DDSY395 Single phase keypad prepaid energy meter is a keypad type, automatically connection or disconnection prepaid  electricity meter. It can be top up with SanfranPay vending software directly and communicate with AMI system via LORA-RF or  PLC module. This meter is comply with STS standard, can be widely used for counting the electricity consumption of users over  a period of time. 

★ Meter recharge by inputting TOKEN 

★ Anti-tamper magnetic field protection 

★ Ingress protection IP54 waterproof 

★ MD(maximum demand measurement) 

★ Up to 8 years battery life 

★ Low credit alarm 

★ Remote connection/disconnection 

★ Overdraft collection 

★ Clock and multi-rate 

★ Check data by inputting the short code 

★ Real-time clock 

☆ LORA-RF communication 

★ Utilities can set TOU price into meter on request

★ Basic Features ☆ Extended features

Nominal Voltage:230V 

Working Voltage Range:70%~120%Un

Active Energy Constant:1000imp/kWh 

Power Consumption in Voltage Circuit:<2W <8VA 

Power Consumption in Current Circuit:<1VA 

Operation Temperature Range:-25℃ -70℃ 

Storage Temperature Range:-40℃ -85℃

AC Insulation Strength:4kV at 50Hz during 1min 

Impulse voltage 1.2/50 us mains connections:8kV 

Electrostatic Discharges:Contact discharge 8kV/Air discharge 16kV 

Electromagnetic RF Field:27MHz-500MHz 10V/m,100KHz-1GHz 30V/m 

Fast transient burst test:4kV 

Protection:Class II

Model:DDSY395 

Current(Imax):5(80)A 

Accuracy class:1.0