Micromeritics TRISTAR II PLUS User Manual

11 TROUBLESHOOTING
The analyzer has been designed to provide efficient and continuous service; however, certain
maintenance procedures should be followed to obtain the best results over the longest period of
time. When unexpected results occur, some common operational problems not indicated on the
window and their respective causes and solutions are provided.
The following can be found on the Micromeritics web page (www.micromeritics.com).
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Error Messages document (PDF)
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Parts and Accessories
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SmartVacPrep Operator Manual (PDF)
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Vacuum Pump Guide (PDF)
Most operational problems are caused by:
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Leaks (commonly found at the sample tube O-ring at the analysis port)
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Sample weighing errors
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Use of too much analysis bath fluid in the Dewar at the start of an analysis
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Entry of incorrect system volume for analysis
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Impure gas supply
When unexpected analysis results occur, check the above first. Some common operational
problems not indicated on the window and their respective causes and solutions are provided
below:
Elevator cannot be raised or lowered.
Cause: Dewar elevator stuck.
Action: Check for possible obstruction to elevator movement.
Elevator is noisy.
Cause: The elevator screw may need greasing.
Action: Contact your Micromeritics Service Representative.
Sample is not within specifications.
Cause A: There may be a manifold leak.
Action A: Run a manifold leak test. See Diagnostics on page9 - 1.
11 Troubleshooting
TriStar II Plus Operator Manual
303-42800-01 (Rev M ) — Sep 2023
11 - 1

Micromeritics TRISTAR II PLUS Specifications

General

Brand	Micromeritics
Model	TRISTAR II PLUS
Category	Measuring Instruments
Language	English