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Instruction Manual
748332-F
April 2003
1-4 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 NDIR
Figure 1-2. NGA2000 NDIR Analyzer Module (Typical - Actual Configuration May Vary)
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