Chauvin Arnoux Metrix MTX 3292B, Руководство пользователя

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5.3.2. Main measurement
To avoid opening a circuit, we recommend measuring the current with a current clamp, output A or V (Ax
function).
The clamp function includes a precise ratio xxxx.XA/xxxx.XV or XA, making it possible to connect a broad range
of current clamps that you will find in the CHAUVIN ARNOUX catalogue; it is however necessary to verify that the
input/output range of the clamp matches the ranges available on the multimeter.
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 and 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-