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product arrow MODEL 7312


Progammable Model 7312

The full-featured PolyScience Programmable Controller, combined with circulator placement flexibility, makes this "design your own bath" circulator a great value. Microprocessor PID control assures high accuracy and stability.

The Programmable Controller features a multi-language graphic display and time/temperature programming. Ten programs can be stored in the controller's memory; each can have up to fifty steps and can be cycled up to 99 times. An RS232 interface and remote probe capability are standard. The included software supports LabView™ drivers and Excel® macros to offer even greater programming and data logging convenience.

For internal circulation or external open and closed loop applications, the 7312 has a strong pressure and suction (duplex) pump with variable speed control. The optional remote probe gives more accurate temperature control in applications where external circulation is required.

The expandable mounting bridge spans openings from 15 to 25 in. across to allow placement on almost any bath container. Choose from PolyScience's selection of stainless steel or acrylic baths or use your own reservoir.


Time / Temperature


RS-232 Interface

RS-232 Cable

Remote Probe Capability

7312 Specifications
Temperature Range*
Ambient +5º to 200ºC*
Temperature Stability*
± 0.01ºC
Controller/RS232 Programmable/yes
Readout Graphics LCD
Temperature Readout ºC or ºF
Pressure Flow 30 lpm max. (60 Hz)
22 lpm max. (50 Hz)
Suction Flow 22 lpm max. (60Hz)
15 lpm max. (50Hz)
Tank Occupancy, Approx. 7½ x 8¾ in.
Immersion Min. 2½ in. / 7 cm
Max.4½ in. / 11.4 cm
Overall Dimensions l x w x h 11¼ x 15 x 9½ in.
28.6 x 38x 24.2 cm
Heater 60Hz/1100 Watts, 50Hz/2200 Watts
Over-Temperature Cutoff Adjustable
Low-Liquid Cutoff Yes
Pump Inlet & Outlet 1/4 in. FPT Rear Discharge
Shipping Weight 24 lbs. / 11kg
Cat. No. 120V, 60Hz, 11A 7312A11B
Cat. No. 240V, 50/60Hz, 9.7A
*Temperature range and stability vary depending on bath volume, surface area, insulation and type of fluid.
Notes: Performance specifications determined at ambient temperature of 20ºC/68ºF.