(Michell Instruments: Rowley, MA) -- The S8000 Remote chilled mirror hygrometer, from Michell Instruments, manufacturer of high-precision moisture and humidity measurement solutions, is among the most precise instruments currently available for emissions testing and can be used as a primary measurement and control device in the emission testing system or to verify calibration of other devices.
The S8000 will help meet requirements for absolute or relative humidity measurement of environmental control authorities. During an emission test, the control of ambient conditions plays an important role in the outcome. Among other values such as temperature or pressure, the relative humidity has to be measured to comply with defined standards from the Environmental Protection Agency (EPA).
The evaluation of emissions during engine design requires the use of climate-controlled, emission-testing systems such as test chambers and cells. With accuracies of ±0.1°C dew/frost point, and based on a fundamental measurement principle that has no inherent drift, the new S8000 Remote hygrometer combines flexibility with outstanding accuracy.
Every Michell instrument is delivered fully calibrated and traceable to national standards, including the S8000 Remote. Michell maintains direct traceability to the National Institute of Standards and Technology (NIST) and the National Physical Laboratory (NPL) through its humidity calibration laboratory, which is accredited by the United Kingdom Accreditation Service (UKAS). This satisfies the most stringent quality system requirements and gives ultimate confidence in the measurement being made.