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Specifications

General introduction
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 the meter meets the technical requirements of national standards, such as GB/T18460.3-2001 Prepayment Watt-hour Meter, GB/T 17215-1998 The First-Class and Second-class Static Alternating Current Active Watt-hour Meter and GB/T 15284-2002 Multi-tariff (Time Sharing) Watt-hour Meter.
Main technical parameters:
* Accuracy: class1.0, 2.0
* Reference voltage: 3×220/380Vac
* Current specification: 3 × 5(20)A; 3×10(40)A; 3× 20(80)A
* Reference frequency: 50Hz
*Limiting operation voltage: 70%~120%UnVac (under infrared communication, operation voltage is 0.8 Un ~1.2 Un)
* Power consumption in voltage circuit: ≤ 10VA or 2W
* Power consumption in current circuit: ≤ 2.5VA
* Starting current: 0.4%I b
* Running with no-load: no pulse output
* Operation temperature range: -25 ℃ ~+ 55 ℃
*Storage and transportation temperature range : -25 ℃ ~+ 70 ℃
* Relative humidity in operating mode: <75%
Main functions
* Measuring function
* Programming function
◆The meter can program sharp, peak, shoulder and off-peak tariffs period of time.
◆There are 48 periods of time and four rates in total. Time intervals are 30 minutes.
◆Interior parameters about watt-hour meter running can be set.
* Monitor and control function: This function requires the user to purchase electricity at first and consume electricity later.
* Memory function: The remnant energy will not be lost when the power supply circuit is cut off.
* Display function: Register and LED
* Identification function: The meter won't work while the non-designated IC card or medium is used.
* Adding function: When the user inserts the prepayment card, the remnant energy can be added to the newly bought energy.
* Pulse output function: Optical isolated output is used to check.
* Communication function: With infrared communication function, time can be corrected through the infrared reading meter.
* Anti-attack function: