● Display and indication: It adopts wide viewing angle LCD with backlight and the meter can be read and inquired with backlight. The displayed contents can be switched via button, and the displayed items can be configured as per the requirements.

   One kWh impulse isolated output and one kWh impulse LED

● Metering: Import, export and total kWh metering, the total kWh can be combined by import and export kWh.

● TOU function: 4 tariffs;Built-in 2 sets of time zone tables. Calendar and clock are available. It can set 8 time periods with minimum 15 minutes in 24 hours

● Billing: It can record latest 12 times' billing historical data including total kWh and kWh of each tariff. If billing time is missed during a power outage, all billing data will be supplemented with latest 12 times when the power is on.

● Measurements: It can measure various parameters such as voltage, current (neutral), power, power factor, etc.

● Event logs: It can record programming, meter cover open, terminal cover open, power outage, time correction with timestamp, etc.

● Communication interface: RS485 and far infrared.

● Meter can be read during power outage.

IEC62052-11 IEC62053-21

DDSF217 (S18-4) Single Phase Multi-tariff Electronic Meter adopts advanced ASIC, LCD, SMT technology with TOU or step tariff functions. It is featured with high accuracy and reliability, low power consumption, long life, etc. It also has infrared and RS485 interface.