Main Documents
Description
PMC-350-C Three-Phase LoRaWAN DIN Energy Meter
Device Introduction
- PMC-350-C 3-Phase DIN Energy Meter is CET’s latest offer for the wireless IoT energy metering market using the LoRaWAN technology for its Long-Range wireless communication capability. Housed in a standard DIN form factor measuring 72x70x95mm, it is perfectly suited for extremely space restricting environment. With a standard RS-485 port and Modbus RTU protocol support, IEC 62053-22 Class 0.5S and IEC 62053-21 Class 1 compliance for 5A Input and SCCT/SCCTA Input respectively as well as optional support for LoRaWAN AS923-1/2/3/4, KR920, AU915 or EU868, it becomes a vital component of an intelligent, distributed and IoT based EMS.
- The PMC-350-C optionally provides 4xDI for Status Monitoring, 2xRO for Control and Alarming or 2xSS Pulse Output for Energy Pulsing as well as 2 or 4xRTD and 1xIresidual Input for Temperature and Leakage Current measurements, respectively.
Product Highlight
- Three-Phase LoRaWAN Energy Meter
- IEC62053-22 Class 0.5S, IEC62053-21 Class 1 Compliant
- 35mm DIN Rail, 72x70x95mm
- B&W LCD Display
- Harmonics, Demands & TOU, Max/Min Log, Energy Log, Freeze Log, Data Log and Event Log
- Modbus RTU, LoRaWAN Class A/C at AS923/KR920 ISM Bands
- 1xRS-485
- Optional 4xDI, 2xDO, 4xRTD, 1xIr, 2xSS Pulse Output
Typical Application
- Industrial, Commercial and Utility Substation Metering
- Building, Factory and Process Automation
- Sub-metering and Cost Allocation
- Energy Management and Power Quality Monitoring
- LoRaWAN Class A/C at AS923-1/2/3/4, KR920, AU915 or EU868
Related Products
PMC-220 Single-Phase Multifunction Meter
PMC-230 Single-Phase Multifunction Meter
PMC-340 Digital Three-Phase Energy Meter
Related Solutions
Specification
Technical Specification
Voltage Inputs(V1,V2,V3,VN) | ||
| Voltage (Un) | 277ULN/480ULL | |
| Range | 20-277V L-N/35-480V L-L | |
| Burden | <2W/phase | |
| Input Impedance | 5MΩ | |
| Permanent Overload | 750VAC L-L | |
| Frequency | 45-65Hz | |
Current Inputs(I11,I12,·I21,I22,·I31,I32) | ||
| SCCT Option | SCCTA Option | |
| Current (In) | 40mA | 2mA |
| Range | 0.15%-100%In | 0.1%-120%In |
| Starting Current | 0.15%In | 0.1%In |
| Burden | <0.25VA per phase | <0.25VA per phase |
| External SCCTs | 50A/40mA,100A/40mA, 200A/40mA,400A/40mA, 800A/40mA,1600A/40mA | 5A/2mA |
| Optional(In) | 5A | |
| Range | 5mA-6A | |
Power Supply(L+,N-) | ||
Standard | 95-250VAC/VDC ± 10%, 47-440 Hz | |
Optional | 95-480VAC/DC,±10%,47-440Hz | |
| Burden | <2W | |
| Overvoltage Category | OVC III up to 300ULN | |
Optional Digital Inputs(DI1,DI2,DI3,DI4,DIC) | ||
Type | Dry contact,24VDC internally wetted | |
Sampling | 1000Hz | |
Hysteresis | 1ms minimum | |
Optional Digital Outputs(DO11,DO12,DO21,DO22) | ||
Type | Form A Mechanical Relay | |
Loading | 5A@250VAC or 30VDC | |
Optional RTD Temperature Inputs(TC1,TC2,TC3,TC4) | ||
| RTD Type | 2-Wire PT100(sensor not included) | |
PT100 | -40-200°C | |
| Alarm Range | 45-140°C | |
| Optional Residual Current Inputs(·IR,IR) | ||
| Range | 20mA-2000mA | |
Optional Solid State Energy Pulse Output(E1+,E1-,E2+,E2-)Selectable kWh/kvarh | ||
Pulse Constant | 10/100/1000/3200 imp/kxh | |
Isolation | Optical | |
| Max.Load Voltage | 80V | |
| Max.Forward Current | 50mA | |
| Pulse Width | 80±20ms | |
| Communications | ||
| Protocol | Modbus RTU(Optional LoRaWAN support at AS923- /2/3/4/KR920/AU915/EU868) | |
| RS-485 Port(Standard) | 1 | |
| Baud Rate | 1200/2400/4800/9600/19200/38400bps | |
| LoRaWAN(Optional) | LoRaWANTM Specification 1.0.2 ClassA/C Compliance | |
| ISM Bands(Optional) | Applicable to the following regions: | |
| AS923-1 | Australia,NewZealand,Malaysia,HongKong, Singapore,Taiwan,Thailand,Cambodia,etc. | |
| AS923-2 | Vietnam,Indonesia | |
| AS923-3 | Denmark,Norway,SaudiArabia,etc. | |
| AS923-4 | Israel | |
| KR92 | South Korea | |
| AU915 | Australia,NewZealand,Argentina,Anguilla,Brazil | |
| EU868 | Europe,United Arab Emirates,etc. | |
Environmental Conditions | ||
Operating Temp. | -25 °C to + 70°C | |
Storage Temp. | -40 °C to + 85°C | |
Humidity | 5% to 95% non-condensing | |
Atmospheric Pressure | 70 kPa to 106 kPa | |
Pollution Degree | 2 | |
Mechanical Characteristics | ||
Mounting | DIN Rail or optional Panel Mount | |
Unit Dimensions | 72x70x95mm | |
| Panel Cutoutt | 78x67mm | |
IP Rating | IP30 | |
Features Summary | ||
Display (Backlit) | B&W (No Backlit) | |
Type of Measurement | ULN per Phase &Avg. ULL per Phase&Avg. Current per Phase &Avg. Neutral Current (Meas./Calc.) Frequency kW per Phase & Total kvar per Phase & Total kVA per Phase& Total PF per Phase& Total kWh lmport/Export kvarh Import/Export kVAh Total | |
Power Quality | THD Voltage & Current TOHD Voltage & Current TEHD Voltage & Current 2nd-31st Harmonics K-Factor Voltage/Current Unbalance | |
Battery-backed Real-time Clock | √ | |
Demands | Present , Predicted Demands and Max.Demands for This Month & Last Month | |
Multi-Tariff TOU capability | Two TOU schedules, each providing: 12 Seasons 90 Holidays 20 Daily Profiles, each with 12 Periods in 15-minute interval 8 Tariffs | |
| Setpoints | 10 Setpoints | |
Diagnostics | √ | |
Logs | ||
Max./Min.Log | This month & Last Month | |
| Monthly Energy Log | 12 months | |
Freeze Logs(Optional) | 60 Daily Freeze Logs, 36 Monthly Freeze Logs | |
Data Recorder(Optional) | 5 Data Recorders Max. Recording Depth @ 10000 records | |
SOE Log | 100 entries | |
On-board Log Memory | 4MB | |
Accuracy
| Parameters | Accuracy | Resolution |
|---|---|---|
| Voltage | SCCT/SCCTA: ±0.5% 5A CT Input: ±0.2% | 0.01V |
| Current | SCCT/SCCTA: ±0.5% 5A CT Input: ±0.2% | 0.001A |
| kW,kvar,kVA | SCCT/SCCTA: ±1% 5A CT Input: ±0.5% | 0.001kW/kvar/kVA |
| kWh,kVAh | SCCT/SCCTA: IEC62053-21:2020 Class1 5A CT Input: IEC62053-22:2020 Class0.5S | 0.01kXh |
| kvarh | SCCT/SCCTA: IEC62053-23:2020 Class2 IEC62053-24: 2020 Class1 5A CT Input: IEC62053-23:2020 Class2 IEC62053-24: 2020 Class0.5 | 0.01kvarh |
| PF | SCCT/SCCTA: ±1% 5A CT Input: ±0.5% | 0.001 |
| Frequency | ±0.02Hz | 0.01Hz |
| In(Cal.) | ±1.0% | 0.001A |
| THD | IEC61000-4-7 Class II | 0.001% |
| Residual | ±1.0% | 0.1mA |
| Temperature | ±1°C | 0.1°C |
Standards of Compliance
Safety Requirements | |
|---|---|
| CE LVD 2014/35/EU | EN 61010-1: 2010 EN 61010-2-030: 2010 |
| Electrical Safety in Low Voltage Distribution Systems up to 1000Vac and 1500Vdc | IEC 61557-12:2018(PMD) |
| Insulation AC Voltage: 2kV@1 minute Insulation Resistance: >100MΩ Impulse Voltage: 6kV,1.2/50µs | IEC 62052-31:2015 |
Electromagnetic Compatibility CE EMC Directive 2014/30/EU(EN 61326:2013) | |
Immunity Tests | |
| Electrostatic Discharge | EN 61000-4-2:2009 |
| Radiated Fields | EN 61000-4-3:2006+A1:2008+A2:2010 |
| Fast Transients | EN 61000-4-4:2012 |
| Surges | EN 61000-4-5:2014+A1:2017 |
| Conducted Disturbances | EN 61000-4-6:2014 |
| Magnetic Fields | EN 61000-4-8:2010 |
| Voltage Dips and Interruptions | EN 61000-4-11:2004+A1:2017 |
| Ring Waves | EN 61000-4-12:2017 |
Emission Tests | |
| Limits and Methods of Measurement of Electromagnetic Disturbance Characteristics of Industrial,Scientific and Medical(ISM) Radio-Frequency Equipment | EN 55011:2016 |
| Limits and Methods of measurement of Radio Disturbance Characteristics of Information Technology Equipment | EN 55032:2015 |
| Limits for Harmonic Current Emissions for Equipment with Rated Current≤16A | EN 61000-3-2:2014 |
| Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply Systems for Equipment with Rated Current≤16A | EN 61000-3-3:2013 |
| Emission Standard for Residential, Commercial and Light-Industrial Environments | EN 61000-6-4:2007+A1:2011 |
RED (Radio Equipment Directive) | |
| Assessment of Electronic and Electrical Equipment Related to Human Exposure Restrictions for Electromagnetic Fields (0Hz - 300 GHz) | EN/IEC 62311: 2020 |
| Short Range Devices (SRD) Operating in the Frequency Range 25 MHz to 1000MHz | ETSI EN 300 220-1 V3.1.1: 2017 ETSI EN 300 220-2 V3.1.1: 2017 |
| Audio/Video, Information and Communication Technology Equipment -Part 1: Safety Requirements | IEC 62368-1: 2018 |
Mechanical Tests | |
| Spring Hammer Test | IEC 62052-11:2003 |
| Vibration Test | IEC 62052-11:2003 |
| Shock Test | IEC 62052-11:2003 |
Wiring Mode
Wiring Mode | |
|---|---|
| 3P4W | 3P4W with 3CTs |
| 3P3W | 3P3W with 3CTs 3P3W with 2CTs |
| 1P3W | 1P3W with 2CTs |
| 1P2W L-N | 1P2W L-N with 1CT |
| 1P2W L-L | 1P2W L-L with 1CT |