SciCan Statim 2000 - Page 86

Page 84
STAT IM 2000/2000S Service Guide
96-108639 Rev 3.0
4. STAT IM 2000 Calibration
9. Using the TCHM value just recorded, find the corresponding VCHMXGAIN value from the
chamber calibration conversion chart below.
10. Adjust the TCHM potentiometer until VM matches VCHMXGAIN for the observed TCHM to
within ± 0.005 V.
11. Start another cycle and verify that the calibration readings are within acceptable values. If
not, repeat steps 4 through 7 until acceptable values are achieved.
Chamber Calibration Conversion - Chart A
Tchm
(°C)
Vchmxgain
(VOLTS)
Tchm
(°C)
Vchmxgain
(VOLTS)
Tchm
(°C)
Vchmxgain
(VOLTS)
Tchm
(°C)
Vchmxgain
(VOLTS)
134.0 2.259 135.3 2.300 136.6 2.340 137.9 2.381
134.1 2.262 135.4 2.303 136.7 2.343 138.0 2.384
134.2 2.265 135.5 2.306 136.8 2.347 138.1 2.387
134.3 2.268 135.6 2.309 136.9 2.350 138.2 2.391
134.4 2.271 135.7 2.312 137.0 2.353 138.3 2.394
134.5 2.274 135.8 2.315 137.1 2.356 138.4 2.397
134.6 2.278 135.9 2.318 137.2 2.359 138.5 2.400
134.7 2.281 136.0 2.322 137.3 2.362 138.6 2.403
134.8 2.284 136.1 2.325 137.4 2.365 138.7 2.406
134.9 2.287 136.2 2.328 137.5 2.369 138.8 2.409
135.0 2.290 136.3 2.331 137.6 2.372 138.9 2.413
135.1 2.293 136.4 2.334 137.7 2.375 139.0 2.416
135.2 2.296 136.5 2.337 137.8 2.378
4. Steam generator thermocouple re-calibration
1. Repeat the steam generator thermocouple calibration procedure in 2 above.
2. Start another cycle and verify that the calibration readings are within acceptable values.
If the readings are not within these values repeat the procedure until the proper voltmeter
reading is obtained.
3. Once adjusted, apply a drop of non-conducting lacquer or nail polish to the adjustment
screw of the TC-ADJ potentiometer.
5. Switch off the unit and remove all calibration equipment.
STATIM 2000/2000S/2000 G4 Service Guide