7 Maintenance
Grounding
The device has to be grounded properly to measure the amount and the polarity of an electro-
static field. For that purpose the device has to be connected to ground by using the grounding
jack (4). Grounding the device by a grounded person (e.g. over conductive shoes or wrist strap)
touching the grounding jack suffices under most circumstances.
Maintenance
The modulator system or parts of it must not be touched. Those parts have to be protected of
dust, isolating impurity layers, color- or paint haze and condensate. If required the modulator
system can be cleaned with ethyl alcohol and a lint-free cotton cloth.
Battery Replacement
When „Low Battery“ appears in the display the 9V battery has to be charged (accumulator) or
renewed (alkaline). For this the device has to be turned and the battery case has to be opened by
sliding down. The battery has to be taken out and the battery clip pulled off. The clip needs to be
plugged to the new battery and put back with the battery into the device. Finally the battery
case should be closed again.
Zero Point
Under normal circumstances a zero point adjustment is not necessary. If the device does not
show U= V while the modulator system is screened (e.g. mounted cover cap) the zero point
can be adjusted using the trimmer (6) on the right side of the device. The last digit of the display
may be ignored as that error is smaller than the admissible tolerance.
Guarantee Items
We provide a 24 month guarantee in case of proper application according to the manual. Ex-
cluded of the guarantee are: The battery resp. the accumulator, damage by electric shock, wrong
grounding and mechanical damage of the device. The guarantee expires if the device was
opened.
Batteries and accumulators are not allowed in the household waste!
Every consumer must by law, dispose of all batteries and accumulators at a municipal or
commercial collection center, free of charge. Thereby, the disposal will be
environmentally friendly.
Batteries and accumulators are marked with the following symbol:
Electrical and electronic equipment are not allowed in the household waste!
When the equipment is not used anymore, every consumer must by law, separate the
equipment from the household waste and bring it to a municipal collection center. Old
electrical equipment is accepted there free of charge. This will ensure that the old
equipment is handled by experts and it will avoid negative impact on the environment.
This crossed out garbage bin means that you may not dispose of batteries and
accumulators in the household waste. Under this sign you may also find
sometimes, in addition, the following abbreviations related to the materials
contents:
Pb = lead, Cd = cadmium and Hg = mercury.
