Velleman DVM893 - Manual (Page 7)

DVM893
V. 03 – 01/02/2013 7 ©Velleman nv
• measurements on (fixed) mono- or poly-phased appliances and circuits except
in CAT IV environments (e.g. mains outlets, electric ovens, lighting circuits, bus
bars, low-voltage distribution boards and circuit breakers).
This device is NOT suitable for:
• Voltages above 1000 V
• 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 600 V in CAT III and
up to 1000 V in CAT II.
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 DMM indicates in which environment
the device may be used.
Pollution
degree 1
No pollution or only dry, nonconductive pollution occurs. The pollution
has no influence (only to be found in hermetically 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 category).
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 precipitation).
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
particles 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. Overview
Refer to the illustrations on page 2 of this manual.
1 power ON/OFF button
2 10A: input terminal for currents > 200 mA
3 hFE mA: input terminal for transistor, capacitance, and current
measurements < 200 mA