Temperature Vs. Resistance Data - Pentair SOLARTOUCH 521592 Installation And User Manual

24

Temperature vs. Resistance Data

Solar systems use 10K Ohm thermistor sensors. When the solar sensor is disconnected
from the SolarTouch
Refer to the following table for the resistance at other temperatures. An accurate reading
should give a temperature setting that is accurate to ±0.2° C from 0 to 70° C.
Temp Temp
o o
( C ) ( F )
-50 -58
-45 -49
-40 -40
-35 -31
-37 -35
-34 -30
-32 -25
-29 -20
-30 -22
-26 -15
-25 -13
-23 -10
-21 -5
-20 -4
-18 0
-15 5
-12 10
-9 15
-10 14
-7 20
-5 23
-4 25
-1 30
0 32
2 35
5 40
5 41
7 45
10 50
13 55
15 59
16 60
18 65
20 68
21 70
24 75
SolarTouch Solar Control System Installation and User's Guide
®
Controller system, the sensor will read 10K Ohm at 77° F (25° C).
®
Resistance
Temp
o
(Ω) ( C )
669,500 25
471,500 27
336,200 29
242,500 30
280,100 32
234,100 35
196,300 38
165,100 40
176,800 41
139,300 43
130,300 45
118,000 46
100,200 49
97,000 50
85,350 52
72,910 54
62,480 55
53,640 57
55,300 60
46,230 63
42,300 65
39,910 66
34,560 68
32,600 70
30,000 71
26,100 74
25,400 75
22,760 77
19,900 79
17,440 80
15,700 82
15,310 85
13,480 88
12,500 90
11,880 91
10,500 93
Resistance
Temp
o
( F ) (Ω)
77 10,000
80 9,298
85 8,250
86 8,056
90 7,331
95 6,530
100 5,826
104 5,326
105 5,209
110 4,663
113 4,367
115 4,182
120 3,757
122 3,602
125 3,381
130 3,047
131 2,985
135 2,750
140 2,487
145 2,251
149 2,083
150 2,041
155 1,854
158 1,752
160 1,686
165 1,535
167 1,480
170 1,400
175 1,278
176 1,256
180 1,168
185 1,071
190 980
194 916
195 900
200 827
Resistance
Temp Temp
o o
( C ) ( F )
95 203
96 205
99 210
100 212
102 215
104 220
105 221
107 225
110 230
113 235
115 239
116 240
120 248
125 257
130 266
135 275
140 284
145 293
150 302
(Ω)
787
761
701
679
646
596
587
552
510
472
444
438
389
341
300
264
234
208
185