TCP303 and TCP404XL Adjustments
TCP303 and TCP
404XL Adjustments
Each of the fo
llowing adjustment procedures describes h ow to adjust specific
performance characteristics of the TCP303 and TCP404XL. Tolerances that are
specified in these procedures apply to the current probe and do not include test
equipment error.
Required Test Equipment
To perform the adjustment procedures in this section, you will need the test
equipment listed. (See Table 30.) The test equipment must meet or exceed the
specifications listed. You may need to modify the test procedures if you do not
use the re
commended equipment.
Perform these steps before starting these procedures. (See Table 23 on page 45.)
To ensur
e proper completion, read each procedure before starting.
Table 30: Required test equipment
Qty Item Description Recommended example
1
Oscilloscope
100 MHz bandwidth
Tektronix TDS5000
1 High Amplitude Pulse
Generator (TCP404XL only)
Square wave with a rise time <35 ns, ≥5Ainto
50 Ω
AVTECH AVR-3-PW-C-P-TEK2
1
Current Probe Amplifier Tektronix TCPA300 (TCP303) or TCPA400
(TCP404XL)
1
AC Current Source AC A: 0.25% accuracy, 0 to ±5 A, square wave
output, 40 Hz-1 kHz, t
R
<10 ms
Wavetek 9100
1 Digital Multimeter
AC V: ≤ 0.1% accuracy, 5
1
/
2
digit resolution
Keithley 2700
1
Cable TEKPROBE Interface
Tektronix part number 012-1605-00
1
BNC Cable (TCP303 only) 50 Ω, 0.76 m (30 in) long
Tektronix part number 012-0117-00
1
Cable
Banana plugs at ends, 18 inches Tektronix part number 012-0031-00
1 Adapter
BNC to Dual Banana
Tektronix part number 103-0090-00
1 Termination
50 Ω ±0.1%, 0.5 W
Tektronix part number 011-0129-00
1
DC Current Loop
(TCP404XL only)
5 turns 18 AWG coated wire (See page 4, Making DC Current Loops.)
52 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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