Decide On-Line Or Off-Line Calibration - Microedge Instruments iLog Series User Manual

The valid range for these two parameters is from –32768 to 32767.
The following figure illustrates the relationship between an ideal data line and a measured
data line and how Cali. Low and Cali. High correct the measured data line.
Cali. Span = 65100 - 65535 = - 435
Cali. Zero = 100 – 0 = 100

Decide On-Line or Off-Line Calibration

If the source signal like voltage or current can be connected to the logger while the logger is
connecting to the computer, you can calibrate the logger on-line. If the source signal like a
temperature or relative humidity is not available for on-line calibration, you can calibrate the
logger off-line after the logger has recorded the low and high point data.
You access On-Line / Off-Line Calibration via Calibrate button on the logger status tool bar.
The following dialog appears:
iLog Data Loggers User's Manual
Measured Data
Output
Max. = 65535
Max. = 65100
Min. = 100
Min. = 0
After Correction, Min. Value = 100 – 100 = 0
After Correction, Max. Value = 65100 – ( - 435) = 65535
Ideal Data
Input
Max. = 65535
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