STS Prepayment Keyboard 3 Phase Electricity Energy Meter Anti-tamper

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