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Differential digital tester 11
General instructions
Introduction
This tester has been designed and tested according to IEC Publication 348, Safety
Requirements for Electronic Measuring Apparatus IEC-1010 (EN 61010).
Electricity can cause severe injuries even wtih low voltages or currents. Therefore it is
extremely important that you read the following information before using your Digital
RCD 501. We will not accept liability for any damage or injury caused by misuse or
non compliance with instructions and safety procedures.
Precautions and
safety measures
• This tester must only be used and operated by a competent trained
person and in strict accordance with the instructions.
• Never open your tester except for battery replacement. (See §.
Battery replacement).
• Always inspect you tester and test leads before use for any sign of
abnormality or damage. If any abnormal conditions exist (broken test
leads, cracked case, display faulty, etc …) do not attempt to take any
measurement or use the tester. Return your tester to your nearest
distributor for service.
• Replace the protective fuse only with another of the same type than the
one specified or approved equivalent.
• Your tester has been designed with your safety in mind. However, no
design can completely protect against incorrect use. Electrical circuits
can be dangerous, and/or lethal when a lack of caution or poor safety
practice is used.
• Use caution in the presence of voltage above 24 V as these pose a
shock hazard.
• Pay attention to cautions and warnings which will inform you of
potentially dangerous procedures.
Environmental
Rated environmental conditions :
•
indoor use
•
Installation Category III 300 V
•
Pollution Degree : 2
•
Altitude up to 2000 m
•
Relative humidity 80 % max
•
Ambient temperature: 0 to 40°C
definition of
installation
categories
(cf. IEC 664-1)
CAT I : CAT I circuits are protected by devices designed to minimize transient
overvoltages at a low level.
E.g.: protected electronic circuits
CAT II : CAT II circuits are domestic or similar equipment power supply circuits that can
include average value transient overvoltages.
E.g.: power supply to domestic appliances and portable tools.
CAT III : CAT III circuits are circuits for power equipment power supplies which may include
high transient overvoltages.
E.g.: machine or industrial apparatus power supply.
CAT IV
: CAT IV circuits are circuits that can include very high transient overvoltages.
E.g.: energy inputs
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