They can be applied for the settlement of accounts with power stations, supervision of industrial processes, settlement of accounts with underleasers, and as elements of energy management systems. The housing enables to place on the terminal cover a legal seal and the seal of the power plant.

The LS1.1 watt-hour meter can be inserted in existing computer network systems what enables to offer interface and protocol converters of LUMEL production.

• connected to ETHERNET network through a PD8 converter,
• monitored through INTERNET using a SM6 www server ensuring also the archiving of measuring data.

Technical description

• The LS1.1 watt-hour meter is equipped with dedicated 7-digit LCD with graphical symbols. As standard accessories there are: a pulse diode with a defined time-constant (imp/kWh), two-position switch, interface for data transmission in infrared communication.
• The optional equipment of LS1.1 watt-hour meters consists of:
  • interface for RS-485 serial transmission with MODBUS protocol,
  • interface for RS-232 serial transmission with MODBUS protocol,
  • SRD radio-module (1E),
  • optical interface acc. to EN62056-21

Extra functions

• display of customer code,
• display of the current date and real time,
• calendar of holidays,
• storage of annual program of the day division into time zones, separately for day-offs with the possibility of the change introduction by the opto-connector,
• automatic closing of account periods in the given day of the month at a defined time or on request, 
• sequential display of measured quantities on the LCD display:
  • active energy in time zones and summary,
  • energy at the end of the account period in time zones and summary, date and time of the account period closing,
• 15 or 60 minutes’ maximal averaged power, with a time index,
• cumulated power.