Keypad single-phase prepayment electricity meter

Product Description

Keypad single-phase prepayment electricity meter, designed for ordinary residential customers.
-Keypad based single phase prepayment electricity meter
**0 digits standard transfer specification(STS)
-Programmable low credit warning
-High reliability and easy to handle
-Tamper detectio
-Communication port
Technical data

General
-Voltage: **0V/**0V(±*0%)
-Rated current: *0(**0)A
-Starting current: 0.4%Ib
-Frequency: *0Hz/*0Hz

Accuracy
-Reference ANSI C*2.***0.5

Display and recording
-Non-volatile memory EEPROM
*6 digits LCD display with back light

Communication
-Two UART ports, one is optical port, the other is for the 3rd party suppliers communication module.

Anti-tampering system
-The meter tampering features include measuring energy even if the meter is inverted and detecting when the meters is removed from a live socket.

Mechanical features
-Operate temperature: **0℃～**5℃
-Humidity: ≤*5%

Easy and secure data transfer
-Single or multi-tarrif meter with built-in real time clock(optional)
Credit data transfer from a point of sale(POS) or vending system is made via a number token in a *0 digits number using the Standard Transfer Specification(STS) encryption techniques, which comply with IEC****5 protocol.
-The token is entered into the meter via a keypad, optical port as alternative.