PerkinElmer CLARUS 590 GC, Руководство пользователя

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Setting Up Oven and Inlet Temperature Programs . 65
Setting a Coolant Timeout Value
The purpose of the coolant timeout value is to conserve coolant. If you select a coolant timeout value
when you configure the Clarus GC, the coolant solenoid shuts off if a GC run is not started within this time
period after the oven becomes "READY" (reaches the initial set temperature). Once the coolant shuts off,
the Clarus GC remains not ready and the following message will appear, Coolant Timed Out:Touch OK
to Continue .
NOTE: The coolant timeout must be greater than the equilibration time.
When you press OK , the coolant solenoid will then operate again and the oven will cool to the initial
temperature.
NOTE: When using a POC or PSS injector with the subambient accessory, the injector temperature must not be set
below the oven temperature. You can minimize coolant consumption if using the oven subambient with the
PSS or POC installed but not being used, by deconfiguring the PSS or POC.
Setting a Coolant Cut-In Temperature
The coolant cut-in temperature is the temperature below which the coolant starts to cool the oven. The
default temperature is 60 ° C. The allowable cut-in temperature range is 30 ° C - 110 ° C. We recommend
that for every
°
C above a room temperature of 20
°
C, you increase the cut-in temperature by 1
°
C.
For example: A room temperature of 20 ° C uses a default temperature of 60 ° C, whereas a room
temperature of 25 ° C uses a 65 ° C cut-in temperature. Examples for setting up isothermal, 1, and 2 ramp
programs follow.
NOTE: Higher cut-in temperatures cause more coolant to be consumed, but can cool the oven to the initial
temperature more rapidly.
Setting Up an Isothermal Program
Setting up an isothermal program requires entering the following information in the sequence shown:
• Initial oven temperature (Temp 1)
•
The total run time for the initial temperature (Time 1)
•
A temperature rate increase of 0 (Rate 1).