KELVIN DOUBLE BRIDE MEASURE

Measuring a small value of resistance like 1 ohm, we can either use an ohmmeter or a Wheatstone bridge, but in a case where the resistance value is less than 1 ohm, it will be difficult to measure. Hence, we shunt a lower value of the unknown resistors, 2 precision resistors, and a high current ammeter to form four-terminal resistors, where the current flows through the circuit, then the voltage drop across the resistors can be measured using a galvanometer, which together is a four-terminal resistor called kelvin bridge.

KELVIN DOUBLE BRIDE SPECIFICATIONS

• Suitable for the use of wires and cable manufacturers and Transformer industry

• Extensively used for finding the resistance of transformer winding, contact resistance of relays etc.

• Measures in the range of 0.2 Micro ohms to 11 Ohms

• Measurement Ranges: 2 Milliohms to 11 Ohms, 0.2Milli Ohms to 1.1 Ohms, 20 Micro Ohms to 11 Ohms, 2 Micro Ohms to 0.11 Ohms and 0.2 Micro Ohms to 0.0011 Ohms

• Max Current 10A intermittent and 5A continuous

• Accuracy: ± 0.05%

• Battery Reversing Switch provided to reverse the current in the bridge to eliminate thermal effect

• Complete with Spot Reflecting Galvanometer, Heavy Duty DC Current Source, Conductivity Attachment