AMI Smart Meter Electric Digital Prepaid Electric Meter RF LoRa GPRS PLC STS

Product Specification

Single Phase STS Keypad Prepaid Meter with display

General introduction

1) Single Phase STS Keypad Prepaid Meter with display has the functions such as metering, monitoring, alarm, display, communication and load control, etc.

2) It adopts STS standard encryption algorithm to exchange the information based on TOKEN,

3) Advantages of the meter are high metering accuracy, high level security, strong compatibility, easy operation, etc.

Technical specifications

Main functions

• Support UIU
• TOU: Four tariffs; two sets of time zone tables; two sets of time period tables; support public holidays and weekends.
• Step tariffs
• Friendly power supply: Support emergency credit.
• Events logs: Detecting and recording events such as current reverse, magnetic influence, phase bypass, meter cover open, terminal cover open, overvoltage, under voltage, etc.
• Anti-tamper: Detecting current reverse, magnetic influence, phase bypass, meter cover open, terminal cover open etc., at the same time, the meter can disconnect power supply which is configurable when the tampers occur.
• Audio and visual alarm: Audio and visual alarm which can be configurable can be for power flow reverse, magnetic influence, phase bypass, meter cover open, terminal cover open, etc.
• Load control: Detecting the customer's load status, it can alarm or disconnect the load when overload.
• Communication interface: Optical port and RS485 interface are available;PLC,RF,GPRS and twist-wire interface are optional.
• UIU communication interface​: PLC, RF or twist-wire are optional.

Our advantages

R&D center is furnished with a special laboratory, and both of its inspection personnel and equipment are approved by the authority, and can independently complete all the test items specified both in China National Standards and International IEC Standards. Risesun lab has obtained CNAS Laboratory Accreditation Certificate.  

Q&A

Q: What are the main advanced features of smart energy meter?

A: (1) Appearance and structure unification: The type specification promulgated by State Grid Company makes specific requirements on smart energy meters' dimension and layout, and even the LCD display interface, which is convenient for detection, installation and maintenance.

2) Application function extension: Except traditional metering function, smart energy meter also carries out application extension on various functions, such as energy day freezing, historical energy data query, exception management, etc.

3) Communication protocol concretion: Via DLT/645-2007 The communication protocol of multifunction energy meter and its filling documents, it makes an elaboration on message formation, field definition, etc., which can ensure the compatibility among energy meters produced by different manufacturers.

4) Interface display diversity: On the LCD display of local IC card prepaid energy meter, in addition to seeing users' this month power consumption, it can also display various information including current tariff, by which users can judge current power consumption status.

5) Information exchange securitization: Compared with traditional energy meters, smart energy meters all have ESAM module, which carriers out encryption authentication to important information such as power purchase, control, etc.