Sfere720 is equipped with electrical variable measurement, energy metering and power quality analysis functions. SFERE720 also can be extended with I/O modules for monitoring and controlling equipment at field, realizing system integration with different smart electricity distribution system and energy management system, and sharing monitoring data and energy data.
Electric Characteristics |
Accuracy | Voltage and current | 0.20% |
Power,Power Factor | 0.20% |
Frequency | ±0.01Hz |
Active power | IEC62053-22, class 0.2S |
Reactive power | IEC62053-23, class 2 |
Data update rate | 1s |
Input | Wiring mode | 1P2W,3P3W,3P4W |
Voltage | Rated value | 400 VAC L-N (690 VAC L-L) |
Overload | 1.2Vln |
Impedance | >1MΩ |
Current | Rated value | 1A or 5A |
Overload | Continuous: 1.2In |
Instantaneous: 10In/5s |
burden | <0.1VA |
Rated value | <20mΩ |
Grid frequency | (45~65)Hz |
Auxiliary supply | Working range | AC/DC(80~270)V |
consumption | ≤ 10VA |
Energy pulse output | 1 photocouple outputs, pulse width (80±20%) ms |
Digital input | AC220V input, isolation:2000VAC |
Relay output | Contact rated at AC 250V/5A or DC 30V/5A |
Isolation:2500VAC |
Communications |
RS485 port | Modbus-RTU , 2-wire,up to 38400bps |
Mechanical Characteristics |
IP index | IP65(front panel)and IP20(meter body) |
Dimensions | 96×96×55mm |
Environmental Characteristics |
Operating temperature | (-10~60)℃ |
Storage temperature | (-25~70)℃ |
Relative humidity | (5~95)% (no gel) |
Insulation | IEC 61010-1 |