Current Measurements - PeakTech 1655 Manual De Instrucciones

6.2. Current Measurements

WARNING! This clamp is designed to take current measurements on circuits with a maximum
voltage difference of 1000 V AC/DC between any conductor and ground potential. Using the clamp
for current measurements on circuits above this voltage may cause electric shock, instrument
damage and/or damage to the equipment under test. Before measuring current make certain that
the test leads are removed from the instrument.
The clamp is overload protected up to 1000 V AC/DC for up to 1 Min. Do not take current readings
on circuits where the maximum current potential is not known. Do not exceed the maximum current
that this instrument is designed to measure.
1. Set Function Switch to 400 A / 1500 A.
2. Press the trigger to open the transformer jaws and clamp them around a conductor. Jaws
should be completely closed before taking a reading.
3. Select the desired AC or DC range by pressing MODE-button.
4. DCA Zero: The zero feature removes offset values and improves the accuracy for DC current
measurements.
•
Perform a zero adjustment by selecting 400A/1500A DC with the function selector switch
and without
•
The display shows zero. The offset value is now stored and removed from all
measurements
•
Now perform
Note:
Frequency: If the measurement function 400A/1500A AC is selected, you can read in the
secondary display, the frequency of the measured current value.
5. The most accurate reading will be obtained by keeping the conductor across centre of the
transformer jaws. The reading will be indicated on the display.
a conductor
your current measurement,
in the clamp,
as
-31-
press the
described in points
ZERO button.
–
1 6.