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Advanced
™
Osmometer Model 3250 User’s Guide
2. Recall results
The recall results feature of the Model 3250 allows you to display and
print the results of your last 30 tests. If you need to see any or all of
these results, take the following steps.
1. At Osmometer Ready, press the TEST key to enter the diagnostic
test menu.
2. Use the > or < keys to cycle through your choices until you see
Recall Results.
3. Press START to enter the recall results mode. Your instrument will
display and print the data of the most recent test result.
4. Use the > or < keys to see the results stored in the recall buffer.
5. Continue in this manner until you have recalled the necessary
results. For example:
#30 09/06/2005 01:04:29 PM
ID NONE
Result = 903 mOsm
6. To return to the diagnostic menu, press the STOP key.
7. To return to Osmometer Ready, press the STOP key again.
3. A/D Tests
This set of tests may be used to test the block probe, the cooling
assembly and the sample probe. The A/D tests may also be used
to check the accuracy of the A/D conversion channel or to monitor
the A/D channel for drift over time or temperature (by temporarily
replacing the sample probe with a precision resistor).
On entry, the A/D tests will display [Start] Ready?.
1. At [Start] Ready?, pipette or measure a sample of 1500 or 3000
m°C standard into a sample tube, place the tube in the freezing
chamber, and press the START key.
On entry, the A/D tests display the target cooling block
temperature, the channel being read, and the current channel
reading or duty cycle.
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