Rosemount 3490系列通用控制器是一款緊湊易用的控制器，提供配置、顯示、計(jì)算、記錄和控制輸出等功能。 德州奧斯?。?007年10月9日）消息，艾默生過(guò)程管理公司推出Rosemount 3490系列通用控制器，設(shè)計(jì)用于在使用任意4-20mA或是HART兼容傳送器時(shí)提供全面的控制功能。3490系列控制器配置了傳送器并提供顯示、計(jì)算、記錄和控制輸出功能。此系列包括3491標(biāo)準(zhǔn)控制器、3492差異控制器和3493記錄控制器。 3490系統(tǒng)擁有用戶友好型界面，可執(zhí)行來(lái)自傳送器信號(hào)的各種計(jì)算，如將水平值轉(zhuǎn)化成為體積或是流量。所有變碼表現(xiàn)為多功能燈箱顯示和整合的六按鈕小型鍵盤(pán)。直接的菜單驅(qū)動(dòng)顯示和輔助向?qū)Ь幊淌沟糜脩舨恍枰?jīng)過(guò)任何培訓(xùn)就能操作控制器。 非常適用于墻體或是平面安裝（在沒(méi)有危險(xiǎn)的區(qū)域內(nèi)），控制器由115/230V 交流或是24V直流帶動(dòng)，為安裝在危險(xiǎn)區(qū)域的傳送器提供固定且安全的24V直流供電。電力供應(yīng)是完全受保護(hù)的，不需要任何外部的I.S.屏蔽。 Rosemount 3490系列控制器可以被用于任何HART兼容的或是4-20mA設(shè)備的本地顯示。清晰的畫(huà)面顯示將展示出HART傳送器與控制器一起的轉(zhuǎn)播狀況。在其它設(shè)備中有用于泵用控制的五個(gè)自由的電壓?jiǎn)蔚峨p擲繼電器用于觸發(fā)警報(bào)。 Rosemount 3491是標(biāo)準(zhǔn)的控制器，3492差異模塊可接收來(lái)自兩個(gè)HART或是4-20 mA模擬信號(hào)輸入（單一接收或是兩個(gè)同時(shí)接收）并執(zhí)行各種各樣的計(jì)算。3493記錄模塊擁有車載記錄系統(tǒng)，可以在用戶限定的時(shí)間間隔內(nèi)記錄7000個(gè)實(shí)例，例如：記錄PV（或任意其它可變的顯示）和在流量測(cè)試應(yīng)用中的流量值。所有提供的模塊都獲得了CE、ATEX, IECEx, CSA, 或UL證書(shū)。 關(guān)于艾默生過(guò)程管理 作為艾默生集團(tuán)的業(yè)務(wù)之一，艾默生過(guò)程管理為工業(yè)生產(chǎn)、加工、分銷提供自動(dòng)化服務(wù)，應(yīng)用在化工、石油天然氣、精煉、紙漿和造紙、能源、食品飲料、醫(yī)藥等領(lǐng)域。艾默生過(guò)程管理將先進(jìn)的產(chǎn)品和技術(shù)結(jié)合在為不同工業(yè)而設(shè)計(jì)的工程、咨詢、項(xiàng)目管理和維護(hù)服務(wù)中。艾默生過(guò)程管理旗下的品牌有：PlantWeb, Micro Motion, Fisher, Rosemount, Mobrey, Daniel, Bristol, DeltaV, Ovation, 以及 AMS 套件。 關(guān)于艾默生 總部位于圣路易斯市的艾默生是一家全球領(lǐng)先的公司，該公司將技術(shù)與工程相結(jié)合，在網(wǎng)絡(luò)能源、過(guò)程管理、工業(yè)自動(dòng)化、環(huán)境優(yōu)化技術(shù)及家電和工具等領(lǐng)域?yàn)榭蛻籼峁﹦?chuàng)新性的解決方案。公司在2006 財(cái)年的銷售額達(dá)201 億美元。更多信息：www.Emerson.com [font=times]original text [/font] [font=times]Emerson introduces Universal Control Unit for use with 4-20mA OR HART® compatible transmitters [/font] [font=times][color=#708090]Rosemount 3490 Series Universal Control Units are compact and easy to use, providing configuration, display, calculations, logging and control outputs AUSTIN, TEXAS （October 9, 2007） – Emerson Process Management introduces the Rosemount 3490 Series of Universal Control Units, designed to provide comprehensive control functionality when used with any 4-20mA or HART compatible transmitter. The 3490 Series Control Units configure transmitters and provide display, calculations, logging and control outputs. The series comprises the 3491 Standard Control Unit, 3492 Differential and 3493 Logging Control Units. The 3490 Series is user friendly and has the capability to perform a variety of calculations on the signal received from the transmitter, for example, translating level into volume or flow. All variants feature a multi-function back-lit display and integrated six button keypad. The intuitive menu driven display and wizard-assisted programming makes the unit easy to use without any special training. Suitable for wall or panel mounting in a non-hazardous area, the control units are 115/230V ac or 24V dc powered and provide an intrinsically safe 24V dc power supply to the transmitter which may be mounted in a hazardous area. The power supply is fully protected and there is no need for any external I.S. barrier. Rosemount 3490 Series units can be used as a local display for any HART compatible or 4-20mA device. The clear visual display will show the measured value of any of the HART variables of the transmitter together with units and the controller relay status. There are five voltage free SPDT relays for the control of pumps or to trigger alarms in other equipment. The Rosemount 3491 is the Standard Control Unit, the 3492 Differential model accepts inputs from two transmitters with HART or 4-20 mA analog inputs （one analog-one HART, or two HART at the same time）. It can perform a variety of calculations providing a single current output proportional to the answer. The 3493 Logging model has an on-board logging system which can log up to 7000 samples at user definable intervals, for example logging of PV （or any other displayed variable） and totalized flow values in flow measurement applications. All models can be supplied to meet CE, ATEX, IECEx, CSA, or UL certifications for global use. The Rosemount 3490 Series Universal Control Unit from Emerson is compact and easy to use. About Emerson Process Management Emerson Process Management （www.EmersonProcess.com）, an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the chemical, oil and gas, refining, pharmaceutical, food and beverage, pulp and paper, power, water and wastewater treatment and other industries. A division of Emerson, Rosemount （www.EmersonProcess.com/Rosemount） is a global leader in high-precision pressure, temperature, level, and flow instrumentation. Rosemount best-in-class technology and expertise plays a key role in the Emerson mission of combining superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Emerson brands include Rosemount®, PlantWeb®, Fisher®, Micro Motion®, Mobrey®, Daniel®, Bristol®, DeltaV™, Ovation®, and AMS™ Suite. About Emerson Emerson, based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2006 were $20.1 billion. For more information, visit www.Emerson.com [/color][/font]