NDIRTYPE INFRARED GAS ANALYZER
(3-COMPONENT ANALYZER)
DATA SHEET
ZKJ7
This product is the replacement of our gas analyzer <model: ZRG>
This gas analyzer (ZKJ7) is capable of measuring the con-
centrations of NO, SO2, CO2, CO, CH4 and O2 components
in sample gas.
NO, SO2, CO2, CO, CH4 are measured by non-dispersion
infrared method (NDIR), while O2 is measured by external-
mount type zirconia method sensor. A maximum of three
components including O2 are simultaneously measurable.
The mass flow type twin detector of high sensitivity and
reliability adopted in the infrared ray method detection
block makes the measurement hardly affected by interfer-
ing components.
In addition, a microprocessor is built in and a large-size
liquid crystal display is equipped for easier operation,
higher accuracy and more functions.
Optimum as an analyzer unit of gas measurement system
for combustion exhaust gas from refuse incinerator and
boiler, or gas from different industrial furnaces.
Combination of this product and model sampling system
(ZSU) is satisfied authentication test by measurement act.
FEATURES
SPECIFICATIONS
1. M e a s u r e t h r e e c o m p o n e n t s i n c l u d i n g O 2
Standard Specifications
simultaneously and continuously
Principle of measurement:
NO, SO2, CO2, CO, CH4;
Simultaneously and continuously measures up to three
components out of NO, SO2, CO2, CO, CH4, plus O2, or
up to totally three components.
Non-dispersion infrared-ray absorption
method
Single light source and double beams
(double-beam system)
2. Hardly affected by interference by other gases
The mass flow type twin detector of high sensitivity
and reliability adopted makes the measurement hardly
affected by interfering components of other gas,
ensuring a stable operation.
O2
; Exclusive zirconia O2 sensor (externally
installed). Model: ZFK7
Measurable gas components and measuring range:
3. Equipped with abundant functions
O2 conversion, average value computation, automatic
calibration, one touch calibration, upper/lower limit
alarm, remote measurement range changeover, range
identification signal output, etc. incorporated can
configure applications to match particular uses.
4. Easy-to-see large LCD unit
Minimum range
0 – 100ppm
0 – 100ppm
0 – 100ppm
0 – 100ppm
0 – 200ppm
Maximam range
0 – 5000ppm
0 – 10vol%
NO
SO2
CO2
CO
0 – 100vol%
0 – 100vol%
0 – 100vol%
CH4
The large LCD unit adopted allows observing easily
the indication of all measured components and
computation values.
O2
0 – 10vol%
0 – 25vol%
(External Zirconia)
• Max. 3 components measurement including O2.
• Measuring range ratio ≤ 1:5 (O2 sensor)
≤ 1:25
The interactive operation facilitates setting.
5. Maximum range ratio is 1:25
Measuring ranges are changeable.
6. Drift +/-1% FS/week (more than 0 to 200ppm range)
(except for O2 sensor)
• Measuring ranges are changeable between
the specified minimum and maximum range
Settable one range or two ranges
*For measurable components and possible combinations
of measuring ranges, refer to Tables 1-(1) to (3).
EDS3-141a
Date
Nov. 21, 2011
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