DDSD101-KT

Single Phase Keypad Meter

•Accuracy Class: Class 1.0 for kWh, Class 2.0 for kvarh

•Built-in relay control and battery

•Built-in communication modem, optical port, and RS-485

•Bi-directional measurement

•Prepaid / Post-paid switch

•Demand monitoring

•Load profile

•Anti-tamper

•CIU connection

•Local and remote charging (token transferring)

•Firmware upgrading

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Main Functions

Measurement		2 elements, 4 quadrants
		Instantaneous Vrms, Irms, frequency, PF, kW, kvar, kVA
		Rich set of energy and demand registers (A+, A-, R+, R-, +Ri, +Rc, -Ri, -Rc)
Backup Battery		Flexible backup power for RTC, including built-in battery or super capacitor
Load Control		Remote relay control command
		Over current control
		Power limit
Firmware Upgrade		Firmware can be upgraded via the optical interface as well as the WAN interface
Event Logs		Tamper detection, internal failure detection, power quality events, over current/current imbalance, security events, standard events
HAN Communication		RS485/M-BUS
		FSK RF, FSK PLC
		Communication with in-home display
		Protocol: DLMS/COSEM
Security		LLS, supporting 3-level passwords for local and remote communication
		HLS, supporting authentication and encryption for local and remote communication