6
7. Maintenance
Do not touch the modulator system to prevent mechanical damages. Avoid any insulating
build up as e.g. dust, paint or varnish dust, condensed water or similar influence.
If it is necessary the modulator system may be cleaned with alcohol and a soft fuzzy-free
cloth.
7.1
Charge the 9V NiMH - battery
The 9V block-battery has to be charged when “Low Battery” appears at the display.
Please use only the original Charger to charge the battery.
7.2
Zero Adjust
A zero adjustment is normally not needed. In case, that the unit does not indicate U=00X
while the modulator system is shielded (e.g. grounded person covers the modulator system
with one hand), use the trimmer (6) for zero adjustment. The last digit can be ignored as the
caused measurement failure is much lower than the specified tolerance.
7.3
Guaranty Performance
By correct operation and in accordance to the instruction manual we allow a 24 month
warranty.
The warranty does not include: The NiMH Battery damages by electrical discharge, incorrect
grounding and mechanical damage of the Field Meter.
If you open the unit, you will lose the Guaranty !
8. Warning notice
√
It is not allowed to open the Electro field meter. If you open it, you lost the guaranty.
√
The Electro field meter is not approved for measurements in explosion hazard areas.
√
In the event of very high electrostatic charges, the Electro field meter must be grounded.
Look for an adequate distance to the test object.
√
Avoid spark discharges onto the modulator system.
√
The use of the unit in power plants is not permitted.
√
The Electro-Field meter is not equipped to detect alternating fields > 1Hz.
9. Parts of delivery
•
Transport Case with antistatic Foam Interior
•
EFM-122 with sensor
•
rechargeable 9V NiMH - Battery
•
Battery Charger
•
Coiled Grounding Cord and Crocodile Clip