Product category:
Humidity and Environmental Sensors
News Release from: Michell Instruments | Subject: HG1 portable humidity calibrator
Edited by the Engineeringtalk Editorial
Team on 21 August 2000
Portable, traceable humidity calibration
Michell Instruments is launching a new, portable humidity calibrator to monitor the accuracy and performance of relative humidity probes, cooled mirror and capacitance dewpoint sensors.
Michell Instruments is launching a new, portable humidity calibrator, the HG1, to monitor the accuracy and performance of relative humidity probes, cooled mirror and capacitance dewpoint sensors The HG1 is traceable to NPL and NIST and enables dewpoint instruments to be calibrated quickly on site or in a calibration laboratory, to ensure that existing equipment continues to meet increasingly stringent quality regulations
This article was originally published on Engineeringtalk on 22 Dec 2000 at 8.00am (UK)
Related stories
Complete, ready to run humidity calibration system
Michell Instruments is launching a new, portable humidity calibrator, the HG1, to monitor the accuracy and performance of relative humidity probes, cooled mirror and capacitance dewpoint sensors.
The smarter on-line moisture monitor
Michell Instruments has launched the high performance Cermet II hygrometer for the on-line monitoring of moisture content in a wide range of process gases.
Better measuring of moisture in natural gases
With the introduction of Promet, Michell Instruments has developed a specific solution to the issue of moisture measurement in natural gas
Incorporating an integral gas dryer, humidification system, sample chamber and air pump, the HG1 measures dewpoint within the range -30C to +20C and relative humidity between 2% and 95%, at operating temperatures between 10C to 35C.
In practice, the HG1 splits a source of dry air into two streams, one of which is humidified by bubbling it through a water saturator while the other is passed through a gas dryer to remove any remaining moisture.
The two streams are then mixed volumetrically to produce an air sample with a specific dewpoint within the humidity chamber.
A Michell Dewmet TDH cooled mirror hygrometer is used as a reference instrument, confirming the precise dewpoint, relative humidity and temperature within the chamber, for comparison with the measurement data produced by the instrument under test.
The HG1 is supplied as a complete, ready to operate system, which requires only electric power and an occasional top up of the saturator with distilled water to operate.
The calibrator can be supplied with a wide range of optional facilities, including internal and external dry air feed and pressure control to meet the requirements of each application. Request a free brochure from Michell Instruments ...
• Michell Instruments: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
