El.Ma. Electronic Machining srl

Via S. Cassiano, 20
38066 Riva del Garda (TN)

Phone: +39 0464 557665 (2 lines)
Fax: +39 0464 550751

How to reach us

Enel electronic kWh meter assembly, test and calibration

The line is used in order to automatically assemble, test and calibrate electronic monophase and polyphase kilowatt-hour meters provided by Enel, the most important provider of power and gas in Italy.

The line takes an area of over 400 m2 .

The medium time for operations is 4 seconds for monophase meters and 12 seconds for polyphase meters, the daily productivity is 16.800 and 5.600 pieces in 22 working hours and the efficiency is higher than 85%.


The process for assembly, test and calibration is structured as follows:

  • Cycle start/components checking
  • Base placing on conveyer belt
  • Tamper contacts mounting/protections screwing
  • Power groups mounting
  • Breaker mounting

  • Board mounting and cables soldering

  • Case mounting

  • Test
  • Calibration (followed by verify)

  • Laser marking

  • Meters sealing

  • Line unloading
  • Label applying and meters packing

All operations and meters serial numbers are automatically saved on databases.


The video shows how the robot operates in calibration zone.