CP6000/CP4000
Current Probe Instructions 5
Exceeding the rated level may result in damage to the probe.
The maximum continuous input range varies according to the frequency of the
current being measured.
If excess current is input, generated heat activates a built-in safety function that
blocks normal output. If this happens, remove the input immediately (remove
the sensor from the conductor being measured or reduce the input current to
zero). Wait until the sensor has had sufficient time to cool before resuming
operation.
Even if the input current does not exceed the rated continuous maximum,
continuous input for an extended period of time may result in activation of the
safety circuit to prevent damage resulting from heating of the sensor.
At high ambient temperatures, the built-in safety circuit may activate at current
input levels below the rated continuous maximum.
Continuous input of current exceeding the rated maximum or repeated activation
of the safety function may result in damage to the unit.
The probe is rated for maximum input under two conditions in addition to the
input maximums shown in the Specifications. These are (1) 30A peak for non-
continuous input and (2) 50A peak for pulse widths 10 µs. (1) indicates an upper
waveform response limit of 30A peak. Use the sensor at RMS current input
levels that are within the rated continuous maximums. (2) Indicates the upper
response limit for a single input pulse.
When opening the sensor head of the probe, be sure to operate with the opening
lever. If an upper core is forced to open when the sensor head is locked, the
open close mechanism can be damaged.
Summary of Contents for CP4000 Series
Page 1: ...Current Probe Instructions ...
Page 2: ......
