VOLTCRAFT 1890138 Mode D'emploi page 30

5. Using the REL/PC (Log/◄) and MAX/MIN (View/►) buttons, you can now select the hours,
minutes, and seconds. Set the values with the H/LIGHT (+/COMP) or RANGE (-) buttons.
6. Once the settings are correct, press the SHIFT/SETUP button to set the date (menu item "SET
DATE"). Here you also use the REL/PC (Log/◄) and MAX/MIN (View/►) buttons to select
the individual items (day, month, year) and change their values with the H/LIGHT (+/COMP) or
RANGE (-) buttons.
7. Hold down the SHIFT/SETUP button for approx. 2 sec to save the settings and exit the SETUP
menu. You will also exit SHIFT mode.
If the date and time are no longer correctly displayed, the button cell battery must
be replaced. The button cell battery has a lifetime of approx. 3 to 5 years. It supplies
power for the date and time, in the event that the DMM battery is empty, or the
battery is removed from the device if it is not used for a longer period of time.
Replacing the button cell battery is described in Chapter "23. Maintenance and
cleaning" (page 78).
11. MEASURING
Do not exceed the maximum permitted input values.
Do not touch any contacts or contact parts if these carry higher voltages than 25 V
ACrms or 35 V DC! This may result in life-threatening danger!
Before starting a measurement, check the connected test leads for damage such
as cuts, cracks, or pinching. Do not use defective test leads! This may result in
life-threatening danger!
Never touch anything beyond the grip area marking on the test prods while
measuring.
Measuring is only possible when the battery and fuse compartment is closed. If
the compartment is open, all measuring sockets are mechanically secured against
insertion.
Only two of the test leads which are needed for measuring may be attached to
the device at one time. For reasons of safety, remove all test leads which are not
needed from the device.
Measurements in circuits >50 V/AC and >75 V/DC are to be performed only by
specialists and trained persons who are familiar with the relative regulations and
the ensuing risks.
If "OL" (for overload) appears on the display, you have exceeded the measuring range.
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a) Turning on the multimeter
The multimeter is turned on and off with the rotary switch (4). Turn the rotary switch to the appropriate
measuring function. To turn it off, move the rotary switch to the "OFF" position. Always turn the
measuring device off when it is not in use.
b) Voltage measurement "V"
Proceed as follows to measure direct voltage "DC" (V
1. Turn on the DMM and select the measuring range
"V ". For small voltages up to a max. 600 mV select
"mV ".
2. Insert the red test lead into the °CHzVΩ measuring socket (7),
the black test lead into the COM measuring socket (8) (Fig. 2).
3. Connect the two test prods with the object to be measured
(battery, circuit, etc.). The red test prod corresponds to the
positive pole, the black test prod to the negative pole.
4. The display indicates the polarity of the measured value
together with the currently measured value.
If a minus sign "-" appears in front of the measured value,
the measured voltage is negative (or the test leads are
reversed). The voltage range "V DC/AC" has an input
resistance of >10 MΩ.
5. After the measurement has been completed, remove the test leads from the object being
measured and turn the DMM off.
Proceed as follows to measure alternating voltage "AC" (V
1. Turn on the DMM and select the measuring range "V
If required you can select the "AC+DC" measuring function. Turn on the DMM and select
the measuring range "V ". Press the SHIFT/SETUP button (3) to switch to the "AC+DC"
measuring function. The display will show " ".
2. Insert the red test lead into the °CHzVΩ measuring socket (7), the black test lead into the COM
measuring socket (8).
3. Connect the two test prods with the object to be measured (generator, circuit, etc.).
4. The measured value will be displayed.
5. After the measurement has been completed, remove the test leads from the object being
measured and turn the DMM off.
):
Fig. 2
):
". The display will show " ".
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