Fuji Electric ZRF User manual

Instruction Manual
Fuji Electric Co.,Ltd. INZ-TN1ZRFb-E
NON-DISPERSION TYPE
INFRARED GAS ANALYZER
TYPE: ZRF
INFRARED GAS ANALYZER
NO
vol%
ppm
vol%
ppm
RANGE
RANGE
AUTO CAL
HOLD
SPAN
CAL
SPAN
ZERO
ENT
COMP
FUNC
∧
＞
MEAS
MEAS
RMTRANGE
SO
2
vol%
ppm
RANGE
O
2
POWER
ON
OFF

i
PREFACE
Congratulations on your purchase of Fuji’s Infrared Gas Analyzer (Type: ZRF).
• Before using, be sure to read this instruction manual carefully to ensure correct installation,
operation and maintenance of the infrared gas analyzer. Note that incorrect handling may lead
to trouble or personal injury.
• The specifications of this infrared gas analyzer are subject to change for improvement without
prior notice.
• Do not attempt to modify the infrared gas analyzer without permission. Fuji is not responsible
for any trouble caused by modification without permission.
• This instruction manual should always be kept on hand by the user.
•
After reading, be sure to keep this manual in a place where it can easily be seen by the operator.
• Make sure that this manual is presented to the final user.
NOTICE
• It is prohibited to transfer part or all of this manual without Fuji
Electric’s permission in written format.
• Description in this manual will be changed without prior notice
for further improvement.
© Fuji Electric Co., Ltd., 1990
Issued in Sept., 1990
Rev. 1st ed. in July, 1993
Rev. 2nd ed. in Apr., 1997
Delivereditems
Analyzer main frame .................................................... 1
Fuse (2A) ...................................................................... 2
Cell assembling tool (only for block cell) .................... 1
Instruction manual ........................................................ 1
Test report ..................................................................... 1
Mounting fixture (in case of panel flush mount) .......... 4
Manufacturer : Fuji Electric Co., Ltd.
Type : Described in Fuji Electric’s company nameplate on main frame
Date of manufacture : Described in Fuji Electric’s company nameplate on main frame
Product nationality : Japan

ii
First of all, read this “Safety Precaution” carefully, and then use the analyzer in the correct way.
• The cautionary descriptions listed here contain important information about safety, so they should
always be observed. Those safety precautions are ranked 2 levels; “DANGER” and “CAUTION”.
Warning & Symbol Meaning
Wrong handling may cause a dangerous situation, in which there
is a risk of death or heavy injury.
Wrong handling may invite a dangerous situation, in which there is
a possibility of medium-level trouble or slight injury or only physical
damage is predictable. .
Caution on installation and transport of gas analyzer
DANGER:This unit is not an explosion-proof type. Do not use it in a place
with explosive gases to prevent explosion, fire or other serious
accidents.
CAUTION:• For installation, observe the rule on it given in the instruction
manual and select a place where the weight of gas analyzer can
be endured.
Installation at an unsuited place may cause turnover or fall and
there is a risk of injury.
• For lifting the gas analyzer, be sure to wear protective gloves.
Bare hands may invite an injury. .
• Before transport, fix the casing so that it will not open. Other-
wise, the casing may be separated and fall to cause an injury.
• The gas analyzer is heavy. It should be transported carefully.
Otherwise, body may be damaged or injured.
• During installation work, care should be taken to keep the unit
free from entry of cable chips or other foreign objects. Other-
wise, it may cause fire, trouble or malfunction of the unit.
SAFETY PRECAUTION
DANGER:
CAUTION:

iii
Caution on piping
DANGER: In piping, the following precautions should be observed. Wrong
piping may cause gas leakage.
If the leaking gas contains a toxic component, there is a risk of
serious accident being induced.
Also, if combustible gas is contained, there is a danger of explo-
sion, fire or the like occurring.
• Connect pipes correctly referring to the instruction manual.
• Exhaust should be led outdoors so that it will not remain in the
locker and installation room.
• Exhaust from the analyzer should be relieved in the atmospheric
air in order that an unnecessary pressure will not be applied to
the analyzer. Otherwise, any pipe in the analyzer may be dis-
connected to cause gas leakage.
• For piping, use a pipe and a pressure reducing valve to which oil
and grease are not adhering. If such a material is adhering, a
fire or the like accident may be caused.
Caution on wiring
CAUTION: • Wiring is allowed only when all power supplies are turned off.
This is required for preventing a shock hazard.
• Enforce construction of specified grounding wire by all means. If
the specified grounding construction is neglected, a shock haz-
ard or fault may be caused.
• Wires should be the proper one meeting the ratings of this instru-
ment. If using a wire which cannot endure the ratings, a fire may
occur.
• Use power source that matches the rating of the unit. Use of
power source out of rating may cause fire.
Caution on use
DANGER: • When handling the standard gas such as calibration gas, read
the instruction manual of the standard gas carefully and use the
gas correctly.
CAUTION: • Avoid continuous operation with the casing drawn out.
• During operation, avoid opening the casing and touching the
internal parts. Otherwise, you may suffer a burn or shock haz-
ard.

iv
Others
CAUTION: • If the cause of any fault cannot be determined despite reference
to the instruction manual, be sure to contact your dealer or Fuji
Electric’s technician in charge of adjustment. If the instrument is
disassembled carelessly, you may have a shock hazard or injury.
• Do not use a replacement part other than specified by the instru-
ment maker. Otherwise, adequate performance will not be
provided. Besides, an accident or fault may be caused.
• Replacement parts such as a maintenance part should be dis-
posed of as incombustibles.
Caution on maintenance and check
DANGER: • When doors are open during maintenance or inspection for
adjusting the optical system, etc., be sure to purge sufficiently
the inside of the gas analyzer as well as the measuring gas line
with nitrogen or air, in order to prevent poisoning, fire or explo-
sion due to gas leaks.
CAUTION: • Before working, take off a wrist watch, finger ring or the like
metallic accessories. And never touch the instrument with a wet
hand, Otherwise, you will have a shock hazard.
• If the fuse is blown, eliminate the cause, and then replace it with
the one of the same capacity and type as before. Otherwise,
shock hazard or fault may be caused.

v
CAUTIONS ON USE
Selectasuitableinstallationplace.
Install the unit in a place with normal temperature and humidity, free from excessive change in
temperature and from heat radiation and direct sunlight.
This unit is designed for indoor installation. When it is installed outdoors, choose a place where it
is not exposed to wind and rain. Be sure to use a proper case cover.
Donotinstalltheunitinaplace withvibrations.
Cleaningofinstrument
Do not use solvents such as benzine, thinner, etc., as it damages the case.
Usetheunit ina placewith goodenvironment.
The unit should be used in a place free from corrosive or combustible gases.
Becarefulwithelectricshocks.
The unit should be earthed to avoid electric shocks.
Keyoperation
Do not use any object with a sharp tip when operating the function keys on the instrument panel.

vi
CONTENTS
PREFACE........................................................................................................................................ i
SAFETY PRECAUTION...............................................................................................................ii
CAUTIONS ON USE..................................................................................................................... v
1. OUTLINE ............................................................................................................................... 1
2. NAME AND DESCRIPTION OF EACH COMPONENT .................................................... 2
2.1 Name and description of each component on case .................................................................... 2
2.2 Name and description of components on indication/operation panel ........................................ 4
3. INSTALLATION ................................................................................................................... 6
3.1 Mounting method....................................................................................................................... 6
3.2 Piping method ............................................................................................................................ 7
3.3 Sampling .................................................................................................................................... 8
3.4 Wiring method ......................................................................................................................... 10
4. OPERATION ........................................................................................................................ 15
4.1 Operation procedure................................................................................................................. 15
4.2 Preparation for operation ......................................................................................................... 16
4.3 Start of measurement ............................................................................................................... 17
4.4 Shutdown ................................................................................................................................. 17
5. OPERATION OF INDICATION/OPERATION PANEL.................................................... 18
5.1 Outline of indication/operation panel ...................................................................................... 18
5.2 General operation..................................................................................................................... 20
①Calibration concentration setting (when not using Zirconia O2analyzer)......................... 22
②Calibration concentration setting (when using Zirconia O2analyzer)............................... 24
③Alarm value setting (option) .............................................................................................. 27
④Hold setting........................................................................................................................ 29
⑤Remote range setting (option)............................................................................................ 31
⑥Auto calibration (option) ................................................................................................... 32
⑦Key lock ON/OFF Setting ................................................................................................. 40
⑧Zero calibration.................................................................................................................. 41
⑨Span calibration ................................................................................................................. 42
6. MAINTENANCE MODE .................................................................................................... 43
6.1 Response time setting .............................................................................................................. 44
6.2 O2conversion reference value setting...................................................................................... 44
6.3 Optical balance adjustment ...................................................................................................... 45
6.4 Interference compensation coefficient setting ......................................................................... 46
6.5 Indication and clearing of integrated drift value...................................................................... 47
7. MAINTENANCE ................................................................................................................. 48
7.1 Routine maintenance................................................................................................................ 48
7.2 Periodical inspection ................................................................................................................ 49
8. ERROR CODES AND REMEDIES .................................................................................... 56

1
1. OUTLINE
This is a multi-function, easy-to-operate non-dispersion type infrared gas analyzer for measuring the
concentration of gases such as NO, SO2, CO2and CO. It utilizes a highly reputed mass flow type detector
featuring high sensitivity and reliability, plus a microprocessor for easy operation.
INFRARED GAS ANALYZER
NO
vol%
ppm
vol%
ppm
RANGE
RANGE
AUTO CAL
HOLD
SPAN
CAL
SPAN
ZERO
ENT
COMP
FUNC
∧
＞
MEAS
MEAS
RMTRANGE
SO
2
vol%
ppm
RANGE
O
2
POWER
ON
OFF
Self diagnosis
function Zero point
and span easily
adjustable by
key operation
Remote range,
range detect
function
(option)
Auto
calibration
function
(option) Upper/lower
limit alarm
function
(option)
Output hold
function

2
2.1 Name and description of each component on case
2. NAME AND DESCRIPTION OF EACH COMPONENT
INFRARED GAS ANALYZER
NO
vol%
ppm
vol%
ppm
RANGE
RANGE
AUTO CAL
HOLD
SPAN
CAL
SPAN
ZERO
ENT
COMP
FUNC
∧
＞
MEAS
MEAS
RMT RANGE
SO
2
vol%
ppm
RANGE
O
2
POWER
ON
OFF
Infrared
Type
Range
Output DC mA
Power Supply AC v 50/60Hz
Ser No. Fuji Electric Co., Ltd Japan
Mid
Gas Analyzer
SUMPLE GAS
INLET
COMP1 COMP2 O2 AUTO CAL
OUTLET PLUG
①Grip
⑮Power terminal
②Knurled knob
③Power switch
④Indication/operation panel
⑪COMP1 (1st component)
input/output terminal
*Used for differential
flow system only.
⑫COMP2 (2nd component)
input/output terminal
⑬O2input/output terminal
(option)
⑭AUTO CAL input/output
terminal (option)
⑥Sample gas inlet
⑦Sample gas outlet
⑧Reference gas inlet
⑩Purge gas inlet
Front panel
Rear panel
⑨Reference gas outlet
* *

3
Description
Used to pull out the interior (base).
Used to fasten the instrument and case.
Turn ON to supply power to the internal components (excluding the pump).
After 3 or 4 seconds the LED indicator lights up. (Refer to 4.2 for pump
power supply.)
Indicates gas concentration, measuring range, etc., and contains keys neces-
sary for routine operation and settings. Refer to section 5 for operating
method.
Used to check sample gas flow rate. Float rises when sample gas flows.
Connect gas to be measured here.
Connect pipe for discharging measured gas here.
Connect reference gas here in case of differential flow system.
Connect pipe here for discharging reference gas.
Connect pipe for purge gas here.
Used for 1st component of standard type and sample switching type or flow
differential type.
Input/output terminal for 2nd component of two-component analyzer.
Input/output terminal for O2analyzer.
Input/output terminal for auto calibration function.
Supply power to the analyzer.
Part name
①Grip
②Knurled knob
③Power switch
④Indication/operation panel
⑤Flowmeter (option)
⑥Sample gas inlet
⑦Sample gas outlet
⑧Reference gas inlet
⑨Reference gas outlet
⑩Purge gas inlet
⑪COMP1 (1st component)
input/output terminal
⑫COMP2 (2nd component)
input/output terminal
⑬O2input/output terminal
(option)
⑭AUTO CAL input/output
terminal (option)
⑮Power terminals

4
vol%
ppm
RANGE
SU
MEAS CAL SET ALH SET HOLD RMT RANGE AUTO CAL
TU TH
MO WE FR
SA
NO
vol%
ppm
RANGE
2
vol%
RANGE
O
2
SO
FUNC
COMP
ENT ZERO SPAN CAL
＞ ∧
4 Day indication
5 Sub indication
6 Range changeover key
3 Unit indication lamp
2 Main indication
1 Component indication
7 Function indicator lamp
8 Function key
10 Digit shift key
11 Numeric input key
13 Zero calibration key
14 Span calibration key
15 Calibration start key
12 ENT key
9 Component selector key
(Three components of NO, SO 2 and O 2 are
indicated in this figure.)
2.2 Name and description of components on indication/operation panel

5
Description
Indicates kind of gas measured.
Indicates measured concentration. Also indicates various setpoints for alarm
function, auto calibration function (option), etc.
Indicates unit of measured gas concentration.
Indicates current day or day of starting by means of bar in auto calibration
(option) setting mode.
Indication SU MO TU WE TH FR SA
Day Sun Mon Tue Wed Thu Fri Sat
Indicates measuring range, error code, various setpoints, etc.
Used when changing the range. High range is set when pressing and low
range is set when pressing .
Relevant lamp lights up when following functions are set.
MEAS : Lights up in measuring status.
CAL SET : Flashes in calibration concentration setting mode.
ALM SET : Flashes in alarm setting mode.
HOLD : Flashes in hold setting mode or lights steadily while hold
function is activated.
RMT RANGE : Flashes in remote range setting mode or lights steadily while
remote range function is activated.
AUTO CAL : Flashes in auto calibration setting mode or lights steadily
while auto calibration function is activated.
Setting mode is changed at each press of this key. (Refer to section 5.)
Set component is changed for each setting mode or span adjustment.
Shift is made from highest toward lowest digit at each press of this key.
Selected digit is incremented at each press of this key.
By pressing this key after setting, the set contents are memorized and become
valid.
Used for zero point calibration. (Lamp flashes in zero calibration mode.)
Used for span calibration. (Lamp flashes in span calibration mode.)
Start key for manual calibration.
Zero is calibrated by pressing ZERO and CAL keys.
Span is calibrated by pressing SPAN and CAL keys. (CAL lamp lights
steadily during calibration.)
Part name
①Component indication
②Main indication
③Unit indication lamp
④Day indication
⑤Sub indication
⑥Range changeover key
⑦Function indicator lamp
⑧Function key
⑨Component selector key
⑩Digit shift key
⑪Numeric input key
⑫ENT key
⑬Zero calibration key
⑭Span calibration key
⑮Calibration start key

6
3. INSTALLATION
•This unit is not explosion-proof type. Do not use it in a place with explosive gases to
prevent explosion, fire or other serious accidents.
•This unit is heavy and should be mounted securely to prevent it from falling.
•
Before mounting the unit, make sure that all the knobs on the front of the unit are fixed firmly.
(1) Mounting method
Mount so that the front panel is vertical.
(2) Caution on installation
70% or more of the instrument weight should be supported by the case bottom.
(When mounting on a panel or 19 inch rack, attach a support under the rear of the case.)
3.1 Mounting method
The following three methods are usable for mounting the analyzer.
CAUTIONS
DANGER
(Unit: mm)
Type Outer dimensions of analyzer Mounting dimensions Mounting method
Panel
mounting
Desk top
type
ZRF
443
483
443
443
220 233
220
220
438 or more
465
146
M6
Support
240 or
more
240 or
more
Support
Mounting
bracket
436
+2
–0
213
+2 –0
<Panel output dimensions>
19 inch
rack
mounting
ZRF
ZRF

7
3.2 Piping method
(1) Piping procedure
Connect pipes to the gas inlets and outlets located at the top left on the analyzer rear.
Use anticorrosive tubes made of Teflon, stainless steel, polyethylene or the like for connecting the
analyzer and sampling system. Avoid using rubber or soft vinyl tubes even if there is no worry about
corrosion. Improper piping material may cause inaccurate indication due to adsorption of gas.
The pipe connections are Rc1/4 (PT1/4) internal thread. And the pipes should be kept as short as
possible to quicken the response. A suitable inner diameter is about 4mm. Note that dust entering
the analyzer may cause a malfunction, so be sure to use clean pipes and joints.
Carry out gas piping as follows.
•Use clean pipes of which inside should not be stained with deposits of oil or fat.
•Piping joints must be tightened firmly to avoid gas leakage.
•Exhaust gas should be discharged to an outdoor safe place to prevent it from staying in the
sampling device and indoors.
•Exhaust from the analyzer should be relieved at the atmospheric pressure in order that an
unnecessary pressure will not be applied to the analyzer. Otherwise, any pipe in the
analyzer may be disconnected to cause gas leakage.
DANGER
Purge gas inlet :
Connect purge gas pipe here.
Reference gas outlet :
Connect pipe here for discharging reference gas.
Reference gas inlet :
Connect reference gas here in case of flow differential system.
Sample gas outlet :
Connect pipe here for discharging measured gas.
Sample gas inlet :
Connect gas to be measured here.

8
(2) Piping diagram
Shown next is an example of the configuration for measuring three components. (When using
Zirconia O2analyzer)
Gas analyzer
(ZRF)
Sample gas outletArrange so that sample ga
outlet is at atmospheric pr
e
Sample gas
Sample gas inlet
Flow meter
Change
-over
valve
O
2 NO SO
2
(Span calibration gas)
Air
(Zero calibration gas)
3.3 Sampling
3.3.1 Sample gas condition
(1) Remove all dust included in sample gas by means of a filter. Use a filter capable of eliminating
dust particles of 0.3µat the final stage.
(2) The dew point of sample gas must be lower than the ambient temperature to prevent accumula-
tion of drain inside the analyzer. If water vapor is included in the sample gas, then feed the gas
through a dehumidifier to lower the dew point to around 0°C.
(3) If SO3mist is included in sample gas, then use a mist filter, cooler etc. to exclude the mist. The
same applies if other kinds of mist are included.
(4) Note that if strongly corrosive gas such as Cl2, F2or HCris included in sample gas in a large
amount, it will shorten the service life of the analyzer.
(5) The sample gas temperature should range from 0 to 50°C. Be careful not to introduce a high
temperature gas directly into the analyzer.
3.3.2 Sample gas flow rate
The sample gas flow rate should be as follows.
Provide a flowmeter as shown in the preceding diagram to measure the flow rate.
Standard type 0.5r±0.25r/minute
Sample switching type (1r+1r)±0.1r/minute (sample gas+reference gas)
Flow differential type (0.5r+ 0.5r)±0.25r/minute (sample gas +reference gas)

9
3.3.3 Preparation of standard gas
Prepare standard gas for zero point and span point calibration.
Zero gas N2gas
Span gas Gas with concentration of 80% or more of full scale for each component
(Span gas in measuring method is gas with concentration of 90% or more of full scale.)
When using a Zirconia O2analyzer, use air for zero gas.
Zero gas Air (O2 analyser span gas in measuring method) Note)
Span gas 1 to 2% O2 (O2 analyser span gas in measuring method)
Gas with concentration of 80% or more of full scale for other than Zirconia O2ana-
lyzer.
(Span gas in measuring method is gas with concentration of 90% or more of full scale.)
Note: When calibrating the low and high ranges of Zirconia type O2analyzer, use 9 to 10% O2/N2
for the low range, and air for the high range.
3.3.4 Analyzer interior purging
Although purging of the analyzer interior is normally unnecessary, it should be considered in the
following cases.
(1) When combustible gas is included in the measured gas
(2) When corrosive gas is included in the atmosphere at the installation site.
(3) When the same gas as the measured components is included in the atmosphere at the installa-
tion site.
In such cases, purge the analyzer interior with instrumentation air or N2. The flow rate for purging
should be about 1r/minute.
And dust or mist should be completely eliminated from the gas for purging.
3.3.5 Pressure at sample gas outlet
Arrange so that the sample gas outlet is at atmospheric pressure.

10
3.4 Wiring method
: Turn OFF all the power before starting a wiring work to prevent a risk of electric
shocks.
: Be sure to enforce construction of specified grounding.
The external terminals are provided on the rear of the instrument.
Carry out wiring to each terminal according to the figure. Terminal screws are M3.5 (but power
terminals are M4).
Use shielded wires for the output signals to suppress the influence of external noise.
CAUTIONS
3.4.1 Power terminals
The power terminals are arranged as shown in the figure.
Connect the specified power supply to the terminals and
connect a grounding wire to the ground terminal.
The grounding should be made securely.
Use solderless terminals (for M4) for connection to the
terminals.
When noise generating source is located nearby
Avoid installing this analyzer near an electrical appa-
ratus which produces power source noise. (Such as
high frequency furnace, electric welder, etc.) If use of
the analyzer near such an apparatus is unavoidable,
then keep the power lines separate to avoid noise.
If noise from a relay, solenoid valve or the like enters
the power source, then attach a varistor or a spark
killer to the noise source as shown in the figure.
Note that attaching the varistor or spark killer away
from the noise source will be ineffective.
ZRF
power supply
Varister or spark killer
Close connection
Noise
generating
source
Grounding wire
Power supply
ESource
Power terminals (see 3.4.1)
Auto CAL input /output terminal (option) (see 3.4.5)
O
2 input/output terminal (option) (see 3.4.4)
COMP2 (2nd component) input/output terminal (see 3.4.3)
COMP1 (1st component) input/output terminal (see 3.4.2)

11
3.4.2 COMP 1 (1st component) input/output terminal
This output terminal is used with the standard single-component type, sample switching type or
flow differential type.
The wiring method is as follows.
3.4.3 COMP2 (2nd component) input/output terminal
This output terminal is for the 2nd component of the standard type.
The wiring method is as follows
111
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
Instantantaneous value
output signal
0 to 1V DC or
4 to 20mA DC
Average value
output signal
0 to 1V DC or
4 to 20mA DC
(option)
Upper limit alarm
contact output
(option)
Range identification
contact output (option)
Fault
External hold input
(option)
Remote range
changeover signal
input (option)
Lower limit alarm
contact output
(option)
111
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
Instantantaneous value
output signal
0 to 1V DC or
4 to 20mA DC
Average value
output signal
0 to 1V DC or
4 to 20mA DC
(option)
Upper limit alarm
contact output
(option)
Range identification
contact output (option)
Remote range
input (option)
Lower limit alarm
contact output
(option)

12
COMP1, COMP 2 input/output terminal block
<Instantaneous value output>
Instantaneous value of 0 to 1V DC or 4 to 20mA DC is outputted.
<Moving average output> (option)
Specified 1 or 4 moving average value of 0 to 1V DC or 4 to 20mA DC is outputted.
<Upper limit alarm contact output> (option)
When signal exceeds upper limit, terminals ⑤and ⑥turn from ON to OFF and ⑥and ⑦turn from OFF
to ON.
1c contact 250V AC, 2A (resistive load)
<Lower limit alarm contact output> (option)
When signal is below lower limit, terminals ⑧and ⑨turn from ON to OFF and ⑨⑩turn from OFF to
ON.
1c contact 250V AC, 2A (resistive load)
<Range identification signal output> (option)
Terminals ⑬and ⑭are conductive when 1st range is selected: ⑬and ⑭are open when 2nd range is
selected.
1a contact 250V AC, 2A (resistive load)
<Remote range input> (option)
1st range is selected when 5V DC is inputted to terminals ⑲and ⑳; 2nd range is selected when there is
no input to terminals ⑲and ⑳.
<External hold input> (Input to COMP1 terminal) (option)
Hold setting component is outputted and held with 5V DC inputted between ⑲and ⑳.
<Fault> (Input to COMP1 terminal)
Contact output when analyzer incurs an abnormality.
1a contact 250V AC, 2A (resistive load)

13
3.4.4 O2input/output terminals (option)
This is the input/output terminal for the standard type O2analyzer.
The wiring method is as follows.
O2input/output terminal block
<Instantaneous value output>
Instantaneous value of 0 to 1V DC or 4 to 20mA DC is outputted.
<O2analyzer input signal>
O2analyzer signal of 0 to linear 1V DC is inputted.
<O2conversion output>
O2conversion instantaneous value is outputted with preset conversion reference value.
<Upper limit alarm contact output> (option)
When upper limit is exceeded, terminals ⑮and ⑯turn from ON to off and ⑯and ⑰turn from OFF to
ON .
1c contact 250V AC, 2A (resistive load)
<Lower limit alarm contact output> (option)
When signal is below lower limit, terminals ⑱and ⑲turn from ON to OFF and ⑲and ⑳turn from OFF
to ON .
1c contact 250V AC, 2A (resistive load)
<Range identification contact output> (option)
Terminals ⑪and ⑫are conductive when 1st range is selected: ⑪and ⑫are open when 2nd range is
selected.
1a contact 250V AC, 2A (resistive load)
<Remote range input> (option)
1st range is selected when 5V DC is inputted to terminals ⑬and ⑭; 2nd range is selected when there is
no input to terminals ⑬and ⑭.
1 11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
Instantantaneous value
output signal
0 to 1V DC or
4 to 20mA DC
O 2 analyzer input
signal
0 to 1V DC
O
2 converted value
output signal
(1st component)
0 to 1V DC or
4 to 20mA DC
O
2 converted value
output signal
(2nd component)
0 to 1V DC or
4 to 20mA DC
Upper limit alarm
contact output
(option)
Range identification
contact output (option)
Remote range
input (option)
Lower limit alarm
contact output
(option)