66
SunTouch Pool and Spa Control System Installation and User’s Guide
Temp (F
o
) Resistance (
Ω
Ω
Ω
Ω
Ω
) Temp (F
o
) Resistance (
Ω
Ω
Ω
Ω
Ω
) Temp (F
o
) Resistance (
Ω
Ω
Ω
Ω
Ω
)
-50
-58
669,500
25
77
10,000
95
203
787
-45
-49
471,500
27
80
9,298
96
205
761
-40
-40
336,200
29
85
8,250
99
210
701
-35
-31
242,500
30
86
8,056
100
212
679
-37
-35
280,100
32
90
7,331
102
215
646
-34
-30
234,100
35
95
6,530
104
220
596
-32
-25
196,300
38
100
5,826
105
221
587
-29
-20
165,100
40
104
5,326
107
225
552
-30
-22
176,800
41
105
5,209
110
230
510
-26
-15
139,300
43
110
4,663
113
235
472
-25
-13
130,300
45
113
4,367
115
239
444
-23
-10
118,000
46
115
4,182
116
240
438
-21
-5
100,200
49
120
3,757
120
248
389
-20
-4
97,000
50
122
3,602
125
257
341
-18
0
85,350
52
125
3,381
130
266
300
-15
5
72,910
54
130
3,047
135
275
264
-12
10
62,480
55
131
2,985
140
284
234
-9
15
53,640
57
135
2,750
145
293
208
-10
14
55,300
60
140
2,487
150
302
185
-7
20
46,230
63
145
2,251
-5
23
42,300
65
149
2,083
-4
25
39,910
66
150
2,041
-1
30
34,560
68
155
1,854
0
32
32,600
70
158
1,752
2
35
30,000
71
160
1,686
5
40
26,100
74
165
1,535
5
41
25,400
75
167
1,480
7
45
22,760
77
170
1,400
10
50
19,900
79
175
1,278
13
55
17,440
80
176
1,256
15
59
15,700
82
180
1,168
16
60
15,310
85
185
1,071
18
65
13,480
88
190
980
Temperature vs. Resistance Data
SunTouch systems use 10k
Ω
thermistor sensors. When the solar sensor is disconnected from the SunTouch
system, the sensor will read 10k
Ω
at 77º F (25ºC). Refer to the tables on the following pages for the
resistance at other temperatures. The resistance reading for any given temperature should be accurate to
±0.5ºF. For any given temperature, the resistance reading should be accurate to ±1%. Be sure that the solar
sensor is connected to the SunTouch system before making any DC voltage measurements. The reading should
be accurate to ± 2%.
Summary of Contents for Pool and Spa Control System SunTouch
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