PRECISE-LOG Data Loggers User’s Manual
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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.
Max. = 65535
Max. = 65535
Min. = 0
Min. = 100
Max. = 65100
Measured Data
Ideal Data
Input
Output
Cali. Zero = 100
– 0 = 100
Cali. Span = 65100 - 65535 = - 435
After Correction, Min. Value = 100
– 100 = 0
After Correction, Max. Value = 65100
– ( - 435) = 65535
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:
