26
Moistur
e value(standar
d method) [%]
Count value (HK-300)
<Example of preparation of a calibration curve>
7-1. What is a Calibration Curve?
In general, calibration curves for an electrical resistance
type moisture meter indicate the relationship between the
electrical resistance value for each sample and the moisture
previously determined by a standard method.
These may be expressed as an equation, a graph, a table,
or some other form. Calibration curves for the HK-300 (for
copying paper and cardboard) show the relationship between
the electrical resistance value for paper measured using a grip
sensor, rubber sensor, or pressure sensor and the moisture
value determined by a standard method.
Depending on various conditions such as the type and
thickness of paper and other factors, the relationship
between the electrical resistance value and the moisture
can differ greatly. Accordingly, depending on the paper, the
correct moisture value may not be able to be measured by
the calibration curves of this unit.
In this case, use the moisture value bias correction function
(p. 19, "6-5"), or prepare a calibration curve for the sample
from the relationship of the count value in the count mode
and the moisture value according to a standard method.
7. Preparing a Calibration Curve
