Ac Current Measurements; Ac/Dc Voltage Measurements - Extech Instruments EX622 User Manual

AC Current Measurements

WARNING: Disconnect the test leads before making clamp measurements.
1. Rotate the Function switch to the 400A
position
2. Press the trigger to open jaw. Fully enclose
only one conductor.
3. Read the current value in the display.
4. If the value is less than 40A, rotate the
function switch to the 40A
improve resolution.

AC/DC Voltage Measurements

CAUTION: Do not measure voltages if a motor on the circuit is being switched ON or OFF. Large
voltage surges may occur that can damage the meter.
1. Slide the input shutter to the up position.
2. Rotate the function switch to the V position.
3. Press the MODE button to select AC or DC Voltage.
4. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.
5. Touch the black test probe tip to the negative side of the circuit.
Touch the red test probe tip to the positive side of the circuit.
6. Read the voltage value in the display.
Frequency
When ACA is selected, the measured frequency can be viewed in the
lower display.
www.ponpe.com
AC
position to
AC
6 EX622-en-GB_v2.8 4/15
contact:
sale@ponpe.com