– 11 –
➔
Apply power to the circuit.
➔
Read the displayed current.
➔
If the numeral value in the display is too small, change the function
switch from mA to µA for a more sensitive measurement range.
➔
If ʻOLʼ appears on the display, it indicates over-range. Immediately remove
test leads from the measuring circuit to avoid any damage to the meter.
b) 326mA or more DC Current Measurement
CAUTION!
Do not exceed 15 seconds when measuring the 20A range and
wait for 30 minutes between each measurement.
➔
Set the function switch to
20A
.
➔
ʻ
A
ʼ appears on the display and the LED above
20A jack turns on.
➔
Plug the red test lead in 20A jack and
black test lead in the
jack.
➔
Remove power from the circuit that
is to be measured. Open up the
circuit and connect the black lead to
the negative side and the red lead
to the positive side of the circuit so
that the test leads are in series with
the load to be measured.
➔
Apply power to the circuit.
➔
Read the displayed current.
➔
If ʻOLʼ appears on the display, it indicates over-range. Immediately
remove test leads from the measuring circuit to avoid any damage to
the meter.
4. AC CURRENT MEASUREMENT
WARNING:
WHEN MEASURING CURRENT REMOVE ALL POWER FROM THE CIRCUIT
BEING TESTED. NEVER APPLY THE TEST LEAD TO THE MEASURING CIRCUIT WHEN CHANG-
ING THE POSITION OF THE FUNCTION SWITCH.
NOTE: The meter will be Auto ranging for this function. If you wish to measure with
Manual range, follow instructions described in Section 9. For manual ranging, start at
the highest range and work down.
COM
TEMP
POWER
CIRCUIT-TEST
DMR-4350
20A
RANGE
µA/mA
HOLD
V/Ω/ /
Ω
/
F°
C°
DCV
ACV
µA
mA
20A
µA
mA
20A
TE
M
P
AC A
MP
S
D
C A
M
PS
VOLTS
O
HM
S
+ DC –
