Ac Current Measurements (Frequency, Duty Cycle) - PICO TA467 User Manual

AC current measurements (frequency, duty cycle)

4.2.6.
Do not capture 20 A current measurements for more than 30 seconds. Exceeding 30 seconds
may cause damage to the unit and/or to the test leads.
1. Insert the black test lead into the COM jack (negative).
2. Set the function switch to the required position and connect
the red test lead:
a. For current measurements up to 4000 µA AC: Set the
function switch to the µA position and insert the red test
lead into the µA mA jack.
b. For current measurements up to 400 mA AC: Set the
function switch to the mA position and insert the red test
lead into the µA mA jack.
c. For current measurements up to 20 A AC: Set the function
switch to the 10A position and insert the red test lead into
the 10A jack.
3. Press the MODE button to switch to AC on the display.
4. Remove power from the circuit under test.
5. Open up the circuit at the point where you want to measure
the current.
6. Touch the black test probe tip to the neutral side of the circuit
and touch the red test probe tip to the hot side of the circuit.
7. Apply power to the circuit.
8. Read the current in the display. In the 10 A AC range, the right
auxiliary display will show the frequency.
9. Press and hold the MODE button to switch to Hz.
10. Read the frequency in the display.
11. Press the MODE button again to indicate %.
12. Read the % duty cycle in the display.
13. Press the EXIT button to return to current measurement
14. Press the MODE button to select AC.
15. Press and hold the AC + DC button for two seconds to switch
to AC + DC.
16. Test AC and DC TRUE RMS.
DO341-1 Copyright © 2020 Pico Technology Ltd. All rights reserved.
TA466 Voltage Detector User's Guide
CAUTION
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