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 6-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), directly connected for use.

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

The R LED indicates the power status, power pulse signal, load current flow direction, current rate status, and data communication status.

Single directional measurement of single-phase two-wire 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.