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Instructions for Use
Figure 14 Helium Background Timer
When calibration is complete, the leak detector reverts to Fine Test mode.
NOTE
Shutdown Procedure
The system can be in any mode when shut down. When the system is shut down,
all valves in the system close. If the system is not in Vent mode, the test port
remains under vacuum and may be difficult to open:
To do a shutdown:
A soft power shut down (CPU and Electronics and Turbo Pump) is highly
CAUTION
recommended before shutting off the main power switch (circuit breaker).
1
Go to the Menu Tab.
2
Select Turn Off.
Do not turn off the main power switch until the power down status bar is complete
NOTE
and final power off message is accepted (OK).
To do a hard shut down of the leak detector for 24 VDC power supply and primary
pump:
Move the power switch on the rear panel to the
Agilent Helium Leak Detector User Manual
°
position.
37
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