Measurement-computing TempScan/1100 Bedienungsanleitung Seite 125

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TempScan / MultiScan User's Manual 879596 System Calibration 6-9
To Calibrate a Thermocouple Card for Gain
CAUTION
Ensure that the thermocouple scanning card has been calibrated for offset. If not,
follow the thermocouple card offset calibration procedure as described in the
previous text.
1. Connect a precision voltage source to Channel 1 on the scanning card being calibrated. Use standard
copper hookup wire. Do not use thermocouple wire. Slide the scanning card into the previously-
calibrated master chassis.
2. Power up the unit and wait at least one hour before continuing.
3. Set the Part A precision voltage source and send its corresponding Calibrate Channel Gain (
G)
command
Gchan,type – where chan refers to the first channel number on the scanning card being
calibrated (refer to the previous table for valid gain channel numbers) – from the following list:
Part A: -13.82 mV Gchan,7 Part I: -47.70 mV Gchan,8
Part B: +13.82 mV
Gchan,7 Part J: +47.70 mV Gchan,8
Part C: -18.70 mV
Gchan,6 Part K: -54.90 mV Gchan,2
Part D: +18.70 mV
Gchan,6 Part L: +54.90 mV Gchan,2
Part E: -21.12 mV
Gchan,3 Part M: -77.00 mV Gchan,4
Part F: +21.12 mV
Gchan,3 Part N: +77.00 mV Gchan,4
Part G: -43.00 mV
Gchan,1 Part O: -100.00 mV Gchan,10
Part H: +43.00 mV
Gchan,1 Part P: +100.00 mV Gchan,10
Wait for the Part A command to complete. The TRIGGER LED indicator will flash for a few seconds.
4. Monitor the Calibration Status Register (
CSR) to ensure that the Calibrate Channel Gain (G) command
completed without error. Refer to the User Status (
U) command U2 to monitor and decode the
Calibration Status Register (
CSR).
5. Repeat Steps 3 and 4 for each of the next fifteen parts: Part B through Part P.
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