Varian 947 Instruction Manual - Draf
Service Pendant Hand-Held Terminal
DRAF
T 2/4/02
5
Example 2 – Check and Set the Value of the Crossover (Transfer) Pressure to Fine Test
The pressure at which a test transfers to fine (or gross) test can be set and verified using the
pendant. The value can also be verified on the test port pressure display on the front panel.
1. Verify the current fine test transfer value.
❑
Press:
The pendant displays the current value and ends the string with ok.
2. Set the fine test transfer point to 5.0E
−
2.
❑
Press the following keys in order from left to right to enter the value:
The system displays an INIT string, including the value, and ends the string with ok.
3. Verify the fine test transfer value.
a. Using the pendant:
❑
Press:
The pendant displays the current value and ends the string with ok.
b. On the leak detector front panel:
❑
Place the test mode switch to AUTO
❑
Press and hold the Display button
The test port pressure bar graph display will show the transfer value (in this case,
50 mTorr).
SET
FN XFR
SHOW
5
.
0
E
SHIFT
_
.
2
SHIFT
SET
FN XFR
SHOW
SET
FN XFR
SHOW