Multi Range Digital Ammeter
Product Code : SCL-PLE-11820
The StemAids Multi-Range Digital Ammeter is a high-accuracy semiconductor-based instrument engineered for the empirical measurement of DC currents across multiple orders of magnitude. Unlike analog meters, this digital workstation provides instantaneous, parallax-free readings with a high-contrast LED or LCD interface. Manufactured to ISO 9001:2015 standards, it is optimized for University and Technical College laboratories where high resolution and internal overcurrent protection are essential for sensitive circuit analysis.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Measurement Type |
DC Current (Multi-Range) |
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Range Selection |
Manual rotary switch (e.g., 200μA,2mA,20mA,200mA,2A,10A) |
|
Display |
3–1/2 digit high-contrast LED or LCD with polarity indicator |
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Resolution |
Up to 0.1μA on the lowest range |
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Accuracy |
±0.5%–1% of reading ±2 digits |
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Input Protection |
Fast-acting internal fuse and diode clamping |
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Interface |
Color-coded 4mm safety-shrouded sockets |
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Power Source |
Internal 9V battery or regulated AC/DC adapter |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9030.33.00 (Digital instruments for measuring current) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Digital Interface: Facilitates student transition from analog estimation to digital precision, supporting Data Science and Metrology modules by providing clear, unambiguous numerical data.
- Magnitude Quantification: Enables the physical study of varied loads; learners apply different range settings to measure everything from micro-amp leakage currents to high-ampere motor draws.
- Circuit Impact Analysis: Supports the analysis of "Burden Voltage"; students evaluate how the ammeter's internal shunt resistance slightly alters the circuit under test, fostering a deeper understanding of real-world measurement limitations.
- Protection Evaluation: Allows students to evaluate and practice safe measurement habits; the multi-range configuration teaches the "start high, work down" principle to prevent blowing internal fuses.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring anti-static (ESD) shielding and individual shock-absorbing cells to protect the CMOS/LSI circuitry and display from transit-induced damage.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a factory-verified calibration certificate.
- Durability: Tropicalized design featuring moisture-resistant PCBs and UV-stabilized enclosures, ensuring display clarity and logic stability in high-humidity or high-temperature laboratory climates.
Direct OEM Sourcing Advantages
Procuring the StemAids Multi-Range Digital Ammeter directly ensures vertical manufacturing control:
- Precision Shunt Calibration: Every internal shunt resistor is laser-trimmed to ensure uniform accuracy across all measurement ranges, providing consistent data for student lab reports.
- High-Stability Reference: Direct oversight of the internal voltage reference components ensures the meter maintains its calibration over a wide range of operating temperatures.
- Direct Factory Spares Availability: Guaranteed availability of replacement fast-blow fuses, rotary knobs, and LCD modules to maximize the long-term ROI of laboratory infrastructure.
- Manufacturing Control: Direct oversight of the soldering and assembly process ensures low-impedance internal paths, which is critical for maintaining high accuracy during high-current (10A) measurements.