Precautions And Safety Measures; Preliminary Instructions - HT HT64 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. For your safety and in order to prevent damaging the
instrument, please carefully follow the procedures described in this manual and read all
notes preceded by symbol
Before and after carrying out measurements, carefully observe the following instructions:
 Do not carry out any 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 any 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.
In this manual, and on the instrument, the following symbols are used:
Warning: observe the instructions given in this manual; improper use could
damage the instrument or its components.
Double-insulated meter
AC voltage or current
DC voltage or current
Connection to earth
1.1.

PRELIMINARY INSTRUCTIONS

 This instrument has been designed for use in environments of pollution degree 2.
 It can be used for VOLTAGE and CURRENT measurements on installations with CAT
IV 600V and CAT III 1000V.
 We recommend following the normal safety rules devised by the procedures for
carrying out operations on live systems and using the prescribed PPE to protect the
user against dangerous currents and the instrument against incorrect use.
 In case the lack of indication of the presence of voltage may represent a danger for the
operator, always carry out a continuity measurement before carrying out the
measurement on the live system, in order to confirm the correct connection and
condition of the leads.
 Only the leads supplied with the instrument guarantee compliance with the safety
standards. They must be in good conditions and be replaced with identical models,
when necessary.
 Do not test circuits exceeding the specified voltage limits.
 Do not perform any test under environmental conditions exceeding the limits indicated
in § 6.2.1.
 Check that the battery is correctly inserted.
 Make sure that the LCD display and the rotary switch indicate the same function.
with the utmost attention.
EN - 2
HT64