Velleman DVM 68 Bedienungsanleitung PDF herunterladen (Seite 6)

DVM68

25.02.2011

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

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

Display

Function Switch/Power Switch

Range Control Button

Ω

/F Input

Jack

Data Hold button

COM Input Jack

AC/DC Current of / Selecting Button

mA/Cx Input Jack

Socket for Transistor Test

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