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Velleman DVM68 Manual

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DVM68
25.02.2011
6
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 degree 1
No pollution or only dry, nonconductive pollutio
n 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
under this category).
Pollution degree 3
Conductive pollution occurs, or dry nonconductive pollution occurs that
becomes conductive due to cond
ensation that is to be expected
environments and environments exposed to outside a
ir
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
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. Description
Refer to the illustration on page 2 of this manual.
a. Multimeter
1
Display
6
Function Switch/Power Switch
2
Range Control Button
7
V/
Ω
/F Input
Jack
3
Data Hold button
8
COM Input Jack
4
AC/DC Current of / Selecting Button
9
mA/Cx Input Jack
5
Socket for Transistor Test
10
10A Input Jack
b. Range Control Button
Range for AC/DC voltage, AC/DC current(µA and mA only), Resistance and Frequency
measuring can be selected manually or autorange. Push this button as following to choose
range the desired mode or range.
Rev. 01
©Velleman nv
1 specifies different types of pollution environments, for which different protective
measures are necessary to ensure safety. Harsher environments require more protection, and the
found in a certain environment depends mainly on
the insulation and the enclosure properties. The pollution degree rating of the DVM indicates in
n occurs. The pollution has no
influence (only to be found in hermetically sealed enclosures)
.
Only nonconductive pollution occurs. Occasionally, temporary conductivity
(home and office
environments fall
Conductive pollution occurs, or dry nonconductive pollution occurs that
ensation that is to be expected
(industrial
ir
- but not in contact
The pollution generates persistent conductivity caused by conductive dust or by
rain or snow. (exposed outdoor environments and environments where high
of fine particles occur)
pollution degree 2
. This implies that
certain restrictions in use apply that are related to pollution which can occur within the
This device is only suitable for measurements in Pollution degree class 2
Function Switch/Power Switch
Jack
COM Input Jack
mA/Cx Input Jack
10A Input Jack
Range for AC/DC voltage, AC/DC current(µA and mA only), Resistance and Frequency
measuring can be selected manually or autorange. Push this button as following to choose
… 6 …


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