BENNING IT 115
Safety and operating instructions
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Please observe that the measuring category of some accessories might be lower
than that of the installation tester. Test probes and "Commander" test probes are
provided with detachable protective caps. If these attachable protective caps are
removed, the measuring category will be reduced to CAT II. Please check the
markings of the accessories!
without attachable protective cap, 18 mm tip: CAT II 1000 V to earth
with attachable protective cap, 4 mm tip:
CAT II 1000 V / CAT III 600 V /
CAT IV 300 V to earth
The installation tester comes with rechargeable NiMh storage batteries. The
storage batteries must be replaced only as shown on the label at the battery
compartment cover or as described in this operating manual and must be
replaced with storage batteries of the same type only. Do not use standard
alkaline batteries while the charger is connected, because otherwise these
batteries might explode!
Dangerous voltages are applied to the interior of the device! Disconnect all test
cables, disconnect the charger and switch off the installation tester before
opening the cover of the battery / fuse compartment.
Absolutely observe all common safety instructions in order to avoid the risk of an
electric shock when working on electrical installations!
Warnings with regard to measurements:
Insulating resistance
Measurements of the insulating resistance must be carried out only at test objects which
are free of voltage!
Never touch the test object during measurement before it is completely discharged!
Danger of life-threatening electric shocks!
If the insulating resistance is measured on capacitive test objects, discharging might
take place time-delayed! During discharge, the warning
as well as the current
voltage (Udisch) are displayed until the voltage falls below 30 V.
Do not connect any measuring input to an external voltage higher than 550 V (AC or DC)
in order not to damage the installation tester!
Low-impedance measurement / continuity test
Low-impedance measurements / continuity tests must be carried out on discharged test
objects only!
The test result might be influenced by parallel impedances.
Testing the PE connection
If a phase voltage is detected at the PE connection, immediately stop all measurements.
Make sure that the error in the installation is eliminated before going on with the
measurements!
