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Summary of Contents for Extech Instruments RH390
- Page 1 User's Guide Digital Psychrometer Model RH390 °F•°C•WBT Dew Point GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 2 Introduction Congratulations on your purchase of the Extech RH390 Digital Psychrometer. This device measures Humidity, Air Temperature, Dew Point temperature and Wet Bulb temperature. Advanced features include Data Hold, Auto Power Off, and MAX/MIN reading. Careful use of this meter will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, and Customer Support. Meter Description Humidity & Temperature Sensor LCD Display Power ON/OFF button °F/°C/WBT (wet bulb)/Dew Point button...
- Page 3 1. To select the Dew Point measurement, press the °F/°C/WBT/Dew Point button until DEWPOINT (°F or °C) appears in the lower right. 2. Dew Point temperature is now displayed. °C °F Dewpoint RH390-EU-EN V2.3 07/13 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 4 Press the hold button ( ) again to return to normal operation. °C °F WetBulb RH390-EU-EN V2.3 07/13 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 5 ) while powering on. The symbol will not appear when auto power off has been disabled. The meter will °C °F revert to the default auto-off mode when powered off. RH390-EU-EN V2.3 07/13 GlobalTestSupply www. .com Find Quality Products Online at:...
- Page 6 Power Supply 9 Volt battery Battery Life Approx. 24 hours Dimensions / Weight 7.8 x 1.7 x 1.3” (200 x 45 x 33mm); 7 oz. (200g) Copyright © 2013 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com RH390-EU-EN V2.3 07/13 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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