How to Read HPGe Thermistor
Make sure detector high voltage is turned off
Unplug pre-amp power
Unscrew detector electronics casing
Slide electronics casing towards the crystal end of the detector
Turn multimeter to resistance (Ω) setting
Measure resistance across the white/black wires the exit the white nylon 4 pinned terminal
Check resistance in tables below for corresponding detector temperature
Resistance and Corresponding Temperatures
100-109Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 100 |
76.5780
|
| 101 |
77.0421
|
| 102 |
77.5063
|
| 103 |
77.9706
|
| 104 |
78.4352
|
| 105 |
78.9000
|
| 106 |
79.3649
|
| 107 |
79.8300
|
| 108 |
80.2952
|
| 109 |
80.7607
|
110-119Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 110 |
81.2263
|
| 111 |
81.6921
|
| 112 |
82.1581
|
| 113 |
82.6242
|
| 114 |
83.0906
|
| 115 |
83.5571
|
| 116 |
84.0238
|
| 117 |
84.4906
|
| 118 |
84.9576
|
| 119 |
85.4248
|
120-129Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 120 |
85.8922
|
| 121 |
86.3597
|
| 122 |
86.8275
|
| 123 |
87.2954
|
| 124 |
87.7634
|
| 125 |
88.2317
|
| 126 |
88.7001
|
| 127 |
89.1686
|
| 128 |
89.6374
|
| 129 |
90.1063
|
130-139Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 130 |
90.5754
|
| 131 |
91.0446
|
| 132 |
91.5141
|
| 133 |
91.9837
|
| 134 |
92.4524
|
| 135 |
92.9234
|
| 136 |
93.3935
|
| 137 |
93.8637
|
| 138 |
94.3342
|
| 139 |
94.8048
|
140-149Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 140 |
95.2755
|
| 141 |
95.7465
|
| 142 |
96.2176
|
| 143 |
96.6888
|
| 144 |
97.1603
|
| 145 |
97.6319
|
| 146 |
98.1036
|
| 147 |
98.5756
|
| 148 |
99.0477
|
| 149 |
99.5199
|
150-159Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 150 |
99.9923
|
| 151 |
100.4649
|
| 152 |
100.9377
|
| 153 |
101.4106
|
| 154 |
101.8836
|
| 155 |
102.3569
|
| 156 |
102.8303
|
| 157 |
103.3038
|
| 158 |
103.7775
|
| 159 |
104.2514
|
160-169Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 160 |
104.7254
|
| 161 |
105.1996
|
| 162 |
105.6740
|
| 163 |
106.1485
|
| 164 |
106.6232
|
| 165 |
107.0980
|
| 166 |
107.5730
|
| 167 |
108.0482
|
| 168 |
108.5235
|
| 169 |
108.9989
|
170-179Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 170 |
109.4746
|
| 171 |
109.9503
|
| 172 |
110.4263
|
| 173 |
110.9024
|
| 174 |
111.3786
|
| 175 |
111.8550
|
| 176 |
112.3316
|
| 177 |
112.8083
|
| 178 |
113.2851
|
| 179 |
113.7622
|
180-189Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 180 |
114.2393
|
| 181 |
114.7167
|
| 182 |
115.1941
|
| 183 |
115.6718
|
| 184 |
116.1496
|
| 185 |
116.6275
|
| 186 |
117.1056
|
| 187 |
117.5838
|
| 188 |
118.0622
|
| 189 |
118.5408
|
190-199Ω
| Thermistor Resistance (Ω) |
Detector Temperature (Κ)
|
| 190 |
119.0194
|
| 191 |
119.4983
|
| 192 |
119.9773
|
| 193 |
120.4564
|
| 194 |
120.9357
|
| 195 |
121.4152
|
| 196 |
121.8947
|
| 197 |
122.3745
|
| 198 |
122.8544
|
| 199 |
123.3344
|
PAS HPGe Detector
