Velleman DVM68 Bedienungsanleitung Seite 6

5. Pollution degree
IEC 61010B1 specifies different types of pollution environments, for which d
measures are necessary to ensure safety. Harsher environments require m
protection against the pollution which is to be found in a certain environme
the insulation and the enclosure properties. The pollution degree rating of t
which environment the device may be used.
Pollution degree 1 No pollution or only dry, nonconductive pollution occurs
influence (only to be found in hermetically sealed enclos
Pollution degree 2 Only nonconductive pollution occurs. Occasionally, temp
caused by condensation is to be expected (home and of
under this category).
Pollution degree 3 Conductive pollution occurs, or dry nonconductive pollut
becomes conductive due to condensation that is to be e
environments and environments exposed to outside air
with precipitation).
Pollution degree 4 The pollution generates persistent conductivity caused b
rain or snow. (exposed outdoor environments and envir
humidity levels or high concentrations of fine particles o
Warning:
This device was designed in accordance with EN 61010B1 pollution degre
certain restrictions in use apply that are related to pollution which can occu
environment of use. Refer to the table above.
This device is only suitable for measurements in Pollution de
environments.
6. Description
Refer to the illustration on page 2 of this manual.
a. Multimeter
1 Display
2 Range Control Button
3 Data Hold button
4
AC/DC Current of
5 Socket for Transistor Test
b. Range Control Button
Range for AC/DC voltage, AC/DC current(IA and mA only), Resistance
measuring can be selected manually or autorange. Push this button as
range the desired mode or range.
25.02.2011
DVM68
/ Selecting Button
6
h different protective
more protection, and the
ment depends mainly on
of the DVM indicates in
urs. The pollution has no
closures).
mporary conductivity
office environments fall
llution occurs that
e expected (industrial
ir B but not in contact
d by conductive dust or by
vironments where high
s occur)
gree 2. This implies that
ccur within the
degree class 2
6 Function Swit witch/Power Switch
7 V/Ω/F Input J Jack
8 COM Input Ja Jack
9 mA/Cx Input ut Jack
10 10A Input Jac Jack
ce and Frequency
as following to choose
Rev. 01
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