Multi Range Digital Voltmeter
Product Code : SCL-PLE-11821
The JLab India 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. 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 |
Certification | ISO certificates available on request |
| 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
JLab India 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 JLab India 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.
