Sample test errors
Occasionally a test will not run to completion and your instrument will
display an error message. Refer to the Troubleshooting Table, Appendix
A at the end of this user’s guide for an explanation of a particular mes-
sage.
NOTE If a Sample Prefreeze error is reported when testing low mOsm
samples using the Full Range, switch to the Low Range and
test another sample.
Changing operating settings
Your A
2
O has been set up at the factory to operate using a set of default
parameters. Use the Test Setup and the System Configuration screens
as described in Chapter 5 to change the date and time or other parame-
ters for your particular usage.
NOTE Several of the buttons on the Test Setup and the System
Configuration screens can only be accessed by a user with
Supervisor privileges.
35
Instrument Operation
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