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DC02ND series direct intelligent DC Energy Meter, designed for DC charging pile, photovoltaic power plant, energy storage system and other DC measurement scene. This series of watt-hour meter uses the integrated design of shunt and watt-hour meter, and provides optional split slave to meet the specific needs of double-circuit metering scenarios. In addition, this series of electric energy meter uses the guide rail type Installment Way, has the volume compact, the installment convenient characteristic. All series watt-hour meters support RS485 communication and are compatible with various protocols. They are good in overall metering accuracy and functional diversity, and meet the requirements of MID, CPA, Eichrecht and other certification and regulation requirements, it is an ideal choice to meet the requirements of high precision DC metering.
Functional characteristics
Rich metering functions: forward and reverse electric energy metering; support dual-loop metering
Accuracy Level 1
Multi-rate, multi-time: the product has 4-rate, 8-time by default
Flexible Communication Mode: support RS485 Communication, meet Modbus, DL/T645 -2007 protocol; support Ethernet communication
LCD screen backlight display: display voltage, current, electricity, power and other information; with automatic wheel display, the default interval of 5s
With self-diagnosis, alarm and security prevention functions
It has power compensation for line loss
An OCMF reading that conforms to the S.A.F.E standard
Compliance with Eichrecht regulations
Mid, CPA certification
Product specification parameters
Voltage input
|
Voltage connection |
Direct connection |
|
Rated voltage (UN) |
100V-1000V |
|
Voltage tolerance |
0.8 to 1.15 Un |
|
Input impedance |
40m ω |
Current input
|
Current version |
200A |
400A |
650A |
|
Current connection |
Direct connection |
Direct connection |
Direct connection |
|
Basic current (IB) |
40A |
80A |
120A |
|
Minimum Current (IMIN) |
2a |
4a |
6a |
|
Maximum current (IMAX) |
200A |
400A |
650A |
|
Startup current (IST) |
160 Ma |
320 Ma |
480 Ma |
Measurement accuracy
|
Parameter |
Precision |
|
Voltage |
± 0.5% |
|
Current |
± 0.5% |
|
Power |
± 1% |
|
Electricity |
Level 1 |
Auxiliary Power Supply
|
Voltage |
12-36V DC or 115-250V AC |
|
Power consumption |
≤2 W (no communication) |
Communication parameters
|
Communication |
RS485, Ethernet (host only) |
|
Protocol |
RS485 is compatible with Modbus RTU, DLT/645 -2007; Ethernet uses http-json, http-ocmf protocol |
|
Compatibility Check |
Compliance with OCMF verification, compatible with transparent software |
|
Communication type |
Two-way |
|
RS485 connection type |
Line 2 |
|
Type of network connection |
RJ45 |
|
RS485 configuration parameter |
Modbus addresses (1 through 247) Baud rate (Host: 9.6/19.2/38.4/57.6/76.8/115.2 KBPS) Baud rate (slave: 9.6/19.2/38.4/115.2 KBPS) Parity (none/odd/even) |
|
Refresh time |
≤100 ms |
Function parameters
|
Measuring function |
Shunt sampling; measuring DC power, current, voltage |
|
Measurement |
Absolute value measurement, forward and reverse measurement, double-loop measurement (optional) |
|
Rates |
Default 4 rates, 8 hours; daylight saving time can be set |
|
Self-diagnosis |
Store self-diagnostic |
|
Event alerts |
Over current, high temperature, magnetic field detection, low battery power, etc. |
|
Firmware upgrades |
Local upgrade, remote upgrade |
|
Clock |
Network automatic timing, temperature compensation |
|
Other features |
Line loss compensation function, shunt temperature real-time monitoring |
Normal parameters
|
LCD display |
8 + 2(lattice) |
|
LCD refresh time |
1s |
|
Led |
Green Light: main metering chip is normal Yellow: master and slave metering chips are normal Alternate Red and green: abnormal communication, red is always bright: excessive temperature, current, magnetic warning |
|
Key |
Turn the page |
|
IP level * |
IP20 |
|
Protection level |
Class II protection |
|
Rated pulse voltage |
6 kv |
|
Installation mode |
Guide rail (3.5 P) |
* Note: This product is required to be installed in the cabinet with IP54 protection (outdoor) or in the cabinet with IP51 protection (indoor)
Environmental specifications
|
Operating temperature |
-40 ° C ~ 70 ° C |
|
Storage temperature |
-40 ° C ~ 70 ° C |
|
Maximum humidity |
≤95% |
|
Altitude |
< 2,000 m |
Certification of standards and regulations
|
Compliance |
IEC 62052-11:2020 IEC 62052-31:2015 IEC 62053-41:2021 JJF 1779-2019 GBT 33708-2017 static DC watt-hour meter |
|
Compliance |
Eichrecht regulation in Germany |
|
Product certification |
Mid, PTB, CPA |
