Ac Current Measurements; Dc Current Measurements - SEFRAM MW3105 Manual

3.5 AC CURRENT MEASUREMENTS

Never try to measure currents where the maximum voltage between any conductor and ground exceeds 500 V to avoid
personal harm and/or damage to the meter.
1. Remove test leads from meter.
2. Set function selector to A ~ for AC current measurements and choose range. If range is unknown, start with the highest
range, 1000A.
3. Press trigger on left side of meter to open jaws. Now, damp around a single conductor so it's centered and perpendicular in
the jaws as shown in following illustration. Release trigger to damp jaws and make sure they are fully dosed.
NOTE : Position jaws around only one conductor centered and perpendicular to jaws. If jaws are placed around two or more
current carrying conductors reading will be false. For example, if damped around the line cord of an AC appliance, currents
flowing through the cord tend to cancel each other giving a false reading.
4. Read current level at display. If needed for better resolution, select a lower range.

3.6 DC CURRENT MEASUREMENTS

1. Set function selector to A = for DC current measurements and select range. lf range is unknown, start with the highest range,
1000A.
2. There may be a residual reading on the meter. Press the  ZERO button to zero the meter.
3. Clamp jaws around the conductor and read current level from display.
CAUTION
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