The Advanced
®
Osmometer Model 3320 Service Manual
38
5. "Parameter RAM
Failed" or "No
Parameters in RAM"
6. "Recalibration Needed"
7. Results not repeatable
(too scattered)
8. "Sample Did Not
Freeze..."
9. "Sample Pre-freeze..."
10. "Sample Probe Open?"
Switch the instrument off, wait 10 sec-
onds, then on.
Calibrate the instrument.
Were the sample cell and sampler clean
for each test?
Is the sampler plunger wire replaced
every 500 tests?
Is the sampler properly calibrated?
Has solenoid become loose?
Impacts Occurred
• Was the sample configuration correct?
• Refer to the instructions supplied with
the sampler.
• Is the block probe bin number cor-
rect?
No Impacts
Check the impactor solenoid by running
the solenoid test.
Was the sample chamber clean?
Is the sample probe bin number correct?
Switch the instrument off, then on.
Check the sample probe by running the
A/D tests.
Check the probe by using an ohmmeter.
Probe should be approximately 2000
ohms at room temperature.
Possible battery replacement required.
If the problem persists, contact our
product service department for assis-
tance.
Recalibrate.
If this message is combined with mes-
sage #5 above, that is your primary
problem.
Replace and calibrate the plunger wire
according to the instructions supplied
with the sampler.
Calibrate the sampler according to the
instructions supplied.
Tighten the solenoid.
Impacts Occurred
• Retry the test.
• Check/correct the probe bin number.
No Impacts
• Retry the test.
• Please refer to the solenoid cleaning
procedure in this manual.
• If the problem persists, contact our
product service department for assis-
tance.
Clean the cooling chamber, and then
retest.
Check/correct the probe bin number.
If the problem persists, contact our
product service department for assis-
tance.
If the error message does not persist
and other messages are not displayed,
ignore this message.
If the problem persists, contact our
product service department for assis-
tance.
Symptom Check Suggested Action
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