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Summary of Contents for UEi DTH51
- Page 1 INSTRUCTION MANUAL DTH51 1-800-547-5740 • Fax: (503) 643-6322 www.ueiautomotive.com • email: info@ueitest.com...
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Page 2: Controls And Indicators
Introduction C o n t rols and Indicators The DTH51 gives you quick access to the information you need when installing or maintaining heating and cooling systems. Manufacturers of some of the newer “high-efficiency” cooling systems require you to charge them based on wet bulb and dry bulb specifications. The DTH51 offers you the fastest method to date of taking these measurements. -
Page 3: Operating Instructions
HVAC system. The distance to spot ratio of 7. IR Indicator the DTH51 is 8 to 1 (as explained in Fig 1). 8. Emissivity 9. Battery Indicator 10. -
Page 4: Emissivity Values
LCD screen. Auto Power Off Time Setting The auto power off function is factory set to turn the DTH51 off in 5 minutes (300 seconds). To override the auto power off function , press and hold down the “... -
Page 5: Relative Humidity
Relative humidity is measured in Relative Humidity Measurement percentage and is displayed in the bottom line of the DTH51 (Fig 3). (Fig 6) Differential Dew Point Differential dew point is a calculation of the difference between the dew point of ambient air and the actual surface temperature of an object. -
Page 6: Low Battery Indication
Error value 3. Press “ “ to power on the instrument. 4. 32.8% will be flashing on the bottom line of the DTH51. 5. Leave the instrument in the 33% calibration-salt solution for 30 minutes. 6. After 30 minutes the 32.8% will stop flashing and become steady. - Page 7 Check ambient temperature (73˚F) Seal around Cal salt-bottle faulty Other (not listed) Call UEi (800) 547-5740 S p e c i f i c a t i o n s Ambient temperature range -4˚ to 122˚F (-20˚ to +50˚C) RH% range...
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Page 8: Limited Warranty
Any implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the express warranty. UEi shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses or economic loss.
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