Geokon LC-2x16, Instruction Manual

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57
Thermistor Type: U.S. Sensor 103JL1A
Resistance to Temperature Equation:
T=
1
A+B
ሺ
LnR
ሻ
+C(LnR)
3
+D(LnR)
5
-273.2
Equation 7 - Convert Thermistor Type, 103JL1A, Resistance to Temperature
Where: T

Temperature in

C.
LnR

Natural Log of Thermistor Resistance
A

1.12766979300187

10-3
B

2.34444184128213

10-4
C

8.47692130592308

10-8
D

1.17512193579615

10-11
Temp Ohms Temp Ohms
-30 176974
120 389.6
-25 130421 125 341.9
-20 97081 130 301
-15 72957 135 265.8
-10 55329 140 235.3
-5 42327 145 208.9
0 32650 150 186.1
5 25392 155 165.96
10 19901 160 148.36
15 15712 165 132.95
20 12493 170 119.43
25 10000 175 107.52
30 8057 180 97.02
35 6531 185 87.72
40 5326 190 79.49
45 4368 195 72.17
50 3602 200 65.66
55 2986 205 59.85
60 2488 210 54.65
65 2083 215 50
70 1752 220 45.82
75 1480 225 42.06
80 1255 230 38.68
85 1070 235 35.62
90 915.5 240 32.86
95 786.6 245 30.36
100 678.6 250 28.09
105 587.6 255 26.03
110 510.6 260 24.15
115 445.3
Equation 8 - 103JL1A Thermistor Resistance versus Temperature