2 Test Clips for 4-Wire/Kelvin measurements, for the AE20218 Milliohm Meter

DESCRIPTION:

2 Test Clips/Tweezers (red/black), for 4-Wire measurements with the AE20218 Milliohm Meter and also DMMs and LC(R) meters.

Crocodile clips with gold plated contacts, 70cm leads.

An essential accessory for low value measurements!

With standard 4mm connectors - fits all Multimeters, as well as many LC/LCR-Meters and Impedance Analyzers.

Background: Four Wire (Kelvin) Measurement

The key advantage of four wire measurements is that the separation of current and voltage electrodes eliminates the impedance contribution of the wiring and contact resistances.

The current is supplied via a pair of force connections. These generate a voltage drop across the impedance to be measured. This current also generates a voltage drop across the force wires themselves. To avoid including that in the measurement, a pair of sense connections are made immediately adjacent to the target impedance. The accuracy of the technique comes from the fact that almost no current flows in the sense wires, so the voltage drop is extremely low, compared to conventional two wire measurements.

Specifications:

Max opening: 10 mm

Contact size: (L x W (at the tip) x H): 10 mm / 1.5 mm / 1.5 mm

Connectors: standard 4mm connector

Nonslip surface with good grip

Contacts gold plated

Flexible leads

Color: red / black

Length: 70 cm / 27"