Micromeritics TriStar II 3020 Operator's Manual page 306

Appendix B
6034- Zeroing of a transducer failed. Analysis Canceled.
Cause:
Action:
6035- Purification of krypton in the Psat tube failed.
Cause A:
Action A1:
Action A2:
Cause: B:
Action B:
6040- Failed to reach pressure dosing through servo. Calibration canceled.
Cause A:
Action A:
Cause B:
Action B:
B-34
The transducer did not respond correctly.
Contact your Micromeritics service representative.
Krypton pressures in the psat tube did not stabilize after the
purification steps.
Evacuate the krypton gas inlet line.
Manually verify the saturation pressure of the krypton gas:
1. Evacuate the psat tube.
2. Backfill with krypton gas to 20 mmHg.
3. Raise the Dewar.
These steps should condense the krypton gas to a pressure below 
3 mmHg.
The Dewar does not contain enough cryogen.
Refill the Dewar.
There was insufficient gas pressure to calibrate for matching
transducers. The gas is not connected or the tank is almost empty.
Ensure the gas is connected properly and assigned correctly in the
Unit Configuration window. Replace the tank if necessary.
The gas valve is not working properly.
Contact a Micromeritics service representative if this error message
continues.
TriStar II 3020
302-42828-01 - Dec 2013