Multi Range Digital Voltmeter
Product Code : SCL-PLE-11821
The StemAids Multi-Range Digital Voltmeter is a high-impedance, semiconductor-based instrument engineered for the empirical measurement of DC potential differences. Designed to replace traditional analog meters in advanced laboratories, this digital workstation provides high-resolution, parallax-free readings across multiple voltage scales. Manufactured to ISO 9001:2015 standards, it is optimized for University-level physics and electronics, offering the high input resistance necessary to measure sensitive circuits without causing "loading" errors.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Measurement Type |
DC Voltage (Multi-Range) |
|
Range Selection |
Manual rotary switch (e.g., 200mV,2V,20V,200V,600V) |
|
Display |
3–1/2 digit high-contrast LED or LCD with auto-polarity |
|
Input Impedance |
≥10MΩ (Ensures negligible circuit loading) |
|
Resolution |
100μV on the lowest (200mV) range |
|
Accuracy |
±0.5%–0.8% of reading ±1 digit |
|
Interface |
Color-coded 4mm safety-shrouded sockets |
|
Power Source |
Internal 9V battery or AC/DC mains adapter |
|
ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
|
HS Code |
9030.33.00 (Digital instruments for measuring voltage) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Potential Interface: Facilitates student understanding of electrical pressure and potential difference, supporting the core curriculum of Electromagnetism and Circuit Analysis.
- Resolution Quantification: Enables the physical measurement of battery discharge and semiconductor biasing; learners apply millivolt-range settings to observe minute changes that analog meters cannot detect.
- Loading Effect Analysis: Supports the analysis of meter-circuit interaction; students evaluate how the high input impedance (10MΩ) allows for accurate voltage measurement in high-resistance circuits without drawing significant current.
- Data Integrity Evaluation: Allows students to evaluate measurement uncertainty; the digital readout eliminates human interpolation errors, fostering higher standards for precision in laboratory data acquisition.
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 logic 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 component longevity in high-humidity or high-temperature environments.
Direct OEM Sourcing Advantages
Procuring the StemAids Multi-Range Digital Voltmeter directly ensures vertical manufacturing control:
- Precision Voltage Divider Calibration: Every internal divider network is matched using ultra-stable resistors to ensure uniform accuracy across all ranges, from millivolts to high-voltage DC.
- 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 rotary knobs, display modules, and internal circuit boards to maximize the long-term ROI of laboratory infrastructure.
- Manufacturing Control: Direct oversight of the assembly ensures high-insulation integrity between terminals, which is critical for safety and accuracy when measuring higher voltage ranges.
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