RN300D three-phase rail type multifunctional electric energy meter

The three-phase rail smart meter can measure active and reactive energy in both forward and reverse directions, and can also measure the voltage, current, total active power, reactive power, power factor, and grid frequency of phases A, B, and C. It also has the function of recording maximum demand; Accumulate and store based on active and reactive power, as well as positive and negative total, peak, flat, and valley respectively (only high-end models have the function of multiple rate).

Programmable setting of two time zones per year, two time slot tables, 8 days of time slots, and four rates: peak, off peak, flat, and valley. The minimum interval between time slots is 15 minutes.

● It has data wheel display and data key display functions, and can query voltage, current, power factor, frequency, active power, reactive power, forward and reverse active energy, and forward and reverse reactive energy through the buttons on the panel. If no button is pressed within 8 seconds, the wheel display state will automatically switch, and the wheel display time is 4 seconds

● Optional display of maximum demand for U, I, P, Q, as well as peak, off peak, and valley total reactive energy in both directions.

● Reactive power pulse output, used for meter calibration and remote power collection. Passive optoelectronic isolation output port, pulse width: 80ms ± 20ms

The clock error is within 0.5S/day, and it has automatic switching functions for calendar, timing, and leap year.

● CommunicationagreementRS485 optoelectronic isolation communication interface, optional DL/T645-2007, MODBUS-RTU communication protocol.

Communication speed: 9600bps (default), 19200bps, 4800bps, 2400bps, 1200bps available.