Dewpoint Calibration Services

A highly efficient and economical solution designed for trace moisture measurement in gases and dry compressed air, particularly suited for applications requiring monitoring of higher, ‘wetter’ dewpoints.

The PDT Dewpoint Transmitter offers a practical approach to continuous dewpoint measurement, catering for diverse requirements down to -60 °C dewpoint and available with three specific dewpoint ranges: -60 °C to +20 °C, -40 °C to +30 °C and -20 °C to +50 °C.

The compact 2-wire, 4-20 mA loop-powered transmitter features a bulk polymer sensing element — delivering excellent accuracy, stability and response speed across various dewpoint ranges. It is engineered to withstand pressures up to 5,000 kPa (50 barg), ensuring robust performance under demanding conditions. It offers IP65/NEMA 4 protection and for enhanced safety and reliability, the electrical connections are made via a durable M12 industrial connector.

An advanced, panel mount, single channel display, engineered to seamlessly integrate with our range of online dewpoint transmitters, for continuous and precise trace moisture measurement in process gases, dry compressed air and dry rooms/chambers.

The DS4000 offers unparalleled adaptability and exceptional accuracy to ±2 °C (±3.6 °F) dewpoint. Its display can be user-configured to show dewpoint in °C or °F, ppm(V), ppb(V), ppm(W), g/m³ or lb/MMSCF, tailored to the specific needs of each application.

It provides comprehensive data management, including a linear 0-20 or 4-20 mA isolated retransmission signal and is user-configurable to input pressure for pressure dewpoint conversion — offering a solution that is as versatile as it is reliable.

Featuring 3-stage chilled mirror technology and integral cooling, the CMH-RPC delivers precise and continuous moisture measurements up to -95 °C frost/dew point, translating to 37 ppb(V), making it an indispensable tool for high-accuracy applications.

The CMH-RPC offers unmatched accuracy for critical applications in laboratories and research facilities and as a reference standard for calibrating other moisture measurement instruments, delivered ready for immediate bench-top installation.

Our Model CMH Chilled Mirror Hygrometer accurately measures the dewpoint of a gas by cooling a mirrored surface, over which the gas flows until a layer of dew forms on the surface.