Specifications

M
AINTENANCE AND
T
ROUBLESHOOTING
748410-A
August 1999
28
Chemiluminescense Detector Analyzer Module
Rosemount Analytical NGA 2000
4
1
Flow Balance
Metering Valve
903207
Sample
Regulator
655269
Computer Analysis
Board 655520
In
su
l
ato
r
LON/Power
Module
Power Supply
Board 657520
Detector Case
Insulator
Detector Assembly 658160
See Fi
g
ure 4-3
Signal
Board
655580
Sample
Pressure
Sensor
655253
Ozone
Pressure
Sensor
655254
3
PCB Insulators
Driver
Board
655620
NO/NOx Solenoid
655263
Flow Sensor
902931
Thermostat
657298
Pressure Switch 655215
Ozonator
659494
Transistor
655264
Fan Guard
Fan Guard
EMI Shield
Converter Assembly 655250
See Fi
g
ure 4-2
Glass Tube
Connectors
Fan
655245
2
Ground wires from ozonator shown.
Flow direction of intake fan (shown) is into case. Flow direction of exhaust fan is out of case.
Fan guard between fan and EMI filter is on the intake fan only (shown).
1
2
3
Ozonator Power Supply
657716
Fuse, Power
903347
F
IGURE
4-1. CLD M
ODULE
A
SSEMBLY