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Table of Contents
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Summary of Contents for Extech Instruments HD550
- Page 1 User Guide Heavy Duty Psychrometer + IR Thermometer Model HD550...
- Page 2 Introduction Congratulations on your purchase of the Extech HD550 Psychrometer. This handheld meter measures and displays Air Temperature, Dew Point Temperature, and Wet Bulb Temperature; Humidity in %RH, grains per pound, and grams per kilogram; and Surface Temperature using the built-in IR thermometer.
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Page 3: Meter Description
Display Description 1. Low Battery icon 2. PC communication icon 3. Upper display function icons g/kg 4. Upper display 5. Laser pointer icon 6. Lower display function icons 7. Lower display 8. Lower display function icons HD550-EU-EN V1.1 07/13... -
Page 4: Operation
WARNING: Do not directly view or direct the laser pointer at an eye. Low power visible lasers do not normally present a hazard, but may present some potential for hazard if viewed directly for extended periods of time. HD550-EU-EN V1.1 07/13... - Page 5 Note: Continuous use of the backlight function will reduce battery life. USB Interface and Software The HD550 is equipped with a communication jack on its upper left side. The supplied communications cable connects to this jack and to a USB port on a PC. The supplied software allows the user to view and save readings to the PC.
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Page 6: Infrared Measurement Considerations
To compensate, cover the surface under test with masking tape or flat black paint. Allow time for the tape to reach the same temperature as the material underneath then measure the temperature of the tape or the painted surface. HD550-EU-EN V1.1 07/13... -
Page 7: Specifications
Power supply 9V Battery Operating conditions Meter: 0 to 50 C (32 to 122 F); 80% RH max. Dimensions / Weight Main instrument: 257 x 76 x 53mm (10.1 x 3.0 x 2") Weight 355g. (12.5 oz) HD550-EU-EN V1.1 07/13... - Page 8 0 to 999 GPP 1 GPP >100 GPP g/kg 0.1 g/kg<100 g/kg 0 to 160 g/kg 1 g/kg>100 g/kg Copyright © 2013 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form ISO‐9001 Certified www.extech.com HD550-EU-EN V1.1 07/13...
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