Figure 5-34 SEQUENCE RUN MODE: Connection Prompt. Wayne Kerr 3260B

The Wayne Kerr 3260B is a Precision Magnetics Analyzer that allows for the 2-terminal and 4-terminal (Kelvin) measurement of inductors and transformers. It also offers DC resistance measurement capabilities. The frequency range for the device spans 20Hz to 3MHz, and the drive level can be adjusted between 1mV and 10V rms. The analyzer supports ALC to maintain drive level at the component. In addition, the 3260B has a DC bias current adjustable between 1mA and 1A and provides the option to use external 3265B DC Bias Units to achieve up to 125A DC bias current.

Advanced Operation 5–31

5.11.3 Running a Program.

Once a program is loaded, see section 5.11.1—Selecting a Program, it is run by pressing the

RUN soft key. A message, such as that shown in Figure 5-34, will be displayed to prompt connection of the transformer to the measurement leads or fixture. Once this is done, pressing the Trigger control key will run the program. As the test progresses, messages will be displayed to prompt connection of secondary windings.

Figure 5-34 SEQUENCE RUN MODE: Connection Prompt

If the transformer passes all test steps, PASS will be reported at the end of the test run. Failures are reported on a test-by-test basis, with a failure message, such as that shown in Figure 5-35, reported in each case. When a failure occurs, various options are available. a) Select the RETRY soft key to rerun the failed test step. b) Press the Trigger control key to continue the sequence program. c) Select the NEXT TRANSFORMER soft key to discard any remaining test steps and allow connection of the next transformer to be tested.

Key Features

2/4 terminal measurement
Frequency range: 20Hz to 3MHz
DC bias current up to 125A
Automatic level control (ALC)
Telecom function
In-circuit measurements
Measurement of very small capacitors/inductors
Measurement of iron-cored/ferrite inductors
Measurement of transformers
BINNING MODE

Frequently Answers and Questions

What is the frequency range of the 3260B?

The frequency range of the 3260B is 20Hz to 3MHz.

What types of components can be measured with the 3260B?

The 3260B can measure inductors and transformers using 2-terminal or 4-terminal (Kelvin) connections.

What is the maximum DC bias current that can be supplied by the 3260B?

The 3260B can provide up to 125A DC bias current when using an external 3265B DC Bias Unit.

What are some of the advanced measurement modes available on the 3260B?

The 3260B offers advanced measurement modes such as BINNING MODE, SEQUENCE MODE, MULTI FREQ MODE, GRAPH MODE, RESONANCE MODE, and DEMAG MODE.

What is the purpose of the Telecom function on the 3260B?

The Telecom function allows for the measurement of insertion loss and return loss of line matching transformers, along with the ability to select damped network components and a blocking capacitor, if needed.