Velleman DVM345DI Manuel d'utilisateur télécharger pdf (Page 3)

DVM345DI GB

2.3. Maintenance

• Always disconnect the test leads from all current sources before opening the meter.

• Replace blown fuses with an identical one or a fuse with identical voltage and current ratings

(15A/250V).

• Do not use the device and have it checked by qualified personnel if anomalies are observed

or in case of malfunction.

• Use a damp cloth and a mild detergent to clean the device. Never apply abrasives or

solvents to the meter.

3. DESCRIPTION

This device is a professional auto-ranging measuring instrument. All measured values are

displayed on a 3 ¾ digit LCD. The device is equipped with a 38-segment bar graph and can be

used to measure DC & AC voltages (both auto-ranging), DC & AC current, temperature,

resistance (auto-ranging) and capacitance. The user can also test diodes, transistors and

audible continuity.

3.1. "ON/OFF"-push button

Used to turn the device ON or OFF. The beeper sounds when this button is pushed.

3.2. DC/AC-RU  -button

8VHGWRVHOHFW'&RU$&YROWDJHUDQJH'&RU$&FXUUHQWUDQJH RU range. The beeper

sounds when this button is pushed.

3.3. "R-H" button

Press this button to switch to manual operation when the device is in the auto-ranging mode. "R-H"

will be displayed. Hold the button for more than one second to return to the auto-ranging mode.

Push this button to change the voltage ranges as follows : 4V → 40V → 400V → 1000V.

3XVKWKLVEXWWRQWRFKDQJHWKHUHVLVWDQFHUDQJHVDVIROORZV0 →0 →N →N 

→N →

3.4. "B/L"-button

Press this button to turn the back light ON or OFF.

3.5. Input Jacks

This meter has 4 input jacks with overload protection. Connect the black test lead to the "COM"-

jack and the red test lead to the following input jacks :

Function Red Lead Connection Input Limit

VDC/VAC 9 1000VDC or 750Vrms AC

9 250VDC or 250Vrms AC

mA mA 400mA DC or rms AC

10A 10A 10A DC or rms AC

1 2 3 4 5 6 7 8

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Velleman DVM345DI Manuel d'utilisateur Page 3