MA309M Smart Three Phase Meter

Measurement3P4W

IImport / export active and reactive energy(by quadrant or +R&-R)
Instantaneous voltage and current, power, PF, Vrms, Irms, Frequency
Demand and maximum demand with programmable integration period supporting both Block and Slide mode, support demand per rate.
Support both arithmetic and absolute metrology method

Power Quality Monitoring

Billing Data& TOU

Profiles For Load Profile And Power Quality

Up to 70 programmable channels(maximum 128 byte) for energy load profile and programmable capture period (5, 10, 15, 30, 60, 1440min). Store up to 60 days profiles when the capture period is 15min.
Up to 70 programmable channels(maximum 128 byte) and store up to 75 days for daily load profiles.
Up to 70 programmable channels(maximum 128 byte) for power quality profile and programmable capture period (5, 10, 15, 30, 60, 1440min). Store up to 14 days profile when the capture period is 10min.

Real Time Clock

IEC 62054-21 0.5s/day at 23℃.
Remote & Local synchronization; Gregorian calendar supported
Optional super capacitor, optional internal battery, and optional external replaceable battery as the backup energy

Communication Interface

Local: Optical interface, IEC 62056-21
Customer interface : Optional RS485 port, optional end consumer interface (P1 or HAN port with contact RJ11)
WAN: Support 4G+2G/Cat-M communication module; Optional last gasp for Cellular module
Aux-terminal: Up to 2 pcs auxiliary relays (230V, 2A)，up to 4 pcs electric pulse output, optional wired M-bus, optional wireless M-bus, optional measurement output

Display

Segment type LCD; battery status/communication status/relay status indication
Display without power(optional)
LED for active and reactive energy pulse output; LED for communication module status

Anti-tamper feature

More than 10 alarms, such as current reversal detection and face/terminal/module cover open detection (even in power outage status)/Magnetic field detection/Communication module remove
Sealing protection in meter face cover, terminal cover, communication module cover and external battery cover

Events & Alarms

Customizable event list. Up to 200 event records with timestamp and capture objects for each event type; The events include Standard event log, Fraud attempt event log, Disconnect or control log, Power quality event log, Long Power Failure Event Log, Short Power Failure Event Log, Limiter Threshold Modify Event Log and Communication event log.
Support configurable alarm or event push

Load Control& Security