ABB渦流流量計(jì)，氣體4“法蘭連接

高度精確地測(cè)量液體、蒸汽和氣體，不受沉積物的影響

精度為±0.75，液體流率和±1%的氣體和蒸汽

全方位的大小尺寸為試驗(yàn)工廠和工藝方面的應(yīng)用

先進(jìn)的處理器，提供了大量的監(jiān)控和控制選項(xiàng)

模擬和HART輸出

憑借強(qiáng)大的設(shè)計(jì)和數(shù)字信號(hào)處理，這些儀表提供所有的漩渦技術(shù)的最佳效益。為增加耐用性，閥體、卸料器和傳感器都是316L不銹鋼，NEMA4X（IP67）轉(zhuǎn)換器外殼環(huán)氧涂層鋁，可承受惡劣的過(guò)程環(huán)境。流量計(jì)的性能一樣重要的是轉(zhuǎn)換器的設(shè)計(jì)，所有的編程可以通過(guò)集成三鍵鍵盤(pán)或通過(guò)使用ABB磁棒和選擇參數(shù)從編程菜單無(wú)需打開(kāi)轉(zhuǎn)換器外殼來(lái)完成。

當(dāng)編程單元，可以設(shè)置發(fā)射器參數(shù)的模擬輸出和超限報(bào)警輸出流量或脈沖輸出。電子允許用于過(guò)濾和/或輸出的一個(gè)低流量截止到在波動(dòng)的流動(dòng)條件的情況下限制控制中斷，所有設(shè)定的參數(shù)都存儲(chǔ)在一個(gè)孤立的EEPROM長(zhǎng)達(dá)10年無(wú)電源。

為了提供最佳的功能，渦式流量計(jì)的流量分布應(yīng)盡可能不受干擾越好。這是通過(guò)使用一個(gè)直的入口部分的長(zhǎng)度的管的直徑的15倍，并在管道直徑的5倍的出口部分來(lái)實(shí)現(xiàn)的。

Vortex Flowmeter, 4" Flange Connection, for Gases

Highly accurate measurement of liquids, steam, and gases unaffected by sediments

Accuracy of ±0.75 of flow rate for liquids and ±1% for gases and steam

A full range of sizes for pilot plant and process area applications

An advanced processor provides numerous monitoring and control options

Analog and HART out

With a robust design and digital signal processing, these meters provide all of the best benefits of vortex technology. The body, shedder, and sensor are all 316L SS for added durability. The NEMA 4X (IP67) converter housing is epoxy-coated aluminum that can withstand harsh process environments. Just as important to the performance of the flowmeter is the design of the converter. All the programming can be done either through the integrated three-button keypad or by using the ABB Magnet Stick and select parameters from the programming menu without opening the converter housing.

When programming the unit, you can set transmitter parameters for the analog output and a limit alarm output for flowrate or pulse output. The electronics allow for filtering and/or a low flow cutoff of the output to limit control disruptions in the event of fluctuating flow conditions. All programmed parameters are stored in an isolated EEPROM for up to 10 years without power.

In order to provide optimum functionality, the flow profile of the vortex flowmeter should be as undisturbed as possible. This is achieved by using a straight inlet section with a length of 15 times the pipe diameters and an outlet section of 5 times the pipe diameter.