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ÇöÀçÀ§Ä¡ : Home > DAVIS (»óÇ° 25000°³) > ½Àµµ/³ëÁ¡/¼öºÐ Humidity/Dewpoint/Moisture > ½ÎÀÌÆ®·Î¹ÌÅÍ Psychrometers

DAVIS Á¾ÇÕ °èÃø±â - Çѱ¹´ë¸®Á¡ ÄÚ¸°½º°è±â(ÁÖ)
 
ET87101 Battery Operated Psychrometer
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The Battery Operated Psychrometer is completely self-contained in a high impact,resistant molded
The Battery Operated Psychrometer is completely self-contained in a high impact, resistant molded, instrument case. Housed in this 10" x 4-1/2" x 2" case is a pair of highly accurate thermometers, a permanent accurate fan motor, a two ounce water bottle, a thermometer illuminating lamp, and a combined On/Off switch and intensity control. Externally provided with each battery operated psychrometer are an instruction manual, a humidity calculator slide rule, and a spare parts kit, which consists of extra wicking material and a lamp. All of the above are enclosed in a rugged carrying case. With the instrument removed from the carrying case, the instrument may be wall mounted and removed at any time for portable use.

The wet and dry bulb method of measuring moisture in the air is based on the evaporative cooling effect of the wet bulb. The dryer the surrounding air the more rapid water will evaporate. This causes the wet bulb to depress the temperature until a balance takes place between the cooling effect and the normal heat gain from ambient conditions.
 
Features
  • Greater than 1% accuracy for RH determination
  • Greater than 1/4% accuracy on thermometers
  • Steady aspiration allows readings in 1-1/2 to 2 minutes
  • Customized, high density polyethylene carrying case and spare lamp included
  • Dewpoint and relative humidity readings
  • Relative humidity accuracy to ¡¾1% full scale
  • Requires no whirling
 
Applications
  • Air conditioning and heating
  • Refrigeration and laboratories
  • Hospitals and meteorology
  • Computer rooms and printing
  • Mining and transportation
  • Warehousing and textile manufacturing
  • Food and chemical processing
 
SPECIFICATIONS

Response Time

11/2 to 2 minutes
Psychrometric Tables +10¡ÆF to 140¡Æ F for relative humidity and dewpoint
(-15¡ÆC to +44¡ÆC for relative humidity)
Accuracy ¡¾1% full scale
Thermometers 10¡ÆF to 120¡ÆF: ¡¾0.3% accuracy over entire range
(-15¡ÆC to 45¡ÆC : ¡¾2% accuracy over entire range)
Slide Rules +20¡ÆF to 120¡ÆF, -7¡ÆC to 49¡ÆC
Battery Life 1000 hours with 3 "D" cells
Size 10" x 41/2" x 2"
Weight 2-1/2 pound including case

CAT NO. MODEL DEscRIPTION AVAIL PRICE 
ET87101   22010   BATTERY OPERATED PSYCHROMETER   Yes   356,400
ET80014   80014F   OPTIONAL MATCH REPLACEMENT THERMOMETER FOR Battery Operated Psychrometer   Yes   84,240

 

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DAVIS Á¾ÇÕ °èÃø±â - Çѱ¹´ë¸®Á¡ ÄÚ¸°½º°è±â(ÁÖ)
 
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