Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 249)

Troubleshooting Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 231
Flow / Pressure
Sensor PCA SAMPLE
PRESSURE
SENSOR
NO 2 FLOW
SENSOR
SAMPLE GAS
INLET
EXHAUST
GAS OUTLET
GF
C W
h
ee
l
Housin
g
SAMPLE CHAMBER
G
F
C Motor
Hea
t Sy
nc
PUMP
PURGE GAS
INLET
Sample Gas
Flow Control
Pu
rge Ga
s
F
low Co
ntr
o
l
Purge Gas
Pressure Control
IZS INLET
PRESSURE
SPAN INLET
VENT SPAN
OUTLET
Sample / Cal
Valve
Zero / Span
Valve
E
xte
rna
l CO
2
Scru
bbe
r
Figure 10-8: Internal Pneumatic Flow – Ambient Zero/Ambient Span