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Metravi KDBR Kelvin Double Bridge

Price 53277.00 INR/ Piece

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MOQ : 1 Piece

Metravi KDBR Kelvin Double Bridge Specification

Max Height
Approx. 200 mm

Measuring Range
0.0001 to 11,111

Response Time
Immediate (manual balance)

Number of Specimens
Single measurement

Test Range
0.0001 to 11,111

Power Supply
Self-powered (no external supply required)

Mounting Type
Bench-top

Humidity
Up to 80% RH

Specimen Size
Applicable for wires and small resistors (up to 15 mm thickness)

Interface Type
Terminals for connection

Resolution
0.0001

Temperature
0C to 50C

Display Type
Analog meter (null detector with galvanometer indication)

Application
Measurement of low resistance in components, shunts, wires, cables, and contacts

Equipment Type
Kelvin Double Bridge

Accuracy
0.1% of reading

Operating Voltage
Self-powered by internal battery or hand generator

Features
Four terminal measurement, high accuracy, portable, no external power needed

Automation Grade
Manual

Usage
Measurement of very low resistances

Machine Weight
Approx. 7 kg

Test Speed
Manual operation

Control Mode
Manual

Insulation Resistance
More than 500 M at 500V DC

Terminals
Four-terminal Kelvin connections

Standard Resistors
Fitted with precision wire-wound resistors

Housing Material
Sturdy wooden/metal carrying case

Accessories Included
Test leads, instruction manual

Bridge Ratio Arms
1:1, 1:10, 1:100, 1:1000

Dimension
350 mm 200 mm 175 mm (approx.)

Galvanometer Sensitivity
1 microampere per scale division

Metravi KDBR Kelvin Double Bridge Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash in Advance (CID), Cheque, Cash Advance (CA)

About Metravi KDBR Kelvin Double Bridge

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

Unmatched Precision for Low Resistance Measurement

The Metravi KDBR Kelvin Double Bridge is engineered to deliver extremely accurate measurements of low resistances using precision wire-wound resistors and a sensitive galvanometer. Featuring four-terminal Kelvin connections, it effectively eliminates lead and contact resistance errors, ensuring dependable results every time.

Built for Reliability in Diverse Environments

Encased in a robust wooden or metal housing, this bridge is designed for use in laboratory and field conditions. With an insulation resistance greater than 500 M at 500V DC, operational temperature range of 0C to 50C, and suitability for up to 80% relative humidity, it excels in demanding environments.

Flexible and User-Friendly Operation

With manual control, self-powered operation, and analog galvanometer indication, the bridge offers responsive, intuitive handling. Accessories such as test leads and a user manual are included for convenient setup. Its portable design ensures hassle-free measurements wherever needed.

FAQ's of Metravi KDBR Kelvin Double Bridge:

Q: How is the Metravi KDBR Kelvin Double Bridge powered during operation?

A: The device is entirely self-powered, operating either via an internal battery or hand generator, so no external power supply is required for measurements.

Q: What components can be measured using the Metravi KDBR Kelvin Double Bridge?

A: This bridge is specifically designed to measure very low resistances in components such as shunts, wires, cables, contacts, and small resistors up to 15 mm thickness.

Q: Where is the Metravi KDBR typically used?

A: Thanks to its portable bench-top design and robust case, the Kelvin Double Bridge is used both in laboratories and onsite-particularly where highly accurate low-resistance measurements are essential.

Q: What is the process for conducting a resistance measurement with this bridge?

A: To measure resistance, connect the specimen using the four-terminal Kelvin connections. Manually balance the bridge using the ratio arms and read the result on the analog galvanometer, following instructions provided in the manual. Immediate response is provided once balance is achieved.

Q: What are the benefits of four-terminal Kelvin connections in this device?

A: Four-terminal (Kelvin) connections minimize the impact of lead and contact resistance, delivering highly accurate and repeatable measurements, especially critical for very low resistances.

Q: When should I consider using this bridge over other resistance measurement methods?

A: Choose the KDBR Kelvin Double Bridge when precise, low-resistance measurements are necessary, especially when working without access to external power or in environments with potential for high contact resistance errors.

Q: What advantages does the Metravi KDBR offer in terms of usability and reliability?

A: Key advantages include high accuracy (0.1%), wide measurement range, portability, ease of manual operation, and rugged construction-making it reliable for both laboratory and field applications.

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