DSM11 Electronic RS485 Single-phase Energy Meter w

DSM11 Electronic RS485 Single-phase Energy Meter ( with relay ) Specifications and Parameters Related voltage 220V /120VBasic current 2.5(10)A 5(40)A 10(40)A 15(60)A 20(80)ARelated Frequency 50HzAccuracy class Class 1.0, 2.0Start current 0.4%lb(class 1.0) 0.5%lb(class 2.0)Potential With anti-potential logic designClock accuracy (day error)not more than 0.5S(23 celsius degree)Battery capacity ≥1000mAh Memory period after power failure ≥10 years(with a new battery) Memory period as replacing battery ≥1h Power consumption ≤2W/10VA(total consumption)Enviromental conditionstandard working temperature -20 celsius degree 55 celsius degree Limited working temperature -40 celsius degree 70 celsius degree Relative humidity ≤85% Weight about 0.6kgOutshape size 160mm×140mm×70mm Functions and Features Long-term active energy measurement without any calibration.Adopt LSI(large-scale IC)and SMT(surface mounting technology)which means advanced technology and simple structure.Characteristics of long Life and high reliability exist in every electronic component.LCD display with wide temperature scope,5 Integers & 1 Decimal,Meter reading and programming can be achieved with HHU or PC via 485 port or infrared ray.Sample the current on neutral line and phase line at the same time to prevent one-fire-one-ground electric larceny root and branch.Build-in magnetism-reserved relays can control the switch via 485 port or infrared ray.Power break indicator.Meter reading via infrared communication port.Energy test pulse output interface.Automatically switch calendar, time and leap year once set up at the first time (optional).Store historical consumption data (optional).