cal. low:
cal. high:
calibration:
NP= 028
NP= 028
NP= 028<
UM= 031
UM= 031
UM= 031
F= 248
F= 223<
F= 000
MV= 202
MV= 199
MV= 000
Basic Calibration:
start calibration procedure with code 97
1.
zero point
The zero point only can be tested, not adjusted. On the display the zero
point (NP) and the actual measuring value (UM) are shown. At the test
the sensors have to be clean and dry! The instrument has to be hold free
into the air. Than wait till NP and UM are nearly equal. The value should
be between 10 and 390. Is UM <1 or > 400, then no zero point
calculation is working, in this case the instrument needs to be repaired.
With the OK-button to the next calibtration step.
2.
measuring in test module PE50R at high amplification
As shown on the picture, the instrument has to be sticked into the test
module.With the arrow buttons the factor (F) can be changed till the
display shows MV=200.
With OK-button to the next step.
3.
measuring in test module PE50R at low amplification
With the arrow buttons the factor (F) can be changed till the display
shows MV=200.
With OK-button the changed factors will be stored.
The factors can be changed in the range 150 - 255. If this is not enough, the
instrument needs to be repaired.
page 4
Moisture meter type DS5-AL
Oven Drying Method:
The oven drying method is the most accurate way to measure the material
moisture in paper NORM EN20 287 or DIN ISO 287or wood DIN 52183.
We recommend this for testing and calibrating of our moisture meters.
Short description:
-
for measuring the weights we recommend a balance with an measuring
range of 200g and an accuracy of 0,01g
-
For drying you need an oven with adjustable temperatures of 105°C
-
Take a sample from the waste paper, avoid border parts. The sample
should be at least 20g
-
It is very important to take the first weight of the sample immediately, as
air humidity may change the moisture content.
Name of the first weight: wet weight (WW)
-
The probe must be dried in the oven until the weight is constant,
the maximum drying temperature: 105 °C (ISO 287),
-
the name of the dry weight is DW
-
moisture calculation:
DIN 52183:
MOISTURE = 100% * (WW - DW) / DW
DIN ISO 287:
MOISTURE = 100% * (WW - DW) / WW
