DCEM-4MS Dual-channel DC energy meter is a highly integrated product for DC parameter measurement. When used with a shunt or external Hall sensor, it can accurately measure 1-2 channels DC voltages and 1-2 channels DC currents (with direction), power, total electricity, each single-circuit electricity, and other electrical parameters, and can be equipped with optional DI modules.
DCEM-4MS has RS485 and supports MODBUS-RTU communication protocol, which can upload the collected data and equipment status. DCEM-4MS is widely used in electric power, communications, railways, transportation, environmental protection, steel, and other industries to monitor the current and power consumption of DC equipment.
Function
- Measurement and calculation functions such as DC voltage, current, power, and forward and reverse electric energy.
- Multi-rate electric energy metering function
- Maximum demand measurement and demand time recording
- Maximum value record: single-phase voltage, current, power maximum and minimum values, and occurrence time
- Time-stamped event recording
- power freeze
- Supports RS485 interface MODBUS-RTU communication protocol, and one more RS485 port can be selected
- 2-way switch input monitoring, 2-way relay output (optional)
- Supports second DC voltage and current input (optional)
- Various anti-interference measures.
- Convenient and flexible system wiring.
- Easy to install, 35mm standard DIN rail installation.
- Powerful data collection and processing capabilities.
- Intuitive Large-size LCD screen real-time measurement information.
- High security and good reliability
A variety of anti-interference measures have been adopted during the design process to ensure stable operation in the power system environment. The electrostatic discharge immunity meets level 4; the electrical fast transient burst immunity meets level 4; the high voltage impact immunity meets level 4; the surge immunity meets level 3; the panel protection level meets IP54, and the shell protection level meets IP20.
| Performance |
Parameter |
| Enter Measurement Display |
Distribution network |
DC |
| Voltage |
Rating |
0-1000V |
| Overload |
Measurement: 1.2 times Instantaneous: 10 times/1s |
| Impedance |
>1 kΩ/V |
| |
Rating |
DC Shunt:0-75mV |
| current |
Hall current sensor:5A,20A,50A,100A,200A,300A,400A,500A optional |
| |
Overload |
Measurement: 1.2 times Instantaneous: 2 times/10s |
| |
Impedance |
<100mΩ |
| Accuracy level |
Class 1 or 0.5 |
| Clock (optional): |
The daily error is less than 0.5 seconds |
| Display |
Segment LCD display |
| Power supply |
range |
AC/DC85V~265V |
| power consumption |
≤4VA |
| Output |
Digital interface |
RS-485, MODBUS-RTU protocol (optional 2-Channels RS-458) |
| Pulse output |
Optional 1 channel active electric energy pulse output,1 channel second pulse output |
| DI input (optional) |
2 DI, dry contact mode |
| Ri<500Ω turns on, Ri>100kΩ turns off |
| DI output (optional) |
2 DO relay |
| relay contact capacity: 5A/250V AC; 5A/30V DC |
| Environment |
Working environment |
-25~55°C Altitude ≤2000m,98%RH, no condensation, no corrosive gas |
| Storage environment |
-30~75°C |
| Safety |
Withstand voltage |
Input and power supply>4kV; input and output>4kV.power supply and output>4Kv. |
| Insulation |
Power supply to shell > 5MΩ |
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