User Manual

Probing Principles
Maximum Current Limits
Current p robes h ave three maximum cu rrent ratings: pulsed, continuous, and Ampere-second product. Exceeding any of these
ratings can saturate the probe core, which magnetizes the core and causes measurement errors. R efer to the specifications for the
maximum current ratings of th e probe. (See Table 2 on page 45.)
Maximum Pulsed Current (I
maxP
)isthe
maximum peak value of pulsed current the
probe can accurately measure, regardless
of h ow sho rt (within bandwidth limitations)
the pulse duration is.
Maximum C ontinuous Cu rrent (I
maxC
)isthe
maximum current that can be continuously
measured at DC or at a specified AC
frequency. The maximum continuous
current value is derated with frequency;
as the freque ncy increases, the maximum
continuous current rating decreases.
TCP0150 C urren t Probe Instruction Manual 39