HT instruments FULLTEST3 User Manual
Page 5
FULLTEST
3
EN - 4
1.1. PRELIMINARY INSTRUCTIONS
CAUTION
The instrument must be connected to a power socket with grounded PE terminal. If this
is not assured, the instrument will display PE DISCONNECTED, SWITCH OFF NOW
message and will perform no measurement.
The instruction manual contains information and references, necessary for safe operation and
maintenance of the instrument. Prior to using the instrument, the user is kindly requested to
thoroughly read the instruction manual and comply with it in all sections.
Failure to read the instruction manual or to comply with the warnings and references contained
herein can result in serious bodily injury or instrument damage.
In order to avoid electrical shock, the valid safety and national regulations regarding excessive
contact voltages must receive utmost attention when working with voltages exceeding 60 V DC or
50 V (25 V) RMS AC. The value in brackets is valid for limited ranges (as for example medicine).
The operator is recommended to respect the usual safety regulations aimed at protecting against
dangerous currents and protecting the instrument against improper use.
This instrument has been designed for use in environments of pollution degree 2.
It can be used for tests on electrical installations of overvoltage category III, 300V maximum
voltage to earth.
Do not effect measurements on circuit exceeding the specified voltage limits.
Only the original test leads supplied along with the instrument guarantee compliance with the
safety standards in force. They must be in good conditions and, if necessary, replaced with
identical ones.
Do not take measurements under environmental conditions exceeding the limits indicated in this
manual.
Before connecting the test probes to the installation make sure that the right function is selected.
The instrument may only be used in dry and clean environments. Dirt and humidity reduce
insulation resistance and may lead to electrical shocks, in particular for high voltages.
Never use the instrument in precipitation such as dew or rain. In case of condensation due to
temperature jumps, the instrument may not be used.
Start any test series by earth bond resistance measurement.
At earth bond resistance, insulation resistance and dielectric measurements unit under test must
be voltage-free. If necessary check the unit is voltage-free i.e. by using a voltage tester.
When modifying the instrument, the operational safety is no longer ensured.
1.2. DURING USE
CAUTION
An improper use may damage the instrument and/or its components or injure the
operator.
Only skilled technicians, who know the possible risks involved to the dangerous voltages use are
allowed to operate the instrument.
The instrument may only be connected to mains voltage as indicated on the type shield.
The instrument may only be used within the operating ranges as specified in the technical data
section.
Disconnect the test leads from the circuit under test before selecting any function.
Only touch test leads and test probes at handle surface provided. Never directly touch test probes.
Never touch any unused terminal when the instrument is connected to circuits.