8.4.5 Maintenance turbo pump and cell
Access: Menu [Maintenance] [Maintenance turbo pump and cell ]
Choice - Setting limit
1)
Filament To be selected
Filament selected for the measurement (2 filaments in the analyzer cell).
Filament 1
Filament 2
Stop and vent Function to be started
This function is used to shut down the secondary pump and to perform an inlet
vent so that the secondary pump and the analyzer cell are at atmospheric pres-
sure.
See below
-
1) Initial setting: see chapter “Tree diagram to the Settings menu”
Stop and vent
To carry out maintenance on a vacuum circuit component, the vacuum circuit of the detector must be at
atmospheric pressure.
1. Press [Stop and vent].
●
The turbomolecular pump slows to a speed that allows venting.
●
A message notifies the user when the leak detector can be shut down.
●
If the user does not wish to stop the detector, press [Restart leak detector]. The detector
start-up screen is displayed.
2. Stop the leak detector.
3. Wait until the control panel turns off completely and unplug the main power supply cable before
working on the detector.
8.4.6 Burn-in
This function is used to prepare the detector, leaving it in optimal working condition by automatically
carrying out a series of short tests and inlet vents between each test.
NOTICE
Risk of pollution
►
Before starting this function, make sure that the leak detector is in an environment free of tracer
gas pollution.
Access: Menu [Maintenance] [Burn-in]
Inlet vent Only available if the inlet vent is set to ‘Operator’.
Access the ‘Inlet vent’ menu
From the ‘Inlet vent’ menu, return to the ‘Burn-in’ menu by pressing [<].
Start without calib. Function to be started
Function launching
Series of tests and inlet vents
Start with calibration Function to be started
Test runs, inlet vents and calibrations
Available in hard vacuum test only
Stop Stop burn-in in progress
Prerequisites
●
Detector in ‘Stand-by’ mode
●
“Automatic” inlet vent selected
Procedure
1. Implement the preliminary conditions.
2. Install a blank-off flange on the detector’s inlet port.
3. Press [Start without calib.] or [Start with calib.].
4. Press [Stop] or the START/STOP button to stop the burn-in.
Settings menu
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