PolyScience Refrigerated and Heating Circulators

Precise Control and Exceptional Stability

All circulators feature accurate microprocessor control. Choose your readouts are available in °C or °F.
Standard Controllers include digital set and read to 0.1°C at a price near analog technology. Its stability of ±0.05°C plus temperature control up to 150°C are excellent for many applications. Operation is simple with one select/set knob and three temperature preset buttons. Bright LED shows fluid temperature continuously. It’s quick and easy to choose temperature units, calibration values and setting high limit temperatures. All Standard Controllers have a 2-speed pressure (simplex) pump suitable for closed loop applications. Low pump speed is quiet and provides longer motor life; high speed is preferable for more difficult pumping requirements.
Digital Controllers provide outstanding performance for demanding applications and temperature control up to 200°C with ±0.01°C stability. Full-graphic display with multilanguage help menus. The powerful microprocessor controller can be tuned to optimize PID performance for various fluids and volumes. Includes user-settable high and low safety limits, redundant over-temperature and low-liquid level cutoffs. Equipped with a variable-speed pressure/suction (duplex) pump, the Digital Controller may be used for either open or closed loop applications. RS-232 interface is standard.