Product Name: Ddsy5558 Single Phase Prepaid Digital Electricity Meter Model NO.: DDSY5558 Certification: CE Model: Ddsy5558 Accuracy Class: 1.0 or 2.0s Phase: Single Phase Color: Silver . Trademark: KASAN. OEM Transport Package: Export Carton with Inner Box Specification: CE Origin: Zhejiang China Product Description Specifications1.Prepaid electricity meter IEC 610362.Intelligent control;3.Data readback;4.Up card features;5.Data encryption1. GeneralDDSY5558 Single phase Prepaid electricity meter complies with IEC 61036. The meter adopts micro-electronic technology, has high precision, low power consumption.Depends on adopting large-scale integration (LSI) and surface mounting technology (SMT) as well, by using famous international brand components, it has high reliability and long service life. The meter uses fire-resistant ABS, the structure of the meter is air-proofed, data operation by advanced single-chip processing system.The meter will remind the user to purchase the electricity by alarm when the electricity remained is limited, and cut off the power supply automatically when the electricity use up. It's also able to limit maximal consuming power, anti-tamper function is optional. Each meter match with one memory card, and the meter can exchange the data with card bi-directionally through the card read device. User won't lose electricity even he lost the user card, because a renewed card is acceptable.2. SpecificationRated Voltage120V, 220V, 230V, 240VReference frequency50Hz or 60HzBasic Current (MaximumCurrent)A5(20) 10(40) 10(60)A20(80) 30(100)3. Technical dataApplicable StandardIEC 61036-2000Service Lifetime10 yearsAccuracy ClassClass1, Class2Working Temperature-10°C~+75°CStarting currentClass 1=0.004Ib; Class 2=0.005Ib.Working Voltage Range0.7~1.2UnPower consumption=2W,5VAOver voltage protection6kVRelative humidity=95%4. Functions1Energy display by LCD2Limit maximal consuming power3Automatic switch off power when overload4Warning when electricity insufficiency5Cut off the power when electricity use up6Pulse outputOperation indicated by pulse LED Optional function: Anti-tamper function The DDSY5558 withanti-tamper function has extend terminal cover, anti-tamper measurement chipset AD7751 instead of AD7755, and have extra one current transformer except shunt, so there is two measurement loops and the meter will measure energy consumption correctly even current is reversed, details of four situations as following.