PeakTech 4250 Manual Del Usuario página 17

P 4300:
1. Insert black banana plug into the COM-jack and the red banana
plug into the V- jack of any multimeter with a minimum input
impedance of 1 M.
2. Set the power switch from "OFF" to the desired range, 200 A or
1000 A position. The green LED will light to indicate that the
clamp is switched on.
3. For current measurement below 200 amperes, set the unit to 200
A range and set the multimeter to 200 mV AC range for AC
current measurements or 200 mV DC for DC current
measurements. The reading in mV corresponds directly to A (for
example 100mV ≙ 100A).
4. For current measurements above 200 amperes, set the unit to
1000 A range and set the multimeter range to 2 V AC or DC,
depending on whether measuring AC or DC current. The reading
is now amperes x 1000.
5. When perform DC current measurement, always push the zero
adjustment button on the clamp until the multimeter reads zero.
6. Clamp the jaws around the current-carrying conductor and
interpret the reading according to step 3 or 4 above.
Application notes
1. In the case of DC current, the output is positive when the current
flows from the upside (marking "+" textured on the jaws) to the
underside of the clamp. The red banana plug is positive.
2. In the case of DC current measurement, a hysteresis effect can
occur so that it is impossible to zero the clamp properly. To
eliminate this effect, open and close the jaws several times and
push zero adjustment button.
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