow rate is Readjust sample gas flow Adjustment to stipulated
rate.
flow volume
outside range.
(0.5L/min)
Check for leaks, tighten
Sample gas pipe leaksample gas pipe joints.
Pipe leak inside analyzer Tighten joints, etc.
Gas calibration error
Perform gas calibration
Sensor deterioration
Replace the sensor
Sample gas flow rate is Readjust sample gas flow Adjustment to stipulated
rate
flow volume
outside range(0.5L/min)
Flammable gas included Eliminate flammable gas
in sample gas
from sample gas
Sensor deterioration
Replace the sensor
Perform output
Output adjustment isadjustment for CH027,
inaccurate
028
Change output range(CH020, 026). Check
Output range is different.
output range setting(CH030 - 037) and reset.
Request repair by
ENERGY SUPPORT
Receiver problem
CORP.
N2 purge of sampling
Residual air effect inside
pipe, pipes inside
sampling pipe, analyzer
analyzer
Sample gas flow rate is Readjust sample gas flow Adjustment to stipulated
rate
flow volume
insufficient.
(0.5L/min)
Blockage of sample gas Clean pipe or install new
pipe
pipe
Primary
delay
time Check CH016 data, set it
setting value is too large to 0 sec(CH016)29

ErrorCode

Description

Possible cause

E-01
E-02
E-03

Abnormality in ROM,
RAM, and/or EEPROM

Receiver abnormality, or
temporary malfunction due
to external noise

E-04
E-05
E-06
E-07
E-20
E-08
E-09
E-10
E-11
E-12
E-13

Heater current excessively
highHeater current excessively
low
Heater voltage excessively
highHeater voltage excessively
low
Heater temperature nothigh enoughVS voltage excessivelyhighVS voltage excessively
low
IP current excessivelyhighIP current excessively low
VP voltage excessivelyhigh
VP voltage excessively
low

Sensor heater abnormality
Heater wiring error
Receiver abnormality

Sensor heater abnormality

Receiver abnormality

Heater terminals (S+, S-)
not closed

Defective contact in wiring
between S+ and S-

E-21

Data out of the specified
range

Data entry error

Sensor abnormality

E-60

E-63

Calibration error

Turn off the power and then, after 10 seconds,
turn it back on.
Press the DOT
key, or turn off the power
and then, after 10 seconds, turn it back on.
To clear the error display, press the DOT
key after the cause of the error has been
eliminated (e.g. after a sensor has been replaced).
Check the heater resistance (normally about 3Ω).
Check the heater voltage (normally about 10.5V).

Press the DOT
key, or turn off the power
and then, after 10 seconds, turn it back on.
To clear the error display, press the DOT
key after the cause of the error has been
eliminated (e.g. after a sensor has been replaced).

Heater wiring error

E-14

E-35
～48

ActionCalibration gas
concentration setting error

All output ranges are “Notused”.

Range entry error“Not used” range isselected.

Range entry error or range
selection error

Check the VS voltage (normally about 450 mV).
Check the IP current （normally ±10mA）.
Check the VP voltage (normally ±5V).

Press the DOT
key to clear the error
display.
Check the wiring and return to normal condition.
Press the DOT
key to clear the error
display.
Enter data within the specified range.
Press the DOT
key to clear the error
display.
Make sure that the standard gas concentration
setting value is correct and that the calibration
gas flow rate is normal.
Then perform the calibration again.
Check the IP current with N2 (normally ±0.5mA).
Check the following value.
(IPAir－IPN2／21＝ka)（normally 0.1～0.5）
Press the DOT
key to clear the error
display.
Change any one of the output ranges (No.1～4)
into other than “Not used”.
Press the DOT
key to clear the error
display.
Select a range other than “Not used”.

The O2 analyzer needs to be sent to the maker for repair if all the actions listed above
should fail.

30

5-3

Supply Parts List
Part Name
Oxygen sensor

5-4Part No.

Remarks
Sample gas flow rate
0.5L/min.

RX-731004

Sensor Replacement Procedure
Replace the sensor using the following procedure.
(1) Turn the analyzer power OFF, then remove the case cover.
(2) Disconnect the connector connecting the sensor to the receiver.
(3) The sensor is screwed into the cell support bracket, so remove the sensor using a spanner
applied to the hexagonal part of the sensor (22 mm across opposite sides).
(4) Screw the new sensor into the cell support bracket and connect the connector to thereceiver. Do not forget to install the sensor packing.
(5) Install the case cover, then turn the analyzer power ON.
(6) After sensor warming up is finished, CH250 is automatically selected when you input 1
to CH019. The sensor is supplied with the data, so the data is input from CH250 to CH261.
When 1 has been input to CH019, pressing the
key after the data is input makes
ENT
continuous input possible from CH250 to CH261. There is no need to reset the CH. Input
is possible using normal key operation.
(7) Performing air 1 point calibration makes it possible to perform measurement in the 0 1000 ppm range or above. If using the 0 - 1000 ppm or less range, perform calibration
using standard gas. For the gas calibration method, see page 22, 4-4 Procedure During
Operation, (4) Gas Calibration.

31

6. Reference Material
6-1Standard Specifications
Model
SH-204-AW
Measurement Principle
Zirconia limiting current method
Sampling system
Ejector suction system
Measurement Range
RX-501125-A:0 - 500, 5,000 ppm O2, 0 - 5, 50% O2
OutputDC 4 - 20 mA (non-insulated output, load resistance 600  or less)
DC 0 - 5 V (non-insulated output, load resistance 10 K or above)
Repeatability
1%FS
Linearity
5%FS
Drift
2%FS/WEEK
Response Time
30 sec. or less (0 - 1,000 ppm range, 90% response for calibration
gas switching)
Ambient Temperature
0 - 45ºC
Humidity
90% RH or lessPower
AC100~240V10% 50/60Hz
Sensor Heater voltage
DC10.0V
Sample Gas Flow
0.5±0.1L/min
Sample Gas Temperature 0 - 50ºC
Sample Gas Composition Must not include flammable gases.
Must not include corrosive gases.
Condensation must not occur within the ambient temperature
range.
The dust quantity must be 1 mg/Nm3 or less.
NOTE: Inclusion of corrosive gases (F, HF, CL2, HCL, SO2, H2S,
etc.) or poisonous materials (Si, Pb, P, Zn, Sn, As, etc.)
can cause sensor deterioration in a short time. In
particular, when silicone materials (in paints, moldrelease agents, packing, piping materials, etc.) are heated,
Si may be easily generated in large amounts. Accordingly,
when starting up a newly installed furnace or one just
repaired, remove the sensor first and reinstall it after you
have heated up the furnace sufficiently. Also periodicallyexchange the filter (activated charcoal, etc.) used toeliminate corrosive gases and poisonous materials inaccordance with its usage severity.
Installation Conditions
When you install the oxygen analyzer to the measurement object,make sure the installation location fulfils the following conditions
to avoid damaging the analyzer and causing mis-operation.
• There is little mechanical vibration.
• It is not affected by corrosive gases (F, HF, CL2, HCL, SO2, H2S,
etc.), and it does not interfere with maintenance personnel.
• Condensation does not occur due to sudden temperaturefluctuations.
• It is not affected by direct heat radiation.
• It is affected little by noise.
• There is little humidity and dust.
• The ambient temperature is between 0º and 45ºC.

32

The contents of this manual are subject to change without notice for improvement.
For inquiries regarding product handling, please contact us or our distributors.
Inquiry form URL：https://www.energys.co.jp/english/inq/all.php
ENERGY SUPPORT CORPORATION
1, Aza Kamikobarii, Inuyama, Aichi 484-8505 Japan