型號(hào)描述

8741 型必要時(shí)可以設(shè)置為 MFC 或者 MFM，且規(guī)定用于 büS 或者 CANopen 網(wǎng)絡(luò)中。büS 網(wǎng)絡(luò)技術(shù)以 CAN 物理層為基礎(chǔ)，Bürkert 特別為涉及多個(gè)控制回路（通過工業(yè)以太網(wǎng)或者其他現(xiàn)場總線加以驅(qū)動(dòng)）的應(yīng)用而對(duì)其進(jìn)行了研發(fā)。型號(hào)為 ME2X 的系統(tǒng)控制單元 (SCU, System Control Unit) 將客戶的以太網(wǎng)通信傳輸?shù)剿姓叩?büS 中，并驅(qū)動(dòng)所有相連的電子設(shè)備。? 設(shè)備之間的通信可以在 büS 和 CANopen 之間切換。借此，8741 型也可以集成到現(xiàn)有的 CANopen 基礎(chǔ)設(shè)施中。 8741 型借助 MEMS 傳感器進(jìn)行氣體質(zhì)量流量的測量（用作 MFM）或者調(diào)節(jié)（作為 MFC）工作。傳感器直接接觸氣體，因而可以在幾百毫秒之內(nèi)極其快速地做出反應(yīng)。此外，測量工作不受壓力或者溫度波動(dòng)的影響?？梢詫?duì) MFC/MFM 進(jìn)行校準(zhǔn)，使其用于測量/調(diào)節(jié)兩種不同的氣體，用戶可以在這兩種氣體之間進(jìn)行切換。

）采用 MEMS 技術(shù)直接測量流量
2）測量和重復(fù)精度高
3）反應(yīng)時(shí)間非常之短
4）現(xiàn)場總線通信基于 CANopen

Type Description

The mass flow controller / meter type 8741 for gases is intended for the use in a büS or CANopen network. The büS network technology is based on CAN physics and was developed by Bürkert especially for Industrial Ethernet or fieldbus communication in applications with multiple control loops. In combination with the system control unit (SCU) type ME2X, the CANopen based communication can be translated to the customer’s fieldbus. The mass flow controller (MFC) / meter (MFM) can always be switched between büS and CANopen communication. Given that, Type 8741 can also be directly integrated into existing CANopen networks. Type 8741 can be configured as MFM or MFC. Optional, two different gases can be calibrated. The thermal MEMS sensor is located directly in the gas stream and therefore reaches very fast response times. A direct-acting proportional valve as regulating unit guarantees high sensitivity. The integrated PI controller ensures outstanding control characteristics of the MFC / MFM. Type 8741 is especially designed for use in cabinets.

1）Nominal flow ranges from 0.010 lN/min to 80 lN/min
2）High accuracy and repeatability
3）Very fast response times
4）Communication via fieldbus based on CANopen

氣體質(zhì)量流量控制器部分訂貨號(hào)如下：

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