Kelvin Bridge Setup

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Product Details:

Power Operates on external DC supply (up to 2V)
Usage Measurement of very low resistance (micro-ohms) in laboratory experiments
Display Analog scale via galvanometer
Voltage Up to 2V DC (typical operating voltage for bridge circuit)
Product Type Electrical Resistance Measurement Bridge
Material Premium quality Bakelite and brass terminals
Design Classic Kelvin Double Bridge configuration with dual ratio arms
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Kelvin Bridge Setup Price And Quantity

Minimum Order Quantity 1 Unit

Terminals Heavy-duty brass binding posts
Bridge Arms Manganin wire for stability and low temperature coefficient
Calibration Supplied calibrated with traceable certificate
Resistance Range 1 micro-ohm to 1 ohm
Application Laboratories, calibration centers, quality control, educational institutions
Finish Scratch-resistant base coating for durability
Connections 4-wire (Kelvin) connections for elimination of lead/contact resistance
Ratio Arms Four ratio arms with precise resistance values
Null Detection High-sensitivity built-in galvanometer
Operating Temperature 0°C to 50°C

Kelvin Bridge Setup Product Specifications

Dimension (L*W*H) 550mm x 220mm x 200mm (approx.)
Power Operates on external DC supply (up to 2V)
Material Premium quality Bakelite and brass terminals
Product Type Electrical Resistance Measurement Bridge
Power Source External low-voltage DC power supply
Weight Approx. 3.2 kg
Voltage Up to 2V DC (typical operating voltage for bridge circuit)
Detector Galvanometer type null detector
Display Analog scale via galvanometer
Usage Measurement of very low resistance (micro-ohms) in laboratory experiments
Charging Time Not applicable (passive instrument)
Accuracy 0.1% or better
Design Classic Kelvin Double Bridge configuration with dual ratio arms

Terminals Heavy-duty brass binding posts
Bridge Arms Manganin wire for stability and low temperature coefficient
Calibration Supplied calibrated with traceable certificate
Resistance Range 1 micro-ohm to 1 ohm
Application Laboratories, calibration centers, quality control, educational institutions
Finish Scratch-resistant base coating for durability
Connections 4-wire (Kelvin) connections for elimination of lead/contact resistance
Ratio Arms Four ratio arms with precise resistance values
Null Detection High-sensitivity built-in galvanometer
Operating Temperature 0°C to 50°C

Kelvin Bridge Setup Trade Information

Supply Ability 5 Unit Per Week
Delivery Time 4-5 Days

Product Description

Kelvin Bridge Setup

Experimentation with Kelvin`s Bridge is a useful training product for measuring very small values of resistance. Kelvin''s double bridge or Kelvin''s bridge (as it is commonly known) is a variation of Wheatstone bridge and is based on the same principle. By setting the null point we can evaluate the unknown resistance. This product has an analog galvanometer for the purpose of null detection implemented on the trainer board itself.

Accessories:

DC source 0-12 Volts/5 Amps
Galvanometer 30-0-30 division sensitivity of 2µa/division
Connecting leads (current carrying capacity 5 Amps) .
Four Terminal Unknown Resistance

Precision Measurement of Low Resistance

The Kelvin Bridge Setup is meticulously designed for high-accuracy resistance measurements at the micro-ohm level. Its manganin wire bridge arms and four-wire Kelvin connection ensure that even the tiniest resistances are measured precisely, essential for advanced laboratory and quality control applications.

Durable Design and Easy Operation

Encased in premium Bakelite with a scratch-resistant coating, this setup is built to withstand repeated use. Heavy-duty brass terminals provide reliable connections, while the built-in galvanometer offers intuitive analog readings. With a straightforward external low-voltage DC supply, operation is both safe and user-friendly.

Trusted Calibration for Critical Applications

Every Kelvin Bridge Setup is supplied with a factory calibration and traceable certificate, guaranteeing trust in every measurement. Whether used in laboratories, educational institutions, or calibration centers, it is an instrument of choice where accuracy and reliability are paramount.

FAQs of Kelvin Bridge Setup:

Q: How do I connect samples to the Kelvin Bridge Setup for accurate measurement?

A: To ensure precise measurement of very low resistances, use the provided four-wire (Kelvin) connection method. Attach both current and potential leads to the heavy-duty brass binding posts, effectively eliminating errors from lead and contact resistance.

Q: What applications is the Kelvin Bridge Setup most suitable for?

A: This instrument is ideal for laboratory experiments, calibration centers, quality control, and educational institutions where accurate detection of low resistance (1 micro-ohm to 1 ohm) is critical.

Q: When should I use the Kelvin Bridge instead of a standard Wheatstone Bridge?

A: Use the Kelvin Bridge Setup when measuring resistances below 1 ohm, especially in the micro-ohm range, where lead and contact resistance can significantly affect results. Its specialized four-wire connection and null measurement enhance accuracy in these conditions.

Q: Where is the optimal place to use and store the Kelvin Bridge Setup?

A: Operate and store the bridge in clean, dry environments with temperatures between 0C and 50C to maintain calibration integrity and device longevity. The robust Bakelite casing offers additional protection against laboratory wear and tear.

Q: What is the process for calibrating or verifying the bridges accuracy?

A: Each Kelvin Bridge Setup is supplied calibrated with a laboratory-traceable certificate. If recalibration is needed, it should be performed at an certified calibration center to ensure continued accuracy within the specified tolerance (0.1% or better).

Q: How is the resistance value indicated during measurement?

A: The detected balance point is shown on a high-sensitivity built-in galvanometer with an analog scale. Adjust the bridge ratio arms until the galvanometer indicates null, and read the corresponding resistance value based on the bridge configuration.

Q: What are the main benefits of using this Kelvin Bridge Setup in a laboratory environment?

A: Users gain reliable, high-precision measurement of ultra-low resistances, minimal temperature-related drift thanks to manganin wire, and durability from robust materials. Its classic design and traceable calibration make it a trusted choice for critical resistance measurements.

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