Appendix D. Thermistor Temperature Derivation; 3Kω Thermistor Resistance; Table 16: 3Kω Thermistor Resistance - Geokon GeoNet 8800 Series Instruction Manual

APPENDIX D. THERMISTOR TEMPERATURE
DERIVATION
D.1 3KΩ THERMISTOR RESISTANCE
Thermistor Types:
■
YSI 44005, Dale #1C3001-B3, Alpha #13A3001-B3
■
Honeywell 192-302LET-A01
Resistance to Temperature Equation:
T =
EQUATION 1: 3kΩ Thermistor Resistance
Where:
T = Temperature in °C
LnR = Natural Log of Thermistor Resistance
A = 1.4051 x 10
B = 2.369 x 10
C = 1.019 x 10
Note: Coefficients calculated over the -50 to +150 C span.
Ohms 16:
201.1K
187.3K
174.5K
162.7K
151.7K
141.6K
132.2K
123.5K
115.4K
107.9K
101.0K
94.48K
88.46K
82.87K
77.66K
72.81K
68.30K
64.09K
60.17K
56.51K
53.10K
49.91K
46.94K
44.16K
41.56K
39.13K
36.86K
34.73K
32.74K
30.87K
29.13K
27.49K
25.95K
24.51K
23.16K
21.89K
20.70K
19.58K
18.52K
17.53K
16.60K
TABLE 16: 3KΩ Thermistor Resistance
MODEL 8800 SERIES GEONET WIRELESS DATA ACQUISITION NETWORK | THERMISTOR TEMPERATURE DERIVATION | 27
1
3
A+B(LnR)+C(LnR )
-3
-4
-7
Temp Ohms Temp Ohms
-50 15.72K -9 2221
-49 14.90K -8 2130
-48 14.12K -7 2042
-47 13.39K -6 1959
-46 12.70K -5 1880
-45 12.05K -4 1805
-44 11.44K -3 1733
-43 10.86K -2 1664
-42 10.31K -1 1598
-41 9796 0 1535
-40 9310 1 1475
-39 8851 2 1418
-38 8417 3 1363
-37 8006 4 1310
-36 7618 5 1260
-35 7252 6 1212
-34 6905 7 1167
-33 6576 8 1123
-32 6265 9 1081
-31 5971 10 1040
-30 5692 11 1002
-29 5427 12 965.0
-28 5177 13 929.6
-27 4939 14 895.8
-26 4714 15 863.3
-25 4500 16 832.2
-24 4297 17 802.3
-23 4105 18 773.7
-22 3922 19 746.3
-21 3748 20 719.9
-20 3583 21 694.7
-19 3426 22 670.4
-18 3277 23 647.1
-17 3135 24 624.7
-16 3000 25 603.3
-15 2872 26 582.6
-14 2750 27 562.8
-13 2633 28 543.7
-12 2523 29 525.4
-11 2417 30 507.8
-10 2317 31 490.9
–
273.15
Temp Ohms Temp Ohms
32 474.7 73 137.2
33 459.0 74 133.6
34 444.0 75 130.0
35 429.5 76 126.5
36 415.6 77 123.2
37 402.2 78 119.9
38 389.3 79 116.8
39 376.9 80 113.8
40 364.9 81 110.8
41 353.4 82 107.9
42 342.2 83 105.2
43 331.5 84 102.5
44 321.2 85 99.9
45 311.3 86 97.3
46 301.7 87 94.9
47 292.4 88 92.5
48 283.5 89 90.2
49 274.9 90 87.9
50 266.6 91 85.7
51 258.6 92 83.6
52 250.9 93 81.6
53 243.4 94 79.6
54 236.2 95 77.6
55 229.3 96 75.8
56 222.6 97 73.9
57 216.1 98 72.2
58 209.8 99 70.4
59 203.8 100 68.8
60 197.9 101 67.1
61 192.2 102 65.5
62 186.8 103 64.0
63 181.5 104 62.5
64 176.4 105 61.1
65 171.4 106 59.6
66 166.7 107 58.3
67 162.0 108 56.8
68 157.6 109 55.6
69 153.2 110
70 149.0 111
71 145.0 112
72 141.1 113
Temp
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150