GANN HYDROMETTE HB 30, Руководство по эксплуатации

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When the M 18 electrode is supplied with the meter, 10 spare pins 40 mm and 60 mm long
(without insulated shank) are included in the delivery. They are suitable for measuring wood
up to 120 mm and 180 mm thick respectively. For testing timber with higher shell m.c. than
core m.c., e.g. if boards were exposed to rain, electrode pins with insulated shank should be
used. They are available in packets of 10 pins and in lengths of 45 mm
(Ref. No. 4550)
and 60
mm
(Ref. No. 4500) .
Test Standard for Wood Moisture Measuring Curcuit
The test standard
(Ref. No. 6070)
permits to check the meter as well as the connection cable
and the measuring electrodes M 18 and M 20 both in respect to proper function and accurate
readings.
To do so, connect the cable to the meter and insert the two plugs of the cable into the bush-
ings of the test standard. If the measuring electrode is to be included in the check, connect
electrode to the cable and insert the two electrode pins into the bushing of the test standard.
Set wood species selector (4), contrary to the indication on the test standard, to position 3
and press measuring key (5). The meter should read 18.1 %. The admissible tolerance is
±
0.5
%. The meter and the test standard should have a temperature of about 20 °C.