Cryo-con Model 24C Preparing the controller for use
Initial Setup and Configuration
Before attempting to control temperature, the following instrument parameters should
be checked:
1. The Loop #1Heater resistance setting should match the actual heater
resistance that you are going to use. Choices are 50 and 25. A heater
resistance of less than 25 should use the 25 setting. Using the 50
setting with a heater resistance much less than 50 may cause the
instrument to overheat and disengage the control loops.
Set the heater resistance by pressing the Loop 1 key and refer to the Loop
Configuration Menu section.
2. The Loop #1 heater range should be set to a range where the maximum
output power will not damage the equipment. To set this parameter, press the
Loop 1 key and refer to the Loop Configuration Menu section.
3. The controller has an over-temperature disconnect feature that monitors a
selected input and will disconnect both control loops if the specified
temperature is exceeded. This feature should be enabled in order to protect
your equipment from being over heated. To enable, press the System key
and refer to the System Functions Menu section.
i NOTE: Factory defaults may be restored at any time by use of
the following sequence: 1) Turn AC power OFF. 2) Press and hold
the Enter key while turning power back ON. This sequence will
restore factory defaults including resetting user supplied sensor
calibration curves and saved user configurations. However, it will
NOT erase the instrument’s internal calibration data.
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