Precautions And Safety Measures; Preliminary Instructions - HT MPP300 Manuel D'utilisation

1. PRECAUTIONS AND SAFETY MEASURES

The instrument has been designed in compliance with directive IEC/EN61010-1 relevant to
electronic measuring instruments. Before and while carrying out measurements, observe
the following indications and read all notes preceded by the symbol
attention
In case the instrument is used in a way different from the one described in this
user manual, this could result in a failure of the protections the instrument is
provided with
 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 contact with the circuit being measured if no measurements are being carried out
 Avoid contact with exposed metal parts, with unused measuring probes, circuits, etc
 Do not carry out any measurement in case you find anomalies in the instrument such as
deformation, breaks, substance leaks, absence of display on the screen, etc
 Pay special attention when measuring voltages higher than 20V, since a risk of
electrical shock exists
 Only use original accessories
In this manual, and on the instrument, the following symbols are used:
CAUTION: observe the instructions given in this manual; an improper use could
damage the instrument or its components
High voltage danger: electrical shock hazard
Double insulation
DC voltage or current
AC voltage or current
Connection to earth
1.1.

PRELIMINARY INSTRUCTIONS

 This instrument has been designed for use in an environment with pollution level 2 and
in the environmental conditions specified in § 8.4. Do not use in different environmental
conditions
 We recommend following the normal safety rules devised to protect the user from
dangerous currents and the instrument from an incorrect use
 The instrument may be used for measuring VOLTAGE in CAT III 1000V DC or CAT IV
300V AC to earth. Do not use on systems exceeding the limit values specified in § 8
 The instrument may be used for measuring CURRENT by means of external clamp
transducers
 Only original HT accessories guarantee safety standards. They must be in good
conditions and replaced with identical models, when necessary
 Before connecting the measuring cables to the circuit being measured, check that the
instrument has been correctly set
CAUTION
EN - 2
MPP300
with the utmost