TCP303 and TCP404XL Adjustments
TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Instruction Manual
6-13
TCP303 and TCP404XL Transient Response and Coarse Gain Adjustment
These procedures describe how to adjust and optimize the transient response and
coarse gain adjustment of the TCP303 and TCP404XL probes, using the 1 s, 10
s, and DC gain adjustments. The current source and current loop setups are
different between the two probes, but the connections are similar. Refer to
Figure 6--6 when making equipment connections.
1. If you are using a Tektronix oscilloscope that supports the TEKPROBE
Level 2 Interface, use the TEKPROBE Interface Cable to connect the
amplifier OUTPUT to the oscilloscope input. If you are not using a
Tektronix oscilloscope that supports the TEKPROBE Level 2 Interface, use a
50 Ω BNC cable. If the input impedance of your oscilloscope is 1 MΩ,
connect a 50 Ω feedthrough termination at the oscilloscope input. Do not
connect the termination at the amplifier output.
2. Connect the current probe to the amplifier PROBE INPUT connector.
3. If you are adjusting a TCP303, form a 1-turn currrent loop by connecting the
banana lead to the output connectors of the AC current source.
4. Do not clamp the current probe around any conductor, but make sure the
jaws are locked shut.
Equipment C onnections
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