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The accuracy of this "clamp" function depends on the accuracy of the clamp and of the range used on the multimeter.
5.3.3.
Procedure
1.
Activate the clamp function and, depending on the type of clamp connected,
double-press "Clamp" or use the setup/clamp menu specify the coupling.
2.
Select the type of Measurement clamp output (V, A)
3.
Define ratio A displayed on the clamp Val1/Val2 or xxxx.Xa/xxxx.Xv
(by default 1A/1V) to be incorporated (Ok to Validate, or Cancel).
4.
Define the physical unit to be displayed (default: A): 3 programmable fields
Frequency measurement
5.4.
5.4.1.
Connecting the multimeter
5.4.2.
Main measurement
Select the Hz function to measure the frequency of the voltage
Measurement of the period is accessible as a secondary measurement
If the MLI filter is activated, the frequency that can be measured remains within the pass band limit of the 300Hz
filter.
Below 10Hz, or if the signal is too weak, the value is forced to "--"
Possibility of selection of the range by "Range+ or
–" or of the manual freq. F <200kHz (default) or F >200kHz
5.4.3.
Secondary measurements
Pressing
gives access to the measurements of the main function:
1.
DUTY CYCLE :duty cycle DCY+ or DCY-
2.
CNT+ et CNT- :counting of pulses
3.
PW+ et PW- :pulse width
-
the mathematical function associated:
MATH
-
the period, the positive duty cycle and the mathematical function:
_MATH
-
the period, the negative duty cycle and the mathematical function:
PER_DCY-_MATH
-
the positive pulse width, the counting of positive pulses, its reference and the mathematical function:
PW+_CNT+_MATH
-
the negative pulse width, the counting of negative pulses, its reference and the mathematical function:
PW-_CNT-_MATH
