65
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
< Thermistor for lower temperature >
Temperature (:)
Resistance (k")
<Thermistor Characteristic graph>
Room temperature thermistor(RT1)
Pipe temperature thermistor(RT2)
Thermistor R0=15k' ±3%
Fixed number of B=3480K ± 2%
Rt=15exp { 3480( ) }
0: 15k'
10: 9.6k'
20: 6.3k'
25: 5.2k'
30: 4.3k'
40: 3.0k'
Thermistor R0=6.0k' ±5%
Fixed number of B=3390K ±2%
Rt=15exp { 3390( ) }
0: 6.0k'
10: 3.9k'
20: 2.6k'
25: 2.2k'
30: 1.8k'
40: 1.3k'
60: 0.6k'
Thermistor for
lower temperature
1
273+t
1
273
1
273+t
1
273
-200 20406080
< Thermistor for drain sensor >
Temperature (:)
0
1
2
3
4
5
6
7
8
9
10
Resistance (k")
Thermistor for
drain sensor
OC211-A--3.qxp 04.9.28 4:42 PM Page 65