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Perel EVM892 Manual

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EVM892
29.04.2010 ©Velleman nv
6
o measurements on mono-phase appliances which are connected to the
mains by means of a plug
o mono-phase appliances and circuits directly connected to the mains in a
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, portable tools, light circuits at more than 10m
from a distribution board …
This device is NOT suitable for:
• Voltages above 600V
• measurements in/on low-voltage distribution boards (distribution boards
behind meter box)
• measurements on (fixed) mono- or poly-phased appliances and circuits in CAT
III / CAT IV-environments (e.g. mains outlets, electric ovens, lighting circuits,
bus bars, low-voltage distribution boards and circuit breakers).
• 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 II
environments.
5. Pollution degree
IEC 61010-1 specifies different types of pollution environments, for which different
protective measures are necessary to ensure safety. Harsher environments require
more protection, and the protection against the pollution which is to be found in a
certain environment depends mainly on the insulation and the enclosure
properties. The pollution degree rating of the DVM indicates in which environment
the device may be used.
Pollution
de
g
ree 1
No pollution or only dry, nonconductive pollution occurs. The pollution
has no influence
(
onl
y
to be found in hermeticall
y
sealed enclosures
)
.
Pollution
degree 2
Only nonconductive pollution occurs. Occasionally, temporary
conductivity caused by condensation is to be expected (home and
office environments fall under this cate
g
or
y)
.
Pollution
degree 3
Conductive pollution occurs, or dry nonconductive pollution occurs that
becomes conductive due to condensation that is to be expected
(industrial environments and environments exposed to outside air -
but not in contact with
p
reci
p
itation
)
.
Pollution
degree 4
The pollution generates persistent conductivity caused by conductive
dust or by rain or snow. (exposed outdoor environments and
environments where high humidity levels or high concentrations of fine
p
articles occur
)
Warning:
This device was designed in accordance with EN 61010-1 pollution degree 2.
This implies that certain restrictions in use apply that are related to pollution which
can occur within the environment of use. Refer to the table above.
This device is only suitable for measurements in Pollution degree
class 2 environments.
… 6 …


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