Troubleshooting
DVVA II 4000
9-2
400-42803-01 (Rev B) - July 2017
Problem
Cause
Solution
Inconsistent results when
conditioning the tip
Different amounts of the
sample were used.
Use 1.0000 gram, ± 0.05
(determined to nearest 0.0001
gram) of sample for each
analysis.
The same type of sample was
not used for all analyses.
Use the same type of sample
for all analyses.
All samples were not prepared
in the same manner.
Use the same preparation
method for all samples.
The piston tip is not securely
affixed to the piston.
Moderately tighten the tip
using a 3/8-in. wrench.
The upper or lower piston tip is
dirty.
Wipe the piston tips with a
Kimwipe or paper towel
between each blank analysis
and each sample analysis.
The piston tip is damaged.
Replace with a new tip and
perform the conditioning
procedure.
Not enough sample runs have
been performed.
Perform additional sample
runs.
Содержание DVVA II 4000
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