TCP303 and TCP404XL Performance Verification
Equipment S ettings
Make or verify t
he equipment settings in the table below. (See Table 21.)
Table 21: Equipment settings for bandwidth
Oscilloscope
Vertical input impedance
50 Ω
Time base
200 ns/division
Record length 500
Coupling DC
Offset 0 V (mid-scale)
Trigger type Edge
Trigger mode Auto
Trigger position
50%
Acquisition mode Average
Number of waveforms to average
8
Measurement type Peak-to-Peak
Leveled sine wave ge
nerator
Frequency 3 MHz
Amplitude 3 V
p-p
TCPA300
Coupling DC
Range
5A/V
Procedure
1. Do not clamp the current probe around any conductor, but make sure the
jaws a
re locked shut.
2. Press the amplifier PROBE DEGAUSS AUTOBALANCE button. Wait for
the degauss/autobalance routine to complete before proceeding. The routine
is complete when the indicator light turns green.
3. Clamp the current probe around the HF current loop.
4. Enable the output of the leveled sinewave generator.
5. Verify the output level is what is listed for the probe. (See Table 22 on
page 41.)
6. Using the peak-peak measurement capability of the oscilloscope, measure and
record the peak-peak reading as M
1
. (See Table 22 on page 41.)
7. Set the oscilloscope time base to 40 or 50 ns/division. Increase the signal
generator frequency to the warranted bandwidth. Refer to the test record
for the warranted bandwidth.
8. Using the peak-peak measurement capability of the oscilloscope, measure and
record the peak-peak reading as M
2
.
40 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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