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Heating temperature controlled calibration bath

Stability and uniformity each better than ±0.02 °C

Working temperature range +100...+300 °C

Long-term (over 5 hours) temperature stability of THERMOTEST−300 at +250 °C proven by TERCON:
THERMOTEST-100 stability

Heating calibration thermostat ideally suited for utility or precision thermometer testing and calibration.

With bath proven design and innovative temperature controller, THERMOTEST–300 provides a high temperature stability and uniformity and offers the most cost-effective solution for thermometer testing at temperatures of +100 to +300 °C

  • Constant liquid level through concentric-tube design
  • Special design for sighting total immersion Liquid-in-Glass thermometers
  • All wetted parts are made of 304 stainless steel
  • Bright LCD graphic display with backlight
  • Improved PID temperature control
  • Integrated programmer for 10 program steps
  • Digitally adjustable high temperature cut-out and dry-running protection
  • Heater failure protection
  • Build-in real time clock allows thermostat switch on/off at preset time

Holder for thermometers of 9 to 16 mm diameter is included

External control sensor and USB, RS-232, RS-485 interfaces are optional

Two years warranty


VT-po-03 picture


Working temperature range

+100...+300 °С

Set-point resolution

0.01 °С

Display resolution

0.01 °С

Temperature stability

±0.02 °С

Temperature uniformity

±0.01 °С

Digital setting accuracy

±0.2 °С

Digital setting repeatability

±0.02 °С

Heating capacity

2000 W

Bath volume

14 Liters

Dimensions W×D×H

480×330×830 mm

Bath opening

Ø90 mm

Bath depth

530 mm


30 kg

Power supply

230 V, 50/60 Hz, 2.5 kW

Recommended accessories:
• Holder for thermometers of 3 to 9 mm diameter
• Holder for thermometers of 16 to 20 mm diameter