Hunan Stron Smart Co., Ltd
Stron Metering, Smart Life
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Function
Prepayment: STS Standard, recharge by input 20digits TOKEN
Low credit alarm: Alarm value can be set by inputting corresponding TOKEN
Prepaid and post-paid switch: Meter can be switch to prepaid mode or post-paid mode
Load control function: Meter can be programmed for load control threshold, If the current power is more than threshold. The meter will cut off user load.
Event recording: Meter can record the tamper event, open cover event, purchase event and TOKENS.
Anti-tamper: Meter will automatically close the valve after detection of magnetic field and open cover event
Communication: The meter is available with AMI system through LORA RF or Bluetooth 4.0 on request
Information Inquiry: Consumer could check the data like Credit Remain, Total Purchased and Total Credit by input the short code
Electrical Parameters
Nominal Voltage 3×230V
Working Voltage Range 70%~120%Un
Nominal Frequency 50-60Hz
Basic Current (Ib) 10A
Maximum Current (Imax) 100A
Starting Current (Ist) 30mA
Active Energy Constant 400imp/kWh
Active Energy Accuracy Class 1.0
Reactive Energy Accuracy Class 2.0
Power Consumption in Voltage Circuit <2W <8VA
Power Consumption in Current Circuit <1VA
Operation Temperature Range -25℃-70℃
Storage Temperature Range -40℃-85℃
Electro Magnetic Compatibility
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
Mechanical requirements
Meter shell Water proof protection Rate IP54
Protection Class II
