Cryogenic Autotune Temperature Controllers

CYC320 Series

Cryogenic Temperature Controllers

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Autotune PID
For Temperature Control from 1.4 to 800K
Electronic Accuracy and Control Stability to ±0.1°C
Autotuning–PID Parameters Automatically Determined
Manual Tuning of PID Parameters via Front Panel
Silicon Diode, 100 ohm Pt RTD, or Thermocouple Input
Ability to Store One User Defined Calibration Curve
RS-232C Communications Standard
25 Watt dc Heater Output
Small Rack Mount Package
Isolated Current Source Allows True 4-Wire Sensor Readings For High Instrument Accuracy

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商品説明

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.