Characteristic Curves; Choosing The Characteristic Curves; Determining The Reference Water Content; Overview Of Characteristic Curves - PCE PM 3 Bedienungsanleitung

5.2

Characteristic curves

5.2.1

Choosing the characteristic curves

There are many types of paper, which is why there is no standardized allocation of characteristic curves.
The following overview of characteristic curves contains different suggestions for different types of paper.
To get exact measurement results, you need to perform a one-time comparison measurement with your
online humidity measuring system or by the kiln drying method (DIN 287):
1. Measure your paper with the characteristic curves that have a realistic value and note the
measurement results of the characteristic curves.
2. Note the actual value of the online humidity measurement or carry out a reference measurement
according to EN ISO 287.
3. The measurement values of the PCE-PM 3 have to be compared to the actual measurement
value of the reference measurement. Use the calibration curve with the measuring result nearest
to the reference water content.
4. The name of the characteristic curve can be changed to your paper name.
5.2.2

Determining the reference water content

The instrument shows the water content which means that the moisture will be calculated in reference to
the total mass (EN ISO 287)

Mn Mt

% WG
Mn
Mn: Mass of the sample before the drying process
Mt: Mass of the dried sample
%WG: Estimated water content
5.2.3

Overview of characteristic curves

When one of the arrow keys is pressed for three seconds there will be an overview of the characteristic
curves shown on the display. A characteristic curve can be selected and applied by the power button.
Name
600 paper
650 paper
700 paper
750 paper
800 paper
850 paper
900 paper
950 paper
1000 paper
1050 paper
1100 paper
1200 paper
1300 paper
1400 paper
1500 paper
1600 paper
Empty 1700
Empty 975
Empty 550
Reference
BETRIEBSANLEITUNG

100
Type of paper
Paper with very low density
Paper with low density
Paper with low density
Fluting, bogus paper
Newsprint paper
Kraftliner brown
Kraftliner white Top, Testliner brown
Testliner white, copy paper
Copy paper
Copy paper satined
Copy paper satined
LWC satined
Leaflet paper
Leaflet paper
Leaflet paper with high density
Leaflet paper with very high density
For the calibration by the user
For the calibration by the user
For the calibration by the user
! To check the instrument
Density
600 kg/m³
650 kg/m³
700 kg/m³
750 kg/m³
800 kg/m³
850 kg/m³
900 kg/m³
950 kg/m³
1000 kg/m³
1050 kg/m³
1100 kg/m³
1200 kg/m³
1300 kg/m³
1400 kg/m³
1500 kg/m³
1600 kg/m³
17