Manual Velleman DVM894 (page 13 of 110) (English, German, Dutch, French, Polish, Portuguese, Spanish)

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DVM894

V. 01 – 21/01/2015 13 ©Velleman nv

Fuse Replacement

USE ONLY FUSES OF THE SPECIFIED TYPE, RATINGS, AND SPEED

(F250MA/250 V, F10A/500 V CERAMIC). THE FUSE RARELY NEEDS TO BE

REPLACED AND A BLOWN FUSE IS ALMOST ALWAYS CAUSED BY A HUMAN

ERROR. TO AVOID SHOCK OR PERSONAL INJURY, BEFORE OPENING THE

HOUSING, ALWAYS TURN OFF THE METER AND DISCONNECT THE TEST

LEADS.

1. Switch off the meter.

2. Remove the test probes from the circuit under test. Remove the test leads

from the input sockets.

3. Remove the battery.

4. Remove the protective cover, unscrew the screws at the back of the meter

and gently open the housing.

The fuses are located at the bottom of the PCB.

5. Replace the blown fuse with a fuse of the same type and rating.

6. Close the housing and tighten the screws. Put the protective cover back.

7. Place the battery back and close the battery cover.

Storage

 Remove the batteries from the device if it will not be used for a long time. Old

batteries can begin to leak and damage the device.

 Do not store the device in a high temperature or high humidity environment.

Fuse Replacement

REPLACE THE TEST LEADS WITH IDENTICAL OR COMPATIBLE LEADS.

LEAD SPECIFICATIONS: 1000 V, 10 A.

 Replace worn leads.

9. Technical Specifications

DC Voltage

range

resolution

accuracy

200 mV

0.1 mV

± (0.5 % of readings + 2 digits)

2 V

1 mV

20 V

10 mV

200 V

100 mV

600 V

1 V

± (0.8 % of readings + 2 digits)

 Max. input voltage: 250 VDC at 200 mV range, 600 VDC elsewhere.

 Input impedance: 10 MΩ.

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Velleman DVM894 Manual

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