19
18
Application Notes
When measuring the DC current of a
flame controller, follow the steps
under “Measurement Procedure” on
page 18 and then proceed with the
following:
•
Set up the meter for making a
mA measurement.
•
Connect the meter to the flame
controller lead by opening the
circuit and inserting the leads in
series with the circuit as shown
in the picture above.
c. Measuring DC Amps
CAUTION!
Do not attempt to make a current measurement
with the test leads connected in parallel with the
circuit to be tested. Test leads must be connected
in series with the circuit.
WARNING!
Do not attempt to make a current measurement of
circuits with more than 600V present. Instrument
damage and/or personal injury may result.
Instrument set-up:
FUNCTION
BLACK
RED
MINIMUM
MAXIMUM
TEST LEAD
TEST LEAD
READING
READING
umA
COM
mA
0.01mA
400.0mA
A
COM
A
0.001A
10.00A
Measurement Procedure:
1.
Disconnect power to circuit to be measured.
2.
Plug black test lead into the
COM
input jack.
3.
Plug red test lead into the
mA
or
A
input jack
depending on the value of current to be
measured.
4.
Set the rotary switch to the
mA,
or
A
function.
5.
Connect the test leads in series to the
circuit to be measured.
6.
Reconnect power to circuit to be measured.
7.
Read the current on the 183.
