MD 9250 Clamp Meter Series
Operation
8
4 Operation
CAUTION: Before and after hazardous voltage measurements, test the voltage
function on a known source such as line voltage to determine proper meter
functioning.
AutoCheck
TM
mode
This innovative
AutoCheck
TM
feature automatically selects measurement function of
ACV
Hz
,
DCV
, or
Resistance (
)
based on the input via test leads.
●With no input, the meter displays “
Auto
” when it is ready.
●With no voltage signal but a resistance below 10M
(nominal) is present, the meter
displays the resista
nce value. When the resistance is below the “Audible Threshold”,
the meter further gives a continuity beep tone.
●When a signal above the voltage threshold of 1.5V DC or AC up to the rated 1000V
is present, the meter displays the voltage value in appropriate DCV or ACV,
whichever larger in peak magnitude.
Note:
*Range-Lock and Function-Lock Feature: When a measurement reading is being
displayed in AutoCheck
TM
mode, press the RANGE or SELECT button momentarily 1
time can lock the range or function it was in. Press the button momentarily repeatedly to
step through the ranges or functions.
*As Hazardous-Alert: When making resistance measurements in AutoCheck
TM
mode,
an unexpected display of voltage readings alerts you that the object under test is being
energized.
