CT-1000 Extended Range Constant Temperature Bath

CANNON product

Available in: Voltage 115 VAC and 230 VAC. ASTM D445/D446, ISO 3104/3105. CT-1000 series constant temperature bath accommodates viscometer tubes requiring a bath depth up to 12″ and provides reliable temperature control from 20 °C to 150 °C. 

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Available in voltage: 115 VAC and 230 VAC.

This durable and accurate insulated bath offers quick-set temperature control options and ASTM D445 reliability to 150°C. Up to seven viscometer tubes/holders can be placed in the bath. The unit is equipped with several safety features, including a bath level float and over-temperature themistor.


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: 20 °C to 150 °C*
  • Temperature accuracy: ± 0.01 °C from 20 °C to 100 °C; ± 0.03 °C from 100 °C to 150 °C
  • Temperature selection is variable between 20 °C and 150 °C or selectable at ten pre-set temperatures (20 °C, 25 °C, 30° C,
    40 °C, 50 °C, 60 °C, 80 °C, 100 °C, 135 °C, and 150 °C)
  • Meets ASTM D445 temperature sensitivity requirements for kinematic viscosity determination
  • Motor driven stirrer ensures a uniform bath temperature

Safe operation

  • Bath thermistor senses over-temperature fault and removes power
  • Thermistor disconnection results in removal of bath heater power
  • Liquid level sensor prevents operation if bath liquid is not at a safe operating level

Efficient, user-friendly design

  • Seven glass viscometer ports (each 2” in diameter) and two thermometer ports (each 0.4” in diameter) allow up to 7 simultaneous viscosity determinations**
  • Two electric heating elements quickly heat bath media to the selected temperature
  • Stainless steel baffle provides a plain reflective viewing background
  • Integrated stainless steel cooling coil allows connection to tap or recirculating water chiller for temperatures slightly above or below ambient. An external thermoelectric bath cooler is also available.
  • Convenient drawer provides easy access to electrical controls

Reliable performance

  • Well tested CANNON bath platform offers reliability and dependable support
  • All wetted components are manufactured from high quality stainless steel or glass
  • The heavy duty aluminum frame offers a corrosion-resistant epoxy finish

* Test temperatures < 40 °C and high ambient temperature test environments require an optional bath cooler
** Other port configurations are available as a special order