MA200 Datasheet, PDF (6/8 Pages) Extech Instruments Corporation. – 400A AC Clamp Meter

AC Current Measurements
WARNING: Ensure that the test leads are disconnected from
the meter before making current clamp measurements.
1. Set the Function switch to the 400 or 200A range. If the
range of the measured is not known, select the higher range
first then move to the lower range if necessary.
2. Press the trigger to open jaw. Fully enclose one conductor to
be measured.
3. The clamp meter LCD will display the reading.
Resistance Measurements
1. Set the function switch to the Ω •))) position.
2. Insert the black test lead banana plug into the negative
(COM) jack
Insert the red test lead banana plug into the positive (VΩ)
jack.
3. Touch the test probe tips across the circuit or part under
test. It is best to disconnect one side of the part under test
so the rest of the circuit will not interfere with the
resistance reading.
4. Read the resistance in the display. The display will
indicate the proper decimal point and value.
Continuity Check
1. Set the function switch to the Ω •))) position.
2. Push the mode button to indicate •))) on the display.
3. Insert the black lead banana plug into the negative
(COM) jack
Insert the red test lead banana plug into the positive
(VΩ) jack.
4. Touch the test probe tips to the circuit or wire you
wish to check.
5. If the resistance is less than approximately 30Ω, the
audible signal will sound. If the circuit is open, the
display will indicate “OL.”.
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MA200 Version 1.4 06/06