DVM1090 GB
7
5. Operating Instructions
5.1. Using the Data Hold Button
Press this button if you want the device to hold the measured value. Press this button again to disengage the data
hold button.
5.2. Backlight
Press the
LIGHT
button when it’s getting too dark to read the LCD.
The backlight extinguishes automatically after 5 seconds. Using the backlight often will shorten the life of your
batteries.
The
symbol is displayed when the battery voltage is less than 7V. 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 >
7V. In other words, you should only replace the battery if the
symbol is displayed when the backlight is not
being used.
5.3. Selecting DC or AC
Press the
DC/AC
button to alternate between DC and AC measurements. The button is pressed in for AC voltage
and AC current measurements.
5.4. Selecting L or C
Put the button in the pressed-down position for inductance and capacitance measurements. The component can now
be tested.
Put the button in the depressed position for all other types of measurement.
5.5. Preparation for Measurement
1. Press the button. The
symbol is displayed when the battery voltage < 7V, indicating that the battery
needs 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 range switch. 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.
5.6. Measuring
DC
Voltage
WARNING
Do not exceed the max. input voltage of 1000V DC !! Be very careful and avoid electroshocks when working with
high voltages.
1. Connect the black test lead to the COM jack and the red test lead to the V jack.
