BALCO Tracking Chart TCR
Characteristic in ppm/°F.
| F | ohms | ppm/°F | chg. | °F | ohms | ppm/°F | chg. |
|---|---|---|---|---|---|---|---|
| 32 | 918.53 | 33 | 920.6 | 2121 | 2.154 | ||
| 34 | 922.71 | 2122 | 2.155 | 35 | 924.79 | 2124 | 2.157 |
| 36 | 926.86 | 2126 | 2.159 | 37 | 928.98 | 2127 | 2.16 |
| 38 | 931.07 | 2129 | 2.162 | 39 | 933.19 | 2130 | 2.163 |
| 40 | 935.28 | 2131 | 2.165 | 41 | 937.41 | 2132 | 2.166 |
| 42 | 939.51 | 2134 | 2.168 | 43 | 941.65 | 2135 | 2.169 |
| 44 | 943.75 | 2137 | 2.171 | 45 | 945.89 | 2138 | 2.172 |
| 46 | 948 | 2140 | 2.173 | 47 | 950.12 | 2142 | 2.175 |
| 48 | 952.27 | 2143 | 2.176 | 49 | 954.39 | 2145 | 2.178 |
| 50 | 956.54 | 2146 | 2.179 | 51 | 958.67 | 2148 | 2.181 |
| 52 | 960.8 | 2150 | 2.183 | 53 | 962.96 | 2151 | 2.184 |
| 54 | 965.1 | 2152 | 2.186 | 55 | 967.26 | 2153 | 2.187 |
| 56 | 969.43 | 2154 | 2.188 | 57 | 971.58 | 2156 | 2.19 |
| 58 | 973.73 | 2158 | 2.192 | 59 | 975.89 | 2160 | 2.194 |
| 60 | 978.06 | 2161 | 2.195 | 61 | 980.23 | 2163 | 2.197 |
| 62 | 982.41 | 2164 | 2.198 | 63 | 984.58 | 2166 | 2.2 |
| 64 | 986.77 | 2167 | 2.201 | 65 | 988.95 | 2169 | 2.203 |
| 66 | 991.14 | 2170 | 2.204 | 67 | 993.32 | 2173 | 2.206 |
| 68 | 995.51 | 2173 | 2.207 | 69 | 997.71 | 2174 | 2.208 |
| 70 | 1000 | 2174 | 2.207 | 71 | 1002.11 | 2178 | 2.212 |
| 72 | 1004.31 | 2179 | 2.213 | 73 | 1006.51 | 2182 | 2.216 |
| 74 | 1008.73 | 2183 | 2.217 | 75 | 1010.94 | 2185 | 2.219 |
| 76 | 1013.16 | 2187 | 2.22 | 77 | 1015.38 | 2188 | 2.222 |
| 78 | 1017.6 | 2189 | 2.223 | 79 | 1019.83 | 2192 | 2.226 |
| 80 | 1022.05 | 2191 | 2.225 | 81 | 1024.28 | 2192 | 2.226 |
| 82 | 1026.52 | 2194 | 2.228 | 83 | 1028.75 | 2195 | 2.229 |
| 84 | 1031.01 | 2198 | 2.232 | 85 | 1033.24 | 2198 | 2.232 |
| 86 | 1035.5 | 2201 | 2.236 | 87 | 1037.74 | 2201 | 2.235 |
| 88 | 1039.98 | 2202 | 2.237 | 89 | 1042.24 | 2204 | 2.239 |
| 90 | 1044.49 | 2205 | 2.24 | 91 | 1046.77 | 2208 | 2.242 |
| 92 | 1049.02 | 2208 | 2.242 | 93 | 1051.27 | 2209 | 2.243 |
| 94 | 1053.57 | 2212 | 2.246 | 95 | 1055.85 | 2214 | 2.248 |
| 96 | 1058.11 | 2215 | 2.249 | 97 | 1060.38 | 2216 | 2.25 |
| 98 | 1062.69 | 2218 | 2.253 | 99 | 1064.97 | 2219 | 2.254 |
| 100 | 1067.24 | 2220 | 2.255 | 212 | 1342.72 | 2388 | 2.42 |
TEMPERATURE COEFFICIENT OF RESISTANCE (TCR)
• The TCR equals the change in resistance times 1,000,000 (106) divided by the original resistance (Ro) times the change in temperature.
• The TCR Char. is calculated between 25°C. and 100°C., always using +25°C.(77°F.) as the base temperature in the equation:
TCR/°F. = R212°F. – R77°F. / R77°F. x 135 x 106
= 1342.72 – 1015.38 / 1015.38 x 135 x 106
= 2388 ppm/°F. TCR/°C. = R100°C. – R25°C. / R25°C. x 75 x 106
= 1342.72 – 1015.38 / 1015.38 x 75 x 106
= 4298 ppm/°C.