Safety Precautions And Procedures; Preliminary - Refco X-475 Instructions

1 Safety precautions and procedures

This meter is in compliance with safety Standards EN 61010-1 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
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
Danger high voltage: risk of electric shocks
Double insulated meter
AC voltage or current
DC voltage or current

1.1 Preliminary

•
This instrument has been designed for use in environments of pollution degree 2.
•
It can be used for VOLTAGE and CURRENT measurements on installations of overvoltage.
CAT III 1000V and CAT IV 600V.
•
This instrument is not suitable for measurements of non sine wave voltage and current.
•
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.
•
Do not test or connect to any circuit exceeding the specified overload protection.
•
Do not effect measurements under environmental conditions exceeding the limits indicated in
paragraphs 6.1.1 and 6.2.1.
•
Make sure that batteries are properly installed.
•
Before connecting the test probes to the installation make sure that the rotary selector is
positioned on the right function.
•
Make sure that LCD and rotary selector indicate the same function.
EN-2
. When