1. Application
The Prüfball ZAP 350L is a two-pole voltage tester
with LCD and LED indication in accordance with
EN/IEC 61243-3.
You can use the Prüfball ZAP 350L to measure d.c.
and a.c. voltages in the rated voltage ranges menti-
oned on the back, determine polarity, phase, phase
sequence and continuity.
Thanks to its high degree of protection (IP65) the
Prüfball may even be used in rain.
1.1 Intended use
This device is intended for use in applications as
described in the operating instructions only. Thus,
it is imperative to observe the notes on safety and
the technical data in conjunction with the ambient
conditions.
Any other form of usage is not permitted and can
lead to accidents or destruction of the unit.
Any misuse will result in the expiry of all guarantee
and warrantly claims.
2. Safety Precautions
When used for its intended purpose, the safety of
the operator, as well as that of the instrument, is
assured.
In order to maintain flawless technical safety con-
ditions, and to assure safe use, it is imperative that
you read these operating instructions thoroughly
and carefully before placing your instrument
into service, and that you follow all instructions
contained therein.
Observe the following safety precautions:
The voltages indicated on the Prüfball ZAP are
rated voltages. The voltage tester may only be
used in systems working within these rated
voltage ranges.
Faultless indication of display values is only
guaranteed between -15° and +45°C.
Hold the instrument by the handgears only, to
avoid covering the display and not touching the
test electrodes.
The maximum on-period is 30 seconds.
Only qualified persons may carry out work with
these device. The user needs to be farmiliar with
the risks for measuring voltage and compliance
with safety regulations and the proper use of the
voltage detector.
Workings may only be performed with appropri-
ate personal protective equipment.
Observe the minimum object distance to other
plant components that are energized or earthed
and use personal protective equipment as speci-
fied by national accident prevention regulations
(in Germany: BGV A3 or DIN EN 50110-1).
The function of the voltage tester must be
checked briefly before and whenever possible
after the use. Carry out the function test and
check the instrument at a known voltage source
(AC and DC). If the indication of one or several
systems fails in the course of checking, the
instrument must not be used again.
15
