Tektronix TCP300A, User Manual, Page: 40 / 82

Control Summary
For example, the typical accuracy of the TCP312A probe on the 1 A/V range is
1%. If you want to measure a 3 Ap-p, 1 kHz square wave and need increased
accuracy (better than 0.25% is attainable),
fi rst adjust the TCP312A on the 1 A/V
range setting using a calibrated 3 Ap-p, 1 kHz square wave source. Then, attach
the probe to your circuit and take your measurement. Remember, altering the DC
Gain Adjustment may cause the probe to not meet the warranted DC Accuracy
speci
fi cation.
GPIB Operation The TCPA300 and TCPA400 Current Probe Ampli fi ers do not have direct GPIB
connections. However, you can use a computer to control the oscilloscope that the
ampli
fi er is connected to, enabling you to change the time and scale factors of
your current measurements over the oscilloscope GPIB bus.
Refer to your oscilloscope manual for instructions on using the GPIB bus.
22 TCPA300/400 Ampli fi ers and TCP300A/400 Series Current Probes User Manual