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8. MEASURING
Do not exceed the permitted max. input values. Never touch circuits or parts of circuits with a
possible voltage of more than 33 V/ACrms or 70 V/DC! Danger to life!
Before measuring, check the connected measuring lines for damage such as cuts, cracks or
pinches. Defective measuring lines must no longer be used! Danger to life!
When measuring, only touch within the tangible grip markings on the test prods.
Measuring is only permitted with the housing and the battery compartment closed.
During insulation tests, dangerous voltages can be present at the test prods. A lightning symbol
on the display warns of such voltages. The insulation may only be tested on currentless compo-
nents or devices.
As soon as “OL” (overload) appears on the display, you have exceeded the measuring range.
a) Switching on the measuring device
The measuring device is switched on using the rotary switch (5). Turn the rotary switch to select the desired measur-
ing function. Turn the rotary switch to “OFF” to switch off the measuring device. Always switch off the measuring
device when it is not in use (“OFF” position).
Before the measuring device can be used, the enclosed batteries have to be inserted. See chap-
ter “Cleaning and maintenance” for information on inserting and replacing the batteries.