DC02ND series direct intelligent DC energy meter

2025-01-09 14:00

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)