EDS3-122I Datasheet, PDF (1/16 Pages) Fuji Electric – INFRARED GAS ANALYZER

INFRARED GAS ANALYZER
DATA SHEET
This gas analyzer (ZRJ) is capable of measuring the
concentrations of CO2, CO, CH4,SO2, NO and O2 components
in sample gas.
CO2, CO, CH4, NO, and SO2 are measured by non-dispersion
infrared method (NDIR), while O2 is measured by paramagnetic,
fuel cell, or zirconia method. Up to 4 components including O2 (up
to 3 components in measurement of gases other than O2) can
be measured simultaneously.
A high-sensitivity mass flow sensor is adopted in the
detection block for the infrared method. Due to use of single
beam system for measurement, maintenance is easy and an
excellent stability is ensured for a long period of time.
In addition, a microprocessor is built in and a large-size
liquid crystal display is equipped for easier operation,
higher accuracy and more functions.
This analyzer is thus optimum for combustion control of
various industrial furnaces, botanical study and global
atmospheric research.
FEATURES
1. S i m u l t a n e o u s m e a s u r e m e n t o f 4 c o m p o n e n t s
including O2
A maximum of 4 components are simultaneously
measurable; O2 and three components selected from
among CO2, CO, CH4, SO2 and NO.
Measured values can be indicated through signal input
from an externally installed O2 analyzer.
2. Excellent in long-term stability
The original optics (measurement block) minimizes
drift particularly due to contamination of a measuring
cell, so an excellent stability is ensured for a long pe-
riod of time.
3. Subdued interference from other gas components
Interference from other gas components is insignifi-
cant, because the detector is a serial dual-layer type
transmission detector.
4. Easy maintenance
Because of single-beam system the measurement
block is simple with no need for optical balance adjust-
ment. Therefore, maintenance is easy.
5. Easy to operate
Operation can be carried out smoothly in an interactive
way through a large-size liquid crystal display.
6. Abundant functions
• Zero point and span can be accurately calibrated just
by pressing the calibration keys.
Further, the analyzer is settable so as to carry out
automatic calibration periodically.
• An error will be detected by self-diagnostic function
and indicated by error message.
• Besides, a rich variety of functions are provided
including remote range input, range discrimination
signal output, output signal holding and upper/lower
limit alarm.
ZRJ
SPECIFICATIONS
Standard Specifications
Principle of measurement:
CO2, CO, CH4, SO2, NO;
Non-dispersion infrared-ray absorption
method
Single light source and single beam
(single beam system)

O2 ; Paramagnetic type (built in), fuel cell
type (built in) or zirconia sensor method
(O2 sensor externally installed)
Measurable gas components and measuring range:
CO2
CO
CH4
SO2
NO
O2
(Built-in paramagnet)
Minimum range
0 – 500ppm
0 – 200ppm
0 – 1000ppm
0 – 500ppm
0 – 500ppm
0 – 5vol%
Maximam range
0 – 100vol%
0 – 100vol%
0 – 100vol%
0 – 5000ppm
0 – 5000ppm
0 – 100vol%
O2
(External Zirconia)
0 – 5vol%
0 – 25vol%
O2
(Built-in galvanic cell)
0 – 10vol%
0 – 25vol%
• Max. 4 components measurement including O2.
• 1 or 2 measuring range per component.
• Measuring range ratio ≤ 1:5 (except built in O2)

≤ 1:20(Built-in paramag-

netic O2 analyzer)

For measurable components and possi-
ble combinations of measuring ranges,
refer to Tables 1 to 9.
EDS3-122i
Date May. 23, 2011