MA309 Smart Three Phase Meter
u Plug-and-play with interchangeable module: PLC/RF/GPRS/3G.
u Compliant with DLMS/COSEM.
u Energy efficiency with advanced measurement with TOU.
u Disconnect/Reconnect.
u Read without power.
u Protect from fraud or tampering, alarm and events record.
u High security and reliability.
u Advanced design for operation costs reduction, friendly user interface.
Measurement
and power quality
ü
Import and export active / reactive /
apparent energy and demand; Configurable maximum demand integration period
(typically 5, 10, 15, 30 or 60 minutes); Instantaneous voltage and current, PF,
Vrms, Irms, Frequency
TOU
ü
The meter supports up to 4 tariffs, 2
sets of tariff scheme; The passive tariff scheme can be configured by remote or
local command
Load profile
for energy and power quality
ü
Up to 8 programmable channels for
energy and demand load profile; Up to 8 programmable channels for power quality
load profile; Programmable profiles period
( typically 1, 5, 10, 15, 30, 60 minutes )
Real time
clock
ü
IEC 62054-21 0.5s/day (@23℃); Remote and local synchronization available
Communication
interface
ü
Optical, 9600bps infrared; Plug-and-Play
module: PLC/RF/GPRS/3G; RS-485
Display and
indicators
ü
Segment LCD, 8 digits, number of
decimal configurable; Two LEDs indicate
active and reactive pulse; Three colors LED indicate different
communication status; Support reading (LCD display) without power
Connect /
Disconnect
ü
Latch relay for power control.
Backup power
supply
ü
Internal battery, support RTC at least
2 years without main power; External replaceable battery; Low battery alarm 6
months in advance of battery empty
Anti-tamper
features
ü
Phase current reverse; Current
unbalance (bypass); Phase voltage missing (current without voltage); Phase
sequence error; Main cover removal; Terminal cover removal; Strong DC magnetic
field; Meter dismantle/removal; Over temperature
Log file
ü
Up to 30 kinds of event record with
timestamp: Power off and power on; Low battery; Relay connection /
disconnection remotely and overload; Meter parameters programed; Tamper related
events; Power quality events (over voltage, under voltage etc. ); Firmware
upgrade event; Access records with both correct and incorrect password
Advanced
flexible platform design
ü
Flexible to support different
communication channels: PLC(G3-PLC/PRIME)/RF/GPRS/3G; Replace communication
module without turning off the meter ; Support DLMS / COSEM
Industrial standard data security and authentication mechanism