DDZY566-M/KP Single Phase Smart Keypad Prepayment Meter is a new generation of single phase smart prepayment meter with $TS prepayment functionality. It supports active & reactive energy measurement and instantaneous measurement, relay disconnection and reconnection management, With an optional plug-and-play PLC/RF/GPRS communication module and meter keypad, credit can be charged both remotely and locally. The meter can be used in sophisticated AMI & vending system.

Product Advantage:

• STS standard protocol ensures an open and secure operating system
• Optical port communication based on DLMS /COSEM protocol
• PLC/RF/GPRS plug-and-play communication module
• Internal relay for local load demand control (configurable) and remote communication control
• Prepayment and post-payment mode switchable for users’ convenience
• Remote firmware upgrade through PLC/RF /GPRS /RS485 (optional)

MAIN FUNCTION：

Measurement Unidirectional or Bi-directional Measurement Cumulative energy Record active & reactive energy(optional) in tariffs	Load Profile (optional) Up to 2 Megabytes of Non-Volatile memory Over 360 Days storage (2 channel, 30 minutes) Up to 8 channels Energy power, voltage, current,frequency & Etc.	Load Profile (optional) Up to 2 Megabytes of Non-Volatile memory Over 360 Days storage (2 channel, 30 minutes) Up to 8 channels Energy power, voltage, current,frequency & Etc.
Prepaid STS /CTS standard (optional) Emergency Credit Friendly mode Local and remote charge  Prepaid / Post- paid CIU (Customer interface unit) (optional)	Instantaneous Values Power, Voltage,Current Power Factor, Frequency, Phase Angles	Security 3 data access levels (lowest, LLS and HLS) Data access management for all ports Metrology data protection
RTC Clock accuracy(daily deviation):≤ 0.5s (23℃) Gregorian calendar DST (Daylight Saving Time) RWP(Read Without Power) Replaceable Lithium Batter(10 years support)	Anti-Tamper 4 Sealing positions (terminal,body) Meter & Terminal cover open detection Bypass/Reverse /Unbalance Current Strong magnetic field detection(optional)	Events & Alarms Load and Power grid events detection Under & Over voltage Power down Event date and time1000 event records Event & Alarm of tamper Low & Out of credit alarm Alarms indicator (LED &Buzzer)
Communication Optical port: EC62056-21 PLC/RF/GPRS/RS485	Display Large digit LCD display, backlight (optional) Scrolling display and key display configurable Display readable without main power (RWP)	Tariffs (optional) Single / TOU Step configurable

Product Parameter：