The meter adopts high-accuracy metering module and high-performance management MCU to complete electric energy measuring and data processing, with Class 0.2S active power accuracy, of high-quality electromagnetic compatibility, strong disturbance resistance, artistic data display interface and other advantages, provided with high accuracy, high stability and high reliability, as well as the features as extension convenience, maintenance convenience and flexible communication modes, which realizes a metering accuracy unachievable by traditional metering chips through the adoption of multiple high accuracy metering schemes and metering algorithms under independent intellectual properties. The meter adopts hermetic construction and enclosure, suitable for the application under harsh conditions as alternating high and low temperature and hygrothermal environment.
Full Chinese characters dot matrix LCD display, menu operation interface, capable of graphical display of partial data; Large size and wide-angle LCD display, provided with rich status indicators and prompting symbol in Chinese characters, with backlight;
4 idle contactor electric energy impulse and LED electric energy impulse indicator output, alarm indicator output;
2 standard RS485 and 1 attachable infrared/far infrared communication interface, with mutually independent channels.
Time-of-use metering on forward and reverse active electric quantity, four-quadrant reactive electric quantity, combination 1 and combination 2 reactive electric quantity; combination mode: arbitrary combination for four-quadrant; the metering will be divided into forward and reverse active electric quantity and inductance-capacitance reactive electric quantity.
Time-of-use metering on forward and reverse active and reactive maximum demand quantity and time of occurrence.
Maximum 8 tariffs, primary and secondary time frames, dual-backup clock, automatic error correction, and maximum 13 months history recording.
Provided with settings for 6 types of data logging load curves, with a capacity up to 2MB (optional 4MB).
Measurement function: measurement of the phase voltage, current, apparent power, active power, reactive power, power factor, phase angle and frequency of A, B, C phases;
Loggings for voltage loss, full voltage loss, current loss, full current loss, voltage qualified rate, reset, demand reset, programming, timing, power on, over voltage, inverse phase sequence, cover opening and other events.
ual-backup data storage, provided with self-inspection and error correction functions, and fault alarm functions as internal card error, clock error, voltage inverse phase sequence, voltage loss, over voltage, current loss and battery under voltage.
Provided with cover opening detection function for electricity larceny prevention.
Capable of button-wakeup after blackout, and meter reading through LCD display;
AC/DC self-adaption auxiliary power supply, giving priority to auxiliary power supply after power-on;
Logging function of multiple freeze data, forming the graphic abnormal energy consumption analysis comprising of event logging, load curve and freeze data;
3 optocoupler blank nodes, optional separate output or 3 in 1 output pulse per second, demand interval or slip frequency time out, time frame switch;