TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Instruction Manual
6-3
TCPA300 and TCPA400 Amplifier Adjustments
This section covers the adjustments for the TCPA300 and TCPA400 Current
Probe Amplifiers. Refer to the list of equipment required in Table 6--2.
Required Test Equipment
The adjustment procedures require the test equipment listed in Table 6--2. The
test equipment must meet or exceed the specifications listed. You may need to
modify the test procedures if you do not use the recommended equipment.
Table 6- 2: Required test equipment
Qty Item Description
Recommended
equipment
1 Digital Multimeter 0.20%, 3
1
/
2
digit resolution, range ±50 mV Keithley 2700
1 Current Source 0.1%, 0 to ±100 mA Fluke 5100A or HP 6612C
1 Termination 50 Ω, ±0.1%, 0.5 W Tekt ronix part number 011-0129-00
2 BNC Cables 50 Ω, 1.05 m (42 in) long Tektronix part number 012-0117-00
1 Cables TEKPROBE Interface Tektronix part number 012-1605-00
2 Adapters BNC-to-Dual Banana Adapters Tektronix part number 103-0090-00
1 Calibration Adapt er TCPA Calibration Adapter Tektronix part number 174-4765-00
1 Adjustment tool 1/8-inch flat -blade Tektronix part number 003-0675-01
Accessing the Adjustments
To gain access to the amplifier adjustments, you must remove the outer case.
There are access ports in the right-side internal cover, but you can also remove
the internal cover to get a better view of the adjustments. Refer to Disassembly
on page 7--3. After completing the disassembly procedure, power on the
amplifier and test equipment and let them warm up for at least 20 minutes.
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