Stron Smart STS Remote Prepaid single phase keypad electricity
meter
STE18-A is a STS (standard transfer specification) compliant,
keypad type, prepaid electricity meter that can automatically turn
on or shut off depending on the credit remains. It can be top up
with our own vending system developed by Stron’s eminent R&D
team, Stronpay vending software directly and communicate with
automatic metering infrastructure(AMI) system via LORA-RF or PLC
module.
With IP54 waterproof ingress protection rating, the electricity
meter can be installed in house or even pole outside where away
from users. The STE18-A’s insert programming support remote
connection and disconnection, when there is no credit remain, the
meter will shut off immediately and once recharged through
corresponding 20 digits TOKEN and press enter button, the
electricity meter would switch on. If real time clock chip and
battery applied, the meter can show your local time as well,
generally the battery life span is about 8 years and easy to
replace. Utilities or electricity companies can set Time of
Use(TOU) tariff price as request, e.g. during one time interval it
charges 1 USD for 1 Kwh and another 2 USD etc. which can help
utilities and companies take reasonable and profitable manage and
control on the meters and power consumption.
The communication we prefer apply Lora-RF together with Stron Data
Concentrator, which can collect Lora-RF signal in about 1km for up
to 300 pcs electricity meters and send the data to main server
through GPRS, so that a local Sim card is needed, and the data
consumption is no more than 1 mb each day, nearly no worry about
it.
Main Features
20 digit (Standard Transfer Specification) STS encryption
Detection of significant reverse energy (SRE)
IEC62056-21 compliant port allowing for easy data interrogation
Disconnects on overload and no credit
Dual power source working on both prepaid and credit mode
Programmable load limit and low credit warning
Detection and record tamper event such as cover open, reversal,
black-out, etc.
Easy access to 12 months historical consumption data and last 5
token entered
User Benefit
Easy connection to User Interface Unit (UIU) for split type
applications
PLC/ RF / GPRS wireless communication with a head-end AMR/AMI
server
Time of Use (TOU), multi-tariff, holiday setting.
Advanced load control and disconnection features
Features
- STS Standard
- Up to 8 years battery life
- Remote connection/disconnection
- IP54 waterproof
- Real-time clock
- Time of Use price
- Anti-tamper
- Lora-RF communication
- Mobile Payment
- ISO 9001; ISO 14001 compliant
Key benefits
Meter Recharge: By inputting 20 digits Token.
Low Credit Alarm: Alarm value can be set by inputting corresponding
TOKEN.
TOU tariff: Meters can be set Step Tariff by inputting
corresponding TOKEN. Utilities can set step price on request.
Anti-Tamper Functions: Meter will automatically shut off after
detection of terminal cover open event.
Information Inquiry: Consumer could check the data like Credit
Remain, Total Purchased and Total Credit by input the short code.
Electrical Parameters
| Nominal Voltage | 230V |
| Working Voltage Range | 70%~120%Un |
| Nominal Frequency | 50-60Hz |
| Basic Current (Ib) | 5A |
| Maximum Current (Imax) | 80A |
| Starting Current (Ist) | 20mA |
| Active Energy Constant | 1000imp/kWh |
| Measurement Accuracy | Class 1.0 |
| 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 |
