HT instruments HT82 - Manual (Page 15)

HT82
EN - 2
1. SAFETY PRECAUTIONS AND PROCEDURES
This meter is in compliance with safety standards EN61557 and EN61010-1 related to
electronic measuring instruments. For your own safety and to avoid damaging the
instrument follow the procedures described in this instruction manual and read carefully all
notes preceded by this symbol
. When taking measurements:
• Avoid doing that in humid or wet places - make sure that humidity is within the limits
indicated in paragraph 6.2.1.
• Avoid doing that in rooms where explosive gas, combustible gas, steam or excessive
dust is present.
• Keep you insulated from the object under test.
• Do not touch exposed metal parts such as test lead ends, sockets, fixing objects,
circuits etc.
• Avoid doing that if you notice anomalous conditions such as breakages, deformations,
fractures, leakages of battery liquid, blind display etc.
• Be particularly careful when measuring voltages exceeding 20V to avoid risk of
electrical shocks.
The following symbols are used:
CAUTION – refer to the instruction manual - an improper use may damage the
instrument or its components.
Double insulated meter. DC or AC voltage or current.
1.1. PRELIMINARY
• This instrument has been designed for use in environments of pollution degree 2.
• It can be used for testing the phase sequence on installations of overvoltage CAT IV
300V and CAT III 600V to the ground.
• When using the instrument always respect the usual safety regulations aimed at
protecting you against the dangerous electric currents and protecting the instrument
against incorrect operations.
• Only the leads supplied with the instrument guarantee compliance with the safety
standards in force. They must be in good conditions and, if necessary, replaced with
identical ones.
• This instrument is not suitable for measurements of non sine wave voltage.
• Do not test or connect to any circuit exceeding the specified overload protection or
under environmental conditions exceeding the limits indicated in paragraphs 6.1.1 and
6.2.1.
1.2. DURING
USE
We recommend carefully reading the following recommendations and instructions:
CAUTION
An improper use may damage the instrument and/or its components or
injure the operator.
When the instrument is connected to measuring circuits never touch any unused terminal.