Functional Description
35
4.2 Multimeter mode
4.2.1 Keys/keyboard active in Multimeter mode
The
ScopiX
has a "Multimeter" function with 8000 display points. It has as many independent multimeters as there are
channels in the "Oscilloscope" mode (2 or 4), with the same function as in the Oscilloscope mode:
Probix
.
Coupling
:
If a channel is activated and selected, pressing this key changes the input coupling of the
channel. With successive presses, the coupling runs through:
AC
AC <5kHz
AC <625
AC+DC
AC+DC <5kHz
AC+DC <625Hz
DC.
Display of the input coupling
Adjustment of the coupling is impossible in some modes: Ohmmeter, Capacitance meter,
Continuity, Test of component, Wattmeter.
Modification of the coupling (AC, DC, AC + DC) in amplitude measurement
AC:
AC voltage measurement
DC:
DC voltage measurement
AC + DC:
AC voltage measurement with a DC component
Limitation of bandwidth
If the channel measures an AC or AC + DC voltage, it is possible to filter the signal with a low-
pass analog filter having a cutoff frequency of 5kHz.
The other filter proposed is a digital filter at 625Hz; if this filter is chosen, the 5kHz analog filter
is also activated.
Characteristics of the digital filter
Low-pass filter
Cutoff frequency .......................... 625Hz
Order....................................................................... 94
Bandwidth ripple..... 0.5dB
Transition band ................................. 0.02
Stopband attenuation ................. 50.0dB
Manual change of measurement range.
De-activation of Autorange and change to manual mode.
The Autorange function is active as default; the change to manual range is effected by
pressing this key.
Содержание OX9302-BUS
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