產(chǎn)品名稱: 明渠流量監(jiān)測(cè)儀

型號(hào)系列:FC220

品牌:global water

產(chǎn)地:美國(guó)

價(jià)格:**終成交價(jià)格需聯(lián)系客服



Global Water 的 FC220 明渠流量監(jiān)測(cè)器是一種可靠且準(zhǔn)確的儀器，用于測(cè)量和匯總所有水槽和堰的明渠流量，以及任何重力型明渠流量應(yīng)用。

美國(guó)Global Water明渠流量監(jiān)測(cè)儀FC220概述

特征
• 易于使用的界面，帶有用戶可選擇的流量表
• 接受任何 4-20mA 水位傳感器輸入
• 用于記錄儀或顯示器的 4-20mA 輸出信號(hào)
• 用于警報(bào)、采樣或數(shù)據(jù)記錄的繼電器輸出
• 防水外殼

流量計(jì)使用任何 4-20mA 水位傳感器的輸出測(cè)量水深，包括 Global Water 的高精度潛水壓力傳感器或超聲波水位傳感器，流量計(jì)功能強(qiáng)大的微處理器使用以下一種方式立即計(jì)算并顯示用戶可選擇單位中的水流量和累加器值幾種水流計(jì)算模式。明渠流量監(jiān)視器有一個(gè) 8 按鈕鍵盤，可輕松引導(dǎo)您完成多功能設(shè)置菜單。

明渠流量

對(duì)于任何自由流動(dòng)的明渠，水深和流速之間存在特定的關(guān)系。每當(dāng)出現(xiàn)給定的深度時(shí)，總會(huì)有相同的水流。因此，如果每個(gè)深度的流量已知，則可以構(gòu)建深度與流量的關(guān)系。明渠流量監(jiān)控器支持大量不同類型的流量計(jì)算模式。明渠流量計(jì)包括 40 多個(gè)預(yù)編程的水槽和堰表。用于圓管和開放矩形通道的監(jiān)測(cè)；水流量計(jì)的曼寧方程模式允許用戶輸入他們自己的材料、坡度和管道或渠道尺寸參數(shù)。明渠流量監(jiān)視器還允許您定義標(biāo)準(zhǔn)流量方程，可以計(jì)算幾乎所有水槽和堰的流量。另一種模式允許用戶將參數(shù)輸入到水流量計(jì)中以獲得**擬合的三階多項(xiàng)式，這對(duì)于根據(jù)經(jīng)驗(yàn)數(shù)據(jù)和查找表計(jì)算流量很有用（參見關(guān)于流量測(cè)量的文章）。此外，一 (1) 個(gè)工廠可編程查找表可以永久存儲(chǔ)在明渠流量監(jiān)測(cè)器的處理器內(nèi)存中，用于在單個(gè)方程無法準(zhǔn)確預(yù)測(cè)流量的應(yīng)用中進(jìn)行監(jiān)測(cè)，例如具有復(fù)雜幾何形狀的河床和明渠。用戶可以將 16 個(gè)字符的名稱編程到 FC220 水流量計(jì)中，以識(shí)別安裝地點(diǎn)或顯示有關(guān)配置的其他信息。

深度測(cè)量

Global Water 的標(biāo)準(zhǔn)明渠流量監(jiān)測(cè)器可以使用任何 4-20 mA 水位傳感器測(cè)量水流深度，包括高精度 WL400 水位傳感器，它是一種由不銹鋼制成的完全潛水式水位傳感器。任何水位傳感器范圍都可以與流量計(jì)一起使用，但是范圍接近您**預(yù)期水位變化的傳感器將為您提供**精度。潛入式壓力傳感器應(yīng)安裝在略低于明渠“零”流量深度的位置，位于水槽或堰口的上游。對(duì)于沒有主設(shè)備的明渠，傳感器應(yīng)安裝在預(yù)期的**水深以下。因?yàn)槊髑髁勘O(jiān)測(cè)器接受 4-20 mA 輸入信號(hào)，所以它可以安裝在距離水位傳感器 3000 英尺的地方。

Global Water 還提供超聲波水位傳感器，允許明渠流量監(jiān)測(cè)器測(cè)量半固體流量或不適合標(biāo)準(zhǔn)潛水壓力傳感器的流量。Global Water 建議僅在有交流電源的區(qū)域使用超聲波傳感器選件。對(duì)于沒有交流電源的應(yīng)用，您應(yīng)該強(qiáng)烈考慮將潛入式壓力傳感器與明渠流量監(jiān)測(cè)器一起使用。

明渠流量監(jiān)測(cè)顯示

明渠流量監(jiān)測(cè)器可顯示多達(dá) 7 位數(shù)字的水流量，可顯示非常大的流量。水流量計(jì)的累加器可在非易失性存儲(chǔ)器中記錄多達(dá) 9 位的流量，并有密碼保護(hù)以防重置?？捎皿w積單位有立方英尺、加侖、百萬加侖、立方米和升；時(shí)間單位包括秒、分鐘、小時(shí)和天。這允許明渠流量計(jì)以 20 種不同的用戶定義單位顯示流量。水位以英尺、英寸、米或厘米為單位進(jìn)行校準(zhǔn)和顯示；水位偏移功能允許調(diào)整測(cè)量的水位，以補(bǔ)償水流量計(jì)傳感器安裝的變化。

明渠流量監(jiān)測(cè)輸出

水流量計(jì)有四個(gè)獨(dú)立的繼電器輸出，用于觸發(fā)外部設(shè)備，如水采樣器和監(jiān)控設(shè)備。明渠流量監(jiān)測(cè)器的繼電器可以單獨(dú)編程以根據(jù)每個(gè)脈沖的體積觸發(fā)，閾值設(shè)置可用于將觸發(fā)限制在預(yù)設(shè)水平以上的流量。還有一個(gè)準(zhǔn)確且可擴(kuò)展的 4-20mA 輸出，用于使用數(shù)據(jù)記錄器和 PLC 設(shè)備監(jiān)控流量。內(nèi)部 USB 數(shù)據(jù)記錄器可作為明渠流量監(jiān)控器的出廠選項(xiàng)，以允許記錄歷史流量數(shù)據(jù)以及每個(gè)繼電器觸發(fā)事件??的準(zhǔn)確時(shí)間。提供免費(fèi)軟件用于對(duì)數(shù)據(jù)記錄器進(jìn)行編程、下載流量和繼電器數(shù)據(jù)以及導(dǎo)出到電子表格。

水流量計(jì)外殼

外殼由耐候注塑塑料制成。它適用于各種環(huán)境。如果需要，外殼可以安裝在墻上，并配備用于傳感器和電源連接的導(dǎo)管。

美國(guó)Global Water明渠流量監(jiān)測(cè)儀FC220規(guī)格

中文內(nèi)容來自機(jī)器翻譯，內(nèi)容僅供參考，實(shí)際內(nèi)容可參考原廠介紹或以合同為準(zhǔn)。
英文原文：

Global Water's FC220 Open Channel Flow Monitor is a reliable and accurate instrument for measuring and totalizing open channel flows for all flumes and weirs, as well as for any gravity-type open-channel flow application.

Overview
FEATURES

• Easy-to-use interface with user selectable flow tables
• Accepts any 4-20mA water level sensor's input
• 4-20mA output signal for recorders or displays
• Relay outputs for alarms, sampling, or datalogging
• Water resistant enclosure

The flow meter measures water depth using any 4-20mA water level sensor's output including Global Water's highly accurate submersible pressure transducer or ultrasonic water level sensor and the flow meter's powerful microprocessor instantly calculates and displays water flow and totalizer values in user selectable units using one of several water flow calculation modes. The Open Channel Flow Monitors have an 8-button keypad that easily guides you through the versatile setup menus.

Open Channel Flows

For any open channel that is free flowing, there is a specific relationship between depth of water and flow rate. Whenever a given depth occurs, there will always be the same water flow. Therefore, if the flow rate is known for each depth, a depth-to-flow relationship can be constructed. The Open Channel Flow Monitor supports a large number of different types of flow calculation modes. Over 40 preprogrammed flume and weir tables are included with the open channel flow meter. For monitoring in round pipes and open rectangular channels; the water flow meter's Manning's Equation mode allows the user to enter their own parameters for material, slope and pipe or channel dimensions. The open channel flow monitors also allow you to define standard flow equations, which can calculate flow for almost all flumes and weirs. Another mode lets the user enter parameters into the water flow meter for a best fit 3rd order polynomial which is useful for calculating flow based on empirical data and lookup tables (see article on Stream Flow Gauging). In addition, one (1) factory programmable lookup table can be permanently stored in the open channel flow monitor's processor memory for monitoring in applications where a single equation can't accurately predict flow, such as streambeds and open channels with complicated geometry. A 16-character name can be programmed into the FC220 water flow meters by the user to identify the installation site or show other information about the configuration.

Depth Measurement

Global Water's standard open channel flow monitors can measure flow depth with any 4-20 mA water level sensor including the highly-accurate WL400 Water Level Sensor, which is a fully submersible water level sensor constructed of stainless steel. Any water level sensor range can be used with the flow meter, however a sensor with a range near to your largest expected water level change will give you the best accuracy. Submersible pressure transducers should be mounted slightly below the "zero" flow depth of the open channel, upstream from the throat of the flume or weir. For open channels with no primary device, the sensor should be mounted below the lowest expected water depth. Because the open channel flow monitor accepts a 4-20 mA input signal it can be mounted up to 3000 feet away from the water level sensor.

Global Water also offers an ultrasonic water level sensor that allows the Open Channel Flow Monitor to measure semi-solid flows or flows that are not suitable for a standard submersible pressure transducer. Global Water recommends that the ultrasonic sensor option only be used in areas where AC power is available. You should strongly consider using a submersible pressure transducer with your open channel flow monitor for applications that are in areas without AC power.

Open Channel Flow Monitor Display

The Open Channel Flow Monitors display water flow with up to 7 digits allowing for very large flows to be displayed. The water flow meter's totalizer records up to 9 digits of flow volume in non-volatile memory, and is password protected from reset. Available volume units are cubic feet, gallons, million gallons, cubic meters and liters; time units include seconds, minutes, hours and days. This allows the open channel flow meters to display flow in 20 different user defined units. Water level is calibrated and displayed in feet, inches, meters or centimeters; and a water level offset function allows the measured water level to be adjusted to compensate for variations in the water flow meter's sensor installation.

Open Channel Flow Monitor Output

The water flow meters have four independent relay outputs for triggering external devices like water samplers and monitoring devices. The open channel flow monitor's relays can be separately programmed to trigger based on volume per pulse, and threshold settings can be used to limit triggering to flows above preset levels. There is also an accurate and scalable 4-20mA output provided for monitoring the flow using data loggers and PLC devices. An internal USB data logger is available as a factory option for the open channel flow monitor to allow the historical flow data to be recorded, as well as the exact time of each relay trigger event. Free software is provided for programming the data logger, downloading flow and relay data, and exporting to spreadsheets. The water flow meters have programmable power saving features that allow the supply current to be reduced, which is important in remote monitoring applications.

Water Flow Meter Enclosure

The enclosure is made of weather resistant injection molded plastic. It is suitable for use in a wide variety of environments. The enclosure can be wall-mounted and fitted with conduit for sensor and power connections, if required.

Specifications