DVVA II 4000
Troubleshooting
400-42803-01 (Rev B) - July 2017
9-3
Problem
Cause
Solution
Lower piston motor reports
errors
The sample is exerting a high
residual force on the lower
piston after sample
compaction.
Use the provided pellet
removal tool to break up the
compacted sample in the
sample chamber, then manually
lower the lower piston to the
tray-loading position. Refer to
“Lower Piston Release
Procedure” on page 9-8.
The lower piston tip is not
securely affixed to the lower
piston in the sample tray.
Moderately tighten the lower
piston tip.
The lower piston tip is worn or
damaged.
Replace with a new tip.
The wrong tray is inserted in
the analyzer.
Insert the correct tray.
Readings in the instrument
schematic display all zeros.
The DVAA II 4000 was not
recognized by Windows,
preventing the data acquisition
drivers from loading.
Perform
“Full Power-On
Procedure” on page 9-4.
Piston will not move
Manual control is not enabled
Select
Unit > Enable manual
control
.
You forgot to press
Reset
.
Press
Reset
.
One of the piston circuit
breakers has tripped.
Wait a few minutes and reset
the breaker.
The opposing piston is not in
the proper position.
Select
Unit > Enable manual
control
and move the piston to
the proper position.
Summary of Contents for DVVA II 4000
Page 1: ...DVVA II 4000 Dynamic Void Volume Analyzer Operator s Manual Rev B 400 42803 01 July 2017 ...
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