Figure 5-9 Active Connection for 2-TERM INSULATION MODE (Pri–GND). 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.

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Advanced Operation

INSTRUMENT

Brown

Primary BNC Connectors

Red Orange Yellow

LEADS

Brown

Secondary BNC Connectors

Red Orange Yellow

not used

Red

Drive Low

not used not used not used not used not used not used

Leads marked not used may be left connected to the analyzer but are not used for the insulation test.

Connect the RED lead to the transformer primary, and the GREEN CLIP LEAD to the transformer metal case or shell.

Figure 5-9 Active Connection for 2-TERM INSULATION MODE (Pri–GND)

INSTRUMENT

Brown

Primary BNC Connectors

Red Orange Yellow

LEADS

Brown

Secondary BNC Connectors

Red Orange Yellow

Brown

Sense Low

not used not used not used not used not used not used not used

Leads marked not used may be left connected to the analyzer but are not used for the insulation test.

Connect the BROWN lead to the transformer primary, and the GREEN CLIP LEAD to the transformer metal case or shell.

Figure 5-10 Active Connection for 4-TERM INSULATION MODE (Pri–GND)

INSTRUMENT

Brown

Primary BNC Connectors

Red Orange Yellow

LEADS

Brown

Secondary BNC Connectors

Red Orange Yellow

not used not used not used not used not used

Red

Drive Low

not used not used

Leads marked not used may be left connected to the analyzer but are not used for the insulation test.

Connect the RED lead to the transformer secondary, and the GREEN CLIP LEAD to the transformer metal case or shell.

Figure 5-11 Active Connection for 2-TERM INSULATION MODE (Sec–GND)

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.