DDSF149 单相静止式多费率电能表

Single Phase Static Multi-rate Meter DDSF149 
Measurement
1、measurement of electric energy flowing in two directions,data storage and set to a combination.
2、Time of use, up to 4 rates
3、Instantaneous measurement
Anti-tamper function
1、protection meter against strong magnetic field
2、cover open detection
3、reverse connection detection
Event record
1、reset
2、program history latest 1 times
3、record of clock setting
4、record of time setting
5、reverse power event record
Liquid crystal display
Store billing energy value with sum and rate latest 12 months
RS485, optical communication
Baidu
sogou