Tektronix TCP300 Series, User Manual, Page: 9 / 80

List of Figures
Figure 1: Typical TCPA300/400 current measurement system................................................ 1
Figure 2: Using the probe covers ................................................................................. 5
Figure 3: Equipment locations in the travel case ............................................................... 6
Figure 4: Connecting and disconnecting a current probe to the ampli fi er.................................... 8
Figure 5: TCP312 and TCP305 slide operation ................................................................. 9
Figure 6: Unlock and open the TCP303 and TCP404XL ..................................................... 10
Figure 7: Close and lock the TCP303 and TCP404XL........................................................ 10
Figure 8: Current probe polarity ................................................................................. 13
Figure 9: The TCPA300 front panel............................................................................. 15
Figure 10: Measuring two conductors .......................................................................... 22
Figure 11: Measuring differential current and nulls ........................................................... 23
Figure 12: Effect of AC or DC coupling on low-frequency signals ......................................... 24
Figure 13: Applying the amp-second product rule ............................................................ 26
Figure 14: Duty cycle calculation ............................................................................... 28
Figure 15: Adding a second conductor.......................................................................... 30
Figure 16: Adding multiple turns ................................................................................ 31
Figure 17: Increasing probe sensitivity ......................................................................... 32
Figure 18: Setup for measuring charging current .............................................................. 34
Figure 19: Charge current waveforms........................................................................... 34
Figure 20: Measuring inductance with a low-impedance source............................................. 35
Figure 21: Linear current vs. time ramp ........................................................................ 36
Figure 22: High-impedance source current ramp .............................................................. 37
Figure 23: Measuring the number of turns in a coil ........................................................... 38
Figure 24: Turns measurement using reference coil........................................................... 38
Figure 25: Error code display .................................................................................... 43
Figure 26: Interpreting the error code display.................................................................. 44
Figure 27: Probe jaw dimensions (nominal).................................................................... 50
Figure 28: Frequency derating-TCP312 ........................................................................ 52
Figure 29: Frequency derating-TCP305 ........................................................................ 52
Figure 30: Frequency derating-TCP303 ........................................................................ 52
Figure 31: Frequency derating-TCP404XL .................................................................... 53
Figure 32: Insertion impedance versus frequency ............................................................. 54
Figure 33: Speci
fi ed operating area of the probes ............................................................. 55
Figure 34: Measuring 750A noncontinuous at 50 °C ambient temperature................................. 56
Figure 35: Measuring 600A noncontinuous at 50 °C ambient temperature................................. 56
Figure 36: Measuring 750A noncontinuous at 23 °C ambient temperature................................. 57
TCPA300/400 Ampli fi ers and TCP300/400 Series Current Probes User Manual iii