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DDS2-A1-C SINGLE PHASE DIGITAL ENERGY METER 

SPECIFICATION:
Used for AC single phase active energy measuring. 
ANSI standard plug installation type, single phase two wires and single phase three wires 
Display type: two lines LCD, display active total energy and real time of 
voltage, current, power etc. parameters.
Display range: 5+1,5+2,6+1 
Accuracy active energy measuring, no need deg ing for long time work

STANDARDS:
According to ANSI C12.1, ANSI C12.10, ANSI C12.20 standard

FUNCTIONS:
Total energy= positive active+negative active 
Multi tariff (four tariff) and multi period of time measuring function
Bypass stealing electricity of live line and zero line
Display real time value of voltage, current, frequency and active power
Display data even after power off
Near-infrared communicating function.

TECHNICAL SPEC.:

Reference voltage (Un):110V, 120V, 240V
Normal work voltage: 80%~120%Un
Limit work voltage： 70%~130%Un
Current spec. Ib（Imax）:15(100)A, 30(200)A Reference frequency：50Hz, 60Hz
Starting current： 0.004Ib
Connection type choice: single phase two wires, single phase three wires
Impulse constant：1000imp/kWh
Standard level：0.5class,1.0class
Power consumption of meter：<0.5W
Communicating protocol: near-infrared 
Working life：not less than 10 years
Data store: data will always be stored after power off
impulse output: LED impulse
Size of the appearance:（mm）：∅75*125

WORKING ENVOIRENMENT:

Working temperature: -35℃~70℃
Limit working temperature: -40℃~80℃
Store and ship temperature: -40℃~80℃
Waterproof and dustproof: IP54
Relative humidity:：=<95%
Atmospherie pressure：63kPa~106.0kPa