Precautions And Safety Measures; Preliminary Instructions - HT COMBITEST422 User Manual

1. PRECAUTIONS AND SAFETY MEASURES

The instrument has been designed in compliance with guidelines IEC/EN61557, BS7671
17th and 18th editions and IEC/EN61010, 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 to be measured if no measurements are being carried
out.
• Avoid contact with exposed metal parts, with unused measuring leads, 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 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 § 10.1
• 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.
EN - 4
COMBITEST422
Kommenterede [S1]: Nel disegno c'è scritto 460V, 415 è
corretto?