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CS100
Control System
Thermocouple Open Alarm
A problem exists with the temperature sensor (thermocouple). The control detects an open circuit, meaning that
the sensor is unplugged or the sensor assembly has been damaged.
Power Failure
No Power.
Low LN2 Supply Alarm
A problem may exist with the LN
2
supply connected to the freezer. This alarm occurs if the freezer does not fill
within the designated amount of time determined by the setting on the control. This may occur for a number of
reasons including an empty supply cylinder, low pressure in the supply cylinder or a closed shut off valve.
Temp Alarm Delay
This is the amount of time after a warm temperature is detected before the control goes into alarm.
Audible Alarm Retrigger
The audible alarm is retriggered if the error condition that caused it is not corrected. The retrigger time can be
adjusted by the user.
Remote Alarm Delay
The control provides a relay to provide an external signal that an alarm condition has occurred. The user
can set the remote alarm timer that determines the amount of time an error must be active before the relay is
triggered.
All alarms include the following:
• The LED array screen flashes to signal an error condition
• An audible tone sounds
• The error detected is displayed and scrolled on the screen
• The remote alarm relay changes state to provide a dry contact output signal
Solenoid Valve
These units are designed to work with 12 VDC solenoid valve.
Thermocouples
Type T thermocouples monitor the temperature in the freezer. The user may choose to use NONE, 1
thermocouples with this control at any time. (The unit comes complete with one Thermocouple.)
Operation
Содержание CS100
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