Rosemount Analytical NGA 2000 - Page 19

I
NTRODUCTION
748332-D Rosemount Analytical June 1997
1-3
NGA Non-Dispersive Infraraed Analyzer
F
IGURE
1-1. NGA 2000 NDIR A
NALYZER
M
ODULE
(T
YPICAL
- A
CTUAL
C
ONFIGURATION
M
AY
V
ARY
)
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CASE
TEMPERATURE
SENSOR
REFERENCE OUT
REFERENCE IN
PURGE GAS IN
CHOPPER MOTOR
SOURCE
CELLS
DETECTOR
THERMAL FUSE
DETECTOR COVER
SHUTTER ADJUST
ACCESS HOLES
OSCILLATOR
TUNE ADJUST
NETWORK INPUT
MODULE
OSCILLATOR
BOARD
SIGNAL BOARD
DETECTOR
TEMPERATURE
CONTROL RTD
MICRO BOARD
FLOW SENSOR
PRESSURE
COMPENSATION
BOARD
(
OPTION
)
SAMPLE IN
SAMPLE OUT
(BOTTOM)
FAN
POWER SUPPLY
BOARD