– 5 –
1-4
Apply the test leads to the circuit to be measured. Ensure that the black
lead is connected to the negative side of the circuit and the red lead to
the positive.
1-5
Read the displayed voltage.
1-6
If the minus (-) sign appears the voltage is negative at the point being
measured.
2 AC VOLTAGE MEASUREMENT
!
WARNING: Maximum input is 750V AC (RMS).
2-1
Plug the red test lead into the V
Ω
jack and the black test lead into the
COM jack.
2-2
Set the DC/AC switch so that
AC
is displayed on the LCD.
2-3
Set the range switch to the desired
V
voltage setting. If you are unsure of
the voltage being measured, select the highest range and reduce until a
satisfactory reading is obtained.
2-4
Apply the test leads to the circuit to be measured.
2-5
Read the displayed voltage.
3 DC CURRENT MEASUREMENT
!
WARNING: Remove all power from circuit being tested when check-
ing current. When using the 10A range, do not connect to the circuit
for more than 60 seconds and wait 10 minutes between 10A meas-
urements.
3-1
Plug the red test lead into the mA jack and the black test lead into the COM
jack. If the current being measured is between 400mA and 10A insert the
red test lead into the 10A jack.
3-2
Set the DC/AC switch so that
DC
is displayed on the LCD.
3-3
Set the range switch to the desired
A
current setting. If you are unsure of
the current being measured, select the highest range and reduce until a
satisfactory reading is obtained.
3-4
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.
3-5
Apply power to the circuit.
3-6
Read the displayed current.
3-7
Remove power to the circuit being measured and disconnect test leads.
NOTE: If changing range switch to or from the 10A position first disconnect
power and test leads from the circuit being tested. Repeat the above
steps using the correct input jack and range switch position.
