Test Products International 126 User Manual
Page 17
17
d. MEASURING AC 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
µA
COM
mAµA
0.1µA
4000µA
mA
COM
mAµA
0.01mA
400mA
10A
COM
A
0.001A
10.00A
Measurement Procedure:
1.
Disconnect power to the circuit to be measured.
2.
Plug the black test lead into the COM input jack.
3.
Plug the red test lead into the mAµA or A input jack
depending on the value of current to be measured..
4.
Set the rotary switch to the µA, mA or 10A function.
5.
Connect test leads in series to circuit to be measured.
6.
Reconnect power to the circuit to be measured.
7.
Read the current on the 126.
16
c. MEASURING DC AMPS
CAUTION!
Do not attempt to make a current measurement with the
test leads connected in parallel with 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
µA
COM
mAµA
0.1µA
4000µA
mA
COM
mAµA
0.01mA
400mA
10A
COM
A
0.001A
10.00A
Measurement
Procedure:
1.
Disconnect power
to circuit to be measured.
2.
Plug the black test lead into the COM input jack.
3.
Plug the red test lead into the mAµA or A input jack
depending on the value of current to be measured.
4.
Set the rotary switch to the µA, mA, or 10A function.
5.
Connect test leads in series to circuit to be measured.
6.
Reconnect power to the circuit to be measured.
7.
Read the current on the 126.
Application
Notes
When measuring the DC current of a
flame controller, follow the steps
under “Measurement Procedure”
below 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.