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PolyScience Refrigerated Circulating Baths w/Standard Temperature Controller - SD28R-30-A11B


PolyScience Refrigerated Circulating Baths w/Standard Temperature Controller combine innovative design with highly intuitive operation to deliver reliable temperature control for a wide range of laboratory applications.
Set and read to 0.1°C, 170°C maximum temperature, ±0.04°C temperature stability, and a 2-speed pump make the Standard Digital Temperature Controller an economical and reliable choice for a variety of laboratory applications, including those requiring closed-loop external circulation. Cool Command™ functionality permits faster cool downs from high temperatures.
RS232 serial communication capability allows control and data logging via a PC or other remote device.
Plain-text prompts and intuitive controls guide you quickly through setup. Intelligent touch and scroll display makes it easy to make both large and small set-point adjustments.
User-settable high-temperature safety provides over-temperature and lowliquid-level protection, and adjustable high and low limits guard against unintended set-point changes.

  • Intuitive 3.75" (9.5 cm) display with touch-pad control
  • 2-speed pressure pump with external (closed-loop) circulation capability
  • Swivel 180™ rotating controller
  • LidDock™ self-stowing reservoir cover
  • DuraTop™ insulating, chemical-resistant top deck
  • WhisperCool™ environmental control system
  • Cool Command™ modulated refrigeration system
  • RS232 on-board connectivity
  • Automatic performance optimization
  • User-adjustable high and low temperature limits and alarms
  • Single-point calibration
  • Complies with DIN 12876-1 Class I safety requirements for use with non-flammable liquids
  • cETLus and CE approved
Part Number: SD28R-30-A11B
Attribute nameAttribute value


Model :SD28R-30
Capacity :28 L
Temperature Range :-30° to 170° C
Temperature Stability :±0.04°C
Cooling Capacity :915 W @ 20°C
Maximum Pressure :3.5 psi / 0.24 bar
Maximum Flow Rate :2.9 gpm / 11.0 lpm
Internal Dimensions LxWxH :12.35" x 14.13" x 5.5" / 31.4 x 35.9 x 14 cm
External Dimensions LxWxH :26.5" x 18" x 26.9" / 67.2 x 45.7 x 68.3 cm
Power :120V/60Hz/1100W