Michell Instruments HygroCal 100 and Optidew 401 package for traceable humidity calibrations

Tuesday, 01 June, 2021 | Supplied by: AMS Instrumentation & Calibration Pty Ltd


The ability to perform traceable humidity calibrations of probes in-house is being brought within the reach of more users, with the help of a package offered by Michell Instruments.

The benefits of performing calibrations in-house include less process downtime as well as reduced costs since fewer probes will be sent to external calibration laboratories. However, the capital outlay required for traditional systems can be prohibitive for all but the largest companies. Michell’s combination of the HygroCal 100 humidity validator with the Optidew 401 chilled mirror hygrometer is designed to place in-house calibrations, with all their benefits, in the reach of more companies.

The Optidew 401 chilled mirror hygrometer is traceable to national standards to provide a reference for humidity calibrations. It is accurate to ±0.15°C dewpoint and ±0.15°C temperature, and connects easily to the HygroCal 100. Both instruments are light and compact, allowing users to easily move the system to where it is needed most, or pack away if not required to save space.

The HygroCal100 is a lightweight, portable humidity verifier, which uses its internal polymer reference to provide automatic verifications of the accuracy of RH probes. However, the HygroCal100 interface enables users to assign a hygrometer with an analog output as a reference device. This allows the unit to be used to perform full calibrations of humidity probes, which are traceable to the reference used.

In order to better serve users with an extended range of humidity and temperature calibration products and services, Michell has partnered with fellow process sensing technologies company Rotronic to provide a more versatile and extensive humidity calibration range. The offering includes commercial calibration services in ISO17025 accredited laboratories, fully functional dewpoint calibration systems with climatic chambers as well as transportable humidity generators for field calibrations.

Online: www.ams-ic.com.au
Phone: 03 9017 8225
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