The CYC321 Series Cryogenic Temperature Controllers offer a simple, low cost answer to basic low temperature control needs. They incorporate a scroll type entry so that setup can easily be accomplished from the front keypad. Three models are available to accommodate either silicone diode, RTD or thermocouple input. The operator can also enter a user-defined curve, for a custom sensor. This curve can have up to 97 points plus two end points. The curve values are entered over the standard RS-232 interface.
A cryogenic system is a complex arrangement of thermal resistances and heat capacities which are represented by thermal mass and time constants.
The CYC321 Series analyzes this system’s operating parameters on-line. The Autotune feature increases the user’s efficiency by automatically calculating the correct proportional (gain), integral (reset) and derivative (rate) control parameters within minutes. Once set, the PID values are only modified when the system characteristics change. Time spent adjusting or fine-tuning the controller is eliminated, leaving the user with more time to experiment with something other than controller settings! Heater output of the CYC231 Series is a variable dc current for quiet, stable control.
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† All amounts shown in EUR, GBP, or USD Note: Each unit supplied with sensor input connector power cord, double banana plug for heater output and operator’s manual.