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 999 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 five selectable speeds. 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.

Standard Model 7306
The PID microprocessor controller provides precise temperature control and greater temperature stability. The 2-speed pressure (simplex) pump minimizes turbulence in small tanks and provide higher flow and greater uniformity in large tanks. An adjustable flow director accepts 1/2 in. (13mm) ID tubing for external circulation.

Analog Model 712
This low-cost circulator offers good temperature control for routine lab applications. Proportional heater control combined with redundant safety backup makes this analog model an excellent value. The 2-speed pressure (simplex) pump minimizes turbulence in small tanks and can provide higher flow and greater uniformity in large tanks. Temperature readout is via the supplied thermometer(alcohol).

Range	7312: 86°F to 392°F (30°C to 200°C) 7306: 86°F to 302°F (30°C to 150°C) 712: 86°F to 212°F (30°C to 100°C)
Over Temperature Cutoff	Adjustable
Low-Liquid Cutoff	Yes
Stability	7312: ±0.01°C 7306: ±0.05°C 712: ±0.2°C
Controller	7312: Programmable 7306: Standard 712: Analog
Computer I/O	7312: RS232 7306 & 712: N/A
Readout	7312: Graphic LCD, °C or °F 7306: LED, °C or °F 712: Thermometer (supplied)
Pressure Flow Rate	7312: 5-speed, 12 to 25 lpm 7306 & 712: 2-speed, 9 or 15 lpm
Suction Flow Rate	7312: 5-speed, 8 to 18 lpm 7306 & 712: N/A
Heater	60Hz: 1100 Watts 50Hz: 2200 Watts
Immersion	7312: Min: 2.5in. / 7cm, Max: 4.5in. / 11.4cm 7306 & 712: Min: 3 in. / 7.6cm, Max: 7in. / 17.8cm
Tank Occupancy (approx)	7312: 7.5 x 8.75in. (19.1 x 22.2cm) 7306 & 712: 6.5 x 4.75in. (16.5 x 12.1cm)
Dimensions	7312: 11.25 x 15 x 9.5in. (28.6 x 38 x 24.2cm) 7306 & 712: 12.25 x 4.625 x 5.75in. (31.2 x 11.7 x 14.6cm)
Weight	7312: 24 lbs (11kg) 7306 & 712: 11 lbs (5kg)
Pump Inletand Outlet	1/4in. FPT Rear Discharge

*Note: Performance specifications determined at ambient temp of 20°C/68°F.
For 50Hz units, derate cooling capacity by 17%
For Cooling Capacity (Watts x 3.41) = BTU/hr.

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Select the right contoller type for your application.
Click here to view comparison chart

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Monitor bath stability to ±0.01° with a NIST-Traceable Reference Thermometer

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Don't forget the Bath Fluid
Choose the best fluid for your temperature range. We carry bath fluids that work from -100 to 550°C.

To Order:

7312A11B/A12E	7312 Programmable Immersion Circulator	7312A11B - 120V 7312A12E - 240V
7306A11B/A12E	7306 Standard Immersion Circulator	7306A11B - 120V 7306A12E - 240V
73A0A11B/A12E	712 Analog Immersion Circulator	73A0A11B - 120V 73A0A12E - 240V