Product guide

Humidity and Dew-Point Instruments
© Michell Instruments 2009-2011
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Accreditations
UKAS
At Michell Instruments we understand and endorse the need to
conform to recognized standards for quality and calibration. Our
calibration laboratory maintains full traceability to British (NPL)
and American (NIST) Humidity Standards.
Michell Instruments Limited has been accredited to UKAS (United
Kingdom Accreditation Service) for the calibration of dew-point
hygrometers since 1986 (laboratory number 0179) and our
current dew-point calibration range is -90 to +90°C (-130 to
+194°F). For full details of our measurement capability please see
our Schedule of Accreditation. Our traceability to NIST (National
Institute of Standards & Technology) is over the range -75 to
+20°C (-103 to +68°F).
As a result of the European Accreditation (EA), our UKAS
accreditation carries equal validity in any country which is a
member of the EA.
NVLAP
Michell’s UKAS accreditation is commonly recognized in the
USA as equivalent to NVLAP (National Voluntary Laboratory
Accreditation Program).
ISO 9001:2008
Michell Instruments Limited has been awarded registration to BS
EN ISO 9001:2008.
These prestigious accreditations and registration give Michell
Instruments Limited a unique position within the fi eld of
hygrometry - independently audited and commended by National
Bodies on both quality and calibration.
HAZARDOUS AREA PRODUCTS
Michell Instruments Limited produces (besides its extensive RH
range), products specifi cally designed for use within hazardous
areas or locations. These products use various methods of
protection to impart the safety level required. All such products
are independently assessed and certifi ed to many international
standards, including, but not limited to, ATEX (European), IECEx,
CSA, FM, UL, GOSK-R and GOST-K.
Accreditations and certifi cates for these products can be
downloaded from the Michell website (www.michell.com) under
the Product Documents/Accreditations section.
The installation and use of products approved for use in
hazardous areas or locations must only be carried out by suitably
trained personnel, and in accordance with the latest national
standards currently in use in that region.
Q 06284
0179
Version 3.0