– 9 –
➔
Plug the red test lead in TEMP/mA jack and the
black test lead in
jack.
➔
Remove power from the circuit that is to be
measured. Open up the circuit and
connect the black lead to the nega-
tive 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 the numeral value in the display
is too small, change the function
switch to next lower range. Repeat
until you have maximum digits pos-
sible without displaying ʻIʼ.
➔
If ʻIʼ appears on the display, it indicates over-range. Immediately remove
test leads from the measuring circuit to avoid any damage to the meter.
b) 200mA 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 20 on the
DC Amps
scale.
➔
The LED above 20A jack will turn on.
➔
Plug the red test lead in 20A jack and
the black test lead in
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.
CAP
CIRCUIT-TEST
DMR-4200
20A
TEMP
mA
HOLD
POWER
CAT II 1000V
V/Ω/F/ /
COM
D
C
V
O
LT
S
OHMS
Ω
C
A
PA
C
IT
A
N
CE
AC
V
O
LT
S
AC AMPS
D
C A
M
PS
TEMP F
REQ
+ DC –
CAP
CIRCUIT-TEST
DMR-4200
20A
TEMP
mA
HOLD
POWER
CAT II 1000V
V/Ω/F/ /
COM
D
C
V
O
LT
S
OHMS
Ω
C
A
PA
C
IT
A
N
CE
AC
V
O
LT
S
AC AMPS
D
C A
M
PS
TEMP F
REQ
+ DC –
