Gauge Calibration; Approximate Calibration - Process Sensors MCT Series Installation And Operation Manual

8.0 Gauge Calibration

The object of gauge calibration is to obtain a straight-line graphical relationship between the sensor's
reading and the true moisture value of a series of samples.
MT
10
8
6
4
2
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8. 1 Approximate Calibration

Select one of the Product Codes (1-9 or 1-50) that will be used to store the calibration setting for the
product being measured.
Ensure that this Code # has valid settings for both zero and span.
Make or collect from the process two samples with moisture contents close to the lower and upper
values expected to occur in the manufacturing process.
Present the lower sample to the sensor and allow the sensors reading to stabilize.
Adjust the sample value setting to make the sensor reading read the same as the true moisture of the
sample.
Present the upper sample to the sensor and allow the reading to stabilize.
Note the sensor reading.
Use the calibration routine in the Operator Interface (Section 7.5) or the MCT
Viewer Software to correct the zero & span values. (see Viewer Software Users Guide)
Calibration Graph
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*
*
2 4 6 8
*
*
*
10 12 14 16
27
True Moisture