Safety Instructions - Benning CM 1-4 Bedienungsanleitung

2.

Safety instructions

The instrument is built and tested in accordance with
DIN VDE 0411 Part 1/ EN 61010-1
DIN VDE 0411 Part 2-032/EN 61010-2-032
DIN VDE 0411 Part 2-033/EN 61010-2-033
DIN VDE 0411 Part 031/EN 61010-031
and has left the factory in perfectly safe technical condition.
To preserve this condition and to ensure safe operation of the device, the user
must observe the notes and warnings given in these instructions at all times.
Improper handling and non-observance of the warnings might involve severe
injuries or danger to life.
WARNING! Be extremely careful when working with bare con-
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ductors or main line carrier! Contact with live conductors will
cause an electric shock!
The BENNING CM 1-4 must be used in electrical circuits of over-
voltage category III with a conductor for a maximum of 1000 V
to earth or of overvoltage category IV with a conductor for a
maximum of 600 V to earth only.
Only use suitable measuring leads for this. With measurements
within measurement category III or measurement category IV,
the projecting conductive part of a contact tip of the measuring
leads must not be longer than 4 mm.
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Prior to carrying out measurements within measurement cat-
egory III and measurement category IV, the push-on caps pro-
vided with the set and marked with CAT III and CAT IV must be
pushed onto the contact tips. The purpose of this measure is
user protection.
Please observe that work on live parts and electrical compo-
nents of all kinds is dangerous! Even low voltages of 30 V AC
and 60 V DC may be dangerous to human life!
When measuring voltages >300 V, never apply voltage to the
BENNING CM 1-4 for longer than 30 seconds. For voltages

>300 V, the maximum switch-on time is tON: 30 s and the recov-
ery time tOFF: 240 s.
Before starting the current clamp multimeter, always check the

device as well as all measuring leads for damages.
When using the BENNING CM 1-4, always hold it at the rubber-

ized gripping surface behind the grip limit.
If it can be assumed that safe operation is no longer possible, switch the device
off immediately and secure it against unintended operation.
Safe operation can be assumed to be no longer possible, if
- the device or the measuring leads exhibit visible damages,
- the device no longer works,
- the device has been stored under unfavourable conditions for a longer period
of time,
- the device was exposed to extraordinary stress during transport, or
- if the device or the measuring leads are exposed to moisture.
In order to prevent danger
- do not touch the bare contact tips of the measuring leads,
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- plug the measuring leads into the correspondingly marked
measuring sockets of the multimeter and check them for
tight fit.
Maintenance:
Do not open the multimeter, because it contains no components

which can be repaired by the user. Repair and service must be
carried out by qualified personnel only!
09/ 2019
BENNING CM 1–4
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