28 L Refrigerated & Heated Circulating Baths

Category Stirred / Circulating Baths
Manufacturer PolyScience
Country of manufacture the United States of America
Overview

Capable of reaching temperatures as low as -30°C, PolyScience Refrigerated/Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications.

Features

  • Working temperatures as low as -30°C and as high as +200°C
  • Temperature stabilities to ±0.005°C
  • Six controller types with large, intuitive displays and multiple communication options
  • Large bath openings and easy to clean surfaces
  • Swivel 180™ Rotating Controllers
  • LidDock™ self-stowing reservoir cover
  • DuraTop™ insulating, chemical-resistant top deck
  • WhisperCool™ Environmental Control System
  • Cool Command™ modulated refrigeration system
  • Reservoir drain
  • Washable air filter

PolyScience Refrigerated/Heated Circulators come with the following accessories:

  • Reservoir cover
  • Bypass tubing
  • Male inlet and outlet adapters for 3/8, 1/4, and 3/16" (.95, .63, and .47 cm) tubing
  • 6' (1.83m) standard grounded electrical cord.

Controller Comparison

Specifications and features for the PolyScience 28L Refrigerated & Heated Circulating Baths vary based on the controller chosen.  Some key specifications are in the table below, and additional features for each controller are listed on the tabs above. 

 

Performance Programmable

Advanced Programmable

Performance Digital

Advanced
Digital

Standard Digital

Temp. Range (°C)

-30 to +200

-30 to +200

-30 to +200

-30 to +200

-30 to +170

Cooling (@ 20°C)

915

915

915

915

915

Heating

1100 W

1100 W

1100 W

1100 W

1100 W

Temp. Stability

±0.005°C

±0.01°C

±0.005°C

±0.01°C

±0.04°C

Display

4.3" SmartTouch Touchscreen

4.3" SmartTouch Touchscreen

4.3" SmartTouch Touchscreen

3.75" Touch-Pad LCD

3.75" Touch-Pad LCD

Resolution Set/Read

0.01/0.001

0.01/0.001

0.01/0.001

0.01/0.01

0.1/0.1

Programmability

OpenMode - unlimited programs and steps

Ten 100-step programs

N/A

N/A

N/A

Included Software

PolyTemp, TDMS file, USB driver, PolyScience LabVIEW Virtual Instrument & Functions, Time/Temperature Program Generator, PolyTemp Remote iPhone application

PolyTemp, TDMS file, USB driver, Time/Temperature Program Generator, PolyTemp Remote iPhone application

PolyTemp, TDMS file, USB driver, PolyScience LabVIEW Virtual Instrument & Functions, PolyTemp Remote iPhone application

PolyTemp , USB driver

N/A

Temperature Calibration Capapility

10-point

5-point

10-point

1-point

1-point

Connectivity Options

Ethernet, USB, RS232/address RS485, Remote On/Off, External Temperature Probe

Ethernet, USB, RS232/address RS485, External Temperature Probe

Ethernet, USB, RS232/address RS485, Remote On/Off, External Temperature Probe

Ethernet, USB, RS232/address RS485, External Temperature Probe

RS232

External Temp. Control

OpenMode - unlimited programs and steps

Yes (probe not included)

Yes (Pt100 temperature probe included)

Yes (probe not included)

No

Pump

Pressure/Suction, Variable-Speed

Pressure/Suction, Variable-Speed

Pressure/Suction, Variable-Speed

Pressure/Suction, Variable-Speed

Pressure only, 2-speed

External Circulation

Open or closed loop

Open or closed loop

Open or closed loop

Open or closed loop

Closed loop

Max Pressure (psi)

4.3

4.3

4.3

4.3

3.5

Max Flow Rate

20.1

20.1

20.1

20.1

11

Hardware

PT100 temp. probe, USB drive, stainless steel hose adapters for 3/8", 1/4", and 3/16"

Nylon hose adapters for 3/8", 1/4", and 3/16"

PT100 temp. probe, USB drive, stainless steel hose adapters for 3/8", 1/4", and 3/16"

Nylon hose adapters for 3/8", 1/4", and 3/16"

Nylon hose adapters for 3/8", 1/4", and 3/16"

Safety Rating*

DIN 12876-1 Class III

DIN 12876-1 Class III

DIN 12876-1 Class III

DIN 12876-1 Class III

DIN 12876-1 Class I

*DIN 12876-1 Class III devices are rated for use with flammable liquids.  DIN 12876-1 Class I devices may be used with non-flammable liquids only.

Performance Programmable Controller Features

  • OpenMode time/temperature programming (no restrictions on number of programs or steps)
  • Intuitive 4.3" (10.9 cm) SmartTouch™ display
  • 11 languages: French, German, Spanish, Chinese, Portuguese, Russian, Hindi, Arabic, Italian, Korean, English
  • Variable speed pump with open- and closed-loop external circulation capability
  • Swivel 180™ Rotating Controller
  • On-board connectivity: USB-A & B, Ethernet, RS232/485, remote on/off and external temperature probe
  • Event scheduling (time & date) with real-time clock
  • Review temperature trends for up to 10 days
  • Multiple selectable home screens
  • On-screen help
  • Automatic and/or user-adjustable performance optimization
  • 10-point calibration capability
  • Includes Enhanced Performance Hardware & Software Package (Pt100 temperature probe, USB flash drive for data logging, stainless steel fittings and tubing adapters, PolyScience LabVIEW™ Virtual Instrument, iPhone® application download)
  • Available with DeviceNet/CANbus, Modbus, and Profibus options

Advanced Programmable Controller Features

  • Time/temperature programming (ten 100-step programs)
  • Intuitive 4.3” (10.9 cm) SmartTouch™ display
  • 6 languages: French, German, Spanish, Chinese, Arabic, English
  • Variable speed pump with open- and closed-loop external circulation capability
  • Swivel 180™ Rotating Controller
  • On-board connectivity: USB-A & B, Ethernet, RS232/485, and external temperature probe
  • Event scheduling (time & date) with real-time clock
  • Review temperature trends for up to 10 days
  • Multiple selectable “home” screens
  • On-screen help
  • Automatic and/or user-adjustable performance optimization
  • 5-point calibration capability

Performance Digital Controller Features

  • Intuitive 4.3” (10.9 cm) SmartTouch™ display
  • 11 languages: French, German, Spanish, Chinese, Portuguese, Russian, Hindi, Arabic, Italian, Korean, English
  • Variable speed pump with open- and closed-loop external circulation capability
  • Swivel 180™ Rotating Controller
  • On-board connectivity: USB-A & B, Ethernet, RS232/485, remote on/off and external temperature probe
  • Event scheduling (time & date) with real-time clock
  • Review temperature trends for up to 10 days
  • Multiple selectable “home” screens
  • On-screen help
  • Automatic and/or user-adjustable performance optimization
  • 10-point calibration capability
  • Includes Enhanced Performance Hardware & Software Package (Pt100 temperature probe, USB flash drive for data logging, stainless steel fittings and tubing adapters, PolyScience LabVIEW™ Virtual Instrument, iPhone® application download)
  • Available with DeviceNet/CANbus, Modbus, and Profibus options

Advanced Digital Controller Features

  • Intuitive 3.75” (9.5 cm) display with touch-pad control
  • 4 languages: French, German, Spanish, English
  • Swivel 180™ Rotating Controller
  • On-board connectivity: USB-A & B, Ethernet, RS232/485, and external temperature probe
  • On-screen prompts
  • Automatic performance optimization and specific heat tuning
  • Single-point calibration capability

Standard Digital Controller Features

  • Large, universal icon and English display
  • Swivel 180™ Rotating Controller
  • On-board connectivity: RS232 serial output
  • On-screen prompts
  • Automatic performance optimization
  • Single-point calibration capability

 

Please note: Polyscience Refrigerated & Heated Circulating Baths are manufactured at the time the order is placed and have a 2-3 week lead time.

Key Attributes

Type

Stirred / Circulating Baths

Incubation

Yes

Refrigeration

Yes

Temp Range (°C)

Ambient -30 to 200

Capacity (L)

28

Circulation Internal & External

Brand

PolyScience

MaxFlow Rate (l/min)

20.1, 11

Temp Stability (°C)

±0.005, ±0.01, ±0.04

Timer

Yes

Alarms

Yes

Digital or Mechanical

Digital

Data connection

Yes

Tank Material

Stainless Steel

Sample Agitation

No

Media Racks Available

No

Warranty (years)

2

Weight (lb)

146

Width (in)

26.5

Depth (in)

18

Height (in)

26.9

 

Manufacturer specifications

Common specifications 

See 'Controller Comparison' tab for controller specifics such as: working temp, nominal cooling capacity, temp stability, display resolution, pump specs, temperature calibration and control, programming specs, and safety class information.

Reservoir Capacity (liters)

28

Reservoir/Tank Material

Stainless Steel

Reservoir Cover

Included

DuraTop/LidDock/Cleanable Air Filter  

Yes

Working Access (L x W x D) (inches)

12.35 x 14.13 x 5.5

Over-Temperature Protection / Failsafe Heater Control

Yes

Low Liquid Level Protection

Yes

WhisperCool Environmental Control Technology

Yes

Cool Command Refrigeration Technology

Yes

Reservoir Drain

Yes

Fluid Optimization/Specific Heat Tuning

Automatic and/or user-adjustable

Maximum Ambient Temperature °C

35

Overall Dimensions (L x W x H) (inches)

26.5 x 18 x 26.9

Refrigerant

R404A

Maximum Suction Flow Rate (l/min)

14.7 (excludes SD model)

Cooling Capacity @ -20°C (W)

165

Cooling Capacity @ 0°C (W)

505

Cooling Capacity @ +20°C (W)

915

Cooling Capacity @ +100°C (W)

915 

Heater Wattage

1100

Electrical Requirements (VAC/Hz/Ph/A)

120/60/1/13

Regulatory Approvals

ETL

Shipping Weight (pounds)

146

FAQ

I would like to perform a heating / cooling program where the temperature ramps from one set point to another over time. Are the PolyScience 28 L Refrigerated & Heated Circulating Baths capable of this?

That depends on the controller used. Only the Advanced Programmable and Performance Programmable controllers can be programmed to perform ramps.

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