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

TA467 Insulation Tester User's Guide

AC voltage measurements (frequency, duty cycle)

4.2.2.
Risk of electrocution! The probe tips may not be long enough to reach the live parts inside some
240 V outlets for appliances, because the contacts are recessed deep in the outlets. As a result,
the reading may show 0 volts when the outlet actually has a voltage on it. Make sure that the
probe tips are touching the metal contacts inside the outlet before you assume that there is no
voltage present.
Do not measure AC voltages if a motor on the circuit is being switched ON or OFF. Large voltage
surges may occur which can damage the unit.
1. Set the function switch to the V AC position
2. Insert the black test lead into the COM jack (negative). Insert the
red test lead into the V jack (positive).
3. 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.
4. Read the voltage in the main display and read the frequency in the
right auxiliary display.
5. Press and hold the MODE button for two seconds to switch to Hz.
6. Read the frequency in the main display.
7. Press the MODE again to read the % of duty cycle in the main
display.
8. Press EXIT
9. Press and hold the AC + DC button for two seconds to switch to
AC + DC.
10. Test AC and DC TRUE RMS.
6 Copyright © 2020 Pico Technology Ltd. All rights reserved.
WARNING
CAUTION
DO341-1