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QUI-1122
Page 32
Markes International Ltd
T:
+44 (0)1443 230935
F:
+44 (0)1443 231531
www.markes.com
5.
Installation qualification
5.1
Leak Testing
Right-click on the Instrument Status Icon and select ‘Direct Control’.
Load a tube into the tube oven and then click ‘Pressurise’ in the Manual Leak Test section. Once the
pressure in the Markes TD status has stabilised, click ‘Leak Test’. Ensure the pressure does not fall at this
stage to confirm the UNITY–Air Server-xr is leak tight. Should the pressure fall, then a leak checking
procedure should commence using a helium leak detector to determine the source of the leak. Resolve
and re-test. Once the instrument is demonstrated to be leak tight, the cold trap should be conditioned.
5.2
Conditioning the cold trap
CAUTION
:
Do not exceed the cold trap temperature limits when conditioning the cold trap. Refer to
the Trap Certificate supplied with the cold trap to confirm the maximum temperatures.
Click the Method Editor tile on the MIC home screen, open the Template Methods folder in the top left
corner and choose the ‘TD-Trap Heat’ method to modify.