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3-Phase Static Multi-Tariff Watt-Hour Meter

3-Phase Static Multi-Tariff Watt-Hour Meter
General introduction:
The meter adopts the latest three-phase energy measuring special chips to achieve high-accuracy and high-overloading three-phase complex-rate electric energy measurement. The product with high stability, high accuracy and easy operation, is an indispensable high-tech product for power departments to carry out time-sharing electric charge and modern energy measurement management.
The performance index of meter meet the technical requirements of national standards, such as GB/T 17215-2002 The First-Class and Second-Class Static Alternating Current Active Watt-Hour Meter, GB/T 15284-2002 Multi-Tariff Watt-Hour Meter and DL/T 614-1997 Multifunctional Electric Energy Meter. Its communication index conforms to the requirements of DL/T 645-1997 Multifunctional Meter Communication Regulation.
Main technical index:
1) Accuracy class: class 1.0, 2.0
2) Rated frequency: 50Hz
3) Voltage circuit: &amp;e;2W and 10VA
4) Current circuit: &amp;e;0.6VA
5) Daily timing accuracy: &amp;e;±0.5s (23±3o C)
6) Daily timing error while power cut: &amp;e;±1.0s/d
7) Power consumption while power cut: stand-by current &amp;e;45u A (battery voltage is
3.6V, and 32768Hz)
8) Influence upon voltage: if operating voltage changes ±20%, its stability is in
good condition
9) Environmental conditions:
a) Operation temperature: -20 ~ +45o C
b) Limited operation temperature: -40 ~ +60o C
c) Relative humidity:
i) The annual average humidity &amp;e;75%
ii) 30 days, and these days are randomly distributed in one year, &amp;e;95%
iii) In other days it sometimes reaches &amp;e;85%
10) Appearance dimensions: 278 x 172 x 74mm
Main functions and characteristics:
1) Multi-tariff (time-sharing) electric energy measurement
2) Measure the maximum demand
3) Display
4) Programme and data communication
5) The meter has the functions of circuit display, RAM, EEPROM memory and WDT
self-checking
6) Time switch
7) Phase losing date record
8) With an excellent compatibility, galvanomagnetism is designed to have a double
watchdog circuits: internal watchdog circuit and external watchdog circuit.
Therefore, even if the meter is out of condition, it can automatically restore.
Moreover, while power is cut off and power consumption is very low, and all data
about power turn-off can be stored permanently
9) When battery voltage is under voltage or loss of voltage, the meter can give an
alarm automatically

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