materials:
wood, building materials, paper and cardboard
Measuring Ranges:
wood:
0,0 -99,9 % H O
2
building materials:
0,0 -20,0 % H O
2
paper and cardboard:
0,0 -50,0 % H O
2
material temperature range:
5 -40°C
working temperature range:
5 -40°C
storage temperature range:
-20 -70°C
Method of Operation:
The measuring electrodes
of the meter are pushed during the measuring process on the material to be
measured ‚ so that a high frequency electrical field is able to pass through the material. A micro processor
receives the measured signals and determines from the measured value the percentage water content taking into
account the material setting group.
Measuring Principle:
The meter works in accordance with the principle of an opened plate capacitor. The capacity of the capacitor
depends on the material-(dielectric)-constant of the material in between the plates. Compared with air (
r
» 1) , for
example water has a very high dielectric-constant (e » 80). The water content of a wet material can therefore be
determined
r
by determining the dielectric constant of this material.
Safety Tips:
follow the operating instructions
only use the meter as directed (see page 1)
.
keep the meter away from live and current carrying parts
.
avoid impacts
.
protect the meter from heat
.
keep the meter dry and try to prevent dirt from entering the case
.
protect the meter from electrostatic discharge.
.
the meter must be repaired or serviced only by qualified specialists
Damages caused by failure to follow the above Safety Tips are not covered by the warranty !
Summary of Contents for DM 4 A
Page 1: ...Feuchtigkeitsmessger te Moisture Meter Humidim tre...
Page 4: ......
Page 6: ......
Page 7: ......
