Velleman DVM68 Bedienungsanleitung Seite 5

Switch off the meter and remove test probes prior to replacing the battery or fuses. Switch off the meter and remove test probes prior to replacing the battery or fuses.
All modifications of the device are forbidden for safety reasons. Damage caused by modifications of the device are forbidden for safety reasons. Damage caused by
user modifications to the device is not covered by the warranty. user modifications to the device is not covered by the warranty.
4. Overvoltage/installation category
DMMs are categorized depending on the risk and severity of transient overvoltage that might DMMs are categorized depending on the risk and severity of transient overvolt
occur at the point of test. Transients are short-lived bursts of energy induced in a system, e.g.
caused by lightning strike on a power line.
The existing categories according EN 61010-1 are:
A CAT I-rated meter is suitable for measurements on protected electronic circuits rated meter is suitable for measurements on protected electronic circuits which
CAT I
are not directly connected to mains power, e.g. electronics circuits, control signals... are not directly connected to mains power, e.g. electronics circuits, control signals...
A CAT II-rated meter is suitable for measurements in CAT I-environments
phase appliances which are connected to the mains by means of a plug and circuits in a
CAT II
normal domestic environment, provided that the circuit is at least 10m apart from a CAT normal domestic environment, provided that the circuit is at least 10m apart from a CAT
III- or 20m apart from a CAT IV-environment. E.g. household appliances,
A CAT III-rated meter is suitable for measurements in CAT I- and CAT II
as well as for measurements on (fixed) mono- or poly-phased appliances which are at
CAT III
least 10m apart from of a CAT IV-environment, and for measurements in or on
distribution level equipment (fuse boxes, lighting circuits, electric ovens
A CAT IV-rated meter is suitable for measuring in CAT I-, CAT II-
environments as well as on the primary supply level.
CAT IV
Note that for all measurements on equipment for which the supply cables run outdoors
(either overhead or underground) a CAT IV meter must be used.
Warning:
This device was designed in accordance with EN 61010-1 installation category CAT III 600V / CAT
II 1000V. This implies that certain restrictions in use apply that are related to voltages and II 1000V. This implies that certain restrictions in use apply that are related to voltages and
voltage peaks which can occur within the environment of use. Refer to the table above.
This device is suitable for measurements up to 1000V on:
•
Protected electronic circuits which are not directly connected to mains power, e.g. electronics
circuits, control signals, circuits behind isolating transformer...
•
circuits which are directly connected to mains power, but limited to:
measurements on mono-phase appliances which are connected to the mains by means of a
o
plug
mono-phase appliances and circuits directly connected to the mains in a normal domestic phase appliances and circuits directly connected to the mains in a normal domestic
o
environment, provided that the circuit is at least 10m apart from a CAT III
from a CAT IV-environment. E.g. household appliances, portable tools, light circuits at more
than 10m from a distribution board ...
This device is suitable for measurements up to 600V:
•
measurements in/on low-voltage distribution boards (distribution boards
•
measurements on (fixed) mono- or poly-phased appliances and circuits except in CAT
environments (e.g. mains outlets, electric ovens, lighting circuits, bus bars, low
distribution boards and circuit breakers).
This device is NOT suitable for:
•
Voltages above 1000V
•
Measurements on distribution equipment and outdoor installations including meter boxes and Measurements on distribution equipment and outdoor installations including meter boxes and
equipment/circuits outside or remote from the domestic environment e.g. circuits in sheds,
garden houses and free-standing garages , or circuits using underground wiring e.g. garden
lighting, pool-pump...
This device is only suitable for measurements up to 600V in CAT III
in CAT II environments.
25.02.2011
are connected to the mains by means of a plug and circuits in a
fuse boxes, lighting circuits, electric ovens).
rements on equipment for which the supply cables run outdoors
are not directly connected to mains power, e.g. electronics
that the circuit is at least 10m apart from a CAT III- or 20m apart
environment. E.g. household appliances, portable tools, light circuits at more
voltage distribution boards (distribution boards behind meter box)
standing garages , or circuits using underground wiring e.g. garden
DVM68
lived bursts of energy induced in a system, e.g.
environment. E.g. household appliances, portable tools...
1 installation category CAT III 600V / CAT
are connected to the mains by means of a
phased appliances and circuits except in CAT IV-
5
environments and mono-
and CAT II-environments,
phased appliances which are at
ments in or on
and CAT III-
r to the table above.
bus bars, low-voltage
ment e.g. circuits in sheds,
CAT III and up to 1000V
Rev. 01
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