– 8 –
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
2. AC VOLTAGE MEASUREMENT
WARNING
: MAXIMUM INPUT IS 700V AC. USE EXTREME CAUTION WHEN WORKING
WITH HIGH VOLTAGES. NEVER APPLY TEST LEADS TO THE MEASURING CIRCUIT WHEN
CHANGING THE POSITION OF THE FUNCTION SWITCH. IF YOU ARE UNSURE OF THE VOLTAGE
BEING MEASURED, SELECT THE HIGHEST RANGE AND REDUCE UNTIL A SATISFACTORY
READING IS OBTAINED.
➔
Set the function switch to 700 on the
AC VOLTS
scale.
➔
The LED next to V/ /F/ / jack will turn on.
➔
Plug the red test lead in V/ /F/ /
jack and the black test lead in
jack.
➔
Apply the test leads to the circuit
to be measured.
➔
Read the displayed voltage.
➔
If the reading displayed does
not have a sufficient number of
digits, i.e. 002 instead of 2.1011,
set the function switch to the next
lower range. Repeat until you have
maximum digits possible 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.
The input voltage should not exceed the measurement capability of this
meter.
3. DC 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. IF YOU ARE UNSURE OF THE CURRENT
BEING MEASURED, SELECT THE HIGHEST RANGE AND REDUCE UNTIL A SATISFACTORY
READING IS OBTAINED.
a) Less than 200mA DC Current Measurement
➔
Set the function switch to 200m on the
DC AMPS
scale.
➔
The LED next to TEMP/mA jack will turn on.
