N7040A/1A/2A Rogowski AC Current Probes User Guide
21
Safety and Regulatory Information
2
WARNING
The voltage ratings are appropriate for intermittent use of the probe as a
test instrument and not for continuous use in a permanent installation.
The ratings are derived from the following standard test:
- N7042A coil (rated for 1.2kV peak) is flash tested for one minute at
3.0kVrms using a 50Hz sine-wave voltage.
- N7040A and N7041A coils (rated for 5kV peak) are flash tested for one
minute at 8kVrms using a 50Hz sine-wave voltage.
CAUTION
Though these probes are capable of handling huge current overloads
without damaging or saturating the probes, it is crucial that the absolute
maximum rated di/dt for the probe is not exceeded. Refer to the
Table on
page 13
to know these ratings.
WARNING
These probes and the oscilloscope must be properly grounded when used.
Making the connection between the oscilloscope and probe using the BNC
cable grounds the BNC input for the probe.
Properly connecting the oscilloscope’s three prong power cord to the power
outlet grounds the oscilloscope. See the oscilloscope user manual for more
information on proper oscilloscope grounding.
CAUTION
Ensure that the signals are within the LF and HF Bandwidth range of the
probes. Refer to the
Table on page 13
to know about the supported
bandwidth range for your probe.