Our quality control system is designed as a multi-stage engineering process to ensure measurement accuracy, batch consistency, and long-term field reliability in utility environments.
Key components are inspected before production:
• Metering IC chips
• Copper terminals and conductive parts
• PCB electronic boards
• Mechanical housing and sealing materials
Only qualified materials are released to production lines.
During production:
• Hourly sampling inspection
• Assembly consistency checks per production cycle
• Semi-finished product functional testing
• Line-level deviation monitoring
Each meter is verified using dedicated calibration stations:
• Multi-point load accuracy testing
• Voltage fluctuation simulation
• Continuous operation stability testing
• Batch-level calibration traceability
Calibration is completed before final packaging.
Products undergo simulated field testing:
• High and low temperature cycling
• Long-term aging simulation
• Load fluctuation stress testing
• Electrical stability under voltage variation
Before export:
• Full functional inspection
• Appearance and assembly consistency check
• Packaging verification
• Random batch re-testing
Only qualified batches are approved for shipment.
Each production batch is traceable through:
• Production date
• Calibration station ID
• Test result records
• Quality inspection logs
This ensures accountability for utility-level procurement and EPC acceptance.
We can provide:
• Inspection reports
• Calibration records
• Test summaries
• CE / ISO certificates (if applicable)
Used for:
• Utility acceptance
• EPC project delivery
• Customs clearance