Using the 0 –100 Arbitrary Scale
This scale is used to test the moisture content of hygroscopic
materials for which a calibration is not available. Depending
on the material, a special application external electrode,
instead of the integral contact pins may be required.
Increasing readings on the 0-100 reference scale indicate
higher levels of moisture content. These readings can be
translated into percent moisture content once a calibration
has been developed.
h
Set the meter scale
for
#
2. If necessary, attach an exter-
nal electrode to the meter.
h
Push the contact pins
into the material or apply the exter-
nal electrode.
h
Press the read key
!
. The meter displays a relative value
for two seconds.
The readings may also be used for comparative tests, after
meter readings have been related to given conditions for the
materials involved. When the meter is used as a gauge for
comparative tests, readings should be taken on samples con-
sidered to be at “safe” levels or in satisfactory condition.
These readings are then used as the “standard” against which
subsequent readings on the same material are evaluated.
The “standard” for any given material is related to safe stor-
ability or any other property which is important for further
production processing.
Testing Baled Scrap Paper
h
Set the meter scale for
#
3 baled scrap paper. Attach an
external electrode to the meter.
h
Push the external electrode into the material being tested.
h
Press the read key
!
. The meter displays the %MC for
two seconds.
The level of accuracy of meter readings depends on a number
of factors: similarity between the material tested and sam-
ples on which the calibration was made; moisture distribu-
tion; and chemical application or processing which may
affect the electrical properties of the paper product
The required electrode is the H-4 with a
#
830-series prod.
(10”or 18”). A sharp, steel rod to open the hole for the prod
may be helpful if the bale is very dense.
7
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