Stanford Research Systems
UGA Series Universal Gas Analyzers
Remote Programming
3 – 12
ZCIG 0
Error
78
“IG off failed”
ZCIG
Warning
42
“Turbo not ready”
Error
74 “IG unexpected off”
Error
76 “IG voltage”
Error
77 “IG emission”
Error
05 “IG too high”
ZCIG 2
Warning
42
“Turbo not ready”
Vent valve Off/On
The ZCVV i command turns the vent valve Off (i=0), or On
(i=1). The ZCVV? query returns the current vent valve
state.
ZCVV command opens the vent valve for second, closes it for
the next 40 seconds, opens again for the next 60 seconds, and finally
closes it. This command goes in the cycles not to vent the chamber
too fast while the turbo pump is running in full speed.
ZCVV? returns through the whole cycles. and return 0 after the
final closure.
Errors and Warnings
The command is ignored if any of these conditions are met.
ZCVV
Warning
37
“Roughing pump ON”
Error
85
“No Vent valve”
Pressure interlock Off/On
The ZCPC i command sets Pressure Interlock state to Off
(i=0), or On (i=1). The ZCPC? query returns the
current value of Pressure Interlock state.
If the state is , UGA keeps monitoring pressures from PG, CM, and
IG to protect itself from any pressure changes. If 0, it disables pro-
tection based on PG, IG and CM readings. It should be used only
by very advanced users or for trouble shooting.
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ZCVV (?) {i}
ZCPC (?) {i}
