2.3 Starting the MS-40 Leak Detector
The MS-40 is started from the User Panel simply by pressing the ON/OFF
(I/O) switch. During the three-minute Start-up mode, the following will
occur within the unit:
1 The unit will activate a self-diagnostic routine.
2 The fore-line area will be pumped down.
3 The turbo-molecular pump will spin up to its rated speed.
4 If the filament was on when the unit was last turned off, the
filament will be on again at the end of the start-up mode. If the
filament was off when the unit was turned off, the user will
have to press the FIL ON momentary switch to turn on the
filament.
NOTE:
During the start up procedure, all LED’s on the User Panel will be tested
by being sequentially lit.
When the Start-up mode has been completed, the Automatic Ranging
indicator will be lit, the test port measurement gauge will be activated, the
User Panel numeric display will indicate 4 and the READY light
indicator will be lit.
Pre-Testing Start-Up Procedure:
Ensure that all connections are secure and all utilities are available. Check
that:
• A.C. power is connected.
• A helium supply source is ready and available (if
applicable).
• There is a sufficient supply of oil in both the internal and
external rough pumps
• All external accessories are properly connected.
Vacuum Instrument Corp.
2099 Ninth Avenue
Ronkonkoma, NY 11779
631.737.0900
1109-186-00 Rev. C 2-19
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