TriStar II 3020 Scheduled Maintenance Instructions Operational Verification
Jun 09 29
Operational Verification
Performing a Blank Analysis
1. Install blank tubes with filler rods and isothermal jackets into each of the sample ports.
Be sure to use new O-rings on the sample tubes. Make sure the Dewar cover is attached.
(Verify that the isothermal jacket and filler rods are checked as being used in the sample
tube file.)
2. Fill the Dewar with LN
2
and check the level using the dipstick.
O-ring
Ferrule
Sample port nut
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