浮筒液位變送器BLT100 可靠性高 4至20mA回路供電輸出 高達(dá)130℃的液溫 本地可編程指示器 至多有兩個(gè)報(bào)警輸出 有Ex應(yīng)用程序 概要說明 BASI BLT100 液位變送器是一種浮筒液位變送器。其工作原理是通過特別的磁性浮筒連續(xù)開關(guān)級(jí)聯(lián)簧片開關(guān),將一根保護(hù)管移開。簧片開關(guān)作用于電阻元素。 矩陣變換電路,用測(cè)量標(biāo)準(zhǔn)改變整體矩陣變換電路的電阻線形比例。BLT100提供了一個(gè)雙電線的4至20mA的輸出信號(hào),該信號(hào)帶有6到12mm的液位分辨率。還有一個(gè)集成的回路的供電可編程液晶顯示器指示器。使用這種智能設(shè)備,同時(shí)配備兩個(gè)隱形按鈕,操作員可以實(shí)現(xiàn)屏顯示屏范圍編程、裝置較準(zhǔn),或警報(bào)輸出編程。輸出可以帶動(dòng)兩個(gè)外部繼電器作為警報(bào)或簡(jiǎn)單的通電/斷電控制。該BLT100 當(dāng)超聲波或電容式變送器由于泡沫、密度大的蒸汽或液體表面的非均質(zhì)氣層而無法工作的時(shí)候,BLT100 液位變送器就非常有用。在外部應(yīng)用的情況下,必須用一個(gè)固有的安全電力供應(yīng)裝置或齊納阻擋層。 技術(shù)規(guī)格 工藝流體: 液體,密度0.65g/cm3 輸出信號(hào): 雙電線,4-20mA 范圍: 300到3000mm 零點(diǎn)和量程: 電位計(jì)±0.20% 報(bào)警輸出: 2個(gè)集電極開路輸出門40VDC/10mA 負(fù)載極限: 0 - 820Ω,24V直流電 指示器: 4個(gè)數(shù)字液晶顯示器或LED指示器,高度14mm 配置: 通過指示器上的按鈕 保護(hù)級(jí)別: IP65 耐風(fēng)雨 加工壓力: 20bar 安裝 供電電壓: 10-30V直流電 環(huán)境溫度: -20到70℃ 加工溫度: -40到130℃ 電氣連接: 線纜索緊 工藝連接: G2 或者 NPT2 接觸液體的部件: AISI 316L 大致重量: 取決于應(yīng)用情況 性能 度: 6或12mm 電磁兼容性: EN 50081-1,EN 50082-2,89/336/EEC 訂貨信息 BLT100 分辨率、長(zhǎng)度、安裝、指示器、報(bào)警器、垂直調(diào)整 高6mm×指定Q14 G 2" A液晶顯示器 1 1報(bào)警器×None L 12mm p; Q17 NPT 2" C LED 2 2個(gè)報(bào)警 A 選擇 安裝 F 法蘭×None×None 產(chǎn)品英文描述:FLOAT LEVEL TRANSMITTER BLT100 High reliability4 to 20 mA loop-powered outputUp to 130 °C fluid temperatureLocal programmable indicatorUp to 2 alarm outputs availableEx applications availableGENERAL DESCRIPTIONSThe BASI BLT100 level transmitter is an float level transmitter. The operating principle is based on a consecutive switching of the cascaded reed switches by the special magnetic float, moving alongside a protective tube. The reed switches act on the elements of a resistormatrix, changing the total matrix resistance in linear proportionality with the measuring level. The BLT100 provides a 2-wire 4 to 20 mA output signal with 6 or 12mm level resolution. An integrated loop-powered programmable LCD indicator is also available. Using this smart device, equipped with only two hidden buttons, the operator can realize display range programming, device calibration, or programming of the alarm outputs. The outputs (Open Collector type) can drive two external relays as alarms or simple ON/OFF control. The BLT100level transmitter is very useful in applications where ultrasonic or capacitive transmitters would not work because of the foam, dense vapor, or non-homogeneous gas layer above the liquid surface. In case of Ex applications, an intrinsically safe power supply unit or a Zener-barrier must be used. TECHNICAL SPECIFICATIONSProcess fluid : Liquid, density 0,65g/cm3Output signal : Two-wire,4-20 mARange : 300 to 3000mmZero and span : Potentiometer ±0.20%Alarm output : 2 open collectors 40VDC/10mALoad limitation : 0 - 820Ω at 24VDCIndicator : 4 digit LCD or LED- indicator height 14mmConfiguration : By pushbutton on the indicatorProtection class: IP65 weather-proofProcess pressure : 20bar INSTALLATIONSupply voltage : 10 - 30 VDCAmbient.temp : -20 to 70°CProcess.temp : -40 to 130°CElectrical connection : Cable glandProcess connection : G 2 or NPT 2Wetted parts : AISI 316LApproximate weight : Depending of application PERFORMANCEAccuracy : 6 or 12mmEMC : EN 50081-1, EN 50082-2, 89/336/EEC ORDER INFORMATIONBLT100RESOLUTION LENGTH MOUNTING INDICATOR ALARM VERTICAL ADJUSTMENTH 6mm