Operation
5
Figure 1
Control and Connector Identification
Zero-Adjust Knob.
Use the zero adjust knob to eliminate the probe’s
offset before performing a measurement.
Battery Power Indicator.
To ensure proper readings with your
current probe, be sure that the green battery indicator is lit during
measurement. If not, replace the 9V battery as described in
“To
Install the Battery”
on page 6.
Peak Overload (OL) Indicator.
If the red Peak Overload indicator
illuminates during measurement, this indicates that the peak value
exceeds the instrument response level and that the output is
distorted. Use the range selection switch to change the probe to a
higher range, if possible.
Range Selection Switch.
Use the range selection switch to turn the
probe
OFF
and to select from two ranges:
10 mV/A
and
100 mV/A
.
WARNING
It is possible to change the current probe ‘s range without removing the probe
from the current carrying conductor, but never exceed the permissible peak
ratings of 1000 mV peak or 2000 mV peak-to-peak maximum. The peak ratings
by range are: 10A peak on the 100 mV/A range, 100A peak on the 10 mV/A
range.