Our manufacturing process combines rigorous engineering, automated production, and comprehensive quality control to deliver products that meet the most demanding international standards — every time.
From the moment we receive your inquiry to the moment products arrive at your facility — here's exactly how we work.
Our R&D center employs 40+ engineers working on product design, firmware development, and standards compliance. New products undergo 12–18 months of development including prototype testing, environmental simulation, and pre-certification testing before entering production. We continuously update product lines to meet evolving IEC, ANSI, and regional utility standards.
All raw materials — PCB components, current transformers, enclosures, terminals, and displays — are sourced from certified suppliers and subject to incoming quality inspection (IQI). Every batch of components is checked against our acceptance criteria before entering production. Critical components are tested for electrical performance, dimensional accuracy, and material certification compliance.
Our 18,000 m² facility houses 6 automated SMT (Surface Mount Technology) production lines capable of producing 2 million PCB assemblies per month. Lead-free solder paste, automated optical inspection (AOI), and X-ray inspection ensure every circuit board meets our quality standards before moving to final assembly.
Final assembly integrates the PCB, current sensing elements, displays, enclosures, and terminals. Each unit has firmware loaded and programmed with customer-specific parameters including meter constant, communication address, tariff settings, and display language. Our assembly staff follow standardised work instructions with torque specifications and wiring verification at every step.
Every energy meter is calibrated on our 3-phase energy meter calibration benches traceable to NIST and PTB national standards. Meters are tested at multiple load points (1%, 5%, 25%, 100% Imax) to verify error remains within the declared accuracy class. Current transformers are ratio and phase error tested to IEC 61869 on precision CT test benches. Calibration records are retained for full traceability.
After calibration, units undergo final quality control inspection including visual inspection, sealing, terminal cover fitting, and packaging verification. Products for export markets undergo additional environmental tests: temperature cycling (-25°C to +55°C), humidity testing (95% RH), vibration, and impulse voltage testing per IEC 60068. We maintain a defect rate below 0.1% across all product lines.
Approved units are packed in export-grade cartons with inner foam protection, accompanied by user manuals, test certificates, and compliance documentation. We coordinate shipping via Shanghai and Ningbo ports (45 min drive), handling FCL, LCL, air freight, and express courier services. Full documentation package: commercial invoice, packing list, certificate of origin (CO), CE declaration, and test reports provided for every shipment.
Our relationship doesn't end at delivery. We provide technical support for installation, commissioning, and integration. English-language user manuals, wiring diagrams, and software tools provided for all products. Firmware updates, replacement parts, and technical assistance available for the full product lifecycle. Our engineering team can assist with utility integration, head-end system configuration, and custom firmware requirements.
Our quality control process is integrated at every stage.
Here's what to expect from order confirmation to delivery.
Let our team guide you through the sourcing process.