Teledyne LeCroy CP150 - Manual (Page 10)

CP150 Current Probe
4 922175-00 Rev A
Operation
Precautions
The sensor head is a precision assembly consisting of a molded component with a ferrite core and a Hall
effect element. It may be damaged if subjected to sudden changes in temperature, mechanical strain or
shock.
The mating surfaces of the sensor are precision ground and should be treated with care. If there is any
type of dust or dirt on the mating surfaces of the sensor head, measurements may be impaired.
Accurate measurements may not be possible in locations subject to strong magnetic fields such as
transformers and high-current conductors, or in locations subject to strong external electric fields.
Connecting the Probe to the Test Instrument
The CP150 probe has been designed for use with the WaveRunner, LC, and WavePro series Teledyne
Lecroy oscilloscopes equipped with the ProBus interface. Attach the probe output connector to the
oscilloscope input connector. The oscilloscope will recognize the probe, set the oscilloscope input
termination to 1 MΩ and activate the probe control functions in the user interface.
Connecting the Probe to the Test Circuit
The CP150 has been designed with a movable split core, eliminating the need to break the conductor for
the core to slip around the conductor.
To connect:
1. Pull the slider, so that the clamp opens.
2. Align the sensor so that the current direction indicator corresponds to the direction of current
flow in the conductor.
3. Press the probe jaws closed around the conductor until jaws click shut.
4. Close the slider on the sensor head until the "UNLOCK’ indication disappears and the "LOCK"
indication appears.
NOTE: Never use this probe on bare conductors. The core and shield are grounded and any voltage
applied to the conductor may cause damage the probe or the circuit under test.