R 35mm DIN standard rail installation, in compliance with DIN EN 50022 standard, or front panel installation (installation hole center distance of 63mm), two installation methods can be chosen by the user at will.

R 10 pole width (module 12.5mm), in accordance with JB/T7121-1993 standard.

R can choose to measure the hourly rate at 3 times, and can set 12 daily time periods. The automatic reading date for each month can be set arbitrarily, and the weekly and daily single rate function can be set.

R can choose 2-rate metering, equipped with a rate setting port, input control voltage 0-90 Vac, set rate F1, input control voltage 150-400 Vac, set rate F2, rate conversion is controlled by an external timer or similar device.

The R-minute 3-rate meter has a built-in clock and maintenance free backup lithium battery. The battery capacity is detected and displayed in real time, and can store 12 months of power data.

The R 7-digit LCD display can choose between cyclic display (default) or button by button display mode. The cyclic display period can be set, and the displayed data items can be selected. The decimal place of the data display can be set to one or two digits.

R can choose to have built-in far-infrared data communication port and RS485 data communication port for meter setting and reading. The meter setting operation has password protection function, and the communication protocol complies with DL/T645-1997 standard. Other communication protocols can also be selected.

R-S type wiring (bottom in, top out), can be used directly or CT connected.

The R CT connected instrument can be selected from two types of instruments: indirect reading or direct reading. The direct reading CT connected instrument can set 27 CT ratios. After setting, the instrument will read directly without multiplying by the CT ratio.

The R direct reading CT access instrument is displayed on a 5+2-digit (CT ratio 5:5A only) or 7-digit integer LCD, selected by the set CT ratio.

R uses non-volatile memory to permanently store data after power failure.

The R configuration has a polarity passive power pulse output port that complies with IEC 62053-31 and DIN 43864 standards.

The R LED indicates the power status of each phase, the power pulse signal, the current rate status, and the data communication status.

R automatically detects the direction of load current flow and is indicated by LED.

Single directional measurement of three-phase active energy consumption, independent of the direction of load current flow, in accordance with IEC 62053-21 standard.

The R transparent PC material molded short terminal cover is beneficial for reducing installation space and facilitating centralized installation. A