Three Phase Four (Three) Wires Multi-tariff Electrical Energy Meter Major Technical Data: Name of product: Three Phase Four (Three) Wires Multi-tariff Electrical Energy Meter Type: DTSF318 DSSF318 Accuracy class: 1.0 Power consumption : < 9VA Rate voltage: 3*57.7/100V 3*220/380V 3*100V Rate current: 1.5(6) A 10(50) A Application: Three Phase Four (Three) Wires Multi-tariff Electronic Energy Meter is co-developed by Defense Science and Technology Institute of China and us. The consumed energy can be measured with different time periods for different tariffs. Main functions: 1. Measurement of 50HZ for three phase active power. 2. Four tariffs and 10 time periods for user抯 option 3. RS 485 communication functions 4. Manual and remote control program and remote-metering function 5. To record the parameters automatically through CMRI Salient Features: 1. High accuracy: 1.0 class 2. High reliability: long operating life 3. Low power consumption, tamper proof, light weight, small size and easy to install. 4. SMT technology and re-flow soldering technology is adopted. Meter has strong capability for disturbance. EMC can comply with requirement of IEC 61036-2000. 5. Tamper-proof meter box can be supplied for easy installation.