MR66 Moving Coil Meter
Product Code : SCL-PLE-11812
The StemAids MR66 Moving Coil Meter is a professional-grade analog instrument engineered for precise electrical monitoring in DC circuits. Featuring a standard rectangular profile (approx. 60×70mm), it offers a larger scale area than the MO65 series, providing enhanced readability for University-level physics experiments and industrial control panels. Manufactured to ISO 9001:2015 standards, the MR66 is designed for high-fidelity tracking of current and voltage where visual trends and mechanical damping are critical for data interpretation.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Meter Movement |
Precision Permanent Magnet Moving Coil (PMMC) |
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Accuracy Class |
2.0 (Standard) / 1.5 (High-Precision available) |
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Form Factor |
Rectangular front profile (Approx. 60×70mm) |
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Available Ranges |
DC Micro-amps, Milli-amps, Amps, and Volts (up to 600V) |
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Scale Length |
Approx. 55mm arc for high-resolution readings |
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Damping |
Fluid-like eddy current damping for steady pointer movement |
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Zero Adjustment |
Front-panel mechanical screw for user-calibration |
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Housing |
Dust-proof, flame-retardant ABS case with clear acrylic window |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9030.33.00 (Measuring instruments for electrical parameters) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Dynamic Monitoring Interface: Facilitates student visualization of circuit transients and fluctuations, supporting the study of capacitor charging/discharging and inductive spikes.
- Parameter Quantification: Enables the physical measurement of electrical loads; learners apply these meters to verify the relationship between current (I) and voltage (V) in resistive networks.
- Calibration Analysis: Supports the analysis of measurement error; students use the front-facing zero-adjuster to evaluate the impact of mechanical offsets on experimental accuracy.
- Resolution Evaluation: The MR66's elongated scale allows students to evaluate smaller fractional changes in current compared to compact models, fostering higher precision in laboratory reports.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant). Each meter is housed in individual anti-vibration shock-cells to protect the delicate sapphire jewel bearings and hairsprings from the stresses of transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a factory-verified calibration report for the specific range ordered.
- Durability: Tropicalized design featuring anti-tarnish internal wiring and UV-resistant scale printing to prevent "yellowing" or fading in tropical or high-temperature laboratory environments.
Direct OEM Sourcing Advantages
Procuring the StemAids MR66 series directly ensures vertical manufacturing control:
- In-House Magnet Treatment: Every PMMC movement undergoes magnetic stabilization (aging) to ensure the flux density remains constant, preventing accuracy "drift" over the life of the instrument.
- Precision Hairspring Balancing: Direct oversight of the phosphor-bronze spring assembly ensures a linear torque-to-deflection ratio, resulting in uniform scale graduations.
- Direct Factory Spares Availability: Guaranteed availability of replacement clear-covers, mounting studs, and terminal nuts to maximize the long-term ROI of laboratory infrastructure.
- Manufacturing Control: Direct oversight of the scale-marking process ensures high-contrast, permanent ink application that remains legible under varying laboratory lighting conditions.
