Resistance Box 100 Ohms
Product Code : SCL-OS-12286
The StemAids 100-Ohm Resistance Box is a high-stability laboratory instrument engineered for Secondary and Vocational physics curricula. It provides discrete, incremental resistance control for Bridge circuits and Ohm’s Law verification. Calibrated to international metrology standards, this unit ensures minimal contact resistance and thermal stability for repeatable experimental data in institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Resistance Range |
1 to 100 Ohms (Incremental Plug Selection) |
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Coil Composition |
Non-inductively wound Manganin/Constantan wire for thermal stability |
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Enclosure Material |
Ruggedized, high-insulation polished teakwood or industrial polymer |
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Panel Material |
High-grade ebonite or non-conductive thick-laminate top-plate |
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Contact Interface |
Precision-ground, tapered brass plugs with heavy-duty brass blocks |
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Accuracy Tolerance |
Calibrated to within ±0.5% to ±1% (Standard Laboratory Grade) |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 quality management protocols |
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HS Code |
8533.29 (Electrical resistors, fixed, for a power handling capacity > 20 W) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
Feature: Non-Inductive Coil Winding Outcome: Eliminates parasitic inductance, allowing students to Analyze pure resistive behavior in both AC and DC circuits.
Feature: Tapered Brass Plug System Outcome: Minimizes contact resistance variables, enabling students to Evaluate circuit sensitivity and Wheatstone Bridge balancing with high precision.
Feature: Removable Resistance Plugs Outcome: Facilitates the Application of series circuit theory by allowing the physical addition or subtraction of known resistance values.
Feature: Transparent Component Layout Outcome: Enhances Understanding of internal circuit continuity and the mechanical execution of electrical junctions.
International Logistics & Compliance
StemAids ensures seamless integration into global institutional tenders through standardized logistical readiness:
Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring vacuum-sealed moisture barriers to prevent oxidation of brass interfaces during maritime transit.
Documentation: Every shipment includes a Manufacturer’s Authorization Form (MAF), IQ/OQ/PQ Certification, and comprehensive Technical Manuals in English.
Durability: Tropicalized design with high-insulation varnishing, tested for operation in demanding climates (up to 45°C and 90% non-condensing humidity).
Direct OEM Sourcing Advantages
Procurement through StemAids provides definitive factory-direct authority and technical continuity:
In-house Precision Calibration: All units undergo individual verification against traceable master standards to ensure uniform reliability across high-volume institutional batches.
Batch-Tested for Uniform Reliability: Manufacturing protocols include stress-testing coils for resistance drift to ensure consistent performance over multiple academic cycles.
Direct Factory Spares Availability: Guaranteed access to original replacement brass plugs, blocks, and internal coils directly from the OEM production line.
Vertical Integration: Total oversight of the manufacturing lifecycle ensures the use of high-purity alloys, preventing the accuracy degradation common in non-OEM alternatives.
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