Precautions For Use; Measurement Categories - Metrix MX 407 Manual De Instrucciones

PRECAUTIONS FOR USE

This device complies with
(Ed 2–2001) for voltages up to 600V in category IV, at an altitude of
less than 2000m, indoors, with a pollution level of not more than 2.
These safety instructions are intended to ensure the safety of
persons and proper operation of the device. If the tester is used
other than as specified in this data sheet, the protection provided by
the device may be impaired.
Do not use the instrument in an explosive atmosphere or in the
presence of flammable gases or fumes.
Do not use the instrument on networks of which the voltage or
category exceeds those mentioned.
Do not exceed the rated maximum voltages between terminals or
with respect to earth.
Do not use the instrument if it appears to be damaged,
incomplete, or not properly closed.
Before each use, check the condition of the insulation on the
leads, housing, and accessories. Any element of which the
insulation is deteriorated (even partially) must be set aside for
repair or scrapped.
Use leads and accessories rated for voltages and categories at
least equal to those of the instrument.
Observe the environmental conditions of use.
Do not modify the instrument and do not replace components with
"equivalents". Repairs and adjustments must be done by
approved qualified personnel.
Replace batteries as soon as the
display unit. Disconnect all leads before opening battery
compartment cover.
Replace the defective fuse with a fuse having identical
characteristics. Disconnect all leads before opening the fuse
compartment cover.
Use personal protective equipment when conditions require.
When handling probes or contact tips, keep your fingers behind
the guards.

MEASUREMENT CATEGORIES

Definitions of the measurement categories according to standard
IEC 61010-1:
CAT I: Circuits not directly connected to the network and specially
protected.
Example: protected electronic circuits.
CAT II: Circuits directly connected to the low-voltage installation.
Example: power supply to household electrical appliances and
portable tools.
CAT III: Power supply circuits in the installation of the building.
Example: distribution panel,
machines or devices.
CAT IV: Circuits supplying the low-voltage installation of the
building.
Example: power lines, meters, and protection devices.
safety standard IEC-61010-1
symbol appears on the
circuit-breakers, fixed industrial
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