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Relative Humidity/Temperature Transmitter
¸ðµ¨¸í  Model 657-1
Á¦Á¶¾÷ü  Dwyer
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PHYSICAL DATA 

Relative Humidity Range:     0 - 100%  
Rh Accuracy:     ¡¾ 2% (10 - 90% Rh), ¡¾ 3% (0 - 10% and 90 - 100% Rh)  
Operating Temperature Range:     32 to 158¡ÆF (0 to 70¡ÆC)  
Temperature Measurement Range:     32 to 212¡ÆF (0 to 100¡ÆC)  
Temperature Accuracy:     ¡¾ 1¡ÆF (0.5¡ÆC)  
Output:     2 channels, each 4 - 20 mA, loop powered on Rh channel  
Power Supply:     10 - 35 VDC  
Ambient Operating Temperature Limits:     32 to 158¡ÆF (0 to 70¡ÆC)  
Storage Temperature Limits:     -40 to 176¡ÆF (-40 to 80¡ÆC)  
Housing:     ABS plastic  
Sensor Probe:     5/16" x 10" (0.8 x 25.4 cm) stainless steel  
 
 
STOCKED MODELS............................
657-1 RH/Temperature Transmitter..........
NO.A-158 spit Flange Mounting Kit.........
NO.A-159 Duct Mounting Gland..............