MT318 3P Whole Current Smart Meter
Introduction
MT318 three phase smart meter offers outstanding measurement and complex tariff capabilities for use in residential smart metering applications. The MT318 meter can operate as a standalone unit or as part of a comprehensive metering and MDM system.
Features
- WAN: LTE/3G/GPRS/G3-PLC replaceable module
- HAN: W-MBUS or MBUS communication to IHD
- DLMS/COSEM protocol
- Up to 8 comprehensive tariff structure
- Configurable flexible load profile
- Option prepayment function complies with STS protocol
- Internal clock and calendar with battery back-up
- High security design
- Anti-tamper and tampering detection
- Air-upgrade
Remote Comm.
Billing
Data Security
DLMS
Firmware Upgrade
Load Control
Load Profile
STS
Specifications
| Item | Sub-item | Value |
|---|---|---|
| Measurement | Active accuracy(kWh) | Class1 (IEC 62053-21) or Class B(EN50470) |
| Measurement | Reactive accuracy(kvarh) | Class2 (IEC 62053-23) |
| Measurement | Measuring and registration | - Import with reverse blocking.; - Import/Export.; - Absolute sum of both directions. |
| Voltage | Rated voltage(Un) | 3x230V/400V, 3x240V/415V |
| Voltage | Working voltage range | 0.5Un - 1.2Un |
| Current | Basic current(Ib) | 5A |
| Current | Max.current(Imax) | 100A |
| Current | Starting current | 0.004 Ib |
| Frequency | Rated frequency(fn) | 50Hz or 60Hz |
| Power Consumption | Voltage circuit | 2W/10 VA |
| Power Consumption | Current circuit | 0.5 VA |
| Environmental Influences | Operating temperature range | -40°C ~+70°C |
| Environmental Influences | Storage temperature | -40°C ~+80°C |
| Environmental Influences | Impermeability to IEC 60529 | IP54 indoor |
| Inputs and Outputs | Optical test output | - Active energy pulse LED.; - Alarm LED.; - Credit LED. |
| Inputs and Outputs | Meter constant | Out: 1000 imp/kWh |
| Display | Type | LCD liquid crystal display |
| Display | Backlit | With backlit |
| TOU | Time of use | - Up to 8 tariff.; - Up to 8 time span, 8 typical days, 12 typical weeks, 12 seasons.; - Up to 200 programmable national holiday and special holidays. |
| Time Clock & Calendar | Accuracy | 15 Seconds per Month at 23˚C |
| Time Clock & Calendar | Backup Time | 10 Years without Power (Lithium Battery) |
| Time Clock & Calendar | Daylight Saving Time | Option |
| Time Clock & Calendar | Battery | - 1 Internal battery for RTC.; - 1 replaceable external battery for power outage display. |
| Communication Interface | Optical Interface | Optical port IEC 62056-21.; Protocol: IEC62056-21 E mode. |
| Communication Interface | Serial Interface | RS485/W-Mbus/MBUS (option).; Protocol: DLMS HDLC. |
| Communication Interface | Remote Interface | 3G/GPRS/G3 PLC.; Protocol: DLMS TCP/IP. |
| Prepayment (option) | STS Token | Indicate token success, refuse, used, expired |
| Prepayment (option) | Emergency Credit | Short code active emergency credit |
| Prepayment (option) | Friendly time and days | Night time, weekends and holidays |
| Prepayment (option) | Balance Alarm | Two levels balance not enough alarm |
| Prepayment (option) | Load limit | Input power limit value threshold through TOKEN |
| Load Profile | Channels | Up to 24 channels |
| Load Profile | Integration period | 1,5,10,15,30,60 minutes |
| Load Profile | Storage | 100 Days (24 Channels, 30-Minute Intervals) |
| Load Profile | Capture object | - Demand(kW, kvar).; - Energy(kWh, kvarh).; - Instantaneous value(V, A, W, PF, Phase angle).; - Credit balance(kWh). |
| Billing & Max Demand | Storage | - 12 sets of energy billing data.; - 12 sets of Max Demand data |
| Billing & Max Demand | MD mode | Block mode or Slide mode |
| Billing & Max Demand | MD value | - Time and value of maximum demand.; - Value of cumulative Max Demand. |
| Antifraud protection | Events & Tamper detection | - Sag/Swell.; - Meter cover open detection.; - Terminal cover open detection.; - Magnetic field influence detection.; - Battery/clock/memory failure detection.; - Advanced tamper detection and logging.; - Pre-programmed alarms for meter self-check. |
| Antifraud protection | Anti-Tamper | Anti 0.5T Magnetic influence |
| Air-upgrade | Air-upgrade | Local/remote firmware upgrade |
| Terminal cover | Standard | Up to 60 mm free space |
| Weight and dimensions | Dimensions | 290mm(H) x 170mm(W) x 82mm(D) |
| Weight and dimensions | Weight | approx. 1.8 kg |