keypad type sts standard prepaid three phase smart electric meter
with LORA-RF module
STE38-A is a STS Standard compliant, keypad type, prepayment mode 3
phase 4 wires energy meter. It has Ingress protection IP54 waterproof, long life time Lithum battery. Customer purchases energy by the vending network to get a serial
number (TOKEN), and then use the keypad of meter to enter the
TOKEN, which contains 20 digits and is encrypted. The credit data
will be entered into the meter after the TOKEN being accepted.
Stronpay vending software can easily integrated with local Mobile
Money Payment Platform via API, like M-PESA, Alipay, MTN, Airtel,
etc. People can recharge the meter with mobile phone without
leaving their house.
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
➯Measurement 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℃
Electric 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 |
| Protection | Class II |
Meter Dimension
Basic Functionality:
| Function | Details |
| 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. |
| Self-testing | Meter has a self-test function, it can test LCD and relay etc. and
report the results directly. |
| Anti-tamper | 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 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. |
Liquid Crystal Display
Two ways to recharge prepaid electricity meter
1. By Stronpay vending Software
Stronpay Vending Software is a STS standard encryption vending
management system, it has three different versions can be choose:
Web based version, Stand alone version and Hand held mobile vending
unit. It consists of Stronpay management server(CMS) and Stronpay
management Client(CMC).
CMC provides administrative operations, such as customer and meter
registration, vending, report. It can be run on an independent
device in form of standalone software. Multiple clients can be
connected to a single management server(CMS). CMC also allows
multiple operators and access to system which is configured by the
administrator.
➯ Via local sales point or handheld mobile vending unit
Vending Process
1. Login the web-based vending website by inputting the user name,
company name and password.
2. Register the meter number and customer information at the
library center.
3. Set the price for different customers
4. Open an account to combine the meter,customer and price
information
5. Get the Token at the Top up center.
6. Input the Token with keypad.
7. Recharging completely.
2. By the third party platform or local mobile payment with API
➪ Via mobile phone
API: Application Program Interface, which is the agreement
connecting the third party APP and our Stronpay vending software.
The advantages to recharge with mobile payment:
✽ Users can top up electricity by mobile money without leaving the
house.
✽ Users could check information by their telephone.
✽ It helps utilities for Revenue protection and consumer
3. By the AMI System➪ Recharge remotely via DCU and LORA-RF or PLC module
