HT instruments MACROTEST G3 - Manual (Page 4)

MACROTESTG3 - COMBIG3
EN - 3
1. PRECAUTIONS AND SAFETY MEASURES
The instrument has been designed in compliance with directives IEC/EN61557 and
IEC/EN61010-1 relevant to electronic measuring instruments. Before and after carrying out
the measurements, carefully observe the following instructions:
 Do not carry out any voltage or current measurement in humid environments.
 Do not carry out any measurements in case gas, explosive materials or flammables are
present, or in dusty environments.
 Avoid any contact with the circuit being measured if no measurements are being
carried out.
 Avoid contact with exposed metal parts, with unused measuring probes, etc.
 Do not carry out any measurement in case you find anomalies in the instrument such
as deformations, breaks, substance leaks, absence of display on the screen, etc.
 Pay special attention when measuring voltages higher than 25V in special
environments (such as construction sites, swimming pools, etc.) and higher than 50V in
normal environments, since a risk of electrical shock exists.
 Only use original HT accessories.
The following symbols are used in this manual:
CAUTION: observe the instructions given in this manual; improper use could
damage the instrument, its components or create dangerous situations for the
operator.
High voltage danger: electrical shock hazard.
Double insulation
AC voltage or current
DC voltage or current
Connection to earth
The symbol indicates that the instrument must not be connected to systems with
phase-to-phase rated delta voltage higher than 415V.
1.1. PRELIMINARY
INSTRUCTIONS
 This instrument has been designed for use in the environmental conditions specified in
§ 10.4.1. Do not use in different environmental conditions.
 The instrument may be used for measuring and verifying the safety of electrical
systems. Do not use on systems exceeding the limit values specified in § 10.3.
 We recommend following the normal safety rules devised to protect the user against
dangerous currents and the instrument against incorrect use.
 Only the accessories supplied with the instrument guarantee compliance with safety
standards. They must be in good conditions and be replaced with identical models,
when necessary.
 Make sure the batteries are correctly installed.
 Before connecting the test leads to the circuit being measured, check that the desired
function has been selected.