Safety Note - Benning IT 105 Bedienungsanleitung


Warning of electrical danger!
Indicates instructions which must be followed to avoid danger to persons.
Important, comply with the documentation!

This symbol indicates that the stipulations in the operating instructions must be followed in order
to avoid danger.
Do not use the tester in distribution systems with voltages higher than 440 V.
 > 440 V
The tester is overheated. The "Hot" symbol is shown on the digital display 2 and measurements
are interrupted until the internal temperature has dropped below the admissible limiting value.
Disconnect the tester from the test object and switch off the tester.
This symbol on the BENNING IT 105 means that the BENNING IT 105 complies with the EU
directives.
This symbol appears on the display to indicate a discharged battery. As soon as the battery sym-
bol flashes, immediately replace the batteries by new ones.
This symbol appears on the display to indicate a defective fuse (see section 9.4 "Fuse replace-
ment").
(DC) Direct voltage or current

(AC) Alternating voltage or current

Earth (voltage to ground)

Protection class II

2. Safety note

The instrument is built and tested in accordance with
VDE 0411 part 1/ DIN EN 61010-1
VDE 0411 part 2-030/ DIN EN 61010-2-030, VDE 0411 part 031/ DIN EN 61010-031
VDE 0413 part 1, 2, 3, 4, 6, 7 and 10/ DIN EN 61557-1, -2, -3, -4, -6, -7 and 10
and has left the factory in perfectly safe technical condition. To maintain this condition and to ensure safe
operation of the installation tester, the user must observe the notes and warnings given in these instruc-
tions 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 conductors or main line carrier!
Contact with live conductors will cause an electric shock!

Remember that work on electrical components of all kinds is dangerous. Even low voltages
of 30 V AC and 60 V DC may be dangerous to human life.
The unit may be used only in power circuits within overvoltage category III with a conduc-
tor for 300 V against ground.
Only use suitable measuring leads for this. With measurements within measurement cat-
egory III, the projecting conductive part of a contact tip of the measuring leads must not

be longer than 4 mm.
Prior to carrying out measurements within measurement category III, the push-on caps
provided with the set and marked with CAT III must be pushed onto the contact tips. The
purpose of this measure is user protection.
The protective conductor resistance measurement might be distorted by impedances con-

nected in parallel of additional operating circuits and by transient currents.
06/ 2018
BENNING IT 105

16