Tektronix TCP0030, Instruction Manual

Page: 56 / 102

Probing Principles
Maximum Allowable Pulse Amplitude
To determine the maximum allowable pulse
amplitude do the following:
1. Measure the pulse width at the 50% points.
2. Divide the Ampere-second (or
Ampere-microsecond) speci
fi cation
for the range setting of the TCP0030 probe
by the pulse width.
The quotient is the maximum allowable
pulse amplitude; the peak amplitude of the
measured pulse must be less than this
value.
For example, the TCP0030 probe has a
maximum Ampere-second product of 500 A-ms
in the 30 A range setting. If a pulse measured
with the probe has a width of 11 ms, the
maximum allowable peak current would be
500 A-ms divided by 11 ms, or 45.5 A.
38 TCP0030 Current Probe Instruction Manual