Troubleshoot/Maintenance
CGS-240 Manual 6/15/2021
Page 83 of 148
[Tc] Chamber Temperature
Missing
Chamber temperature sensor is not
reading and is possibly
disconnected.
Check chamber
temperature sensor (Ch3)
connection or check
temperature measurement
board (see section 6.7 or
6.1.3).
[Pai] Regulated Air-in Pressure
Missing
Regulated air in pressure sensor is
not communicating.
Check flow meter power
and connection (see section
6.2.1 or 6.6.6)
[Ps] Saturator Pressure
Missing
Saturator pressure sensor is not
communicating.
Check pressure sensor
power and connection (see
section 6.2.6 or 6.6.6).
[Pc] Chamber Pressure
Missing
Chamber pressure sensor is not
communicating.
Check pressure sensor
power and connection (see
section 6.2.7 or 6.6.6).
[Prl] Refrigeration Pressure
Low Missing
Low side refrigeration pressure
sensor is not communicating.
Check pressure sensor
power and connection. (see
section 6.4.6 or 6.6.3)
[Prh] Refrigeration Pressure
High Missing
High side refrigeration pressure
sensor is not communicating.
Check pressure sensor
power and connection. (see
section 6.4.6 or 6.6.3)
[Ph] Pressure High Range
Missing
High range pressure sensor is not
communicating.
Check pressure sensor
power and connection (see
section 6.2.6 or 6.6.6).
[Pl] Pressure Low Range
Missing
Low range pressure sensor is not
communicating.
Check pressure sensor
power and connection (see
section 6.2.7 or 6.6.6).
[Tp] Presat Temperature Out
of Range
Pre saturator temperature is out of
operating range.
Verify pre saturator
temperature.
Check pre saturator
temperature sensor (Ch1)
connection or check
temperature measurement
board (see section 6.7 or
6.1.3).
[Ts] Sat Temperature Out of
Range
Saturator temperature is out of
operating range.
Verify saturator
temperature.
Check saturator