EDS3-134A Datasheet, PDF (1/8 Pages) Fuji Electric – INFRARED GAS ANALYZER FOR HEAT TREATMENT FURNACES

INFRARED GAS ANALYZER ^{FOR HEATTREATMENT FURNACES}
DATA SHEET
ZFG
OVERVIEW
This gas analyzer (ZFG) is capable of measuring the concen-
trations of CO2, CO and CH4 components in sample gas.
Compact and lightweight design is intended, and a maximum
of 2 components are simultaneously measurable.
A high-sensitivity mass flow sensor is used in the detector
unit of 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 sized
liquid crystal display is provided for easier operation, higher
accuracy and more functions.
This analyzer is thus optimum for combustion control of
various heat treatment furnaces.
FEATURES
1. Compact and lightweight design is intended, and a
maximum of 2 components are simultaneously mea-
surable; 2 components selected from among CO2, CO
and CH4.
2. A high stability mass flow sensor is used in the detec-
tor;The original optics (measurement block) minimizes
drift particularly due to contamination of a measuring
cell, so an excellent stability is ensured for a long
period 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 adjustment. 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/span can be accurately calibrated just by
pressing the calibration keys.
• An error will be detected by self-diagnostic func-
tion and indicated by error message.
• Besides, a rich variety of functions are provided
including CP calculation value output, remote
range changeover input, range discrimination
signal output and output signal holding.
SPECIFICATIONS
Standard Specifications
• Measuring system:
Non-dispersive infrared absorption method
with single light source and single beam
(single beam method)
• Measurable gas components and measuring range:
Min. measuring range Max. measuring range
CO2
0 to 0.5ˋ
0 to 100vol%
CO
0 to 0.5ˋ
0 to 100vol%
CH4
0 to 1ˋ
0 to 10%
• Max. 2 components measurable
• 2 ranges selectable
• Measuring range ratio ≤ 1:5 max
• Measured value indication:
Digital indication in 4 digits (LCD with
back light, Automatic OFF function)
• Instantaneous value of each compo-
nent
• Result display for CP calculation
(optional)
Display language: Japanese or English
selectable
• Analog output signals:
4 to 20mA DC, 0 to 1V DC,
0 to 10mV DC or 0 to 100mV DC
Non-isolated output
Analog output corresponds to measured
value indication in 1:1.
• Allowable load resistance:
4 to 20mA DC 550Ω or less
0 to 1V DC, 0 to 100mV DC,
or 0 to 10mV DC, 100kΩ or more
EDS3-134a
Date Apr. 1, 2011