Range Selection; Backlight; Preparation For Measurement; Measuring Dc Voltage - Velleman DVM860BL Mode D'emploi

6.3. Func. Button
Press this button during current and voltage measurements to alternate between DC and AC.
Press the button during temperature measurements to alternate between °C and °F.
Press the button while testing diodes or continuity to alternate between these two.

6.4. Range Selection

The auto range setting is used when measuring current, voltage and resistance. Press the RANGE button to select
the manual range setting. The next level up is selected each time you press the button. Press the button when the
highest range is selected in order to select the lowest range.
Hold the button for more than 2 seconds to return to the auto range setting.

6.5. Backlight

Press the button when it's getting too dark to read the LCD.
The backlight extinguishes automatically after 15 seconds. Hold the button for 2 seconds to extinguish the backlight.
Remember that using the backlight often will shorten the life of your batteries.
The symbol is displayed when the battery voltage is less than 4V. Note, however, that this symbol may be
displayed because you are using the backlight (which uses a lot of power), even though the actual battery charge >
4V. In other words, you should only replace the batteries if the
being used.
6.6. Auto Power Off
The device will deactivate automatically if no button is pressed for 15 minutes. The auto power off function is
announced by five short beeps and one long one. Touch an arbitrary button or the selector to restore the device to
normal working condition. Press the DATA HOLD button while the device is powering on if you want to disable the
auto power off function.

6.7. Preparation for Measurement

1. Press the ON/OFF button. The
batteries need to be replaced.
2. The next to the INPUT jack means that the input voltage or current should not exceed the specified limit
values in order to prevent damage to the meter.
3. Select a function and a range with the selector. Place the range selector in the highest position if the range is
unknown beforehand.
4. First connect the black test lead (mass) and then the red one (+) to avoid electroshocks.

6.8. Measuring DC Voltage

WARNING
Do not exceed the max. input voltage of 600V DC!! Be very careful and avoid electroshocks when working with high
voltages.
1. Connect the black test lead with the COM jack and the red test lead with the INPUT jack.
2. Put the range switch in the desired V-range position.
3. Press the FUNC. button to select DC measurement. Select manual or auto range selection with the RANGE
button.
4. Connect the test leads with the source or load under measurement.
5. Read the measured value from the LCD. The polarity of the red lead connection is also indicated.
DVM860BL
symbol is displayed when the battery voltage < 3.8V, indicating that the
- 6 -
symbol is displayed when the backlight is not
VELLEMAN