Hayward SUM5TA - Temperature and Resistance Charts; Summit Sensor Charts; HeatPro Sensor Charts

4.8 K ohm Sensor Temperature / Resistance Chart
Temperature °F
Temperature °C
Sensor resistance (Kohm)
180.0
82.2
0.549
175.0
79.4
0.601
170.0
76.7
0.659
165.0
73.9
0.722
160.0
71.2
0.793
155.0
68.4
0.872
150.0
65.7
0.961
145.0
62.9
1.06
140.0
60.2
1.17
135.0
57.4
1.294
130.0
54.7
1.434
125.0
51.9
1.591
120.0
49.2
1.768
115.0
46.4
1.968
110.0
43.7
2.194
105.0
40.9
2.451
100.0
38.2
2.741
95.0
35.4
3.072
90.0
32.7
3.448
85.0
29.9
3.879
80.0
27.2
4.37
75.0
24.4
4.935
70.0
21.7
5.583
65.0
18.9
6.328
60.0
16.2
7.187
55.0
13.4
8.18
50.0
10.7
9.334
45.0
7.9
10.671
40.0
5.2
12.23
35.0
2.4
14.044
30.0
-0.3
16.167
25.0
-3.1
18.655
20.0
-5.8
21.581
15.0
-8.6
25.036
10.0
-11.3
29.11
5.0
-14.1
33.95
0.0
-16.8
39.683
10K ohm Sensor Temperature / Resistance Chart
Temperature °F
Temperature °C
Sensor resistance (Kohm)
180.0
82.2
1.171
175.0
79.4
1.281
170.0
76.7
1.402
165.0
73.9
1.538
160.0
71.2
1.688
155.0
68.4
1.856
150.0
65.7
2.044
145.0
62.9
2.254
140.0
60.2
2.489
135.0
57.4
2.752
130.0
54.7
3.049
125.0
51.9
3.382
120.0
49.2
3.758
115.0
46.4
4.183
110.0
43.7
4.664
105.0
40.9
5.208
100.0
38.2
5.827
95.0
35.4
6.53
90.0
32.7
7.333
85.0
29.9
8.249
80.0
27.2
9.297
75.0
24.4
10.5
70.0
21.7
11.882
65.0
18.9
13.473
60.0
16.2
15.31
55.0
13.4
17.435
50.0
10.7
19.9
45.0
7.9
22.764
40.0
5.2
26.1
35.0
2.4
29.998
30.0
-0.3
34.561
25.0
-3.1
39.919
20.0
-5.8
46.225
15.0
-8.6
53.669
10.0
-11.3
62.479
5.0
-14.1
72.937
0.0
-16.8
85.387
Temperature/Resistance Charts
For use with HeatPro Heat Pumps For use with Summit Heat Pumps
Using Temp/Resistance Charts
Determine correct temperature of air or
water using accurate thermometer. Set
VOM meter to a minimum of 20K ohms.
Read resistance of sensor.(wire to wire)
Resistance should match the temperature
shown on the chart.
In the example above:
The meter on the left shows a temperature
of 73.6⁰F
The meter on the right shows a resistance
through the sensor of 10.84K ohms.
Checking the chart on the right for 73.6
degrees shows the resistance should be
somewhere between
11.882 (70⁰) and 10.50 (75⁰)
Sensor tests good.
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