EDS3-123M Datasheet, PDF (6/20 Pages) Fuji Electric – NDIR TYPE INFRARED GAS ANALYZER(5-COMPONENT ANALYZER)

ZKJ
Principle diagram of NDIR type measurement (For NO, SO2, CO2, CO, CH4, N2O)
Motor
Distribution cell
(interference filter)
Trimmer
Reference cell
Interference compensating
detector
Rotary sector
Sector
sync. signal Infrared (single)
light source
Sample cell
Sample gas
inlet
Sample gas
outlet
External input / Contact output
O2 sensor
(option)
A/D
CPU
D/A
Indicator
RAM
ROM
Output
0 to 1V or
4 to 20mA DC
Principle diagram of paramagnetic type measurement (For O2)
Permanent
magnet
Gas inlet
Magnetic field
Gas outlet
Mirror
Measuring
cell
Dumbbell
Preamplifier
Permanent
magnet
LED
Photodiode
Indication
Output
Signal processing
and calculation block
6