MD 9240 True RMS Power Clamp Meter
Operation
7
4 Operation
AutoVA
TM
function
Set the slide-switch function-selector to the
position.
With no input,
the meter displays “Auto” when it is ready.
With no ACA current input via the jaws but a voltage signal above the nominal
threshold of DC 2.4V or AC 30V (40Hz ~ 500Hz) up to the rated 600V is present
on V-COM terminals, the meter displays the voltage value in appropriate DC or
AC, whichever larger in peak magnitude. LCD annunciator “dc” or “
” turns on
respectively.
On the contrary, with no voltage signal present on V-COM terminals but a ACA
current signal above the nominal threshold of AC 1A (40Hz ~ 500Hz) up to the
rated 1000A is input via the jaws, the meter displays the ACA current value. LCD
annunciator
“
” turns on accordingly.
The Auto-VA feature stays at the auto-selected function as long as its signal
remains above the specified threshold. Press SELECT button momentarily to
manually select thru the functions ACA, ACV, DCV and then goes back to Auto-
VA.
