TCP303 and TCP404XL Adjustments
DC Gain Adjust
ment
This procedure a djusts the DC gain accuracy of the TCP303 and TCP404XL
probes.
Equipment Co
nnections
1. Connect the amplifier OUTPUT to the DMM input using a BNC-to-Dual
Banana connector, 50 Ω BNC cable, and a 50 Ω precision feedthrough
termination. 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, connect the banana lead cable to the output
connectors of the AC current source. If you are a djusting a TCP404XL,
connect the 5-turn DC current loop to the current source as shown.
4. Do not clamp the current probe around any conductor, but make sure the
slide is locked.
Figure 19: DC gain accuracy adjustment setup
58 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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