Callender & Griffith's Bridge
Product Specification Sheet
Callender & Griffith's Bridge
Model Number: MT-E219
The Callender & Griffith's Bridge is a precision laboratory instrument designed for accurate resistance and temperature measurement experiments. Manufactured by Micro Technologies, this versatile instrument combines the functions of a Carry Foster Bridge, Potentiometer, and Callender & Griffith's Bridge, making it an ideal solution for educational laboratories, research institutes, and engineering colleges.
Product Specification
The Callender & Griffith's Bridge is a precision electrical measuring instrument developed for advanced laboratory experiments involving resistance measurement, temperature determination, and bridge circuit analysis. Manufactured by Micro Technologies, this high-quality instrument combines three laboratory instruments into one compact unit, offering exceptional versatility for educational and research applications.
This three-in-one instrument functions as a Carry Foster Bridge, Potentiometer, and Callender & Griffith's Bridge, allowing students and researchers to perform a wide variety of precision electrical measurements using a single laboratory setup. The integrated design reduces equipment requirements while improving experimental flexibility.
The bridge incorporates a 50 cm precision slide wire having a resistance of 1 Ohm, accurately calibrated into 100 equal divisions for precise balancing and measurement. This finely calibrated slide wire provides excellent accuracy and repeatability during resistance comparison and temperature measurement experiments.
A series of 14 precision resistance coils are mounted on rotary dial switches, allowing users to select different resistance values quickly and conveniently. Resistance terminals are properly arranged to support the operation of all three measuring configurations.
A smooth-moving jockey travels over a polished brass rod, providing reliable electrical contact while balancing the bridge circuit. This ensures accurate null-point detection and consistent experimental results.
The instrument offers an impressive measurement accuracy of ±0.05%, making it suitable for precision laboratory work involving platinum resistance thermometers, resistance calibration, and electrical measurements.
The complete assembly is housed in a beautifully finished Australian Pine wooden cabinet, providing excellent mechanical strength, durability, and an attractive laboratory appearance. The compact tabletop design makes it suitable for classroom demonstrations, research laboratories, and advanced experimental work.
The Callender & Griffith's Bridge is widely used in engineering colleges, universities, physics laboratories, electrical engineering laboratories, calibration laboratories, research institutes, instrumentation laboratories, and industrial training centers.
Each Callender & Griffith's Bridge manufactured by Micro Technologies undergoes rigorous quality inspection and precision calibration to ensure dependable performance, high accuracy, and long service life.
Features
- Three instruments in one unit
- Functions as Carry Foster Bridge
- Functions as Potentiometer
- Functions as Callender & Griffith's Bridge
- 50 cm precision slide wire
- 1 Ohm calibrated slide wire
- 100 equal calibrated divisions
- Fourteen precision resistance coils
- Rotary resistance selector dials
- Smooth brass slide rod
- Precision moving jockey
- Measurement accuracy of ±0.05%
- High-quality terminal arrangement
- Attractive Australian Pine wooden cabinet
- Compact tabletop construction
- Reliable laboratory performance
- Long operational life
Benefits
- Performs three laboratory experiments using one instrument
- High precision resistance measurements
- Excellent temperature measurement capability
- Improves laboratory efficiency
- Easy operation and balancing
- Accurate bridge measurements
- Durable wooden cabinet construction
- Suitable for advanced laboratory experiments
- Reliable long-term performance
- Cost-effective educational equipment
- Ideal for teaching precision measurement techniques
- Low maintenance
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Callender & Griffith's Bridge |
| Instrument Type | Three-in-One Bridge Instrument |
| Functions | Carry Foster Bridge, Potentiometer & Callender & Griffith's Bridge |
| Slide Wire Length | 50 cm |
| Slide Wire Resistance | 1 Ohm |
| Calibration | 100 Equal Divisions |
| Resistance Coils | 14 Precision Coils |
| Measurement Accuracy | ±0.05% |
| Jockey | Precision Sliding Contact |
| Cabinet | Australian Pine Wooden Cabinet |
Optional Accessories
- DC Power Supply
- Platinum Resistance Thermometer
- Analog Galvanometer
- Digital Galvanometer
- Steam Boiler with Heating Element
- Rheostat
- Simple Potentiometer
- Patch Cords (4 mm)
- User Instruction Manual
Applications
- Physics Laboratories
- Electrical Engineering Laboratories
- Engineering Colleges
- Universities
- Polytechnic Institutes
- Calibration Laboratories
- Instrumentation Laboratories
- Thermal Engineering Laboratories
- Research Laboratories
- Scientific Research Centers
- Educational Demonstrations
- Industrial Training Institutes (ITI)
SKU System
MT-CGB-001
FAQs
What is Callender & Griffith's Bridge used for?
It is used for precision resistance measurement, temperature measurement using platinum resistance thermometers, potentiometer experiments, and Carry Foster Bridge experiments.
How many instruments are combined in this unit?
The instrument combines three functions:
- Carry Foster Bridge
- Potentiometer
- Callender & Griffith's Bridge
What is the length of the slide wire?
The bridge incorporates a 50 cm precision slide wire with a resistance of 1 Ohm.
How many resistance coils are provided?
The instrument includes 14 precision resistance coils mounted on rotary selector dials.
What is the measurement accuracy?
The bridge offers a high measurement accuracy of ±0.05%.
What cabinet is used?
The instrument is housed in a premium Australian Pine wooden cabinet, providing durability and an attractive appearance.
Which accessories can be used with this bridge?
Compatible accessories include:
- DC Power Supply
- Platinum Resistance Thermometer
- Analog or Digital Galvanometer
- Steam Boiler with Heating Element
- Rheostat
- Simple Potentiometer
Can the Callender & Griffith's Bridge be supplied in bulk?
Yes. Micro Technologies supplies Callender & Griffith's Bridge instruments for educational institutions, research laboratories, government organizations, OEM projects, distributors, and bulk procurement.
Why Choose Our Products
- Precision laboratory bridge instrument
- Three-in-one multifunction design
- High accuracy (±0.05%)
- Premium Australian Pine cabinet
- High-quality resistance coils
- Smooth precision slide mechanism
- OEM and institutional supply available
- Competitive B2B pricing
- Strict quality testing
- Reliable technical support
- Excellent after-sales service
- Long operational life
Call to Action
Perform accurate resistance and temperature measurement experiments with the Callender & Griffith's Bridge from Micro Technologies. Contact us today for pricing, institutional procurement, OEM manufacturing, government tenders, distributor opportunities, and bulk order quotations.
