STE18-D operates with a35 mm Din Rail mounting and pole mounting accessories, consists of two parts. A customer interface unit (CIU), and a metering and control unit (MCU). A CIU is a keypad based display, to be installed within consumers homes wherever there is a plug point. A MCU is the main meter, installed away from consumer's home in a kiosk, meter box or a pole-mounted enclosure. MCU communicates with CIU via wireless communication such as Power Line Carrier (PLC), Radio Frequency(RF), LORA or 2-wires.This non-wired setup allows for easy inspection by utility and service providers at any time without visiting consumers' houses and reduces the chance of fraud by tampering.

Technical Parameters

Electrical Parameters

Nominal Voltage 230V

Working Voltage Range 70%~120%Un

Nominal Frequency50-60Hz

Basic Current (Ib)5A

Maximum Current (Imax)80A

Starting Current (Ist)20mA

Active Energy Constant1000imp/kWh

Measurement Accuracy Class 1.0

Power Consumption in Voltage Circuit<2W <8VA

Power Consumption in Current Circuit <1VA

Operation Temperature Range -25°C-70°C

Storage Temperature Range-40°C-85°C

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 discharge16kV

Electromagnetic RF Field 27MHz-500MHz 10V/m

100KHz-1GHz30V/m

Fast transient burst test 4kV

Mechanical requirements

Meter shell Water proof protection Rate IP54

Protection Class II

How Pay as you go (prepayment) Works

1. The customer makes payment with mobile money or cash
2. The customer receives a recharge code on his cell phone via SMS
3. The customer enters the code on the keypad of the product
4. The product is unlocked and can be used for a period of time accordingly.

Basic Functionality

Function Details

Prepayment STS Standard, recharge by input 20digits TOKEN, Trip on no credit or preset balance level

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, purchaseevent and TOKENS.

Self-testing Meter has a self-test function, it can test LCD and relay etc. and report the results directly

Anti-fraud features Meter will automatically close the valve after detection of magnetic field and open cover event

TOU Tariff TOU Tariff can be set by inputting corresponding TOKEN

Overdraft Collection Electricity Overdraft can be collected day by day or month by month

Communication The meter is available with AMI system through LORARF or PLC on request

Information Inquiry Consumer could check the data like Credit Remain, Total Purchased and Total Credit by input the short code

Stron Smart Support Team Info@stronsmart.com

Stron Smart Website:www.stronsmart.com

Founded in 2007, Hunan Stron Smart Co., Ltd is the leading supplier of smart meters in China. There are 500 employees in our company including 100 technical engineers, and 100 people with professional title. We are devoting ourselves to be the intelligent product service provider.

In China, we have more than 10 million meters running in State Grid of China, which is the biggest utility in the world. All these meters are performing very well. Our production capacity is 8million smart meters per year. And a workshop only working for overseas’ order to guarantee the delivery time and quality control.

Stron owns a strong technical team comprised of industry professional engineers and eminent experts and has applied for over 100 patents and intellectual property rights, and a number of its products and technologies have won the national, provincial and municipal awards.