Manufacturer of meter cover open detecting - Smart Keypad base Three Phase Prepaid Meter LY-SM350 – linyang

Key Specifications

Electrical Parameter
● Connection Type: 3P4W
● Nominal Voltage: 3×220/380V, 3x230V/400V, 3×240/415V, ±30%
● Nominal Current: 5A, 10A, 20A
● Frequency: 50/60 Hz ± 1%
● Dimension: 285 x 173.5 x 93.5 LWH (mm)

Communication
● Local Communication: Optical Port, RS485, M-BUS
● CIU Communication: PLC/RF/M-BUS
● Remote Communication: PLC/RF/GPRS/2G/3G/4G/NB-IoT

Key Functions
● Tariffs: 4
● Anti-Tampering: Magnetic Field, Bypass, Meter/Terminal Cover open, Reverse Energy, Missing Phase or/and Neutral
● Billing Periods: 12 months
● Event Log
● Load Control: Power Thresholds, Over/Under Voltage (Configurable)
● Load Profile
● Measuring Values: kWh, kvah
● Instantaneous Parameters: kW, kvar V, I, kva, F, PF
● Multi-Utility: Gas/Water/Heat

Key Features

● Configured in Prepaid with keypad/card or Postpaid mode
● Bi-directional measurement
● 4-quadrant measurement
● Neutral measurement
● Neutral line missing measurement
● Internal Relay
● Dual-disconnect relay
● Neutral line connected relay
● Internal or replaceable battery as optional
● Power quality management
● Demand monitoring
● Remote upgrade
● Real Time Clock
● TOU
● Plug-and-play communication module with PLC/RF/GPRS/2G/3G/4G/NB-IoT
● Anti-Tampering: Magnetic Field, Bypass, Meter/Terminal Cover open, Reverse Energy, Missing Phase or/and Neutral

ANTI-TAMPER

INTEROPERABILITY

MULTI-UTILITY METERING

MODULAR COMMUNICATION

LOAD CONTROL

POSTPAID/PREPAID

DUAL DISCONNECT

STS COMPLIAN

Protocol & Standards

● IEC 62052-11
● IEC 62053-21/23
● EN 50470-1/3
● IEC 62056
● IEC 62055-31/41/51, etc

Certificates

● IEC
● DLMS
● STS
● IDIS
● PRIME
● MID
● SABS
● G3-PLC
● SGS