Kelvin Double Bridge

Product Overview

The Maxwell Kelvin Double Bridge (Model KDB-2031) is a precision instrument used for measuring very low resistances with exceptional accuracy. It functions on the current balance technique, comparing an unknown resistance with a standard reference to eliminate errors from contact and lead resistances.

Also known as the Kelvin Bridge or Thomson Bridge, it is widely used in scientific laboratories, industrial testing facilities, and conductor resistance (CR) testing environments.

SKU: KDB-2031

Description

Specifications

Type: Analog
Current: up to 10 Amps
Material: Manganin Wire Wound with high Temperature Coefficient of Resistance (TCR)
Phase: Single Phase
Voltage: 220 V
Accuracy: ±0.2%
Range: 0.2 Micro Ohm to 11 Ohms
Detector Type: Null Detector
Technique: Current Balance Technique
Usage/Application: Industrial & Laboratory
Country of Origin: Made in India

Technical Description

  • Specifically designed for measuring four-terminal resistors

  • Ensures high stability and repeatable accuracy

  • Built with manganin wire-wound resistors for excellent temperature coefficient control

  • Precision null detector ensures sensitive and stable readings

  • Analog operation for reliable field and lab use

Complete Set Includes

  1. Kelvin Double Bridge – Model No. KDB-2031

    • Range: 0.2 µΩ to 11 Ω

    • Accuracy: Better than 0.2%

    • Optional: NABL Certification available at extra cost

  2. Spot Reflecting Galvanometer – Model No. RG-321

  3. DC Source (10 Amps) – Model No. DC-341

    • Equipped with an analog current meter

  4. Attachment Cable (1 Meter Length) – Model No. CA-391

  5. Brass Clamp with Terminals – For zero-setting calibration (optional accessory)

Key Features

  • Sturdy design with proven record of 2000+ bridges sold in last 30+ years

  • Easy to operate and maintain

  • Highly accurate and repeatable readings

  • Designed for industrial and laboratory-grade testing

  • Fully compliant with industry standards

  • Efficient after sales as Maxwell is the kelvin double bridge manufacturer in India

Applications

  • Conductor Resistance (CR) Testing

  • Low Resistance Measurement

  • Calibration Laboratories

  • Research & Development Facilities

Why Kelvin Double Bridge Is Still Preferred by BIS & RITES Inspectors? Click to know more

Additional information

Range

0.2 µΩ to 11 Ω

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