CT-500 Series Constant Temperature Bath
The CT-500 Constant Temperature Bath is designed for precise kinematic viscosity measurements, with a temperature range of 20 °C to 100 °C, meeting ASTM D445/D446 and ISO 3104/3105 standards. This versatile bath offers a selection of ten pre-set temperatures and accurate control with a precision of ±0.01 °C. The motor-driven stirrer ensures uniform bath temperature for consistent results.
Safety features include a bath thermistor for overtemperature protection, a liquid level sensor, and a convenient drawer for electrical controls. Its efficient design allows for up to seven simultaneous viscosity determinations, with seven glass viscometer ports and two thermometer ports. This bath supports a range of applications, from oil and fuel testing to waxes and glycols, and provides a reliable, user-friendly solution for laboratory needs.
*Test temperatures <40 °C and high ambient temperature test environments require an optional CBC-100 Bath Cooler
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Features & Benefits
Precise & Accurate Temperature Control
- Temperature range: 20 °C to 100 °C with a precision of ±0.01 °C.
- Selectable temperature control, with options for variable or pre-set temperatures at 10 points (20 °C, 25 °C, 30 °C, 40 °C, 50 °C, 60 °C, 70 °C, 80 °C, 90 °C, and 100 °C).
- Complies with ASTM D445 temperature requirements for kinematic viscosity determination.
- Motor-driven stirrer ensures uniform bath temperature.
Safety Features
- Thermistor senses over-temperature and automatically removes power.
- Bath heater power is cut off if the thermistor is disconnected.
- Liquid level sensor prevents operation when bath liquid is at an unsafe level.
User-Friendly Design
- Seven glass viscometer ports (each 2 inches in diameter) and two thermometer ports (each 0.4 inches in diameter), allowing up to seven simultaneous viscosity determinations.
- Two electric heating elements for rapid heating of the bath media.
- Stainless steel baffle provides a reflective viewing background.
- Convenient drawer for easy access to electrical controls.
- Accommodates viscometer tubes with a bath depth up to 12 inches.
Reliable Performance
- Based on a well-tested CANNON bath platform, offering reliability and dependable support.
- All wetted components are made of high-quality stainless steel or glass.
- The heavy-duty aluminum frame has a corrosion-resistant epoxy finish.
Common Applications
- Formulated oil analysis, hydraulic oil analysis, and additive analysis.
Marine fuel testing, base stock analysis, light and heavy fuel testing, waxes/paraffin, crude oil testing, and glycols.

