Download Functional description (cont`d)

Functional description
Functional description (cont’d)
Access to secondary
functions (cont’d)
MTX 3283B
Upon activation of dB measurements, the value measured is taken as voltage
reference (V ref).
The calculation is as follows:
20 log10 (V measured / V ref).

The voltage reference (V ref) cannot be modified.
The MATH function is displayed when its parameters allow it (see MATH Func.).
For the dBm and resistive power measurements, see Measurement menu for
the adjustment of related reference resistances (dBm REF, W REF) and to
know the calculation formulas.
MTX 3282B MTX
3283B
The calculation of power V x A (VA) requests a 3rd connection to the A input
(connected to the same circuit) in order to measure simultaneously: DC voltage
(main display), DC power (display 3, measurement always in AC+DC).

The link on the COM input must be short and have a large diameter in
order to limit the voltage drop which influences the Volt measurement.
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V COM A
26
100,000-count Graphical Multimeters