型號描述
8741 型必要時可以設置為 MFC 或者 MFM，且規定用于 büS 或者 CANopen 網絡中。büS 網絡技術以 CAN 物理層為基礎，Bürkert 特別為涉及多個控制回路（通過工業以太網或者其他現場總線加以驅動）的應用而對其進行了研發。型號為 ME2X 的系統控制單元 (SCU, System Control Unit) 將客戶的以太網通信傳輸到所有者的 büS 中，并驅動所有相連的電子設備。? 設備之間的通信可以在 büS 和 CANopen 之間切換。借此，8741 型也可以集成到現有的 CANopen 基礎設施中。 8741 型借助 MEMS 傳感器進行氣體質量流量的測量（用作 MFM）或者調節（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極其快速地做出反應。此外，測量工作不受壓力或者溫度波動的影響?？梢詫?MFC/MFM 進行校準，使其用于測量/調節兩種不同的氣體，用戶可以在這兩種氣體之間進行切換。
）采用 MEMS 技術直接測量流量
2）測量和重復精度高
3）反應時間非常之短
4）現場總線通信基于 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
氣體質量流量控制器部分訂貨號如下：
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