MKS Stabil-Ion 370 Series, Инструкция по эксплуатации, Страница: 92 / 122

4 Preparing the Stabil-Ion System for Operation
4-34
Series 370 Stabil-Ion Instruction Manual - 370119
2. A response to the IG1 ON command of OK indicates only that a signal requesting that IG1 be
turned ON has been sent to the electrometer. IG1 may fail to come ON, e.g., if the system
pressure is too high or if the gauge is disconnected. To verify that IG1 is ON, use the
DS IG1
command. If the gauge is OFF, or in its first few seconds of operation after being turned ON, a
pressure of
9.99E+9 will be returned.
IG2
Identical to IG1, but applies to IG2.
DG
Definition: Turn degas ON or OFF
Modifiers: ON or OFF
Response: OK if command accepted, or INVALID if rejected.
Example: From computer: DG ON CRLF
From 370 OKCRLF
NOTES
1. Command is INVALID if neither IG is ON.
2. A response to the DG ON command of OK indicates only that a signal requesting degas has
been sent to the electrometer. Degas will not activate if the pressure is above 5 x 10-5 Torr. Use
the DGS command (see below) to verify that degas has been successfully initiated.
DS
Definition: Display pressure reading.
Modifiers: IG1 or IG2 or IG or CG1 or CG2 .
Response: ASCII string representing the pressure for the selected gauge.
Example: From computer: DS CG1 CRLF
From 370: 1.25E-03CRLF
NOTES
1. The DS CG1 and DS CG2 commands are used to display the pressures from the lower 2
display lines with the Convectron Gauge Module installed.
2. If the requested ion gauge is turned OFF, or is in its first few seconds of operation, or data is
requested from a Convectron Gauge when none is installed, the Control Unit will return
9.90E+09.
The DS IG command will return pressure from the gauge which is ON, and 9.99E+09 if
neither is ON.
DGS
Definition: Display degas status.
Modifiers: None
Response: ASCII 1 if degas is ON, 0 if degas is OFF.
Example: From computer: DGS CRLF
From 370: 1CRLF