Télécharger Imprimer la page

VOLTCRAFT 1890138 Mode D'emploi page 33

Publicité

Les langues disponibles

Les langues disponibles

h) Measuring capacitance
Make sure that all circuit parts, switches and components, and other objects of
measurement are disconnected from the voltage and discharged at all times.
Always observe the polarity for electrolytic capacitors.
1. Turn on the DMM and select the measurement range "
2. Insert the red test lead in the °CHzVΩ measuring socket (7),
the black test lead in the COM measuring socket (8) (Fig. 8).
3. The unit "nF" will appear on the display.
Due to the sensitivity of the measuring input, it is possible
that a value is displayed when the test leads are "open".
Pressing the REL/PC (Log/◄) button (10c) will set the
display to "0". The base value (Rel difference) is displayed
next to the delta symbol
. The autorange function is
deactivated.
4. Now connect the two test prods (red = plus pole/black = minus
pole) with the object to be measured (capacitor). After a short
while the display shows the capacitance. Wait until the display
has stabilised. For capacitances >400 μF this may take a few
seconds.
5. If "OL" (for overload) appears on the display, you have exceeded the measuring range.
6. After the measurement has been completed, remove the test leads from the object being
measured and turn the DMM off.
64
".
Fig. 8
i) Measuring temperature
During the temperature measurement, expose only the temperature sensor to the
temperature to be measured. The operating temperature of the measuring device
must not be above or below the permissible range, because this can result in
measuring errors.
The contact temperature probe may only be used on voltage-free surfaces.
All K-type thermosensors can be used to measure temperature. The temperature is displayed in °C
and °F. The temperature probe included in delivery is designed for measurements between -40 to
+400 °C. Optional sensors can be used for the complete measuring range (-40 to +1000 °C).
For measuring temperatures, proceed as follows:
1. Turn on the DMM and select the measurement range "°C".
2. Press the SHIFT/SETUP button (3) to switch to a display in °F.
3. Insert the thermosensor with the correct polarity with the plus
pole in the °CHzVΩ measuring socket (7) and the minus pole
in the COM measuring socket (8) (Fig. 9).
4. The temperature appears in the main display in °C or °F,
depending on the pressing of the SHIFT/SETUP button.
5. If "OL." appears in the display, the measuring range (-40 to
+1000 °C) has been exceeded.
6. After the measurement has been completed, remove the
sensor and turn the DMM off.
When the measuring input (sockets: °CHzVΩ – COM) is bridged, the device temperature of
the DMM is displayed. The temperature adjustment to the environment is very slow due to the
sealed housing.
Fig. 9
65

Publicité

loading

Ce manuel est également adapté pour:

Vc890