Sliding Rheostat Dual Tube
Product Code : SCL-PLE-11799
The StemAids Dual Tube Sliding Rheostat is a heavy-duty electrical workstation engineered for the empirical study of current control and potential division. By utilizing two parallel resistive tubes, this apparatus offers significantly higher power dissipation and a wider range of resistance adjustment compared to single-tube models. Manufactured to ISO 9001:2015 standards, it is optimized for University and Technical College laboratories for regulating large currents in electromagnetism and power electronics experiments.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Resistive Element |
Oxidized Constantan or Eureka wire wound on insulating ceramic tubes |
|
Configuration |
Dual-tube (Parallel or Series linkable) for enhanced power handling |
|
Standard Ratings |
Available in various Ω/A combinations (e.g., 20Ω/5A,50Ω/3A,100Ω/2A) |
|
Slider Interface |
Low-resistance phosphor-bronze or brass brush contacts with insulated handles |
|
Support Structure |
Heavy-duty metallic end-pillars with reinforced mounting holes |
|
Terminal Access |
Three 4mm safety-shrouded sockets (permits use as Rheostat or Potentiometer) |
|
Tube Construction |
High-grade vitrified ceramic for superior heat dissipation |
|
ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
|
HS Code |
8533.29.00 (Electrical variable resistors/rheostats) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Current Control Interface: Facilitates student visualization of the relationship between resistive length and current flow (I=V/R), supporting Electromagnetism Module 101.
- Potential Divider Quantification: Enables the physical study of voltage regulation, allowing learners to apply the three-terminal configuration to create a continuously variable potential divider.
- Power Dissipation Analysis: Supports the analysis of Joule heating; the dual-tube design allows students to evaluate the impact of high-current loads on resistor temperature and stability.
- Circuit Integration Evaluation: Allows students to evaluate the performance of heavy electrical machinery, such as DC motors or large solenoids, by providing a robust means of current regulation.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring high-density foam suspension to protect the ceramic tubes from brittle fracture during maritime transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a safety datasheet on maximum current ratings.
- Durability: Tropicalized design featuring oxidized resistance wire to prevent shorting between adjacent turns and anti-corrosion hardware for long-term stability in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Dual Tube Sliding Rheostat directly ensures vertical manufacturing control:
- In-House Ceramic Vitrification: Every tube is manufactured to withstand high thermal shock, ensuring the rheostat does not crack under prolonged high-current operation.
- Precision Wire Tensioning: Direct oversight of the winding process ensures that the wire turns are perfectly uniform and tight, preventing "dead spots" or erratic resistance jumps during sliding.
- Direct Factory Spares Availability: Guaranteed availability of replacement slider brushes, ceramic tubes, and insulated handle assemblies to maximize laboratory ROI.
- Manufacturing Control: Direct oversight of the terminal assembly ensures ultra-low contact resistance between the resistance wire and the external binding posts, providing students with accurate data.
.jpg)
