EXTECHINSTRUMENTS
2HT200‐en‐GB_V1.411/16
Introduction
Thank you for selecting the Extech Instruments Model HT200 Heat Stress WBGT Meter. The
HT200 accurately determines the Heat Stress by factoring a combination of parameters:
Humidity, Temperature, and Direct Solar Radiation. These factors affect how high body
temperatures rise, as well as the ability to cool down. This device is shipped fully tested and
calibrated and, with proper use, will provide years of reliable service. Please visit our website
(www.extech.com)to checkforthelatestversionofthisUserGuide,Product Updates,Product
Registration,andCustomerSupport.
Features
Fastrespondingcapacitancesensor
Accurate measurements for:Wet bulbglobe temperature(WBGT),Blackglobe temperature
(TG),Humidity(%RH),Airtemperature(TA),Wetbulb(WET),andDewpoint(DEW)
Maximum,minimum,anddataholdRecording
Lowbatteryindication
LCDdisplaywithLEDbacklighting
Manualdatarecording(upto50readingsets)
Viewdatarecords
SelectabletemperatureunitsCorF
Brassblackball50mm(2”)diameter
WBGThighandlowaudibleandvisualalarmfunctions
AutoPowerOFFwithdisablefunction
Safety
WARNING:Avoidelectromagneticinterference(EMI)toavoiderraticmeterreadings.
WARNING:Themeasurementswillbeinaccurateiftheblackballistouchedduringatest.
WARNING: If the black ball is damage or deformed in shape, inaccurate measurement
valueswillresult.
CAUTION:Pleaseplacethemeterinawarm
temperatureandlowhumidityenvironment
for24hoursafterthemeterhasbeenusedinanoverlyhumidenvironment.
CAUTION:Pleasehavethemetercalibratedyearlyforthebestresults.
WARNING:Donotstorethisdeviceindirectsunlightorinoverlyhotand/ordampareas.
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Find Quality Products Online at: sales@GlobalTestSupply.com
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