DDSY7999 Single -phase STS Key-pad Watt-hour KWH Meter

PRODUCT BRIEF INTRODUCTION
 
Single phase STS key-pad Watt-hour meter adopts the most advanced solid-state and integrated circuit technology featured in super low power loss and advanced SMT technology for measuring AC single-phase active power.The product complies with IEC 62053-21 “ Part 21, The Special Requirements for energy measuring equipment:Class 1.0 and Class 2.0 of Static AC Energy Meter” and other standards.
Communication protocol adopts IEC 62056-21 standard. The 20-bit code in STS algorithm is in accordance with the related standards stipulated in IEC 62055 standard transmission specifications (STS).

FUNCTION FEATURES
  • Record the total currently consumed active positive energy, but the reversal energy is also to be added positively into total energy. No need of recalibration for long term.
  • The key pad consists of the numbers from 0 to 9 plus Enter and Exit keys. A 30 ms' warning tone will sound when a key is pressed.
  • Buzzer alarm, low-credit alarm.
  • Hoarding proof, Over-load protection.
  • Prepaid function. The user will get a bunch of 20-bit charging token from the power utility after they have purchased power from there. They need put the token into the meter by key pad.
  • Expandable infra red and RS 485 communication.
  • Clear and reliable LCD display.
  • Adopts photoelectric-isolation energy pulse to output signals, which can be used to detect errors. The emitting diode indicates the energy consuming status.
MAIN TECHNICAL DATA

STS-ZD
STS-SC
OUTER AND MOUNT DIMENSION

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