Tektronix TCP300A, User Manual

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List of Figures
Figure 1: Typical TCPA300/400 current measurement system................................................ 1
Figure 2: Using the probe cover .................................................................................. 5
Figure 3: Connecting the ground lead ........................................................................... 6
Figure 4: Equipment locations in the travel case ............................................................... 7
Figure 5: Connecting and disconnecting a current probe to the ampli fi er.................................... 9
Figure 6: TCP312A and TCP305A slide operation............................................................ 10
Figure 7: Unlock and open the TCP303 and TCP404XL .....................................................
11
Figure 8: Close and lock the TCP303 and TCP404XL........................................................ 11
Figure 9: Arrow on current probe indicates conventional current fl ow ..................................... 14
Figure 10: The TCPA300 front panel ........................................................................... 17
Figure 11: Measuring two conductors........................................................................... 24
Figure 12: Measuring differential current and nulls ........................................................... 25
Figure 13: Effect of AC or DC coupling on low-frequency signals ......................................... 26
Figure 14: Applying the amp-second product rule ............................................................ 28
Figure 15: Duty cycle calculation ............................................................................... 30
Figure 16: Adding a second conductor.......................................................................... 33
Figure 17: Adding multiple turns ................................................................................ 33
Figure 18: Increasing probe sensitivity ......................................................................... 34
Figure 19: Setup for measuring charging current .............................................................. 36
Figure 20: Charge current waveforms........................................................................... 36
Figure 21: Measuring inductance with a low-impedance source............................................. 37
Figure 22: Linear current vs. time ramp ........................................................................ 38
Figure 23: High-impedance source current ramp .............................................................. 39
Figure 24: Measuring the number of turns in a coil ........................................................... 40
Figure 25: Turns measurement using reference coil........................................................... 40
Figure 26: Error code display .................................................................................... 45
Figure 27: Interpreting the error code display.................................................................. 46
Figure 28: Probe jaw dimensions (nominal).................................................................... 52
Figure 29: Frequency derating-TCP312A ...................................................................... 54
Figure 30: Frequency derating-TCP305A ...................................................................... 54
Figure 31: Frequency derating-TCP303 ........................................................................ 54
Figure 32: Frequency derating-TCP404XL .................................................................... 55
Figure 33: Insertion impedance versus frequency ............................................................. 56
Figure 34: Speci
fi ed operating area of the probes ............................................................. 57
Figure 35: Measuring 750A noncontinuous at 50 °C ambient temperature................................. 58
Figure 36: Measuring 600A noncontinuous at 50 °C ambient temperature................................. 58
Figure 37: Measuring 750A noncontinuous at 23 °C ambient temperature................................. 59
TCPA300/400 Ampli fi ers and TCP300A/400 Series Current Probes User Manual iii