Micromeritics DVVA II 4000, Operator'S Manual

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DVVA II 4000 Appendix A
400-42803-01 (Rev B) - July 2017 A-19
6023- The Height Scale calibration failed. Please check that the chamber contains only
the calibration standard, that the length of the standard was entered correctly, and
that the piston tips are clean and undamaged.
6024- Unable to drive upper piston. Check the condition and contents of the chamber,
and that the instrument is enabled.
Cause A:
The sample chamber contains sample or debris.
Action A:
Select
Unit > Clean System
to clean the system; then load the calibra-
tion standard and repeat the calibration.
Cause B:
The length of the calibration standard was not entered correctly.
Action B:
Enter the length stamped on the calibration standard.
Cause C:
A piston tip is damaged or very dirty.
Action C:
Clean or replace the piston tip.
Cause A:
Debris is in the chamber.
Action A:
Select
Unit > Clean System
to clean the system. The chamber should be
empty for the blank analysis. Do not load the sample until prompted to
do so.
Cause B:
One of the safety interlocks was triggered.
Action B:
Ensure that the safety shield for the sample compartment is completely
down, and that the front drawer is completely closed. Then press the
Reset
button.
Turn the red
Emergency Stop
button clockwise to reset it, then press the
Reset
button.