New standard in lab humidity

AMS Instrumentation and Calibration has launched Michell’s new high-precision, low dew-point hygrometer to meet the demands of humidity calibration and standard laboratories. 

The Michell S8000-100 can be used as a reference hygrometer in standards laboratories, humidity calibration facilities, and precision moisture measurements for research and development. 

Having used the latest developments in chilled mirror technology, Michell’s engineers have achieved reliable, repeatable measurements of low dew points down to minus 100 degrees Celsius, with an accuracy of plus-minus 0.1 degrees Celsius without any additional cooling necessary. 

The machine has advanced optic systems which enables it to detect minute changes in moisture condensed on the mirror surface, ensuring high sensitivity and fast response times to changes in frost point. 

Through its high precision chilled mirror hygrometer, the S8000-100 maintains a plus-minus 0.25 degrees Celsius stability at minus degrees Cfp in less than six hours. It also has a reproducibility of plus-minus 15 degrees Cfp reproducibility at minus 100 degrees Cfp. 

The instrument’s ability for complete automation and remote monitoring via software means it does not require operators to constantly monitor it. 

Communication protocols used include Modbus RTU over USB, RS232, RS485, Modbus TCP over ethernet. Also available is datalogging to SD card along with user-configurable analogue outputs. 

Michell’s engineers have designed it to fit into a 19” rack format or for easy use on a bench, the hygrometer weighs 22kg.