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Series 360, Granville-Phillips, Stabil-Ion, Ionization, Vacuum ...

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4 Preparing the <strong>Stabil</strong>-<strong>Ion</strong> System for Operation<br />

4.12.1 Command Syntax<br />

DG<br />

Definition:<br />

Modifiers:<br />

Response:<br />

Example:<br />

NOTES<br />

Turn degas on or off.<br />

ON or OFF<br />

OK if command accepted, or INVALID if rejected.<br />

From computer: DG ON CRLF<br />

From <strong>360</strong>: OKCRLF<br />

1. Command is INVALID if neither IG is on.<br />

2. A response to the DG ON command of OK indicates only that a signal requesting degas has<br />

been sent to the electrometer. Degas may fail to activate if the pressure is above 5 x 10 -5 Torr.<br />

Use the DGS command (see below) to verify that degas has been successfully initiated.<br />

DGS<br />

Definition: Display degas status.<br />

Modifiers: None<br />

Response: ASCII 1 if degas is on, 0 if degas is off.<br />

Example: From computer: DGS CRLF<br />

From <strong>360</strong>: 1CRLF<br />

DS<br />

Definition: Display pressure reading.<br />

Modifiers: IG1 or IG2 or IG or CG1 or CG2.<br />

Response: ASCII string representing the pressure for the selected gauge.<br />

Example: From computer: DS CG1 CRLF<br />

From <strong>360</strong>: 1.25E-03CRLF<br />

NOTES<br />

1. The DS CG1 and DS CG2 commands are used to display the pressures from the lower 2<br />

display lines with the Convectron Gauge Module installed.<br />

2. If the requested ion gauge is turned off, or is in its first few seconds of operation, or data is<br />

requested from a Convectron Gauge when none is installed, the Control Unit will return<br />

9.90E+09.<br />

The DS IG command will return pressure from the gauge which is on, and 9.99E+09 if neither<br />

is on<br />

IG1<br />

Definition: Turn IG1 on or off.<br />

Modifiers: ON or OFF<br />

Response: OK if command accepted, INVALID if rejected.<br />

Example: From computer: IG1 ONCRLF<br />

From <strong>360</strong>: OKCRLF<br />

<strong>Series</strong> <strong>360</strong> <strong>Stabil</strong>-<strong>Ion</strong> December, 2001<br />

4-28

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