| 概述 Application（） |
| DDSF345型單相電子式復費率電能表是用于測量單相中額定電壓220V頻率為50Hz的交流有功電能，具有劃分時段計量，分時計費，自動運算功能的智能計量儀表，用戶可對不同時段的復費率進行用電選擇。復費率產品的誕生，將了“峰時”用電，節省了電費，也使電能源得到均衡利用。 本產品可配備掌上電腦(抄表器)利用遠紅外進行編程，抄表校時，實現非接觸式的數遞，并與微機連接實行自動化管理。
DDSF345 te single——phase electronic multi——rate watt——hour meter is used to measure AC active electric energy of rated voltage 220V and frequency 50Hz of single—phase power network，it is a kind of intelligent measuring meter that can measure by means of divided—period，count the cost by time—sharing and calculate automatically．Users can make a decision of power utilization according to the multirate in the different periods．The bi rth of multi—rate products enhances electricity using at peak time，it not only saves the electricity cost，but also balances the electric energy using．After being equipped with a palm computer(meter reading system)，it can make use offar infrared to program，during meter reading and timing，it can realize nontouch te data tranission and automatic control by connecting with micro—computer |
| 主要特點 Strncture（） |
◎顯示及記錄當月和上月峰、谷、平等多種費率的用電量和總用電量。
◎Display and record multi—rate power consumption like peak．valley,even and total power consumption this month and last month. ◎Display present rate period ◎Preset total electric quantity，date，time，constant of watt—hour meter,date of meter reading and parameter of period ◎Set 8 time—interval．it can supply any optional multi—rate for power department . ◎Record E3ROM data that is reserved when power is off in meter,when power is off the data keeps in meter,we make sure the internal memory information can be used for 1 0 years . ◎Posses multi—mode of encrtion，functions of electricity thieving—proof，anti—interference，anti—attaching. ◎Applicable voltage range：1 70V-260V ◎Height of measuring accuracy and width of l oad：lMAX=81b |
| 規格及主要技術參數 Main Technical Parameter（） |
