Fuji Electric ZKJ-2 Instruction Manual

Instruction Manual

NDIR TYPE
INFRARED GAS
ANALYZER

TYPE: ZKJ-2

INZ-TN2ZKJ-E

PREFACE

We are grateful for your purchase of Fuji Electric’s Infrared Gas Analyzer, TYPE:ZKJ.

• First read this instruction manual carefully until an adequate understanding is acquired, and
then proceed to installation, operation and maintenance of the analyzer. Wrong handling
may cause an accident or injury.

• The specifications of this analyzer are subject to change without prior notice for further
product improvement.

• Modification of this analyzer is strictly prohibited unless a written approval is obtained
from the manufacturer. Fuji Electric will not bear any responsibility for a trouble caused
by such a modification.

• This instruction manual shall be stored by the person who actually uses the analyzer.

• After reading the manual, be sure to store it at a place easier to access.

• This instruction manual should be delivered to the end user without fail.

Manufacturer: Fuji Electric Instruments 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

Delivered Items

Name Quantity Remarks
Analyzer main frame 1
Input/Output terminal module 1
Connection cable 1
Power cable 1
Fuse 2 250V AC/3A delay type
Cell window mounting tool 1 With mounting block cell
Slide rail 2 Option
Instruction manual 1

Request

• It is prohibited to transfer part or all of this manual without Fuji
Electric’s permission in written format.

• Description in this manual is subject to change without prior
notice for further improvement.

© Fuji Electric Instruments Co., Ltd. 2001

Issued in September, 2001

iINZ-TN2ZKJ-E

CAUTION ON SAFETY

First of all, read this “Caution on safety” 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 in 3 levels, “DANGER”, “CAUTION” and
“PROHIBITION”.

DANGER

CAUTION

PROHIBITION

Caution on installation and transport of gas analyzer

DANGER

CAUTION

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.

Items which must not be done are noted.

• 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.

• 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. Other­wise, the casing may be separated and fall to cause an injury.

• The gas analyzer is heavy. It should be transported carefully
by two or more persons if manually required.

Otherwise, body may be damaged or injured.

• During installation work, care should be taken to keep the unit
free from cable chips or other foreign objects. Otherwise, it
may cause fire, trouble or malfunction of the unit.

ii INZ-TN2ZKJ-E

DANGER

Caution on piping

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
explosion, 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 disconnected 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

DANGER
CAUTION

• Wiring work must be performed with the main power set to

OFF to prevent electric shocks.

• Enforce construction of class-D grounding wire by all means.

If the specified grounding construction is neglected, a shock
hazard or fault may be caused.

• Wires should be the proper one meeting the ratings of this

instrument. If using a wire which cannot endure the ratings, a
fire may occur.

• Be sure to use a power supply of correct rating. Connection of

power supply of incorrect rating may cause fire.

Caution on use

• For correct handling of calibration gas or other reference gases,
carefully read their instruction manuals beforehand.

• Before leaving unused for a long time or restarting after left at
such a status for an extended length of time, follow the directions
of each instruction manual because they are different from
normal starting or shutdown. Otherwise, the performance may
be poor and accidents or injuries may be caused.

• Do not operate the analyzer for a long time with its door left
open. Otherwise, dust, foreign matter, etc. may stick on internal
walls, thereby causing faults.

iiiINZ-TN2ZKJ-E

Caution on use

• Do not allow metal, finger or others to touch the input/output

PROHIBITION

Caution on maintenance and check

terminals in the instrument. Otherwise, shock hazard or injury
may occur.

• Do not smoke nor use a flame near the gas analyzer. Otherwise,
a fire may be caused.

• Do not allow water to go into the gas analyzer. Otherwise,
hazard shock or fire in the instrument may be caused.

DANGER

CAUTION

• When doors are open during maintenance or inspection, 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 explosion due to gas leak.

Be sure to observe the following for safe operation avoiding
the shock hazard and injury.

• Remove the watch and other metallic objects before work.

• Do not touch the instrument wet-handed.

• 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.

• Do not use a replacement part other than specified by the
instrument 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 dis­posed of as incombustibles.

Others

• If the cause of any fault cannot be determined despite reference

CAUTION

iv INZ-TN2ZKJ-E

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.

CONTENTS

PREFACE .....................................................................................................................i

CAUTION ON SAFETY............................................................................................ ii

CONTENTS.................................................................................................................v

1. OVERVIEW..................................................................................................... 1-1

2. NAME AND DESCRIPTION OF EACH UNIT ............................................. 2-1

2.1 Name and description of main unit.....................................................................2-1

2.2 Input/Output terminal module ............................................................................2-2

3. INSTALLATION ............................................................................................. 3-1

3.1 Installation ..........................................................................................................3-2

3.1.1 Installation of analyzer main frame............................................................3-2

3.1.2 Mounting input/output terminal module ....................................................3-3

3.2 Piping..................................................................................................................3-4

3.3 Sampling.............................................................................................................3-7

3.3.1 Conditions of sampling gas ........................................................................3-7

3.3.2 Sampling gas flow ......................................................................................3-7

3.3.3 Preparation of standard gas ........................................................................3-7

3.3.4 Purging of instrument inside ......................................................................3-7

3.3.5 Pressure at sampling gas outlet...................................................................3-8

3.3.6 Example configuration of gas sampling system.........................................3-8

3.4 Wiring.................................................................................................................3-9

3.4.1 Power inlet..................................................................................................3-9

3.4.2 Input/output terminal module.....................................................................3-9

4. OPERATION ...................................................................................................... 4-1

4.1 Preparation for operation ....................................................................................4-1

4.2 Warm-up operation and regular operation..........................................................4-1

5. DESCRIPTION OF DISPLAY AND OPERATION PANELS....................... 5-1

5.1 Name and description of operation panel ...........................................................5-1

5.2 Overview of display and operation panels..........................................................5-2

5.3 Outline of display screen ....................................................................................5-3

5.4 General operation................................................................................................5-6

6. SETTING AND CALIBRATION.................................................................... 6-1

6.1 Changeover of range...........................................................................................6-1

6.2 Calibration Setting..............................................................................................6-2

6.2.1 Setting of calibration concentration............................................................6-2

6.2.2 Setting of manual zero calibration..............................................................6-4

6.2.3 Setting of calibration range ........................................................................6-6

vINZ-TN2ZKJ-E

6.2.4 Setting of auto calibration component........................................................6-8

6.3 Alarm setting ....................................................................................................6-10

6.3.1 Setting of alarm values .............................................................................6-10

6.3.2 Hysteresis setting......................................................................................6-12

6.4 Setting of auto calibration.................................................................................6-13

6.4.1 Auto calibration ........................................................................................6-13

6.4.2 Forced stop of auto calibration.................................................................6-15

6.5 Setting of auto zero calibration.........................................................................6-17

6.5.1 Auto zero calibration ................................................................................6-17

6.5.2 Forced stop of auto zero calibration .........................................................6-19

6.6 Peak alarm setting.............................................................................................6-21

6.7 Parameter setting ..............................................................................................6-23

6.8 Maintenance mode............................................................................................6-27

6.9 Calibration ........................................................................................................6-30

6.9.1 Zero calibration ........................................................................................6-30

6.9.2 Span calibration ........................................................................................6-31

7. MAINTENANCE............................................................................................. 7-1

7.1 Daily check .........................................................................................................7-1

7.2 Daily check and maintenance procedures...........................................................7-1

7.3 Maintenance of analyzer unit..............................................................................7-2

7.3.1 Cleaning method for sample cell (pipe cell)...............................................7-2

7.3.2 Cleaning method for sample cell (block cell).............................................7-4

7.3.3 Optical zero adjustment method (optical balance adjustment)...................7-6

7.3.4 Moisture interference compensation adjustment method...........................7-7

7.3.5 Replacement of fuse on analyzer unit ........................................................7-8

8 TROUBLE SHOOTING FOR ANALYZER....................................................... 8-1

8.1 Error message .....................................................................................................8-1

9. SPECIFICATIONS .......................................................................................... 9-1

9.1 General specifications.........................................................................................9-1

9.2 Code symbols......................................................................................................9-4

9.3 Outline diagram ..................................................................................................9-6

vi INZ-TN2ZKJ-E

1. OVERVIEW

This infrared gas analyzer (type: ZKJ) measures the concentration of NO, SO2, CO2, CO and CH4 con­tained in sampling gas on the principle that different atomic molecules have an absorption spectrum in the
wave band of infrared rays, and the intensity of absorption is determined by the Lambert-Beer law.

Since this instrument incorporates a compact paramagnetic O
nents simultaneously by using the built-in O

sensor (up to 4 components if O2 sensor is excluded).

2

Furthermore, use of a microprocessor or large sized liquid crystal display realizes improvement of oper­ability, accuracy and multi-functions.

This instrument is optimum for measuring combustible gas exhausted from boilers or incinerators, and it
is effective for steel gas analysis (blast furnace, steel converter, thermal treatment furnace, sintering
(Pellet equipment), coke furnace), storage and maturity of vegetable and fruit, biochemistry (microbe),
[fermentation], air pollution [incinerator, exhaust gas desulfurization, denitration], automotive emission
(excluding tester), protection against disasters [detection of explosive gas and toxic gas, combustion gas
analysis of new building material], growth of plants, chemical analysis [petroleum refinery plant, petro­leum chemistry plant, gas generation plant], environment [landing concentration, tunnel concentration,
parking lot, building management] and various physical and chemical experiments.

sensor, it allows measuring up to 5 compo-

2

1 - 1INZ-TN2ZKJ-E

2. NAME AND DESCRIPTION OF EACH UNIT

2.1 Name and description of main unit

POWER

DISPLAY

〈Rear panel 〉

Name

q Handle

w Power switch
e Switch for back

light

r Display/operation

panel

t Sampling gas

inlet

y Sampling gas

outlet

Fig. 2-1

Description

Used for withdrawing the main
unit from the panel.

Used for ON/OFF the analyzer.
Used for ON/OFF the back light

of display.
Liquid crysral diaplay and keys

for setting various functions
For connecting to the measuring

gas tube
Connect to the exhaust line. (A

pair of sampling gas inlet/outlet
is provided for each measuring
unit. When ordered with purge,
the piping to measuring unit 2 is
built inside. In this case, the
sample gas outlet for measuring
unit 2 is used for purge gas in­let.)

Name

u Sector motor
i Light source

cover

o Input/output ter-

minal connector

!0 Power inlet

Description

For driving the rotation of sec­tor

Infrared light source is arranged
in the cover.

For connecting to the external
input/output terminal module

For connecting the power cable

2 - 1INZ-TN2ZKJ-E

2.2 Input/Output terminal module

This analyzer provides input/output of various signals from the supplied input/outpt terminal
module by connecting the instrument to this module.

Fig. 2-2

Name

q Mounting hole

w Input/output

terminal block
(TN 1 to TN 5)

Description

Used for mounting input/output ter­minal module.
φ 4.5, 6 places

Input/output terminal for signals
of analog output, range identifica­tion contact, alarm contact output,

etc.

Name

e Calibration

solenoid valve
drive signal
output connector

r Input/output

terminal module
connection cable

t Communication

connector

Provides outputs of solenoid valve
drive signal during auto calibra­tion.
Transistor output
(5V, 50mA, 1 contact)

Used for connecting the analyzer
main unit to the input/output
terminal module.

Connect communication cable.
*Please refer to another manual
(INZ-TN513327-E) about
communication function.

Description

2 - 2 INZ-TN2ZKJ-E

3. INSTALLATION

DANGER

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.

CAUTION

•Entrust the installation, movement or re-installation to a specialist or the supplier. A poor
installation may cause accidental tipover, shock hazard, fire, injury, etc.

•The gas analyzer is heavy. It should be installed with utmost care. Otherwise, it may tip
over or drop, for example, causing accident or injury.

•For lifting the gas analyzer, be sure to wear protective gloves. Bare hands may invite an
injury.

•This unit should be installed in a place which conforms to the conditions noted in the
instruction manual. Otherwise, it may cause electric shocks, fire or malfunction of the unit.

•During installation work, care should be taken to keep the unit free from entry of cable chips
or other foreign objects. Otherwise, it may cause fire, trouble or malfunction of the unit.

3 - 1INZ-TN2ZKJ-E

3.1 Installation

3.1.1 Installation of analyzer main frame

Installation methods for the analyzer main unit are divided into 2 types;

Type External dimensions Mounting dimensions Mounting method

19 inch rack
mounting guide
rail method

19 inch rack
mounting slide

429
483

177

M6

450 or more

465

101.6

Slide rail
(Supports mass)

rail method

Slide rail
(Supports mass)

Note 1 Check and maintenance of the analyzer main unit may be carried out with the top cover detached.

The guide rail method may be used if a space accessible for maintenance is provided at the top of
the main unit. If maintenance space is not provided specially, it is recommended to use the slide
rail method.

Recommended slide rail: Product No.: 305A-24 manufactured by Accuride International Co.

Note 2 For 19 inch rack mounting, the weight of the analyzer is supported with the bottom of the case

(with the side of the case in case of slide rail method). For mounting dimensions of the slide rail,
see “Item 9.3 External diagram”.

Don’t install the analyzer at a place which is exposed to direct sunlight.
The analyzer should be installed at a place where ambient temperature is within 0 to 40°C, and

temperature fluctuation during use is minimum.

3 - 2 INZ-TN2ZKJ-E

3.1.2 Mounting input/output terminal module

Mount the input/output terminal module on the panel; observing the following method.

(Note) To avoid the effect of noise generated from external units, mount the I/O terminal

module mounting plate on the panel for continuity at the mounting surface and
connect the panel to the same ground as the analyzer main unit.

External dimensions Mounting dimensions Mounting method

4.5 mounting hole (x 6 places)

164

316

M4 screw

154

Cut a hole at 6 places.
Drill a 302 x 142 rectangular hole

in the center.

150 150

302

142142

Note) How to ground analyzer main unit and I/O terminal module

To avoid the effect of noises, etc. from external units, it is
recommended to ground them by the procedure described below.

Bring I/O terminal module sheet metal and
panel into continuity at ///// portion.

Terminal

To analyzer rear panel

Screwed to panel

Panel plate

Connection cable

Bring analyzer main unit and panel into continuity
at ///// portion or rail mounting portion.
(No grounding is required at the power terminal).

Mount the analyzer and I/O terminal module on the
same panel.

Ground the panel casing.

Don’t separate the analyzer and I/O terminal module, and be sure to

*
ground them together.

3 - 3INZ-TN2ZKJ-E

3.2 Piping

Piping should be connected to the gas inlets and outlets of the front panel of the analyzer.

• Use a corrosion resistant tube of Teflon, stainless or polyethylene to connect the instrument to

a sampling system. Even if there is a danger of corrosion, refrain from using a tube of rubber
or soft vinyl. The instrument provides inaccurate indication due to gas absorption by piping
materials.

• Pipe connection port is Rc1/4 female thread (or NPT1/4). Piping should be cut as short as

possible for a quick response. About 4 mm inner diameter is recommended.

• Entry of dust into the instrument may result in defective operation. Use a clean piping or

coupling.

Connect the gas tube by the following method.

Sampling gas outlet

For measuring
unit 1

Sampling gas inlet

Sampling gas inlet

Sampling gas outlet
(Purge gas inlet)

For measuring
unit 2

Sampling gas inlet: Attach the gas tube to introduce gas to be measured such as one that has

completed dehumidification process and standard gases for zero and span
calibration to this inlet.
Gas flow to be introduced should be constant within the range of 0.5 L/min
±0.2 L/min.

Sampling gas outlet: Exhaust measured gas through the outlet. Attach the tube to exhaust mea-

sured gas outdoors or to the atmosphere.

Purge gas inlet: It is used for purging the inside of the total gas analyzer . When the ana-

lyzer must be purged, refer to Item 3.3.4 Purging of instrument inside.
Use dry gas N

or instrumentation air for purge gas. (flow rate of 1L/min or

2

more should be used and no dust or mist is contained).

3 - 4 INZ-TN2ZKJ-E

Measuring unit 2

Measuring unit 1

Sampling cell

Note)
2 cells may be used
by combination of
range.

OUTLET INLET OUTLET INLET

Sampling gas inlet
Sampling gas outlet

For measuring
unit 1

Sampling gas inlet
Sampling gas outlet

For measuring
unit 2

Built-in
O

2 sensor

Internal piping diagram

Note) When the purge gas inlet is provided, the piping to measuring unit 2 is built inside.

Correspondence of measured components and measuring units

Measuring components

1-component meter for
NO, SO2, CO2, CO and
CH

4

2-component meter for
NO/SO2 and CO2/CO

2-component meter for
NO/CO

3-component meter for
NO/SO2/CO

4-component meter for
NO/SO2/CO2/CO

Measuring unit 1

Each component

NO/SO

2

CO2/CO

NO

NO/SO

2

NO/SO

2

Measuring unit 2

None

None

CO

CO

CO2/CO

Note) When the built-in O2 sensor is provided, it must be con-

nected to the measuring unit 1.

3 - 5INZ-TN2ZKJ-E

Example of connecting each measuring unit

• One pair of gas inlet/outlet

Sampling gas

• Two pair of gas inlet/outlet - (1)

Sampling gas

NO2/NO

converter

Filter

Flow meter

0.5L/min

Filter

Flow meter

0.5L/min

ZKJ

Sampling gas inlet

Sampling gas outlet

Release to atmosphere.

ZKJ

Sampling gas
inlet

Sampling gas
outlet

Exhaust

For
measuring
unit 1

Filter

Note) The NO

2/NO converter is used when NO measurement is used for NOx measurement.

• Two pair of gas inlet/outlet - (2)

Sampling gas

Filter

Flow meter

0.5L/min

Flow meter

0.5L/min

NO

converter

2/NO

Filter

Sampling gas
inlet

Sampling gas
outlet

Sampling gas
inlet

Sampling gas
outlet

Sampling gas
inlet

Sampling gas
outlet

For
measuring
unit 2

Exhaust

Release to atmosphere.

ZKJ

For
measuring
unit 1

For
measuring
unit 2

Exhaust

Release to atmosphere.

Note) The NO

2/NO converter is used when NO measurement is used for NOx measurement.

3 - 6 INZ-TN2ZKJ-E

3.3 Sampling

3.3.1 Conditions of sampling gas

q Dust contained in the sampling gas should be completely removed with a filter. For the final

stage filter, use a filter that allows removing dust particles of 0.3µm.

w Dew point of sampling gas must be lower than the ambient temperature to avoid occurrence

of drain in the gas analyzer. If vapor is contained in the sampling gas, dew point should be
lowered to 0°C by using a dehumidifier.

e If SO

mist is contained in the sampling gas, use a mist filter or cooler to remove SO3 mist.

3

Other mists should be removed by using a mist filter or cooler.

r Corrosive gases such as Cl

2

erable amounts, will shorten the life of instruments.

t Temperature of sampling gas should be within 0 to 50°C. Provide a means that prevents

entry of hot gas directly into the instrument.

3.3.2 Sampling gas flow

Flow of sampling gas should be 0.5L/min ± 0.2L/min.
Avoid flow fluctuation during measurement.
Observe the flow reading by a flowmeter provided as shown in the example of the sampling

system configuration (Item 3.3.6).

3.3.3 Preparation of standard gas

Routine calibration is required by standard gas for keeping this instrument under normal operation
condition (once a week). Prepare a standard gas cylinder for zero calibration and span calibration.

Analyzer without O
measurement

Zero gas

N2 gas

, F2 and HCl, if they are contained in the sampling gas in consid-

Analyzer with built-

2

in O2 sensor

N2 gas

Analyzer with external zirconia O
sensor

Dry air or atmospheric air (Elimi­nated with CO2 provided)

2

Span gas other
than for O
measurement

Span gas for O
measurement

2

Gas with concentra­tion of 90% or more
of full scale

2

3.3.4 Purging of instrument inside

The inside of instrument need not be purged generally except for the following cases.

q A combustible gas component is contained in sample gas.
w Corrosive gas is contained in the atmospheric air at the installation site.
e The same gas as the sample gas component is contained in the atmospheric air at the installa-

tion site.

In such cases as above, the inside of analyzer should be purged with the air for instrumentation

.

or N

2

Purging flow rate should be about 1L/min.
If dust or mist is contained in purging gas, it should be eliminated completely in advance.

Gas with concentra­tion of 90% or more
of full scale

Gas with concentra­tion of 90% or more
of full scale

Gas with concentration of 90% or
more of full scale

1 to 2% O

2

3 - 7INZ-TN2ZKJ-E

3.3.5 Pressure at sampling gas outlet

Pressure at the sampling gas outlet should be adjusted to atmospheric pressure.

3.3.6 Example configuration of gas sampling system

The following illustrates a typical system configuration for five component gas measurement for
monitoring combustion exhaust gas from boiler, refuse incinerator, etc.

Contact Fuji Electric for system configuration matching the particular use or further information.

Name

q Gas extractor

w

Gas conditioner

e Gas aspirator
r Electronic gas

cooler

t

Solenoid valve

y Membrane filter

Description

Gas extractor with a heating
type stainless steel filter of stan­dard mesh 40µm

For separation of drain, prev en­tion of drain from being sucked
through secondary filter and
composite operation of con­stant-pressure bubbler

For aspiration of sample gas
Dries the moisture in sample

gas to a dew point of approx.
2°C.

Used for introducing calibration
gas.

PTFE filter used to eliminate
fine dust particles and permit
monitoring of dust adhering
condition on the front panel of
the gas analyzer.

Name

u Flowmeter

i Standard gas

o Zirconia O2 sensor

!0 NO2/NO converter

Description

Adjusts and monitors the flow
rate of sample gas.

Reference gas used for calibrat­ing zero and span of the ana­lyzer. Total 6 cylinders requir ed
for zero gas air, span gas NO,
SO2, CO, CO2 and O2.

External zirconia oxygen
sensor used for measuring the
oxygen concentration (0 to
25%) in sample gas.
(This is not necessary in case
when O2 sensor is built-in.)

Added to NOx analyzer.
A special catalyst material for
efficient conversion of NO
gas to NO is used.

2

3 - 8 INZ-TN2ZKJ-E

3.4 Wiring

3.4.1 Power inlet

The power inlet is provided at the rear panel.
Connect supplied power cable to this power inlet (Commercial power of 85V AC to 264V AC is

available).

Rear panel

Power inlet

Input/output terminal connector

Grounding 2-pole plug

When noise source is in the vicinity

• Avoid installing this instrument near an electrical unit (high frequency furnace or electric welder)

that generates much electrical noise. If using the instrument near such a noise generating unit is
unavoidable, use a different power line to avoid noise.

Main unit

power supply

• Mount a noise suppressor such as varister (ENA211-2 by

Varistor or
spark killer

Fuji Elctric) or spark killer (S1202 by OKAYA) to the
noise generating unit when noise is generated from relays
or solenoid valves.
Mount the suppressor near the noise generating source,
or it will have no effect.

Install (connect)
near the source.

Noise

generating

source

3.4.2 Input/output terminal module

This analyzer should be connected to the input/output terminal module by supplied exclusive
cable.

Plug this cable connector into the receptacle at the rear panel of the analyzer and the receptacle on
the PC board of the input/output module.

Analyzer

Exclusive cable

(1 meter long)

Input/output

terminal module

3 - 9INZ-TN2ZKJ-E

(1) Analog output signal (AO): terminal block 1 q to @0 , terminal block 2 e to y

Output signal: 4 to 20 mADC or 0 to 1 VDC (selected when ordering)

Non-insulated output

Allowable load: 4 to 20 mADC, 550Ω or less

0 to 1 VDC, 100kΩ or less

• Analog output is provided from each terminal corresponding to the channel displayed in the

measurement screen.

All of analog output signals for the instrument are not isolated. It is recommended to isolate
signals individually to prevent interference from unnecessary signals or to prevent external
interference.

(2) O

sensor input: terminal block 2 q – w

2

Input signal:

External zirconia O
External O

analyzer: 0 to 1 VDC (DC input resistor of 1MΩ or more)

2

• It is used when the external zirconia O

• To connect to the output of the external Zirconia analyzer or external O

analyzer: Zirconia O2 sensor signal (Fuji ZFK7 output)

2

analyzer or external O2 analyzer is specified as order.

2

analyzer prepared

2

separately.

• In case of an external O

analyzer, input a signal of 0 to 1 VDC with respect to O2 full scale

2

of the analyzer.

• In case of built-in O

sensor input is not isolated. It is recommended to isolate when an external O2 analyzer is

O

2

analyzer, do not use the terminals.

2

installed apart from this analyzer.

(3) Contact input (DI): terminal block 2 !1 to @0, terminal block 3 t to !0

• It is for a contact input at no voltage. An input is provided when switching to short circuit

(on) or open (off).

• No voltage is applied to the terminals.

(4) Contact output (DO): terminal block 3 !1 to @0, terminal block 4 and terminal block 5

• Contact rating:250VAC/2A, load resistance

• An output is for a relay contact output. An output is provided when switching to conductive

(on) or open (off).

Wiring of analog output signal, O

sensor input and contact input should be fixed separately

2

from the wiring of power supply and contact output.

Note) To avoid the effect of noise generated from external units, be sure to ground the

analyzer main unit. Continue between the I/O module mounting plate and the panel
and connect the panel casing to the same ground as the analyzer.

3 - 10 INZ-TN2ZKJ-E

Terminal block 1

<TN1>

11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

10

(M3.5 screw)

CH9 output
(CH9_OUT)

CH10 output
(CH10_OUT)

CH8 output
(CH8_OUT)

CH7 output
(CH7_OUT)

CH6 output
(CH6_OUT)

CH1 output

(CH1_OUT)

CH2 output

(CH2_OUT)

CH3 output

(CH3_OUT)

CH4 output

(CH4_OUT)

CH5 output

(CH5_OUT)

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

Terminal block 2

<TN2>

11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

10

(M3.5 screw)

CH4 remote range
changeover input
(R_RNG_CH4)

CH5 remote range
changeover input
(R_RNG_CH5)

CH3 remote range
changeover input
(R_RNG_CH3)

CH2 remote range
changeover input
(R_RNG_CH2)

CH1 remote range
changeover input
(R_RNG_CH1)

CH12 output

(CH12_OUT)

CH11 output

(CH11_OUT)

Unassigned

Unassigned

O

2

sensor input

(O

2

_IN)

Note 1

Terminal block 3

<TN3>

11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

10

(M3.5 screw)

CH4 range identification
contact output (RNG_IDCH4)

CH5 range identification
contact output (RNG_IDCH5)

CH3 range identification
contact output (RNG_IDCH3)

CH2 range identification
contact output (RNG_IDCH2)

CH1 range identification
contact output (RNG_IDCH1)

Auto calibration

remote start

input (R_CAL)

Average value reset

input (RESET)

Remote hold input

(R_HOLD)

Unassigned

Unassigned

Terminal block 5

<TN5>

11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

10

(M3.5 screw)

Unassigned

Power disconnection
alarm output
(POWER_OFF)

CH5 alarm output
(ALM_CH5)

CH4 alarm output
(ALM_CH4)

CH3 alarm output

(ALM_CH3)

CH2 alarm output

(ALM_CH2)

CH1 alarm output

(ALM_CH1)

Unassigned

Terminal block 4

<TN4>

11
12
13
14
15
16
17
18
19
20

1
2
3
4
5
6
7
8
9

10

(M3.5 screw)

Unassigned

Unassigned

Unassigned

Auto calibration status/

maintenance status contact

output (ACAL/MNT)

Calibration error

contact output

(CAL_ALM)

Unassigned

Unassigned

Note 1 : For external O

2

sensor input.

Instrument error

contact output

(FAULT)

Pump ON/OFF

contact output (PUMP)

Peak count alarm

output (PEAK_ALM)

Connector

<CN3>

Solenoid valve drive signal output for calibration

(Transister output)

<D-sub 9P>

Contact output for

zero calibration

Contact output for

sample gas selection

Contact output for CH1

span calibration

Contact output for CH2

span calibration

Contact output for CH3
span calibration

Contact output for CH4
span calibration

Contact output for CH5
span calibration

5V DC relay drive power

1
2
3
4
5

6
7
8
9

(5) List of terminal blocks

3 - 11INZ-TN2ZKJ-E

(6) Description on terminal block

Terminal block 1

<TN1>

CH5 output

(CH5_OUT)

CH4 output

(CH4_OUT)

CH3 output

(CH3_OUT)

CH2 output

(CH2_OUT)

CH1 output

(CH1_OUT)

1

–

+

2
3

–

+

4
5

–

+

6
7

–

+

8
9

–

+

10

(M3.5 screw)

12
13
14
15
16
17
18
19
20

CH10 output

–

+

(CH10_OUT)

CH9 output

–

+

(CH9_OUT)

CH8 output

–

+

(CH8_OUT)

CH7 output

–

+

(CH7_OUT)

CH6 output

–

+

(CH6_OUT)

11

Terminal block 2

<TN2>

2 sensor input

O

(O

CH12 output

(CH12_OUT)

CH11 output

(CH11_OUT)

Unassigned

Unassigned

Note 1

2_IN)

1

–

+

2
3
4
5
6
7
8
9

10

(M3.5 screw)

CH5 remote range

11

changeover input
(R_RNG_CH5)

12

CH4 remote range

13

changeover input

14

(R_RNG_CH4)
CH3 remote range

15

changeover input
(R_RNG_CH3)

16

CH2 remote range

17

changeover input
(R_RNG_CH2)

18

CH1 remote range

19

changeover input
(R_RNG_CH1)

20

Note 1: For external O2 sensor input.

Terminal block 2 <TN2>
Terminal block for analog output (non-isolated

output)
Between 1–2: CH5 output
Between 3–4: CH4 output
Between 5–6: CH3output
Between 7–8: CH2 output
Between 9–10: CH1 output
Between 11–12: CH10 output
Between 13–14: CH9 output
Between 15–16: CH8 output
Between 17–18: CH7 output
Between 19–20: CH6 output

Terminal block 2 <TN2>
Between 1–2: O

sensor input

2

(For input of Fuji’s zirconia
oxygen sensor and externally
oxygen sensor. Must not be used
unless external O

sensor is

2

provided.)
Between 3–4: CH12 output
Between 5–6: CH11 output
Between 7–10 For internal connection. Must

not be wired. (Must not be used

as junction terminal).
Between 11–12: CH5 remote range changeover

input
Between 13–14: CH4 remote range changeover

input
Between 15–16: CH3 remote range changeover

input
Between 17–18: CH2 remote range changeover

input
Between 19–20: CH1 remote range changeover

input

Action of remote range changeover

High range is selected when

open. Low range is selected

when short-circuited. For details

of action, see “Item 6.7 Parameter

Setting, Remote Range”.

3 - 12 INZ-TN2ZKJ-E

Unassigned

Unassigned

Remote hold input

(R_HOLD)

Average value reset

input (RESET)

Auto calibration

remote start

input (R_CAL)

Terminal block 3

<TN3>

11

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

(M3.5 screw)

CH5 range identification
contact output (RNG_IDCH5)

CH4 range identification
contact output (RNG_IDCH4)

CH3 range identification
contact output (RNG_IDCH3)

CH2 range identification
contact output (RNG_IDCH2)

CH1 range identification
contact output (RNG_IDCH1)

Terminal block 3 <TN3>
Between 1–4: For internal connection. Must

not be wired. (Must not be used
as junction terminal.)

Between 5–6: Remote hold input. No hold

when open. Output hold when
short-circuited.

For details, refer to “Item 6.7
Parameter setting, Output Hold”.

Between 7–8: Average value reset input. short-

circuitting the contact input (for
at 1.5 sec min.) resets O
and O

corrected average simulta-

2

average

2

neously. Opening it restarts the
average value.

For details, refer to “Item 6.7
Parameter setting, Average Value
Resetting”

Between 9–10: Automatic calibration remote

start input
After shorting for 1.5 sec. or

more, automatic calibration is
started by the opening input
whether the automatic calibration
setting is ON/OFF.

For details, refer to “Item 6.4
Setting of auto calibration”

Between 11–12: CH5 range identification contact

output

Between 13–14: CH4 range identification contact

output

Between 15–16 CH3 range identification contact

output

Between 17–18: CH2 range identification contact

output

Between 19–20: CH1 range identification contact

output

Action of range identification signal

Range identification contact is
conductive at low range and open
at high range.

3 - 13INZ-TN2ZKJ-E

Terminal block 4

Peak count alarm

output (PEAK_ALM)

Auto calibration status/

maintenance status contact

output (ACAL/MNT)

Pump ON/OFF

contact output (PUMP)

Calibration error

contact output

(CAL_ALM)

Instrument error

contact output

(FAULT)

<TN4>

11

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

(M3.5 screw)

Unassigned

Unassigned

Unassigned

Unassigned

Unassigned

Terminal 4 <TN4>
Between 1–2: Peak count alarm contact output

It is conductive when peak count
exceeds the setting time. It
remains open below the setting
time. For setting and operation,
refer to “Item 6.6 Peak alarm
setting”.

Between 3–4: Contact output of auto calibration

status and maintenance contact
When the auto calibration is

carried out and remote hold is
ON, it is conductive. Remains
open otherwise.

Between 5–6: Pump ON/OFF contact output

Used when turning ON/OFF the
pump. It is open during auto and
manual calibration status and
conductive during measurement.

Between 7–8: Calibration error contact output

It is conductive when an error
occurs during zero calibration or
span calibration. It is normally
open.

Between 9–10: It is conductive when an error

occurs to the analyzer unit. It is
normally open.

Between 11–20: For internal connection, wiring is

not allowed. (Do not use it as
junction terminal).

3 - 14 INZ-TN2ZKJ-E

Unassigned

CH3 alarm output

(ALM_CH3)

CH2 alarm output

(ALM_CH2)

CH1 alarm output

(ALM_CH1)

Terminal block 5

<TN5>

11

1

12

2

13

3

14

4

15

5

16

6

17

7

18

8

19

9

20

10

(M3.5 screw)

Unassigned

Power disconnection
alarm output
(POWER_OFF)

CH5 alarm output
(ALM_CH5)

CH4 alarm output
(ALM_CH4)

Terminal 5 <TN5>
Between 2, 3 and 4:

CH3 alarm output
When the output exceeds the set value,

it is conductive between 2 and 3, and
open between 3 and 4. Otherwise, it is
open between 2 and 3 and conductive
between 3 and 4.

Between 5, 6 and 7:

CH2 alarm output
When the output exceeds the set value,

it is conductive between 5 and 6, and
open between 6 and 7. Otherwise, it is
open between 5 and 6, and conductive
between 6 and 7.

Between 8, 9 and 10:

CH1 alarm output
When the output exceeds the set value,

it is conductive between 8 and 9, and
open between 9 and 10. Otherwise, it
is open between 8 and 9.

Between 12, 13 and14:

Analyzer unit power OFF output
When the analyzer unit is turned ON,

it is conductive between 12 and 13,
and open between 13 and 14. When
the analyzer unit is turned OFF, it is
open between 12 and 13, and conduc­tive between 13 and 14.

Between 15, 16 and 17:

CH5 alarm output
When the output exceeds the set value,

it is conductive between 15 and 16,
and open between 16 and 17. Other­wise, it is open between 15 and 16,
and conductive between 16 and 17.

Between 18, 19 and 20:

CH4 alarm output
When the output exceeds the set value,

it is conductive between 18 and 19,
and open between 19 and 20. Other­wise, it is open between 18 and 19,
and conductive between 19 and 20.

For detailed action of the alarm
contact, refer to “Item 6.3 Alarm
setting”.

3 - 15INZ-TN2ZKJ-E

Connector <CN3>

Solenoid valve drive signal output for calibration

Connector

<CN3>

(Transister output)

Contact output for

sample gas selection

Contact output for

zero calibration

Contact output for CH1

span calibration

Contact output for CH2

span calibration

1
2
3
4
5

<D-sub 9P>

Contact output for CH3

6

span calibration
Contact output for CH4

7

span calibration
Contact output for CH5

8

span calibration
5V DC relay drive power

9

Connector <CN3> provides outputs in combination with calibration action during auto calibration
and manual calibration.

An output is from a transistor (ratings: 5V/50mA).
A transistor is turned ON before starting each calibration.
Sample selection output is ON during measurement and OFF during calibration.
If calibration is not performed, the other transistors are OFF.
In case of auto calibration, sequential output is ON/OFF according to the setting.
Refer to “Item 6.4 Setting of auto calibration”.

Note) No. 9 pin is for solenoid valve ON/OFF relay drive power (5V DC/0.5A, max).

Use No. 9 with reference to the diagram.

Example of using solenoid valve drive signal output for calibration

<Electrical system>

SV4

CH1
span

Contact relay

Relay board

CH2
span

5V

I/O terminal module

<Gas sampling system>

Electronic
gas cooler

9
1
3
4
5

SV2SV1

Cable

CN3

Membrane filter

SV3

Zero

Standard gas for calibration

SV1
SV2
SV3
SV4

Solenoid valve
drive power

SV1 to SV4: solenoid valves

Refer to “Item 3.3.6 Example configuration

of gas sampling system”.

Relay board (TK7H2949C4) and exclusive cable (D-sub 9p straight cable: 1.5 meters)
are available on request.

3 - 16 INZ-TN2ZKJ-E

• Zero calibration

• Span calibration

Zero calibration

output

Zero calibration

output

Pump ON/OFFcontact

Pump ON/OFFcontact

Sample selection

output

CH1 to 5 span

calibration output

CH1 to 5 span

calibration output

Output hold function

Sample selection

output

(with hold ON setting)

ZERO ENT

ENT

Hold extension time.

Calibration gas flow

Calibration gas flow

Output signal hold

Output signal hold

Calibration end

Calibration end

on
off

on
off

on
off

off

Output hold function

(with hold ON setting)

SPAN ENT

ENT

Hold extemsion time.

Note)

When selecting
CH2 using
DOWN and UP
keys.

For CH1 span

calibration

The hold extension time
depends on the gas
flow time of the
automatic calibration
settings.

(7) Timing of solenoid valve drive signal for calibration

qq

q Manual calibration (see “Item 6.9 Calibration”.)

qq

3 - 17INZ-TN2ZKJ-E

ww

w In case of automatic calibration (example shown in Item 6.4.1, Automatic calibration settings)

ww

Pump ON/OFF contact

Sample selection output

Zero calibration output

CH1 span calibration output

CH2 span calibration output

CH3 span calibration output

CH4 span calibration output

CH5 span calibration output

Automatic calibration contact

Output hold function

Automatic

calibration

start

Zero calibration

Zero gas

350

CH1 span gas

CH1 span

calibration

350

CH2 span

calibration

CH3 span
calibration

CH4 span

calibration

CH5 span

calibration

Hold

extension time.

3 - 18 INZ-TN2ZKJ-E

4. OPERATION

4.1 Preparation for operation

(1) Tube and wiring check

Double-check if tubes of the gas sampling and exhaust ports are correctly connected.
Double-check for proper wiring.

4.2 Warm-up operation and regular operation

(1) Operation procedure

q Turn ON the power switch on the front panel of the analyzer unit.

The measurement screen appears on the front display panel in 1 or 2 seconds.

w Wait for about 4 hours until the instrument is warmed up.

Since about 4 hours are required until the instrument allows accurate measurement, warm
up the instrument with the power ON.

Note) When in warm-up, the concentration reading may be beyond.

upper limit of range or

lower limit of range.

But, it is not an error.

e Setting of various set values

Perform the various settings according to “Chapter 6. Setting and Calibration”.

r Zero calibration and span calibration

Perform zero calibration and span calibration after warm-up operation.
Refer to “Chapter 6.9. Calibration”.

t Introduction and measurement of measuring gas

Introduce the measuring gas into the analyzer unit before starting measurement.

4 - 1INZ-TN2ZKJ-E

5.

DESCRIPTION OF DISPLAY AND OPERATION PANELS

This section describes the display unit and operation panel of the analyzer unit. It also explains the name
and description of function on the operation panel.

5.1 Name and description of operation panel

POWER

DISPLAY

MODE

ESC ZERO

ENT SPAN

Fig. 5-1

Name

q MODE key

Used to switch the mode.

Description

Name

t ESC key

Description

Used to return to a previous screen
or cancel the setting midway.

w SIDE key

e UP key

Used to change the selected item
(by moving the cursor) and
numeral digit.

Used to change the selected item

y ENT key

u ZERO key

Used for confirmation of selected
items or values, and for execution
of calibration.

Used for zero calibration.
(by moving the cursor) and to
increase numeral value.

r DOWN key

Used to change the selected item

i SPAN key

Used for span calibration.
(by moving the cursor) and to

decrease numeral value.

Note) The switch for back light is used for turning ON/OFF the back light of display.

The life time of back light is 50000 hours.
Please turn OFF the switch when indication is not necessary, so the life time will be longer.

5 - 1INZ-TN2ZKJ-E

5.2 Overview of display and operation panels

• Measurement mode

MODE

• Measurement mode

• Measurement mode

MODE

MODE

• Menu mode

ESC

• Menu mode

1. Changeover of Range
Setting about Calibration

2.

3. Alarm Setting
Setting of Auto Calibration

4.

5.

Setting of Auto Zero calibration

6. Setting of Peak Alarm

7. Parameter Setting

* 2) The peak alarm setting is
added according to the
code symbol when CO

2

and O

components exist.

ESC

ESCMODE

ESC

ESC

ESC

ESC

ESC

ESC

ESC

ESC

* 1

• Changeover of
Range

• Setting about
Calibration

• Alarm Setting

• Setting of Auto

Calibration

• Setting of Auto
Zero calibration

• Setting of
Peak Alarm

• Parameter
Setting

* 1) The panel configuration is changed depending on the
display channel. (The measurement mode screen can
be viewed by scrolling the arrow key up and down).

ZERO

ZERO Calibration
SPAN Calibration

SPAN

• Selection of items
Calibration value
Zero calibration
Calibration range
Auto calibration component

• Selection of items
Start Time
Cycle
Flow Time
Auto calibration ON/OFF
Stop Auto Calibration

• Selection of items
Start Time
Cycle
Flow Time
ON/OFF
Stop Auto zero Calibration

• Selection of items
Peak Alarm ON/OFF
Peak Value
Peak Count
Hysteresis

• Selection of items

Current time : Current time setting
Key lock : Key lock ON/OFF
Remote range : Remote range ON/OFF
Hold : ON/OFF
Response time : Response time (filter)
Average time : Average time setting
Average value reset: Average value resetting
Maintenance mode : Maintenance mode

(entry of password)

Fig. 5-2

5 - 2 INZ-TN2ZKJ-E

5.3 Outline of display screen

(1) Measurement mode screen (appears when the power is turned ON)

The measurement screen depends on the number of components. The following screen configura­tion as shown as an example is for NO, SO

* corrected instantaneous value ..... CV.

** correctted average value .............

, CO2, CO and O2 (output: 12 channel).

2

CV.
AV.

Fig. 5-3 Name and function of measurement mode screen

* For outputs of more than 5 channels, scroll the arrow key

No.

q

Component
display

w

Concentration
display

e

Range display

r

Unit display

Name

Displays component of instanta­neous value, corrected instanta­neous value, corrected average
value, etc.

Displays measured value of
concentration.

Displays range values.

Displays unit with ppm and
vol%.

Function

No.

t

y

u

i

or to view.

Name

Peak alarm
component
display

Peak alarm
concentration
display

Peak alarm
times

Peak alarm
unit display

Description

Displays peak alarm component.
(Only CO)

Displays peak alarm concentra­tion display.
(Upper limit value)

Displays the alarm times
exceeding the peak value.

Displays units of peak alarm with
times/H.

5 - 3INZ-TN2ZKJ-E

• Instantaneous value and concentration value:

The concentration display of CH (component) where sampling components such as “CO2”,
“CO” or “O

are displayed in the component display, indicates current concentration values of

2

the measured components contained in gas that is now under measurement.

correction concentration values:

• O

2

CH components where “cv**” is displayed as “cv CO” in the component display are calculated
from the following equation, by setting sampling components, O
values and O

correction reference value (see item 6.8).

2

instantaneous/concentration

2

Correction output=

21
21

-

On

× Cs

-

Os

K

On: The value of the O

(Value set by application)

Os: Oxygen concentration (%)

correction referance value

2

Cs: Concentration of relevant measured component
K: The value of the fractional part.
where, K is When K

4, K = 4 . When K < 0, K = 4.

When Cs < 0, K = 0.

The converted sampling components are NO

, SO2 and CO only.

X

• O2 correction concentration average value:

In the CH (component) and O

average value where “ **” is displayed as “ CO” in the

2

component display, a value obtained by averaging O

CV
AV

correction concentration value or O

2

CV
AV

correction value in a fixed time is output every 30 seconds.
Averaging time can be changed between 1 minute and 59 minutes or 1 hour and 4 hours accord-

ing to the average time settings (See 6.7, Parameter setting).
(The set time is displayed as “1h” , for instance, in the range display.)

* The measurement ranges of O

correction concentration value and O2 correction concentra-

2

tion average value are the same as that of the measuring components. Also, the measure­ment range of O

average value is the same as that of O2.

2

2

(2) Setting/selection screen

The setting/selection screen is configured as shown below:

• In the status display area, the current status is displayed.

• In the message display area, messages associated with operation are displayed.

• In the setting item and selection item display area, items or values to be set are displayed,
as required. To work on the area, move the cursor to any item by using UP, DOWN and
SIDE keys.

• LCD screen

Status display area

Cursor

Message display area

Setting item/selection item
display area

Fig. 5-4

5 - 4 INZ-TN2ZKJ-E

(3) Contents of measured channel (CH)

The following table gives measurement channels and their contents according to the symbols.

Code symbol

5th digit 6th digit 21th digit

P
A
D
B
E
F
H
G
L
M
N
P
A
B
E
F

H

G

L

M

B
H
G
L
M
B

H

G

L

M

Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
A, B, C
A, B, C
A, B, C
A, B, C
A, B, C

A, B, C

A, B, C

A, B, C

A, B, C

A, B, C
A, B, C
A, B, C
A, B, C
A, B, C
A, B, C

A, B, C

A, B, C

A, B, C

A, B, C

Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
A
A
A
A
A

A

A

A

A

B
B
B
B
B
C

C

C

C

C

Contents

CH1: NO
CH1: SO

2

CH1: CO

2

CH1: CO
CH1: CH

4

CH1: NO, CH2: SO

2

CH1: NO, CH2: CO
CH1: CO
CH1: NO, CH2: SO
CH1: NO, CH2: SO
CH1: NO, CH2: CH
CH1: NOx, CH2: O
CH1: SO
CH1: CO, CH2: O
CH1: CH
CH1: NOx, CH2: SO

CH6: Corrected NOx average, CH7: Corrected SO
CH1: NOx, CH2: CO, CH3: O

CH6: Corrected NOx average, CH7: Corrected CO average, CH8: O
CH1: CO

CH6: O
CH1: NOx, CH2: SO

CH7: Corrected CO, CH8: Corrected NOx average, CH9: Corrected SO
CH10: Corrected CO average, CH11: O

CH1: NOx, CH2: SO
CH7: Corrected SO
CH10: Corrected SO

CH1: CO, CH2: O
CH1: NO, CH2: CO, CH3: O
CH1: CO2, CH2: CO, CH3: O
CH1: NO, CH2: SO2, CH3: CO, CH4: O
CH1: NO, CH2: SO2, CH3: CO

2

, CH2: CO

2

, CH3: CO

2

, CH3: CO2, CH4: CO

4

, CH3: CO2, CH4: CO

2

, CH3: Corrected NOx, CH4: Corrected NOx average, CH5: O2 average

2

, CH2: O2, CH3: Corrected SO2, CH4: Corrected SO2 average, CH5: O2 average

2

, CH3: Corrected CO, CH4: Corrected CO average, CH5: O2 average

4

, CH2: O2, CH3: O2 average

2

, CH3: O2, CH4: Corrected NOx, CH5: Corrected SO2,

2

, CH4: Corrected NOx, CH5: Corrected CO,

2

, CH2: CO, CH3: O2, CH4: Corrected CO, CH5: Corrected CO average,

2

average

2

, CH3: CO, CH4: O2, CH5: Corrected NOx, CH6: Corrected SO2,

2

average

2

, CH3: CO2, CH4: CO, CH5: O2, CH6: Corrected NOx,

2

, CH8: Corrected CO, CH9: Corrected NOx average,

2

average, CH11: Corrected CO average, CH12 : O

2

, Peak alarm

2

, Peak alarm

2

, Peak alarm

2

2

, CH4: CO, CH5: O2, Peak alarm

2

average, CH8: O2 average

, Peak alarm

2

average

2

average,

2

average

CH1: CO, CH2: O2, CH3: Corrected CO, CH4: Corrected CO average, CH5: O2 average,
Peak alarm

CH1: NOx, CH2: CO, CH3: O
CH6: Corrected NOx average, CH7: Corrected CO

CH1: CO
CH6: O

CH1: NOx, CH2: SO

2

, CH2: CO, CH3: O2, CH4: Corrected CO, CH5: Corrected CO average,

2

average, Peak alarm

2

CH7: Corrected CO, CH8: Corrected NOx average, CH9: Corrected SO
CH10: Corrected CO average, CH11: O

CH1: NOx, CH2: SO
CH7: Corrected SO
CH10: Corrected SO

2

2

, CH8: Corrected CO, CH9: Corrected NOx average,

2

average, CH11: Corrected CO average, CH12 : O

2

, CH4: Corrected NOx, CH5: Corrected CO,

average, CH8: O2 average, Peak alarm

, CH3: CO, CH4: O2, CH5: Corrected NOx, CH6: Corrected SO2,

2

2

average, Peak alarm

average,

, CH3: CO2, CH4: CO, CH5: O2, CH6: Corrected NOx,

2

average, Peak alarm

5 - 5INZ-TN2ZKJ-E

5.4 General operation

C H

O

2

0-25

vol%

C H

CO

0-100

ppm

C H

CO

2

0-10

vol%

C H

SO

2

0-100

ppm

C H

NO

X

0-100

ppm

00

.

00

.

000

00

.

000

.

.

C H

O

2

0-25

vol%

C H

CO

0-100

ppm

C H

CO

2

0-10

vol%

C H

SO

2

0-100

ppm

C H

NO

X

0-100

ppm

00

.

00

.

000

00

.

000

.

.

ZERO

SPAN

C H

AV.

O2

PEARK COUNTER

CO 500ppm 0 times/H

0-25

vol%

C H

CO

0-100

ppm

C H

SO2

0-100

ppm

C H

NOX

0-100

ppm

000

.

00

.

00

.

00

.

CV.
AV.

CV.
AV.

CV.
AV.

ESC MODE

ESC MODE

• Measurement mode

The measurement mode can be displayed
up to 5 channels in a single screen. If 5
channels or more are to be displayed in a
single screen, press the
scroll the channel one by one.

or key to

Zero calibration
See 6.9.1.

Span calibration
See 6.9.2.

• Menu mode displays;

Changeover of Range
Setting about Calibration
Alarm Setting
Setting of Auto Calibration

Setting of Auto Zero Calibration
Setting of Peak Alarm
Parameter Setting.

For the setting contents, refer to
“Chapter 6. Setting and calibration”.

Measurement Mode

5 - 6 INZ-TN2ZKJ-E

6. SETTING AND CALIBRATION

6.1 Changeover of range

This mode is used to select the ranges of mea­sured components.

MODE

q During measurement, press the

key

to display the User mode.

w Point the cursor to “Changeover of

Range”. Press the

ENT

key.

e The “Channel Selection” screen appears.

Press the

or key until the “ ”
cursor moved selects a desired CH
(component).

ENT

r After selection, press the

key.

MODE

( )

ENT

Note) The range of O

neous values and O

correction instanta-

2

correction

2

average values is automatically
switched by changing the range of
instantaneous value of each CH
(component).

t In the Range Setting screen that appears,

move the cursor by pressing the

or

key to select the range. (The range

with a mark of

y After selection, press the

is currently selected.)

ENT

key.

u Measurement is conducted within the

selected range. The range identification
contact is closed with the low range
(Range 1), and open with the high range
(Range 2).

Note) If the Remote Range is set to ON,

the changeover of range cannot be
performed on the screen.

( )

( )

End of Range Selection

ENT

ENT

To close “Changeover of Range”

To close Changeover of Range, or cancel
the command midway, press the ESC key.

ESC

A previous screen will return.

6 - 1INZ-TN2ZKJ-E

6.2 Calibration setting

This mode is used to set calibration concentration and actions. The calibration setting involves
calibration concentration, zero calibration, calibration range and auto calibration component.

6.2.1 Setting of calibration concentration

It allows you to set concentrations of the standard gas (zero and span) of each channel used for
calibration.

MODE

MODE

q During measurement, press the

to display the User mode.

w Point the cursor to “Setting about Cali-

bration” by pressing the

ENT

Press the

key.

or key.

key

e In the “Setting about Calibration” screen

that appears, point the cursor to “Calibra­tion Value” by pressing the
key. Press the

ENT

key.

or

r In the “Calibration Concentration CH

Selection” screen that appears, point the
cursor to CH you want to set by using the

or key. Press the

ENT

key.

ENT

( )

ENT

( )

ENT

6 - 2 INZ-TN2ZKJ-E

t In the “Calibration Concentration Selection”

screen that appears, select any concentration
item you want to set by pressing the

,

key.

y In the “Calibration Concentration Value

Setting” screen that appears, enter calibration
gas concentration values (zero and span).
For value entry, press the

or key, and
a 1-digit value increases or decreases. By
pressing the

, the digit moves.

After setting, save the entry by pressing the

ENT

key. The saved value becomes valid

from the next calibration process.

Note) Enter the set values corresponding to

each range. When the O

measurement

2

uses atmospheric for the zero gas, set
the concentration value to 20.60. When
the cylinder air is used, set to the con­centration value as indicated on the
cylinder.

To close the setting

To close the calibration concentration value
setting process or cancel this mode midway,
press the ESC key.

ESC

A previous screen will return.

( )

Cursor for setting value

End of Calibration

Concentration Setting

ENT

ENT

Setting range of values

NOx, SO2, CO
measurement and buit-in paramagnetic O

2,

CO, CH4, external O2

2

sensor

External Zirconia O

2

measurement

The setting cannot be performed beyond the range.

Span gas: 1 to 100% of full scale
(Full scale (FS) is the same as each range
value.)

Zero gas: 5 to 25 vol%
Span gas: 0.01 to 5 vol%

6 - 3INZ-TN2ZKJ-E

6.2.2 Setting of manual zero calibration

When zero calibration is made manually, set either all measurement components should be
calibrated simultaneously or each component should be calibrated while selecting one by one.

MODE

q During measurement, press the

MODE

key

to display the User mode.

w Point the cursor to “Setting about Cali-

bration” by pressing the

ENT

Press the

key.

or key.

e In the “Setting about Calibration” screen

that appears, point the cursor to “About
ZERO Calibration” by pressing the

key. Press the

ENT

key.

or

( )

ENT

( )

ENT

r In the “Manual Calibration CH Selec-

tion” screen that appears, point the cursor
to CH you want to set by using the

key. Press the

ENT

key.

or

( )

ENT

6 - 4 INZ-TN2ZKJ-E

t In the “Manual Calibration Selection”

screen that appears, select “at once” or
“each” by pressing the

or key.
When selecting “at once”, the CH (com­ponents) to be set can be zero-calibrated
at the same time. When selecting “each”,
either of the CH (components) to be
selected is zero-calibrated. After setting,

ENT

press the

key.

To close “About ZERO Calibration”

( )

ENT

To close “About ZERO Calibration” setting or to
cancel this mode midway, press the ESC key.

ESC

End of Manual Calibration Setting

A previous screen will return.

Example

Whether “each” or “at once” can be determined for each CH (component).

•Setting “each”

Select the CH (component) on the manual zero calibration screen and then perform
zero calibration.

•Setting “at once”
At a manual zero calibration, zero of CH (components) for which “at once” was selected can
simultaneously be calibrated.

* When the cylinder air or atmospheric air is used for the zero gas, select “At once”.

Manual Calibration screen

• When setting all components to “each”:

A single cursor will appear.

• When setting all components to “at once”:

Cursors will appear at all components
where “at once” is set.

6 - 5INZ-TN2ZKJ-E

6.2.3 Setting of calibration range

This mode is used to set if the range of each CH (component) at the calibration (manual calibration
or auto calibration) should be calibrated with a single range or 2 ranges.

MODE

MODE

q During measurement, press the

key

to display the User mode.

w Point the cursor to “Setting about Cali-

bration” by pressing the

ENT

Press the

key.

or key.

e In the “Setting about Calibration” screen

that appears, point the cursor to “About
Calibration Range” by pressing the

key. Press the

ENT

key.

or

r In the “Calibration Range CH Selection”

screen that appears, point the cursor to
the CH you want to set by pressing the

or key. Press the

ENT

key.

( )

( )

ENT

ENT

( )

ENT

6 - 6 INZ-TN2ZKJ-E

t In the “Calibration Selection” screen that

appears, select “both” or “current” by
pressing the

or key.

• When selecting “both”, Range 1 and
Range 2 of the set CH are calibrated
together. When selecting “current”, the
range alone displayed at the set CH is
calibrated.

To close “Setting of Calibration Range”

To close “Setting of Calibration Range” or
to cancel this mode midway, press the
ESC key. A previous screen will return.

ESC

End of Manual Calibtation Setting

( )

Example

CH1
NOx

CH2

SO

Range 1: 0 to 100 ppm
Range 2: 0 to 2000 ppm

Range 1: 0 to 100 ppm
Range 2: 0 to 2000 ppm

2

both

current

CH1: Range 1 and Range 2 are calibrated together with zero and span calibration.
CH2: Only currently displayed range is calibrated with zero and span calibration.

Caution

When calibrating the span gas in the interlocked ranges, the same values should
be set in both ranges.

ENT

Manual Calibration screen

When setting NOx and CO to “both”

Two cursors will appear in both ranges (CH1 and CH4).

6 - 7INZ-TN2ZKJ-E

6.2.4 Setting of auto calibration component

It sets the CH (component) to be calibrated in the auto calibration.

MODE

q During measurement, press the

MODE

key

to display the User mode.

w Point the cursor to “Setting about Cali-

bration” by pressing the

ENT

Press the

key.

or key.

e In the “Setting about Calibration” screen

that appears, point the cursor to “Auto
Calibration Components” by pressing the

or key. Press the

ENT

key.

( )

ENT

( )

ENT

r In the “Auto Calibration Components”

selection screen that appears, point the
cursor to the CH you want to set by
pressing the

ENT

key.

or key. Press the

( )

ENT

6 - 8 INZ-TN2ZKJ-E

t In the “Auto Calibration Selection”

screen that appears, select “enable” or
“disable” by pressing the
After setting, press the

or key.

ENT

key.

To close "Auto Calibration
Component" setting

To close “Setting of Auto Calibration
Component” or to cancel this mode midway,
press the

ESC

ESC

key.

A previous screen will return.

Example

( )

End of Manual Calibtation Setting

ENT



Caution

The components which were set to “enable” is calibrated to Zero at once at the time of
auto calibration regardless of setting in “6.2.2 Setting of manual zero calibration”.

6 - 9INZ-TN2ZKJ-E

6.3 Alarm setting

6.3.1 Setting of alarm values

This mode is used to set the upper or lower limit value to provide an alarm output during measure­ment. Before changing the alarm setting, set the ON/OFF to OFF.

q During measurement, press the

to display the User mode.

w Point the cursor to “Alarm Setting” by

pressing the
key.

or key. Press the

MODE

key

ENT

MODE

e After the alarm setting CH selection

screen has appeared, point the cursor to
the CH you want to set by pressing

key .

ENT

Press the

key.

r After the alarm item selection screen has

appeared, operate the

or key until

the cursor is aligned with a desired item

ENT

and press the

key.

or

( )

ENT

ENT

Caution

Set the values so that upper limit value > lower
limit value and that (upper limit value

-

lower

limit value) > hysteresis.

( )

ENT

6 - 10 INZ-TN2ZKJ-E

After setting, the alarm setting is now

Cursor for setting value

Caution

•

For 10 minutes after turning on power, the alarm judgment is inactive.

ENT

completed by pressing the

key.

To close the "Alarm Setting"

To close the “Alarm Setting” or to cancel
this mode midway, press the

ESC

ESC key.

A previous screen will return.

( )

End of Alarm Setting

ENT

Description of setting items

Upper limit value: Sets the upper limit value (concentration) of alarm.
Lower limit value: Sets the lower limit value (concentration) of alarm.
Contact action: Selects one of upper limit alarm, lower limit alarm, and upper limit or

lower limit alarm.
Upper ... Alarm contact closes when above upper limit alarm.
Lower ... Alarm contact closes when below lower limit alarm.
Upper or lower ... Alarm contact closes when above upper limit value or

below lower limit value.

ON/OFF: Enables the alarm function if set at ON, or disables the alarm function if set at OFF.

* The upper limit value cannot be set below the lower limit value, and the lower limit value

cannot be set above the upper limit value.
If it is desired to set the upper limit value below the lower limit value already stored in the
memory, reduce the lower limit value beforehand, and vice versa.

Typical on-screen display when an alarm occurs

When an upper limit alarm has
occurred, the “High alarm” message
lights at CH (component)
(“Low alarm” at lower limit alarm).

C H

NO

X

High alarm

0-100

C H

SO

2

0-100

C H

CO

2

0-10

C H

CO

0-100

C H

O

2

0-25

---­.

00

.

0003

.

00

.

2100

ppm

ppm

vol%

ppm

vol%

6 - 11INZ-TN2ZKJ-E

6.3.2 Hysteresis setting

To prevent chattering of an alarm output near
the alarm setting values, set the value
of hysteresis.

q In the “Alarm Setting CH” Selection”

screen that appears, point the cursor to
“Hysteresis” by pressing the
key. Press the

ENT

or

key.

w In the “Hysteresis Value Setting” screen

that appears, enter hysteresis values.
For the value entry, 1-digit value is

increased or decreased by pressing the

or key, and pressing the key

moves the digit. After setting, press the

ENT

key.

To close "Hysteresis Setting"

To close the “Hysteresis Setting” or cancel
the mode midway, press the

ESC

ESC

key.

A previous screen will return.

Setting range

0 to 20% of full scale
A full scale means each range provides a full
scale of width.

Hysteresis (In case of upper limit alarm)

( )

( )

End of Hysteresis Setting

ENT

ENT

Caution

The hysteresis is common to all CHs
(components).

An alarm output is turned ON if measurement value exceeds the upper limit value as shown
below. Once the alarm output has been turned ON, it is not turned OFF as long as the
indication does not fall below the hysteresis width from the upper limit value.

Upper limit value

Hysteresis width

ON (conductive)

Alarm

OFF (open)

6 - 12 INZ-TN2ZKJ-E

6.4 Setting of auto calibration

6.4.1 Auto calibration

Auto calibration is automatically carried out at the time when zero calibration and span calibration
are set.

Before changing the setting of auto calibration, set the ON/OFF to OFF.

q During measurement, press the

to display the User mode.

w Point the cursor to “Setting of Auto

Calibration” by pressing the
key. Press the

ENT

key.

MODE

or

key

MODE

e In the “Setting of Auto Calibration”

screen that appears, point the cursor to
any item you want to set by pressing the

or key. Press the

ENT

key.

r In the “Auto Calibration Parameter

Setting” screen that appears, perform the
value entry or the setting. For the value
entry or setting change, use the

or
key. To change the setting, use the
key to move the cursor to the right.

ENT

After setting, press the

key, and auto
calibration is carried out by the entered
setting value.

Description of setting items

• Start Time : Setting at the first calibration
(day of the week, hour, minute)

• Cycle : A period between the start time of one
calibration and another
(unit : hour/day)

• Flow Time : The time required for the calibration gas
to be replaced in the cell

• ON/OFF : ON/OFF of auto calibration

( )

( )

ENT

ENT

To close "Setting of Auto calibration"

To close the "Setting of Auto calibration" or cancel
this mode midway, press the

ESC

ESC

key.

A previous screen will return.

End of Aoto Calibration Setting

ENT

6 - 13INZ-TN2ZKJ-E

“Auto calibration status” and “maintenance status” contact outputs are closed during auto calibration, and
are open in other cases. When hold is set to ON, the contacts are closed during holding.

Example

Start Time
Cycle
Flow Time
ON/OFF

SUN
1
350
ON

12:00
day
sec

In case where auto calibration is carried out at the above setting.

Sunday
12:00

Cycle

Monday
12:00

Tuesday
12:00

: Auto calibration

Zero
calibration

350sec 350sec

CHI
Span
calibration

CH2
Span
calibration

350sec

CH3
Span
calibration

CH4
Span
calibration

CH5
Span
calibration

Flow time

(An example of “CH1: through CH5: enable”, as given in Item 6.2.4 “Auto Calibration
Components”)

Setting range

Cycle : 1 to 99 hours or 1 to 40 days (initial value 7days)
Flow time : 60 to 599 sec  



(initial value 300sec)

Caution

When an auto calibration starts, the measurement screen automatically appears.

•

Any operation other than “Stop Auto Calibration” (see Item 6.4.2) is

•

not permitted during auto calibration. “Stop Auto Calibration” cannot be
performed with the key lock to ON. To cancel auto calibration forcedly, set
the key lock to OFF and then execute “Stop Auto Calibration”.

Remote start

Whether the auto calibration is set at ON or OFF, an auto calibration is available by keeping the
remote start input closed for at least 1.5 seconds.

Closed (keep at least 1.5 sec.)

Remote start input

Open

6 - 14 INZ-TN2ZKJ-E

6.4.2 Forced stop of auto calibration

This mode is used to cancel the auto calibration forcedly.

q In the User mode that is displayed, point

the cursor to “Setting of Auto Calibra­tion” by pressing the

ENT

Press the

key.

or key.

w In the “Setting of Auto Calibration” item

selection screen that appears, point the
cursor to “Stop Auto Calibration” by
pressing the

or key. Press the

key.

e “Stop Auto Calibration” is inverted. A

message appears, prompting you to
verify that you want to cancel or continue
auto calibration. To cancel the auto

ENT

calibration, press the

ESC

press the

key, auto calibration is not

key. If you

stopped.

ENT

( )

( )

ENT

ENT

6 - 15INZ-TN2ZKJ-E

“Auto Calibration” screen

Example

In case where setting the auto calibration components (see Item 6.2.4) to

“CH1: enable” and “CH2: enable”

• Zero calibration

A message, “Zero cal.” blinks
at CH1 and CH2.

• CH1 span calibration
A message, “Span cal.” blinks

at CH1.

• CH2 span calibration
A message, “Span cal.” blinks

at CH2.

C H

NO

ZERO cal.

0-100

C H

SO

ZERO cal.

0-100

C H

CO

0-10

C H

CO

0-100

C H

O

2

0-25

C H

NO

SPAN cal.

0-100

C H

SO

0-100

C H

CO

0-10

C H

CO

0-100

C H

O

2

0-25

C H

NO

0-100

C H

SO

SPAN cal.

0-100

C H

CO

0-10

C H

CO

0-100

C H

O

2

0-25

X

2

2

X

2

2

X

2

2

05

.
.

03

.

0000

.

00

2102

.

.

908

.

00

.

000

.

00

000

.

00

.
.

950

.

000

.

00

.

000

ppm

ppm

vol%

ppm

vol%

ppm

ppm

vol%

ppm

vol%

ppm

ppm

vol%

ppm

vol%

Caution

During auto calibration, any key operation is not permitted other than operations such
as key lock ON/OFF and “Stop Auto Calibration”.
When the key lock is set at ON, even the “Stop Auto Calibration” cannot be used.
To stop “Auto Calibration” forcedly, set the key lock to OFF and then execute
“Stop Auto Calibration”.

6 - 16 INZ-TN2ZKJ-E

6.5 Setting of auto zero calibration

6.5.1 Auto zero calibration

Auto zero calibration is automatically carried
out at the time when zero calibration is set.
Components for which a calibration is to be
made are determined by setting of auto cali­bration component in Item 6.2.4.

Before changing the setting of auto zero
calibration, set the ON/OFF to OFF.

MODE

q During measurement, press the

to display the User mode.

w Point the cursor to “Setting of Auto Zero

Calibration” by pressing the
key. Press the

ENT

key.

e In the “Setting of Auto Zero Calibration”

screen that appears, point the cursor to
any item you want to set by pressing the

or key. Press the

ENT

r In the “Auto Zero Calibration Parameter

Setting” screen that appears, perform the
value entry or the setting. For the value
entry or setting change, use the

key. To change the setting, use the
key to move the cursor to the right.

ENT

After setting, press the

key, and auto
zero calibration is carried out by the
entered setting value.

key

or

key.

or

MODE

( )

ENT

Description of setting items

• Start Time : Setting at the first calibration
(day of the week, hour, minute)

• Cycle : A period between the start time of one
calibration and another
(unit : hour/day)

• Flow Time : The time required for the calibration gas
to be replaced in the cell

• ON/OFF : ON/OFF of auto zero calibration

To close "setting of Auto Zero Calibration"

To close the Setting of Auto Zero Calibration
or cancel this mode midway, press the

ESC

ESC

key.

A previous screen will return.

( )

End of Auto Zero Calibration Setting

ENT

ENT

6 - 17INZ-TN2ZKJ-E

“Auto calibration status” and “maintenance status” contact outputs are closed during auto calibration, and
are open in other cases. When hold is set to ON, the contacts are closed during holding.

Example

Start time
Cycle
Flow time
ON/OFF

In case where auto zero calibration is carried out at the above setting.

Sunday
12:00

Zero
calibration

300sec

SUN
1
300
ON

Cycle

Flow time

Monday
12:00

12:00
hour
sec

Tuesday
12:00

: Auto zero calibration

(An example of “CH1: through CH5: enable”, as given in Item 6.2.4 “Auto Calibration
Components”)

Setting range

Cycle : 1 to 99 hours or 1 to 40 days (initial value 7days)
Flow time : 60 to 599 sec  



(initial value 300sec)

Caution

When an auto zero calibration starts, the measurement screen automatically appears.

•

Any operation other than "Stop Auto Zero Calibration" (see Item 6.5.2) is not

•

permitted during auto zero calibration. “Stop Auto Zero Calibration” cannot be
performed with the key lock to ON. To cancel auto zero calibration forcedly, set the
key lock to OFF and then execute “Stop Auto Zero Calibration”.
If the auto calibration period and auto zero calibration period have

•

overlapped, the auto calibration is retained, ignoring the auto zero calibration
of that period.

6 - 18 INZ-TN2ZKJ-E

6.5.2 Forced stop of auto zero calibration

This mode is used to cancel the auto zero calibration forcedly.

q In the User mode that is displayed, point

the cursor to “Setting of Auto Zero
Calibration” by pressing the
key. Press the

ENT

key.

or

w In the “Setting of Auto Zero Calibration”

item selection screen that appears, point
the cursor to “Stop Auto Zero Calibra­tion” by pressing the

ENT

Press the

key.

or key.

e “Stop Auto Zero Calibration” is inverted.

A message appears, prompting you to
verify that you want to cancel or continue
auto zero calibration. To cancel the auto

ENT

zero calibration, press the

ESC

you press the

key, auto zero calibra-

key. If

tion is not stopped.

( )

( )

ENT

ENT

6 - 19INZ-TN2ZKJ-E

“Auto Zero Calibration” screen

Example

In case where setting the auto calibration components (see Item 6.2.4) to
“CH1: enable”, “CH2: enable” and “CH3 to CH5:disable”

C H

NOX

• Zero calibration
A message, “Zero cal.” blinks

at CH1 and CH2.

ZERO cal.

0-100

C H

SO2

ZERO cal.

0-100

C H

CO2

0-10

C H

CO

0-100

C H

O2

0-25

05

.
.

03

.

0000

.

00

.

2102

ppm

ppm

vol%

ppm

vol%

Caution

During auto zero calibration, any key operation is not permitted other than operations such
as key lock ON/OFF and “Stop Auto Zero Calibration”.
When the key lock is set at ON, even the “Stop Auto Zero Calibration” cannot be used.
To stop “auto zero calibration” forcedly, set the key lock to OFF and then execute
“Stop Auto Zero Calibration”.

6 - 20 INZ-TN2ZKJ-E

6.6 Peak alarm setting

When the peak number of times CO concentration exceeds the upper limit value during measure­ment exceeds the set number, an alarm is provided.

The peak alarm and this setting screen appear only when an option is added.

MODE

MODE

q Press the

mode, and the User mode appears.

w Point the cursor to “Setting of Peak

Alarm” by pressing the
Press the

e In the “Peak Alarm Setting” item selec-

tion screen that appears, point the cursor
to any item you want to set by pressing

or key. Press the

the

key in the Measurement

or key.

ENT

key.

ENT

key.

r Then, enter numeric values and perform

the setting.

Entering the numeric values or setting the
items should be carried out by using the
or key.

ENT

After setting, press the

key, and the set

values are saved.

Description of setting items

• Peak Alarm : ON/OFF of peak alarm

• Alarm Value : If measuring value exceeds the

set alarm value, a peak counter counts
1 time.

• Alarm Count : When a peak in excess of the setting
time occurs, a peak count alarm output

is provided.

• Hysteresis : To prevent possible chattering

when the measuring value may exceed
the set peak concentration by only
1 time, the peak count has an
allowance in the hysteresis width.

( )

( )

ENT

ENT

ENT

End of Peak Alarm Setting

6 - 21INZ-TN2ZKJ-E

Action of peak alarm

Example

If CO concentration exceeds the alarm value, counting will begin. If the number of peaks is over
the set times per hour, a peak alarm contact output becomes closed (ON). If it is less than the set
times per hour, it is open (OFF). Since 5 times of peaks /hour is marked at q section from
the above graph, the peak count alarm is turned ON. Since peaks of more than 5 times per 1 hour
occur at the interval between q and w , the peak count alarm remains ON. Since at w,
peaks are reduced to 4 times per hour, it is turned OFF.

Like the hysteresis of the alarm setting , the hysteresis prevents possible chattering when mea­sured gas is fluctuated near the alarm value.

* For 10 minutes after the power is turned ON, a peak alarm counting is not carried out.

Releasing peak alarm

To release the peak alarm, set the peak alarm to OFF.
Turning on the peak alarm initiates counting from 0.

6 - 22 INZ-TN2ZKJ-E

• Current Time : Sets the current day of the week, hour and time.

• Key Lock : Sets with ON/OFF so that any key operation except the key

lock OFF cannot be performed.

• Remote Range : Sets with ON/OFF whether the Range Selection is made valid or
invalid by external input.

• Output Hold : Sets whether Calibration Output is held or not.

• Average Value Reset : Resets the average value.

• Response time : Sets the response time of electrical system.

• Average Period : Sets the moving average time.

• Maintenance mode : Enters passwords to switch to the Maintenance mode.

Description of setting items

6.7 Parameter setting

It allows you to carry out the parameter setting such as time, key lock, etc., as required. Items to be
set are as follows:

* For the maintenace mode, see Item 6.8.

q To display the User mode, press the

key in the measurement mode.

w Point the cursor to “Parameter Setting”

by pressing the

ENT

key.

or key. Press the

e In the “Parameter Setting” screen that

appears, point the cursor to any item you
want to set by pressing the
key. Press the

ENT

key.

or

MODE

MODE

( )

ENT

( )

ENT

6 - 23INZ-TN2ZKJ-E

r In the Parameter Setting screen that

appears, enter the numeric values and set
the items. Entering the numeric values or
setting the items should be carried out by
using the

or key. To move the
cursor to the right, press the
After setting, press the

ENT

key.

key, that the
parameter setting is carried out with the
value you set.

To close Parameter Setting screen

To close the “Parameter Setting” screen
or cancel this mode midway, press the

ESC

key.
A previous screen will return.

End of Parameter Setting

ENT

Setting Range

• Response time : 1 to 60sec. (Initial value: 15 sec)

• Average period : 1 to 59 min or 1 to 4 hours (Initial value: 1 hour)

When setting the unit of 1 to 59 minutes is terms of minute
or 1 to 4 hours with hour

• Maintenance mode : 0000 to 9999 (Initial value: 0000)

Remote Range

A range can be switched via an external input by setting the Remote Range to ON (The switching
action affects all of instantaneous value, O

correction value, O2 correction average value and O

2

average value.) If the Remote Range is set to OFF, the external input becomes invalid.
Opening the input gives the High range, or shorting the input gives the Low range.

2

For the terminal input, refer to Item 3.4, Wiring.
Switching the range cannot be performed by on-screen operation when the Remote Range is set to

ON.

Note) In case of 1 range meter, this function is overridden.

Output Hold

By setting an output hold to ON, an output signal of each channel are held during the calibration
(manual calibration and auto calibration) and for the gas flow time (refer to Item 6.4, Setting of
Auto Calibration). Regardless of Hold ON/OFF setting, an output signal can be held via an
external input.

(1) Manual calibration

ZERO

Calibration

Output hold

or

SPAN

Press the key to flow gas.
To execute calibration, press the ENT key.

ENT

ENT

Hold extending
time.

Time set to gas flow time (See Item 6.4 Auto Calibration.)

6 - 24 INZ-TN2ZKJ-E

(2) Auto calibration

Auto calibration start Auto calibration end

Calibration

Output hold

(3) External hold

Remote hold

Output hold

Time hold set to the gas flow time

Close
Open

Hold extending time.

Note) With the external hold input, auto calibration status and maintenance status contact are

conductive.

(4) Screen display during Holding

The “Holding” message blinks on the measuring screen.
Since the screen displays the process of calibration is displayed during the manual calibration,

“Holding” is not displayed even if the output signal is held, but the screen is displayed with the
hold extending time.

(5) If calibration is cancelled after the calibration gas is supplied regardless of during manual cali-

bration or auto calibration, the holding extending time will be performed.

Average value reset

This mode is used to clear all average values O

correction average and O2 average, and restarts

2

averaging. All average values are reset at a time. The indication value and output value is 0 ppm,
vol% or so at the time of the reset input (Refer to the average peripd).

Close (hold at least 1.5 sec.)

Reset input

So long as close, resetting lasts.
At the edge of changing from closing to opening, the average action restarts.

Open

Response time

The response time of the electrical system can be
changed.

Setting is available by components.

Note) It does not provide exact seconds for

the setting time, but it gives a guide of
the setting time.

The setting value can be modified as
requested by the customer.

6 - 25INZ-TN2ZKJ-E

Average period

It allows you to set an average period of the
average value of O

correction and O2 average.

2

It enables you to set an average time of 1 to 59
minutes (1-minute step) or 1 to 4 hours (1-hour
step).
Changing the setting resets the average value of

correction and O2 average value. (Pressing

O

2

ENT

the

validates the resetting only for compo-

nents whose setting was changed.)

Example of average action

In case the average period was set to 1 hour.

Reset

Average value

Time

1 Time

·

Sampling occurs every 30 seconds.

·

Every 30 seconds, the average for last 1 hour (time setting) is output.

·

At the instant of resetting, zero is assumed for all past values. It means that the average value

will not be correct for 1 hour after resetting.

Maintenance mode

To open the maintenance mode, enter a password. After entering the password, press the

ENT

The password can be set for the Password Setting in the Maintenance mode. A password is set to
“0000” before factory-shipment. This value is available for the Maintenance mode.

key.

6 - 26 INZ-TN2ZKJ-E

6.8 Maintenance mode

This mode is used for check of sensor input values, display of error log files or setting of pass­words, etc. First, enter a password and then use it from the next operation. This mode is displayed
by selecting the Maintenance Mode from “Item 6.7 Parameter Setting”.

q Select the Maintenance mode from the

Parameter Setting screen to display the
Password Setting screen.

w Enter the password, and the Maintenance

Mode item selection screen will be
displayed. Point the cursor to the item
you want to set by pressing the
key and press the

ENT

key.

e Next, each Maintenance screen is dis-

played.

Note) “To Factory Mode” is used for our

service engineers only. Refrain
from using this mode.

or

( )

ENT

• Sensor Input Value screen

Description of Sensor Input Value screen

• NOx M : NOx sensor input value

• NOx C : NOx interference compensation

sensor input value

2

• SO

• SO

M:SO2 sensor input value

2

C:SO2 interference compensation

sensor input value

• CO2 M:CO2 sensor input value

2

• CO

C:CO2 interference compensation

sensor input value

• CO M : CO sensor input value

• CO C : CO interference compensation

sensor input value

• Temperature: temperature sensor input value

• O

2

:O2 sensor input value

• Error Log screen

Description of Error Log screen

Error history
For error number, date and time (days, period) of
occurrence, channel and other details of error,
refer to Item 8.1 Error message.

Each “Maintenance” screen

6 - 27INZ-TN2ZKJ-E

• Password Setting screen

Description of Password Setting screen

It enables you to set a password to be used when
switching the parameter setting mode to the
maintenance mode.

Note) The password set herein must be

managed for safety. Failure to enter
the correct password will not open
the Maintenance mode.

Caution

If the following operation is maladjusted, the measurement may be adversely and excessively
affected. Carry out the operation with utmost attention.

. Optical adjustment screen

For details of this item, refer to “Item 7.3.3
Optical zero adjustment method”.
The selenoid valve driving signal for zero

ENT

gas is turned ON by pressing the

key.

. Moisture interference adjustment screen

For details of this item, refer to “Item 7.3.4
Moisture interference adjustment method”.

Description of moisture interference

adjustment screen

In values on the right side of screen, the moisture
interference for each component is already offset.

By “

” or “ ” key, move “ ” cursor to a

desired CH (component).
Make sure the gas for moisture interference

flows. By “

“ or “ ” key, get the

value after moisture interference offset will

ENT

get near 0 and press the “

” key to

register the moisture interference corrected
value into the memory.

ENT

6 - 28 INZ-TN2ZKJ-E

Caution

Since an interference compensation detector
is not provided if the 1st range is beyond 0 to
10 vol%, no interference adjustment can be
performed (no need).

• Setting of O2 correction reference value

Set the O
a numerical value by
shifting a digit by
Calculated value shoud be referred to O

correction reference value by selecting

2

or key or

key.

correction

2

values given in “Item 5.3 Outline of display screen”.

Setting range

01 to 19%

• Setting of station No. for communication function

Set the station NO. by selecting a numerical value

or key or shifting a digit by key.

by

Setting range

00 to 31 (Initial = 00)

* Please refer to another manual (INZ-TN513327-E)

about the communication function.

6 - 29INZ-TN2ZKJ-E

6.9 Calibration

6.9.1 Zero calibration

It is used for zero point adjustment. For zero
calibration gas, suited for an application
should be used according to “(3) Standard gas
in Item 3.3 Sampling”.

q Press the

screen to display the Manual Zero Cali­bration screen.

ZERO

key on the Measurement

ZERO

w Select the CH (component) to be cali-

brated by pressing the
After selection, press the

or key.

ENT

key, and

zero gas will be supplied.

Caution

For the CH (components) that is set to
“both” in the “Zero Calibration” of the
Calibration Setting mode, zero calibration
is also carried out at the same time.

e Wait until the indication is stabilized

with the zero gas supplied. After the
indication has been stabilized, press the

ENT

key. Zero calibration in range

selected by the cursor is carried out.

To close "Zero Calibration"

( )

ENT

ENT

To close the Zero Calibration or
cancel this mode midway, press the

ESC

ESC

key. A previous screen will return.

ENT

To Measurement screen after
executing Manual Zero Calibration

6 - 30 INZ-TN2ZKJ-E

6.9.2 Span calibration

It is used to perform a span point adjustment. Supply calibration gas with concentration set to the
span value to perform the span calibration. For the span calibration gas for the NO
CO measurement, use the standard gas with a concentration of 90% or more of the range value.
For the span calibration gas for the O
90% or more of the range value when measuring with the built-in O
gas of about 2 vol% when measuring with an external zirconia O

q Press the

SPAN

screen to display the Manual Span Calibra­tion screen.

measurement, use the standard gas with a concentration of

2

key on the Measurement

, SO2, CO2,

X

sensor, and use the standard

2

sensor.

2

SPAN

w Select CH (component) to be calibrated by

pressing the or key and press the
key. The calibration gas is supplied.

Caution

When “both” from “Calibration Range” of the
Calibration Setting mode is set, span calibra­tion is performed together with 2 Ranges.

e Wait until the indication is stabilized in the

state where the calibration gas is supplied.
After the indication has been stabilized,

ENT

press the

key. Span calibration of

Range selected by the cursor is performed.

To close "Span Calibration"

ENT

( )

ENT

ENT

To close the “Span Calibration” or cancel
this mode midway, press the key.

ESC

A previous screen will return.

ENT

To Measurement screen after
executing Manual Span Calibration

6 - 31INZ-TN2ZKJ-E

7. MAINTENANCE

7.1 Daily check

(1) Zero calibration and span calibration

q Perform zero calibration. For the calibration procedures, refer to “Item 6.9.1 Zero calibra-

tion”.

w Then, perform span calibration. For the calibration procedures, refer to “Item 6.9.2 Span

calibration”.

e Zero calibration and span calibration should be carried out once a week, as required.

(2) Flow rate check

q Sampling gas flow and purge gas flow are as follows:

• Sampling gas flow: 0.5L/min±0.2L/min

• Purge gas flow: About 1L/min

w Check and maintenance should be carried out every day, as required.

7.2 Daily check and maintenance procedures

Table 7.1 Maintenance and check table

7 - 1INZ-TN2ZKJ-E

7.3 Maintenance of analyzer unit

7.3.1 Cleaning method for sample cell (pipe cell)

This section is strictly factory adjusted. Handle it with utmost attention.
If it is absolutely required, contact us.

q Turn off the power switch, stop the

sample gas, and allow the zero gas to
flow for several minutes to purge the
cell interior.

Loosen the setscrew (2 pieces) from
the top cover and remove it.

w Remove the internal gas inlet tube.
e Loosen both right and left screws for

cell holding plate.

• Remove the sample cell only.

r Turn to the left the sample cell window

and remove it from the sample cell (see
Fig. 7-1).

t For cleaning the window and cell

inside surface, first eliminate coarse
dust by soft brush or the like and then
wipe them by soft rag.

The window is easy to get scratched.
Pay utmost attention so as not to
damage it.

y After the end of sample cell cleaning,

mount the cell in place and proceed to
running.
After cleaning sample cell, be sure to
perform optical zero adjustment (see
Item 7.3.3) and moisture interference
compensation adjustment (see Item

7.3.4).

Top cover

Screw

Cell holding
plate

Gas outlet

Screw

Sample cell

Cell holding
plate

Gas inlet

Reference cell

Caution

A slightly corroded infrared transmission window or sample cell can be remedied by gently rubbing
with chromium oxide powder on cleaning cloth but an excessively corroded one must be replaced.
When cleaning, do not exert an excessive stress.

7- 2 INZ-TN2ZKJ-E

Infrared
transmission
window

Window holder
O ring

Sample gas inlet

Cell

Bonded together

Sample gas outlet

Fig. 7-1 Structure of sample cell (pipe cell)

7 - 3INZ-TN2ZKJ-E

7.3.2 Cleaning method for sample cell (block cell)

q Turn off the power switch, stop the

sample gas, and allow the zero gas to
flow for several minutes to purge the
cell interior.

Loosen the setscrew (2 pieces) from
the top cover and remove it.

w Remove the internal gas inlet tube.
e Loosen the 2 detector set bolts.

Note) The distribution cell, block cell

and detector are fastened by the
same bolts.

r Using the furnished cell mounting tool,

turn the window fixture to the left and
remove it from the cell. (See the
structure of sample cell (block cell) in
Fig. 7-2.)

t For cleaning the infrared transmission

window and cell inside surface, first
eliminate coarse dust by soft brush or
the like and then wipe them by soft rag.

The window is easy to get scratched.
Pay utmost attention so as not to
damage it.

y After the end of sample cell cleaning,

mount the cell in place and proceed to
running.

After cleaning sample cell, be sure to
perform optical zero adjustment (see
Item 7.3.3) and moisture interference
compensation adjustment (see Item

7.3.4).

Top cover

Gas inlet tube set cap nut

Detector set bolt

Infrared transmission window

Inner O ring

Outer O ring

O ring holder

Window fixture

Caution

A slightly corroded infrared transmission window or sample cell can be remedied by gently rubbing
with chromium oxide powder on cleaning cloth but an excessively corroded one must be replaced.
When cleaning, do not exert an excessive stress.

7- 4 INZ-TN2ZKJ-E

Cell mounting tool

Window fixture
O ring holder

Outer O ring
Inner O ring
Infrared transmission window

Sample gas outlet

Sample cell unit

Structure of sample cell (of 32, 16, 8, 4, 2 mm long)

Note) Use the dedicated cell mounting tool (furnished).

Sample gas inlet

Reference cell unit
Hole for bolt

for fixing together with
distribution cell and detector

(sample cell and reference cell are integrated)

Fig. 7-2 Structure of sample cell (block cell)

7 - 5INZ-TN2ZKJ-E

7.3.3 Optical zero adjustment method (optical balance adjustment) Caution

If the following operation is maladjusted, the measurement may adversely be affected. If you are
not trained for adjustment, do not carry out this operation but contact the distributor or our service­man.

The adjustment is performed at reassembly after removing the sample cell, etc. for cleaning, etc.

q Remove the top cover. Allow dry N

2

or air to flow through the analyzer unit
sample gas inlet until the reading
stabilizes. The sample gas is intro­duced directly to the INLET of ana­lyzer unit through the gas cylinder.

w Proceed to an optical adjustment in the

maintenance mode. The display on the
operation panel of the main unit is as
illustrated on the right. (If values are
within ± 50, the balance adjustment is
unnecessary.)

Piping at optical balance adjustment

Optical system 2
(measuring unit 2)

Short
(not required
for measuring
unit 1 only)

Introduce directly from cylinder

a

b

c

d

Optical system 1

(measuring unit 1)

Open

e

f

g

h

<Correspondence between measurement detector and indicated position>

No. of components

to be measured

1-component meter

2

NO/SO

CO2/CO

NO/CO

2-component meter

3-component meter
NO/SO

2

/CO

4-component meter
NO/SO2/CO2/CO

a

Main

NO

Main
CO

Main

b

Comp

NO

Comp

2

CO

2

Comp

NO

MainNOComp

NO

MainNOComp

NO

MainNOComp

c

–

SO

Main

CO

Main

d
–

SO

2

Comp

CO

Comp

––

SO

2

SO

Main

SO

Main

Comp

2

SO

Comp

2

CO

MainCOComp

CO

2

MainCOComp

2

CO

Main

e
–

–

–

f

–

–

–

2

–

* O2 is excluded from the number of components.
* “Main” is signal input value from the main detector of each component.

“Comp” is signal input value from interference compensation detector of each component.

If low range exceeds the range of 0 to 10vol%, detector signal of “comp” is not usable.

Sensor values of which are not included in measuring components should be ignored.

g

–

–

–

h

–

–

–

––

––

CO

MainCOComp

7- 6 INZ-TN2ZKJ-E

Optical zero adjustment knob

Optical
system 1

Optical system 2

Beam adjustment plate

Detector set bolt

e Carry out the adjustment in the procedure in r and subsequent.

• When optical system 1 is adjusted. Get the values at a to d in 1-1 and 1-2 within ± 50

and as near 0 as possible.

• When optical system 2 is adjusted. Get the values at e to h in 2-1 and 2-2 within ± 50

and as near 0 as possible.

r Operate the optical zero adjustment

knob to change the value displayed at
a (or e ).

t Move the beamadjustment plate

sideview to change the value displayed
at b (or f ).

y Move the beam adjustment plate

sidewise to change the value displayed
at c (or g

).

u Move the beam adjustment plate

sidewise to change the value displayed
at d (or h ).

i Sequentially repeat steps r to u so

that all values will be within ± 50 and
as near 0 as possible.

* Adjust the beam adjustment plate

which is the nearest to the zero
adjustment knob first, and sequen­tially.

7.3.4 Moisture interference compensation adjustment method

If the following operation is maladjusted, the measurement may adversely be affected. If you are
not trained for adjustment, do not carry out this operation but contact the distributor or our service­man.

o After the optical balance adjustment, mount the top cover of the analyzer unit, then carry out

a moisture interference compensation adjustment, and perform zero and span calibrations.

* Before moving the beam adjustment plate, loosen the detector set bolts (just enough

to make the plate movable for snug adjustment).

Caution

Proceed to an adjustment if excessively
(beyond ± 2% FS) affected by moisture
inteference.

After the end of optical balance adjustment, be
sure to carry out moisture inteference compen­sation adjustment.

q After warm-up, select the low range, allow

dry gas (N

, air) to flow at 0.5 L/min and

2

N2 or air

carry out zero calibration.

Water

Bubbler

7 - 7INZ-TN2ZKJ-E

w Display the moisture interference compensation screen of the analyzer unit (see “6.8 Mainte-

nance mode”). Then, introduce bubbled N

or air gas to the analyzer (shown on right).

2

e On the screen, select a CH (component) by

ENT

“

” key, press the “ ” or “ ” key

until the analytical value is within ±10 (as

ENT

near 0 as possible), and press the “

”

key to register it in the memory. (Exiting

ESC

by “

” cancels the adjustment.)

Or, selecting the ALL CH and pressing the

ENT

” key, zeroes all components inte-

“

grally.
(First, adjust all components by selecting

ALL and then perform fine adjustment for
components one by one using UP and
DOWN keys.)

* If any components exceed the range of 0

to 10vol%, no adjustment can be per­formed (No interference compensation is
required).

r After the end of adjustment for all compo-

nents, return the piping to the original
status and carry out zero and span calibra­tions.

7.3.5 Replacement of fuse on analyzer unit

Note) Before the following work, be sure to remove the cause of blown fuse (short, etc) and

repair.

q Turn OFF the main power supply SW of

the analyzer.

w Loosen setscrews (4 pcs.) from the top of

the analyzer and remove the top cover.

e Turn the fuse holder (shown in Fig. 7-3)

counterclockwise and put it out, and the
cap will be removed. Remove the fuse
(250V AC/3A) from the holder. Replace it
with a new one .

r Mount the fuse holder cap and cover for

analyzer indication unit in the reverse
procedure. Turn ON the power supply SW.
The work will be completed if the analyzer
is normally worked.

Fuse holder

Front

Fig. 7-3

7- 8 INZ-TN2ZKJ-E

8 TROUBLE SHOOTING FOR ANALYZER

8.1 Error message

If errors occur, the following contents are displayed.

Error display Error contents Probable causes

Error No.1 • Motor rotation is faulty or stopped.

Motor rotation detection signal
faulty

• Motor rotation detector circuit is faulty.
Note) Sector motor is a consumption part.

It is recommendable to exchange the
motor once two years.

Zero calibration is not within. Error No.4

Error No.5

Amount of zero calibration
(indication value) is over 50%
of full scale.

Error No.6

Span calibration is not within the
allowable range.

Error No.7

Amount of span calibration
(difference between indication value
and calibrated concentration) is over
50% of full scale.

Error No.8 • Calibration gas is not supplied.

Measured values fluctuate too much
during zero and span calibration.

Error No.9 • Error corresponding to No. 4 to No. 8

Calibration is abnormal during auto
calibration.

Error No.10 • Wiring is detached between analyzer and

Output cable connection is
improper.

• Zero gas is not supplied.

• Zero is deflected much due to dirty cell.

• Detector is faulty.

• Optical balance is maladjusted.

• Span gas is not supplied.

• Calibrated concentration setting does not

match cylinder concentration.

• Zero calibration is not performed normally.

• Span is deflected much due to dirty cell.

• Detector sensitivity has deteriorated.

• Time for flowing calibration gas is short.

occurred during auto calibration.

interface module.

• Wiring is disconnected between analyzer and

interface module.

When errors No. 1 and No. 10 occur, analyzing block error contact output is closed.
When errors No. 4 to No. 9 occurs, calibration error contact output is closed.

Screen display and operation at the occurrence of error

In case of Error No. 1 to No. 4, No. 6, No. 8 to No. 10

Measurement screen

C H

NO2

Error No.9

0-25

C H

SO2

0-100

C H

CO2

0-10

C H

CO

0-100

C H

O2

0-25

• Press the key to delete the error display.

• If the key is pressed without removing
the cause of an error, the error will be
displayed again.

ESC

0000

ESC

008
136

.

2

100

00

.

.

ppm

.

ppm

vol%

.

ppm

vol%

ENT

ESC

Display of error contents

• When more than one error occurs, pressing
the key moves to another error display.

8 - 1INZ-TN2ZKJ-E

In case of Error No. 5 and No. 7

ENT

• Pressing delete the error display.

ESC

ENT

ESC

Calibrated
forcedly

C H

NO

Calibration is continued. Unless another calibration
error occurs, calibration is carried out to the end, the
Measurement screen returns.

2

0-25

C H

SO

2

0-100

C H

CO

2

0-10

C H

CO

0-100

C H

O

2

0-25

908

.
.

136

.

0000

.

00

.

009

ppm

ppm

vol%

ppm

vol%

Error log file

If error occurs, the history is saved in an error log file. The error log file exists in the mainte­nance mode.

Error log screen

Day of the week and time
when an error occurred.

Component with which
the error occurred.

New

Errors that occurred

Old

* Up to 14 errors can be saved in the error history; the oldest error will be deleted one by one every

time a new occurs.

* If the power supply is turned OFF, the contents in the error log file will not be lost or damaged.

Deletion of error history

ENT

Press the
pressing the

key on the above screen, and the “Error Log Clear” will be inverted. Further

ENT

key will clear the error history.

8 - 2 INZ-TN2ZKJ-E

9. SPECIFICATIONS

9.1 General specifications

1. Standard specifications

Measurable component and measurement range:

Minimum range Maximum range
NO 0 to 100 ppm 0 to 5000 ppm
SO2 0 to 100 ppm 0 to 10 vol%
CO2 0 to 50 ppm 0 to 100 vol%
CO 0 to 100 ppm 0 to 100 vol%
CH4 0 to 500 ppm 0 to 100 vol%
O2

(built in)
O2 0 to 5 vol% 0 to 25 vol%

(external
zirconia)

Measured values can also be displayed
from externally mounted O
case of Zirconia O2 sensor, measurable
range is shown above.
Max. 5 components including O2 sensor
can be measured and 2 measuring ranges
are available. For measurable compo­nents and possible combinations of
measuring range, refer to Tables 1 to 5.

Principle of measurement: No, SO2, CO2, CO, CH4

Non-dispersion infrared-ray absorption
method, Single light source and double
beams (double-beam system)
O2; Paramagnetic method (Built-in O2 meter)

Measured value indication:

Digital indication in 4 digits
(LCD with back light)

Instantaneous value of each component

Display of instantaneous value of each
component measurement concentration, O2
corrected instantaneous value, O2 correvted
average value and O2 average value
(O2 average value when only O2 sensor is
connected. Instantaneous value converted
into O2 and average value converted into O2
are added with measurement of NO, SO2
and CO only. Display is selectable.

Analog output signals:

4 to 20mA DC or 0 to 1V DC, non-isolated
output ; 12 points max.
Analog output corresponds to measured
value indication in 1:1.
Permissible load resistance;
550Ω max. for 4 to 20 mA
DC100kΩ min. for 0 to 1V DC

Analog input signal:

For signal input from externally mounted zir­conia O2 sensor (when ZFK7 is used)
For signal input from externally mounted O2
analyzer.
0 to 1 VDC from an O2 analyzer.
Input section is not non-isolated. This fea­ture is effective when an O2 sensor is not
built in.
Input signal triggers measured concentra­tion indication and O2 correction.

2 analyzer. In

Contact output:

1a contact (250V AC/2A, resistive load)
Instrument error, calibration error, range
discrimination, auto calibration status and
maintenance status, pump ON/OFF, peak
alarm.
1c contact (250V AC/2A, resistive load)
Upper/lower alarm contact output.
(for each channel)
Power disconnection alarm.

* All relay contacts are isolated mutually

and from the internal circuit.

Contact input: No-voltage contact (ON/0V, OFF/5V DC,

5mA flowing at ON).
Remote range changeover, auto calibration
remote start, remote holding, average value
resetting, pump ON/OFF.
Isolated from the internal circuit with
photocoupler. Contact inputs are not iso­lated from one another.

Transmission output:

Solenoid valve drive signal for automatic
calibration; open collector output (50 mA or
less), used in combination with sampling
module.

Rated operating conditions:

Power supply; 85 to 264 V AC, 50/60Hz (3­pin inlet terminal used)
Power consumption; 60VA
Ambient temperature; -5˚C to 45˚C
Ambient humidity; 90% RH max.

Storage conditions:

Ambient temperature; -5˚C to 45˚C
Ambient humidity; 100% RH max., non-con­densing

Dimensions (H × W × D):

19 ″ rack nounted type: 177 × 483 × 690mm

(Analyzer main unit)
164 × 318 × 55mm
(Input/output terminal module;)

Mass: Approx. 22 kg
Finish color: Front panel; Off-white (Munsell 10Y7.5/0.5 or

equivalent)
Casing; Steel-blue (gray)

Enclosure: Steel casing, for indoor use
Material of gas-contacting parts:

Gas inlet/outlet; SUS304
Infrared-ray sample cell;
SUS304/neoprene rubber
Infrared-ray transmitting window;
CaF2
O2 sensor sample cell : SUS316
Internal piping; Toaron tube,

Teflon tube

Gas inlet/outlet: Rc1/4 or NPT1/4 internal thread
Purge gas flow rate: 1L/min ( when required)

9 - 1INZ-TN2ZKJ-E

2. Standard Functions

Output signal holding:

Output signals are held during manual and auto calibrations
by activation of holding (turning "ON" its setting).
The values to be held are the ones just before start calibra­tion mode.
Indication values will not be held.

Remote output holding:

Output signal is held at the latest value by short-circuiting
the remote output holding input terminals.
Holding is maintained while the terminals are short-cir­cuited. Indication values will not be held.

Remote range changeover:

Measuring range can be changed according to an external
signal when remote range changeover input is received.
Changeover is effective only when remote range setting is
turned on. In this case, measuring range cannot be
changed manually.
When the contact input terminals for each component are
short-circuited, the first range is selected, and it is changed
over to the second range when the terminals are open.

Range identification signal:

The present measuring range is identified by a contact sig­nal.
The contact output terminals for each component are short­circuited when the first range is selected, and when the sec­ond range is selected, the terminals are open.

Auto calibration:

Auto calibration is carried out periodically at the preset
cycle.
When a standard gas cylinder for calibration and a solenoid
valve for opening/closing the gas flow line are prepared ex­ternally by the customer, calibration will be carried out with
the solenoid valve drive contacts for zero calibration and
each span calibration turned on/off sequentially at the set
auto calibration timing.
Auto calibration cycle setting:

Auto calibration cycle is set.
Setting is variable within 1 to 99 hours (in increments of
1 hour) or 1 to 40 days (in increments of 1 day).

Gas flow time setting:

The time for flowing each calibration gas in auto calibra­tion is set.
Settable within 60 to 599 seconds (in increments of 1
second)

Auto calibration remote start:

Auto calibration is carried out only once according to an
external input signal. Calibration sequence is settable in
the same way as the general auto calibration.
Auto calibration is started when a no-voltage rectangular
wave is applied to the auto calibration remote start input
terminals (opened after short-circuiting for 1.5 seconds or
longer).

Auto zero calibration:

Auto zero calibration is carried out periodically at the preset
cycle.
This cycle is independent on “Auto calibration” cycle.
When zero calibration gas and solenoid valve for opening/
closing the calibration gas flow line are prepared externally
by the customer, zero calibration will be carried out with the
solenoid valve drive contact for zero calibration turned on/
off at the set auto zero calibration timing.

Auto zero calibration cycle setting:

Auto zero calibration cycle is set.
Setting is variable within 1 to 99 hours (in increments
of 1 hour) or setting is variable within 1 to 40 days (in
increments of 1 day).

Gas flow time setting:

The timing for flowing zero gas in auto zero calibration
is set. Settable 60 to 599 seconds (in increments of 1
second)

Upper/lower limit alarm:

Alarm contact output turns on when measurement value
is reached to the preset upper or lower limit alarm value.
Contacts close when the instantaneous value of each
component becomes larger than the upper alarm limit
value or smaller than the lower alarm limit value.

Instrument error contact output:

Contacts close at occurrence of analyzer error No. 1, 3 or

10.

Calibration error contact output:

Contacts close at occurrence of manual or auto calibra­tion error (any of errors No. 4 to 9).

Auto calibration status and maintenance status contact
outputs: Contacts close during auto calibration and

during input of the remote hold signal.

CO concentration peak count alarm:

(added only for CO/O2 measurement)
Alarm output turns on according to the preset concentra­tion and count.
Whenever the instantaneous concentration value of CO
exceeds the preset concentration value, count incre­ments. If the count exceeds the preset value in one hour,
the alarm contacts close.

3. Optical functions

O2 correction:

Correction of measured NO, SO2 and CO gas concentra­tions into values at reference O2 concentration

Correction formula:

21-O
21-O

n

s

C = –––––––– x Cs

C: Sample gas concentration after O2 correction
Cs: Measured concentration of sample gas
Os: Measured O2 concentration
On: Reference O2 concentration
(value changeable by setting)
* The upper limit value of the fractional part in this cal-

culation is 4.
The result of calculation is indicated and output in an ana­log output signal.

Average value after O2 correction and O2 average value
calculation:

The result of O2 correction or instantaneous O2 value can
be output as an average value in the determined period of
time.
Used for averaging is the moving average method in
which sampling is carried out at intervals of 30 seconds.
(Output is updated every 30 seconds. It is the average
value in the determined period of time just before the lat­est updating.)
Averaging time is settable within 1 to 59 minutes (in incre­ments of 1 minute) or 1 to 4 hours (in increments of 1
hour).

9 - 2 INZ-TN2ZKJ-E

Average value resetting:

The above-mentioned output of average value is started
from the initial state by applying a no-voltage rectangular
wave to the average value resetting input terminals
(opened after short-circuiting for 1.5 seconds or longer).
Output is reset by short-circuiting and restarted by opening.

Pump ON/OFF contact output:

During measurement, this contact closes. While calibration
gas is flowing, this contact opens. This contact is con­nected in power supply of pump, and stop the sample gas
while calibration gas flowing.

Communication function:

RS-232C (9pins D-sub)
Half-duplex bit serial
Start-stop synchronization
Modbus TM protocol
Contents:

Read/Write parameters
Read measurement concentration and instrument
status

Remark:

When connecting via RS-485 interface,
an RS-232 RS-485 converter should be used.

4. Performance

Repeatability: ±0.5% of full scale
Linearity: ±1% of full scale
Zero drift: ±2% of full scale/week
Span drift: ±2% of full scale/week
Response time (for 90% FS response) :

Within 60 seconds including replacement
time of sample gas (when gas flow rate is

0.5L / min).

6. Installation Requirements

• Select a place where the equipment does not receive
direct sunshine, draft/rain or radiation from hot sub­stances.
If such a place cannot be found, a roof or cover should
be prepared for protection.

• Avoid a place where receives heavy vibration.

• Select a place where atmospheric air is clean.

5. Standard Requirements for Sample Gas

Flow rate: 0.5L / min ±0.2L / min
Temperature: 0 to 50˚C
Pressure: 10 kPa or less (Gas outlet side should be

open to the atmospheric air.)
Dust: 100 µg/Nm3 in particle size of 1 µm or
less
Mist: Unallowable
Moisture: Below a level where saturation occurs at

2˚C (condensation unallowable).
Corrosive component:

HCl 1 ppm or less
Standard gas for calibration:

Zero gas; Dry N2

Span gas; Each sample gas having

concentration 90 to 100% of
its measuring range (recom

mended).
In case a zirconia O2 analyzer is installed
externally and calibration is carried out on
the same calibration gas line:
Zero gas; Dry air or atmospheric air

(provided without CO2 sensor)
Span gas; For other than O2 measure

ment, each sample gas having

concentration 90 to 100% of

its measuring range.
For O2 measurement, O2 gas of 1 to 2 vol%.

9 - 3INZ-TN2ZKJ-E

9.2 Code symbols

Basic type: ZKJMMMM2-MMMMMM-MMMMMM-MMM

456789101112

4

<Custom specifications>
Standard

5

<Measurable component (SO
NO

2

SO
CO

2

CO

2

CH
NO+SO

2

NO+CO

2

+CO

CO

2

+CO

NO+SO

2

+CO2+CO

NO+SO
Others

6

<Measurable component (O
None
External zirconia type sensor

2

analyzer

External O
Built-in paramagnetic type O

<Power supply and gas inlet/outlet>

7

85 to 264V AC Rc1/4
85 to 264V AC Rc1/4, with purging
85 to 264V AC NPT1/4
85 to 264V AC NPT1/4, with purging

2

,CO2,CO,CH4)>

2

)>

2

sensor

<Revision code>8
<Structure>

9

19-inch rack mounting type
19-inch rack mounting type with side rail

<Indication>

10

In Japanese
In English

<Measuring range> 1st component, 1st range

11

0 to 50ppm
0 to 100ppm
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

<Measuring range> 1st component, 2nd range

12

None
0 to 100ppm
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

DescriptionDigit

ZKJ

F

2

13

P
A
D
B
E
F
H
G
L

M

Z

Y
A
B
C

0
1
2
3

14

2

B
C

J

E

A

B
C
D

E

F
G
H

J

K
Q

L
M
N
W

P

X
R

Y
B
C
D
E
F
G
H
J
K
Q
L
M
N
W
P
X
R

15

16

13 14 15 16

DescriptionDigit

<Measurable component> 2nd component, 1st range
None
0 to 100ppm
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

<Measurable component> 2nd component, 2nd range
None
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

<Measurable component> 3rd component, 1st range
None
0 to 100ppm
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

<Measurable component> 3rd component, 2nd range
None
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

Y

B
C
D

E

F
G
H

J

K
Q

L
M
N
W

P

X
R

Y
C
D
E

F
G
H

J
K
Q

L
M
N
W
P
X
R

Y

B
C
D

E

F
G
H

J

K
Q

L
M
N
W

P

X
R

Y
C
D
E
F
G
H
J
K
Q
L
M
N

W

P
X

R

9 - 4 INZ-TN2ZKJ-E

DescriptionDigit

<Measurable range> 4th component, 1st range

17

None
0 to 100ppm
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%
0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%
0 to 40%
0 to 50%
0 to 70%
0 to 100%

<Measurable range>

18

None
0 to 200ppm
0 to 250ppm
0 to 500ppm
0 to 1000ppm
0 to 2000ppm
0 to 5000ppm
0 to 1%

0 to 2%
0 to 3%
0 to 5%
0 to 10%
0 to 20%

0 to 40%

0 to 50%
0 to 70%
0 to 100%

19

<O2 analyzer, 1st range>
None
0 to 5%
0 to 10%
0 to 25%

2

analyzer, 2nd range>

<O

20

None
0 to 10%
0 to 25%

<Output>

21

4 to 20mA DC
0 to 1V DC
4 to 20mA DC + Communication function
0 to 1V DC + Communication function

2

correction and O2 average value output>

22

<O
None
With O

2

correction output

With peak count alarm

2

correction and O2 average value

With O
<Adjustment>

23

For combustion exhaust gas
Others

4th component, 2nd range

17 18 19 20 21 22 23

Y
B
C
D
E

F
G
H

J
K
Q

L
M
N
W
P
X
R

Y
C
D
E

F
G
H

J
K
Q

L
M
N
W
P
X
R

Y

L
M
V

Y
M
V

A
B
C
D

Y
A
B
C

A
Z

9 - 5INZ-TN2ZKJ-E

9.3 Outline diagram

<Analyzer main unit>

<Upper>

(24)

M4(for mounting slide rail)

690 or less

<Side>

12.7

466.7

288.9

123.8

Power switch

DISPLAY

Switch for back light

Connector for input/output

terminal module

465
483

429

6

Power inlet

38

Sample gas outlet Rc1/4 or NPT1/4

Sample gas inlet Rc1/4 or NPT1/4

<Front>

<Rear>

100

177

26.1

9 - 6 INZ-TN2ZKJ-E

<Input/output terminal module>

12

hole

6-φ4.5

316

150 150 8

(140)

<Cable for connecting input /output terminal>

164

(54.5)

154 5

29

TN1 TN2 TN3 TN4 TN5

(280)

CN3

8

1000±30

9 - 7INZ-TN2ZKJ-E

Outline diagram of accessory slide rail (unit: mm)

Model: 305A-24/Accuride International Inc.

632

(22.7)

606.6±0.8

12.7±0.3

Reinforcement

plate

Cabinet member

1.5t

Intermediate
member

19.1±0.3

Drawer member

1.5t

(12.4)

12.7±0.3

15.9±0.5

123.8±0.3

288.9±0.3

466.7±0.3

19 inch rack mounting method:

The instrument weight should be supported at the base (at the sides in case of slide rail method).
For easy maintenance, it is recommended to select the method to allow withdrawing along the
slide rail.

Slide rail mounting method Guild rail mounting method

4.5 × 5.3

* The slide rails are attached to this equipment

when designated.

Closed

The same or less

(9.5)

15.9±0.3

12.7±0.3

Open

609.6±0.3

577.8±0.3

577.8±0.3

577.8±0.3

111.1±0.3

12.7±0.3

4.5 × 5.3

Rack dimensions

Rack dimensions

101.6

450 or more

465

450 or more

465

Mounting dimensions Mounting dimensions

Slide rail

Guide rail

101.6

Guide rail

In selecting the guide rail mounting method,
provide a maintenance space (200 mm or more)
at top of the rack.

9 - 8 INZ-TN2ZKJ-E