Portable Dry Well Calibrator


The CDW30 is a dry well calibrator.

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.

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


Temperature Scale

Choose between °F or °C models


Low Temperature Dry Well Calibrator

Temperature Range

-35° to 165°C* or -31° to 329°F

*Minimum temperature is 99°F (55˚C) below ambient, Absolute minimum is -31°F (-35˚C)

Control Sensor

Internal PT100

Temperature Stability

CDW30C: ± 0.03°C
CDW30F: ± 0.05°F

Temperature Uniformity

CDW30C: ± 0.05°C
CDW30F: ± 0.09°F

Screen Resolution

0.1˚C / 0.01°C / 0.001°C / °F


±0.1°F / °C

Heating Time

CDW30C: -5° to 100°C: 25 Min
CDW30F: 23° to 212°F: 25 Min

Cooling Time

CDW30C: 25° to -25°C: 45 Min
CDW30F: 77° to -13°F: 45 Min


6.49 inches (165 mm)

Well Diameter

2.36 inches (60 mm)

Housing and Assembly


Well Dimensions

2.36 inch diameter
6.49 inch depth

Unit Dimensions

11.02 inches x 11.02 inches x 16.92 inches (280mm x 280mm x 430mm), with handle.


24.25 pounds (Approximately 11 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.