OC277-49
0
10
20
30
40
50
-4 14 32 50 68 86 104 122
< Thermistor for lower temperature >
Temperature (°F)
Resistance (K")
<Thermistor Characteristic graph>
Room temperature thermistor(RT1)
Liquid pipe thermistor(RT2)
Thermistor R0=15k' ±3%
Fixed number of B=3480k' ±2%
Rt=15exp { 3480( ) }
32°F 15k'
50°F 9.6k'
68°F 6.3k'
77°F 5.4k'
86°F 4.3k'
104°F 3.0k'
Thermistor for
lower temperature
1
273
1
273+{(t-32)/1.8}
OC277--2.qxp 1.12.14 1:42 PM Page 49