應(yīng)用計(jì)算機(jī)管理，先購(gòu)電后用電；在額定電流范圍內(nèi)能限制使用功率(由供電部門(mén)限定)；一表一卡，專(zhuān)卡專(zhuān)用，失卡不失電，補(bǔ)卡再用；電卡能雙向傳遞數(shù)據(jù)；能自動(dòng)斷電告警用戶(hù)購(gòu)電；電量為零時(shí)，自動(dòng)拉閘斷電；并具有一定的防竊電軟件設(shè)計(jì)等。適用于頻率為50Hz或60Hz有功電能計(jì)量，安裝于室內(nèi)或室外表箱內(nèi)使用。適用于環(huán)境溫度為-20℃～+50℃，相對(duì)溫度不超過(guò)85％，且周?chē)諝庵胁粦?yīng)有腐蝕性氣體，避免塵砂、鹽霧、凝露等影響。

Adopt the mode of computer control first pu rchasing electricity then using it；it can Iimit max service power(Specified by electric power department)in the rated current range；one meter with one card，special card for special application，no lose electricity if Iosingcard，reuse electricity through renewing the card；the electric card can transmit the data；when the electricity quantity is zero，it can switch off the power automatically to warn users shall purchase the electricity；besides it has certain software design of anti—thieving electricity Applicable for measuring 50 Hz or 60Hz active energy，it is installed inside or in the box outside It is used in the best place that the environment temperature is -10℃～+50℃ and relative humidity is not beyond 85％，the ambient air can’t contain the corrosive gas，dust，salt fog，condensation，etc..