SHB_U14 Chapter 8: Calibration
8-11
Initial calibration of Uras 14 IR detectors, continued
Initial calibration
results
The fixed offset and fixed amplification are the result of an initial calibration.
All calibration data are written in the EEPROM.
Initial calibration
Flowing reference gas
• Zero
Introduce the start point gas of the small measurement range in the sample cell
sample chamber.
Introduce the reference gas in the sample cell reference chamber.
• Span
Introduce the end point gas of the large measurement range in the sample cell
sample chamber.
Introduce the reference gas in the sample cell reference chamber.
• The remainder of the process runs as described above.
Pay special attention to the desired value input.
Suppressed
measurement range
initial configuration
• Initial calibration of the reference measurement range (larger measurement
range) zero and span points.
• The starting point of the suppressed measurement range is calibrated by
postlinearizing the large measurement range at that point.