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11.10 Pulse width measurement
Pulse width measurement enables measuring of the positive hal-wave
of a measuring signal� The ratio of the positive halfwave to the total
signal is displayed� For symmetrical signals (e�g� sinus), the positive
and negative half-waves are the same length� The display shows ap-
prox� 50%�
1� Turn the DMM on and select measuring function "Hz"�
2� Plug the red measuring lead into the V measuring socket (9) and
the black measuring lead into the COM measuring socket (8)�
3� Press "MODE" button to switch measurement functions� The sym-
bol "%" appears in the display� Pressing this button again takes
you to the first measuring function etc.
4� Now connect the two measuring prods to the object to be meas-
ured (generator, signal, etc�)�
5� The currently measured value is indicated on the display
6� After measuring, remove the measuring lines from the measured
object and turn the DMM off�
11.11 Room temperature and humidity measurement
The DMM enables measuring the room temperature and relative humidity via firmly installed sensors. The two meas-
ured values are permanently displayed in the upper display area in measuring operation�
Important:
– The sensors are located inside the device and react to changes of the measured value with delays� Wait
for at least 30 minutes until the device has adjusted to the ambience conditions� We recommend waiting for
approx� 2 hours to ensure precise measured values�
Proceed as follows for the measurement:
1
1� The measuring leads are not required�
2� Turn on the DMM and select any measuring function�
3� In the upper left, the display shows the relative humidity in "%RH"
and in the upper right the room temperature in "°C"�
4� Wait until the displayed value has stabilised� This may take up
to 2 hours�
5� Switch off DMM after measuring�
46
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