SMD220-Mbus, The energy-meters “with a blue back-lighted LCD screen for prefect reading” are used to measure single-phase like residential, Utility and Industrial application. The unit measures and displays various important electrical parameters, and provide a communication port for remote reading and monitoring. Bi-directional energy measurement makes the unit a good choice for solar PV energy metering.
Two pulse outputs
Imp & Exp bi-directional measure
2 DIN module
Self power supply
Up to 80A load
-AC Voltage Withstand
-Impulse Voltage Withstand
4KV for 1 minutes
Basic Current (Ib)
Maximum Rated Current (Imax)
Operational Current Range
Over Current Withstand
20Imax for 0.01s
Operational Frequency Range
Internal Power Consumption
Stepper motor counter
Voltage 0.5% of range maximum
Current 0.5% of nominal
Frequency 0.2% of mid-frequency
Power factor 1% of Unity
Active power 1% of range maximum
Reactive power 1% of range maximum
Apparent power 1% of range maximum
Active energy Class 1 IEC62053-21
Class B EN50470-3
Reactive energy 1% of range maximum
Operating temperature -25℃ to +55℃
Storage and transportation temperature -40℃ to +70℃
Reference temperature 23℃±2℃
Relative humidity 0 to 95%, non-condensing
Altitude up to 2500m
Warm up time 10s
Installation category CAT II
Mechanical Environment M1
Electromagnetic environment E2
Degree of pollution 2
The meter provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total / import/export kWh or kVarh.
The pulse constant can be set to generate 1 pulse per: 0.001(default) /0.01/0.1/1kWh/kVarh.
Pulse width: 200/100/60ms
Pulse output 2 is non-configurable. It is fixed up with import kwh. The constant is 1000imp/kWh.
The meter provides a M-bus port for remote communication. M-bus protocol is applied.