Portable Calibration Combination Liquid Bath & Dry Well


The CLB31DW model is a low temperature liquid bath with a dry well option that can function as a liquid calibration bath or a dry well, depending on your needs.  This unit is high performance in a portable package for the most demanding, accurate on-site temperature calibration.

Designed for temperatures -31° to 329°F (-35˚ to 165˚C)*, this unit features a 4.3 inch color touch screen and includes advanced functionality like trends, programs (ramps), data logging, 10 point calibration, alarms, and events.  Includes ethernet port and two USB connections for communication.  Optional reference Pt100 4 wire probe can be attached externally if required.  Choose between North American or European power cord.

The CLB31DW model includes insert J with includes two 1/8 inch diameter holes, two 1/4 inch diameter holes, and two 3/8 inch diameter holes.

*Minimum Temperature is 55˚C / 131°F below Ambient, Absolute Minimum -35˚C / -31°F.



Low Temperature Liquid Bath / Dry Well, User Selectable Scale.

Temperature Range

-31° to 329°F (-35˚ to 165˚C). Minimum temperature of 131°F (55°C) below ambient.

Control Sensor

External / Internal Pt100 (3/4 wires) Switch

Temperature Stability

± 0.02°F / ± 0.01˚C

Temperature Uniformity

± 0.09°F / ± 0.05˚C

Screen Resolution

0.1˚C / 0.01°C / 0.001°C / °F


± 0.18˚F / ± 0.1˚C

Heating Time

23˚ to 212˚F: 25 min. (-5˚ to 100˚C: 25 min.)

Cooling Time

CLB31DW: 77˚ to -13˚F: 45 min. (25˚ to -25˚C: 45 min.)


7.48 inches (190 mm)

Well Diameter

2.36 inches (60 mm)

Well Capacity

0.7 liters

Housing and Assembly


Tank Dimensions

2.36 inch diameter.
7.48 inch depth.

Unit Dimensions

11.02 inches x 14.56 inches x 17.32 inches (280mm x 370mm x 440mm), with handle.


33.51 pounds (15.2 kg)

Power Supply

100 to 234 Vac, 50 to 60 Hz

Power Cord

North American

Power Consumption

310 W Max


Three years, covering defects in materials and workmanship.

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