Perform other diagnostic tests and functions
July 29, 2013, 715003794 Rev. B 241
Complete these tasks before you perform the test:
• Remove all carousels and vials from the sample compartment.
• Confirm that the column heater or column heater/cooler (if installed) is
not in use.
To run the defrost sample heater/cooler function:
1. In the Other Diagnostics screen, select Defrost, and then press OK.
2. Press Start.
3. Open the sample compartment door when you are prompted.
Requirement: To complete this procedure, the sample compartment door
must remain open during the entire procedure.
When the procedure ends, the Defrost Sample Heater/Cooler screen indicates
so and prompts you to close the sample compartment door.
Column heater or column heater/cooler test
The column heater (or column heater/cooler) test tests the column heater or
column heater/cooler for proper functioning by increasing the temperature in
the column heater.
You can monitor the column heater or column heater/cooler temperature by
connecting a chart recorder to the Chart Out terminals on the rear panel of
the separations module.
Before you perform the column heater (or column heater/cooler) test, confirm
these things:
• The sample heater/cooler is not in use.
• The sample compartment temperature is between 18 and 28 °C.
Requirement: To ensure the accuracy of this test, do not open the column
heater or column heater/cooler door during the test.
To perform the column heater or column heater/cooler test:
1. In the Other Diagnostics screen, select Column heater (or Column
heater/cooler), and then press OK.
2. On the Column Heater or Column Heater/Cooler Diagnostic screen,
press Start.
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