Main Documents
Description
iMeter D7 Advanced Power Quality Monitor
Device Introduction
- iMeter D7 is CET’s Advanced DIN-Rail Mount PQ Analyzer designed for the compliance monitoring market as it offers un-surpassed functionality by combining Class 0.2S accuracy and advanced PQ features in a compact 145*124*77mm housing with a High-Resolution, IPS Color Dot-Matrix Display. The iMeter D7 complies with such standards as IEC62053-22 Class 0.2S, IEC61000-4-30 Ed.3 Class A, IEC61000-4-15, IEC61000-4-7, EN50160, IEEE Std 519-2022 as well as IEC61850 for Substation Automation.Further, it offers a large logging capacity with 4GB of on-board memory, extensive I/O, multiple Time Sync. methods, 2x100BaseT Ethernet and 1xRS-485 ports. In addition, it optionally supports wireless connection, 2xAI for measuring external transducer signal or 1xIresidual Input & 1xRTD for Leakage Current and Temperature Measurements. These features likely make the iMeter D7 the most advanced DIN-Rail PQ Analyzer for an intelligent Power QualityMonitoring System.
Product Highlight
- IEC 62053-22 Class 0.2S, IEC61000-4-30 Ed. 3.1 Class A Certified
- 35mm DIN Rail Mount (145x124x77mm)
- Colour IPS Dot-Matrix Display
- Harmonics, Demands & TOU, PQ Log, Energy Log, Max/Min Log, Waveform Log and Event Log
- 4GB On-board Memory
- 2-150kHz Conducted Emission, MQTT
- Modbus RTU, Modbus TCP, HTTPS, SNTP, SMTPS, FTP, IEEE1588 (PTP), IPSecVPN, MQTT, Ethernet Gateway, IEC61850
- 2xEthernet, 1xRS-485, Optional built-in 4G modem
- 4xDI, Optional 3xDO, 3xSS, 2xAI, 1xIr, 1xRTD
Typical Application
- PQ monitoring at LV Utility Substations
- Data Centers, Semiconductor Fabs, Heavy Industries
- 7x24 Automated Manufacturing Facilities
- Mains and Critical Feeder Monitoring
- Renewable Energy Applications
- Dips, Swells, Interruptions, Transients, Flickers and Harmonics monitoring
- IEC 61850 support for Substation Automation and Smart Grid
- Retrofit applications with optional Class 1 Split-Core Current Probes
Related Products
iMeter 5 Advanced Power Quality Monitor
iMeter 6 Advanced Power Quality Monitor
iMeter 7A Advanced Power Quality Monitor
iMeter 8 Advanced Power Quality Monitor
Specification
Technical Specification
VoltageInputs(V1,V2,V3,VN,V4,V4N) **** | |
| Standard Un | 400VLN/690VLL+20% |
| Range | 5V to 2Un for 400VLN nominal |
| Overload | 2xUn continuous,4xUn for 1s |
| Burden | <0.5VA/per phase |
| PT Ratio Primary Secondary V4 Primary V4 Secondary | 1 to 1,000,000 1 to 1,500 1 to 1,000,000 1 to 1,500 |
| Measurement Category | CAT III 1000V |
| Frequency | 40Hz-60Hz@50Hz,48Hz-72Hz@60Hz |
Current Inputs(·I11,I12,·I21,I22,·I31,I32,·I41,I42) | |
| Standard In | 5A(Standard),1A(Optional) |
| Range | 1% to 400% In |
| Starting Current | 0.1% In |
| Overload | 4xIn continuous,10xIn for 1s |
| Burden | <0.5VA/per phase @ 5A <0.1VA/per phase @ 1A |
| CT Ratio Primary Secondary I4 Primary I4 Secondary | 1 to 30,000 1 to 50 1 to 30,000 1 to 50 |
| SCCP Options SCCP-50A-500mV SCCP-200A-200mV SCCP-500A-500mV SCCP-5000-500mV | Split-Core Current Probe Input @ max. 500mV 5A/50A (In/Imax), max. 500mV Output 20A/200A (In/Imax), max. 200mV Output 500A Imax, max. 500mV Output Selectable 500A/5000A (Imax) Rogowski Coil, max. 500mV Output |
SCCT Options | PMC-SCCT-100A-40mA-16-A, Ø=16mm, Class 0.5 PMC-SCCT-200A-40mA-24-A, Ø=24mm, Class 0.5 PMC-SCCT-400A-40mA-35-A, Ø=35mm, Class 0.5 PMC-SCCT-800A-40mA-A, 80x50mm, Class 0.5 PMC-SCCT-1600A-40mA-A, 130x55mm, Class 0.5 |
SCCTA Option | PMC-SCCT-5A-2mA-16-A,Ø=16mm, Class 1 |
Power Supply(L+,N-) | |
Standard | 95-250VAC/VDC ± 10%, 47-440 Hz |
Optional | 20-60VDC |
| Burden | < 14VA/10W @ 250VAC/DC <6W @ 24VDC |
| Overvoltage Category | OVC III 300V |
Digital Inputs(DIC,DI1,DI2,DI3,DI4,DIC2,DI5,DI6,DI7,DI8) | |
Type | Dry contact,24VDC internally wetted |
Sampling | 1000Hz |
Hysteresis | 1ms minimum |
Digital Outputs(DO11,DO12,DO21,DO22,DO31,DO32,DO41,DO42) | |
Type | Form A Mechanical Relay |
Loading | 5A@250VAC or 30VDC |
Alarm Output(Alarm) | |
Loading | 5A @ 250VAC or 30VDC |
Optional Solid State Pulse Outputs(E1+,E1-,E2+,E2-) | |
Type | Form A Solid State Relay |
Isolation | Optical ***** |
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 |
Altitude | <2000m |
Location/Mounting | For indoor use only |
Mechanical Characteristics | |
Panel Cutout | 92x92mm(3.62”x3.62”) |
Unit Dimensions | 96x96x88mm |
IP Rating | IP65 |
Communications | |
Protocol | Modbus RTU, BACnet MS/TP, Metasys N2 and DNP3.0 |
RS-485 Port | 1+(1 Opt.) |
Features Summary | |
Display (Backlit) | Dot-Matrix LCD (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 |
Diagnostics | √ |
Setpoints | 9 Setpoints |
Logs | |
Max./Min.Log | This month & Last Month |
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 Opt.) |
Accuracy
| Parameters | Accuracy | Resolution |
|---|---|---|
| Voltage | ±0.2% | 0.001V |
| Current | ±0.2% | 0.001A |
| I4(measurement) | ±0.2% | 0.001A |
| P,Q,S | ±0.5% | 0.001kx |
| kWh,kVAh | IEC 62053-22 Class 0.5S ANSI C12.20 Class 0.2 EN 50470-1/3:2006 Class C | 0.1kXh |
| kvarh | IEC 62053-24 Class 0.5S IEC 62053-23 Class 2 | 0.1kvarh |
| PF | ±0.5% | 0.001 |
| Frequency | ±0.02Hz | 0.01Hz |
| THD | IEC 61000-4-7 Class B | 0.001% |
| K-Factor | IEC 61000-4-7 Class B | 0.001 |
| Phase Angle | ±1° | 0.1° |
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 300 220-1V3.1.1: 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 | 3-Phase 4-Wire Wye Direct Connection with 3CTs 3-Phase 4-Wire Wye Direct Connection with 4CTs 3-Phase 4-Wire Wye with 3PTs and 3CTs 3-Phase 4-Wire Wye with 3PTs and 4CTs |
| 3P3W | 3-Phase 3-Wire Direct Delta Connection With 3CTs 3-Phase 3-Wire Direct Delta Connection with 2CTs 3-Phase 3-Wire Delta with 2PTs and 3CTs 3-Phase 3-Wire Delta with 2PTs and 2CTs |
| 1P3W | 1-Phase 3-Wire Direct Connection with 2CTs |
| 1P2W L-N | 1-Phase 2-Wire, Uln Direct Connection with 1CT |
| 1P2W L-L | 1-Phase 2-Wire, Ull Direct Connection with 1CT |