TE-3000 Sub-Zero Constant Temperature Bath

CANNON product

ASTM D445/D446, ISO 3104/3105. The microprocessor-controlled TE-3000 series constant temperature bath, with integrated thermoelectric cooling, accommodates viscometer tubes requiring a bath depth up to 12″ and provides reliable temperature control from −30 °C to 30 °C. 

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This Thermoelectric Constant Temperature Bath provides accurate temperature control between –30°C and +30°C, meeting the requirements of ASTM D 445 for measurement of kinematic viscosity at low temperatures. The low temperatures are obtained by built-in air-cooled Peltier cells which provide thermoelectric cooling.

No external refrigeration unit or air/water heat exchanger is needed.


Common Applications

  • Formulated oil analysis
  • Hydraulic oil analysis
  • Additive analysis
  • Marine fuel testing
  • Base stock analysis
  • Light and heavy fuel testing
  • Waxes/paraffin
  • Crude oil testing
  • Glycols

Additional information


Residual Fuel




ASTM D445, ASTM D446, ISO 3104, ISO 3105

Features & Benefits

Precise and accurate temperature control

  • Temperature range: −30 °C to 30 °C ± 0.01 °C
  • Meets ASTM D445 temperature sensitivity requirements for low temperature kinematic viscosity

Microprocessor-controlled temperature regulation & networking capabilities

  • Desired bath temperature and calibration temperatures are digitally entered on the front panel keypad
  • Integrated microprocessor automatically regulates bath temperature
  • Both target and actual bath temperatures are monitored by an RTD temperature probe and continuously displayed in °C or °F on the LCD screen
  • RS-232 and RS-485 communication ports provide data acquisition and multi-unit networking capabilities

Compact, user-friendly design

  • Environmentally-friendly, integrated thermoelectric air cooling requires no external refrigeration or air/water heat exhangers
  • Two glass vicometer ports (each 2″ in diameter) and one thermometer port (0.4″ in diamter) allow up to 2 simultaneous viscosity determinations
  • Baffle within the aluminum bath vessel facilitates circulation for uniform bath temerature and provides a plain viewing background
  • Frost-free viewing window and internal illumination proves excellent visibility within the bath

Safe operation

  • Bath thermistor senses over-temperature fault and removes power
  • Thermistor disconnection results in removal of bath heater power

Reliable performance

  • Well tested CANNON bath platform offers reliability and dependable support
  • The heavy duty aluminum frame offers a corrosion-resistant epoxy finish