- The DRS-205C is single phase kWh meters with a LCD display in a 1 modules (18mm) casing, ensuring a high accuracy class (Class1), a very low starting current which makes it exceptionally suited for photovoltaic energy systems and general use.
- Excellent long term stability which is designed for DIN, IEN and EN standards and 5 years of warranty.
- MID B&D approval which ensures the meter is produced to the highest European and International standards and the meter legally suited for business and invoicing purposes.
- For connection rate up to 45A.
- RS485 communication; With communication port comply to MODBUS/M-bus RTU communication protocol; Communication baud rate can be set 1200,2400,4800,9600(option)
- 2 Tariffs
- Specifications: Meter type: DRS-205C (LCD display)
Nominal voltage (Un) :230V AC
Operational voltage :(-15% ～ +10%)Un
Insulation capabilities:- AC voltage withstand 2KV for 1 minute
– Impulse voltage withstand 6KV – 1.2µS waveform
Basic current (Ib) 5A
Maximum rated current (Imax) 45A
Operational current range 0.4% Ib- Imax
Over current withstand 30Imax for 0.01s
Operational frequency range 50Hz ±10%
Internal power consumption ≤2W / 10VA
Test output flash rate (RED LED) 1000 or 2000imp/kWh
Pulse output rate (pins 20 & 21) 1000 or 2000imp/kWh
Consumption indicator (RED LED) Flashing at load running
- Basic errors: 0.05Ib Cosφ = 1 ±1.5%
0.1Ib Cosφ = 0.5L ±1.5%
Cosφ = 0.8C ±1.5%
0.1Ib – Imax Cosφ = 1 ±1.0%
0.2Ib – Imax Cosφ = 0.5L ±1.0%
Cosφ = 0.8C ±1.0%
- The communication function: RS485 communication specifications:
Bus type: RS485
protocol: MODBUS RTU with 16 bit CRC
baud rate :1200,2400,4800,9600
Address range :1-255 user settable
Bus Loading :64 meters per bus
Rage: 1000m
M-bus communication specifications
Bus type :M-bus
baud rate: 2400 (default)、4800, 9600
Range: ≤1000m 64PCS*
Downlink signal: Master to slave，Voltage modulation
Uplink signal: Slave to master，Current modulation
Cable: JYSTY （n×2×0.8）
Protocol :EN13757-3
Max. number of meters :64*
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