Hayward ProLogic Troubleshooting Manual page 46

Air/Water Sensors: Resistance Chart
Use the following chart to determine the reported temperature of a sensor based on
either resistance (with sensor disconnected) or DC voltage (with sensor connected):
F° Ohms Volts F° Ohms
1 82,719 4.46 21 44,879
2 80,142 4.45 22 43,577
3 77,656 4.43 23 42,318
4 75,255 4.41 24 41,099
5 72,937 4.40 25 39,919
6 70,698 4.38 26 38,777
7 68,535 4.36 27 37,671
8 66,447 4.35 28 36,601
9 64,428 4.33 29 35,565
10 62,479 4.31 30 34,561
11 60,595 4.29 31 33,590
12 58,774 4.27 32 32,648
13 57,014 4.25 33 31,737
14 55,313 4.23 34 30,853
15 53,669 4.21 35 29,998
16 52,078 4.19 36 29,169
17 50,541 4.17 37 28,365
18 49,054 4.15 38 27,587
19 47,616 4.13 39 26,832
20 46,225 4.11 40 26,100
46
Volts F° Ohms Volts F° Ohms
4.09 41 25,391 3.59 61 14,921
4.07 42 24,704 3.56 62 14,543
4.04 43 24,037 3.53 63 14,176
4.02 44 23,391 3.50 64 13,820
4.00 45 22,764 3.47 65 13,473
3.97 46 22,156 3.45 66 13,136
3.95 47 21,566 3.42 67 12,809
3.93 48 20,993 3.39 68 12,491
3.90 49 20,438 3.36 69 12,182
3.88 50 19,900 3.33 70 11,882
3.85 51 19,377 3.30 71 11,589
3.83 52 18,870 3.27 72 11,305
3.80 53 18,377 3.24 73 11,029
3.78 54 17,899 3.21 74 10,761
3.75 55 17,435 3.18 75 10,500
3.72 56 16,985 3.15 76 10,246
3.70 57 16,548 3.12 77 9,999
3.67 58 16,123 3.09 78 9,758
3.64 59 15,711 3.06 79 9,525
3.61 60 15,310 3.02 80 9,297
Volts F° Ohms Volts F° Ohms
2.99 81 9,076 2.38 101 5,697
2.96 82 8,861 2.35 102 5,570
2.93 83 8,651 2.32 103 5,446
2.90 84 8,447 2.29 104 5,326
2.87 85 8,249 2.26 105 5,208
2.84 86 8,056 2.23 106 5,094
2.81 87 7,867 2.20 107 4,982
2.78 88 7,684 2.17 108 4,873
2.75 89 7,506 2.14 109 4,767
2.72 90 7,333 2.12 110 4,664
2.68 91 7,164 2.09 111 4,563
2.65 92 6,999 2.06 112 4,464
2.62 93 6,839 2.03 113 4,368
2.59 94 6,683 2.00 114 4,274
2.56 95 6,530 1.98 115 4,183
2.53 96 6,382 1.95 116 4,094
2.50 97 6,238 1.92 117 4,007
2.47 98 6,097 1.89 118 3,922
2.44 99 5,960 1.87 119 3,839
2.41 100 5,827 1.84 120 3,758
Volts F° Ohms Volts F° Ohms
1.81 121 3,679 1.34 141 2,440
1.79 122 3,602 1.32 142 2,392
1.76 123 3,527 1.30 143 2,345
1.74 124 3,454 1.28 144 2,299
1.71 125 3,382 1.26 145 2,254
1.69 126 3,312 1.24 146 2,210
1.66 127 3,244 1.22 147 2,167
1.64 128 3,177 1.21 148 2,125
1.61 129 3,112 1.19 149 2,084
1.59 130 3,049 1.17 150 2,044
1.57 131 2,987 1.15 151 2,005
1.54 132 2,926 1.13 152 1,966
1.52 133 2,867 1.11 153 1,929
1.50 134 2,809 1.10 154 1,892
1.47 135 2,752 1.08 155 1,856
1.45 136 2,697 1.06 156 1,821
1.43 137 2,643 1.05 157 1,787
1.41 138 2,591 1.03 158 1,753
1.39 139 2,539 1.01 159 1,720
1.37 140 2,489 1.00 160 1,688
Volts
0.98
0.97
0.95
0.93
0.92
0.90
0.89
0.88
0.86
0.85
0.84
0.82
0.81
0.80
0.78
0.77
0.76
0.75
0.73
0.72