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Mass Flow Controllers for Gases

Mass Flow Controllers for Gases
16Pages

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burkert FLUID CONTROL SYSTEMS Product Overview

Bürkert | Mass Flow Controller Introduction The term “gas” has its origin in the Greek word for chaos. Coincidence? Probably not! Gases are peculiar. They are volatile, sometimes reactive, and always expansive. This means that gases have very special handling requirements. Process gases are indispensable in industrial manufacturing. From coating and hardening surfaces, right through to the fermentation processes used in the pharmaceutical world. Inert gases are used for example to protect packaged foodstuffs against the effect of atmospheric oxygen and in metal processing to prevent the...

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Fascination Bürkert Welcome to the Fascinating World of Fluid Control Systems Bürkert Product Program Measurement and control: When it comes to working with liquids and gases, we are at your side − as a manufacturer of We are one of the few suppliers on the market to cover the complete control loop. Our current product range sophisticated products, as a problem-solver with an eye for the big picture, and as a partner offering you reliable advice. extends from solenoid valves through process and analytical valves to pneumatic actuators and sensors. Since we started in 1946, we have developed...

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Bürkert | Mass Flow Controller & Mass Flow Meter Product Overview All Mass Flow Controller (MFC)/Meter (MFM) work at a nominal voltage of 24V DC, have a low pressure drop and do not require flow conditioning at the inlet or outlet. Full scale ranges (273.15 K, 1013.25 mbar) Sensor technology Inline Sensor Body material Stainless steel, aluminium Neutral, non-contaminated gases Turn-down ratio Capillary Sensor MEMS Sensor Stainless steel Stainless steel, aluminium Stainless steel Aggressive, toxic gases Neutral, non-contaminated gases Settling time Protection class Standard signal, RS-232 or...

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Burkert | Mass Flow Controller & Mass Flow Meter All Mass Flow Controller (MFC)/Meter (MFM) work at a nominal voltage of 24V DC, have a low pressure drop and do not require flow conditioning at the inlet or outlet. 1) Type suitable for ATEX Zone 2, Kat 3, IIC, T4 2) In buS-modus up 32 MFC/MFM can be connected to a system control unit (SCU), e.g. of type ME2X. The SCU processes and translates the internal buS communication to industrial fieldbus / Ethernet standards (PROFIBUS DP, PROFINET, Ethernet/Ip Modbus TCP, EtherCAT). Furthermore, the SCU can be extended by I/O modules and as an option...

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Bürkert | Measuring Principle The Measuring Principle of Thermal Mass Flow Mass Flow Controllers − Setup and Functioning The physical law is well known – heat always flows towards lower temperatures. So if a body has All Mass Flow Controllers from Bürkert are compact devices that control the mass flow of gases. a higher temperature than its environment, it will give off its heat energy to the neighbouring mass. They control a preset flow rate reference value – regardless of disturbance variables such as pres- So our thermal/calorimetric measurement technique utilises this principle, i. e....

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Bürkert | Setup and Functioning Inline Sensor MEMS Sensor The Inline sensor works in the CTA operating mode (Constant Temperature Anemometer), whereby In contrast to the Inline sensor, with which the mass flow in the main channel is measured, the an electrical heating resistance (RS) and a measurement resistance (RT) are regulated at a constant MEMS sensor determines the values directly in a secondary channel. In detail: A laminar flow temperature difference. Both resistances are directly placed in the flow channel; three more resist- element brought into the main channel ensures the...

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Bürkert | Setup and Functioning Capillary Sensor Solenoid Control Valve Types 8710/8700, 8715/8705 As with the MEMS sensor, a laminar flow element also causes a pressure drop in the main channel Solenoid control valves are electromagnetic control valves. They open to specific stroke positions – with the capillary sensor. A part of the total flow rate flows through a parallel running secondary depending on the control signal. Two forces counter one another in the valve: one a spring, and the channel. The decisive differences: the capillary sensor has no direct contact with the medium. The...

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Bürkert | Mass Flow Controllers Digital Control Electronics The sensor’s measuring signal range is unambiguously assigned to the flow rate control or measur- The electronic microprocessor system processes the set point and actual flow rate values. In addi- ing range with the calibration. Extremely precise flow references are used to set the flow rate values tion it also controls the actuator (solenoid control valve). Furthermore, the control electronics con- and record the respective sensor signals. If the flow curve is registered, the electrical inputs and out- vert the sensor signal into...

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Industrial Communication – with Fieldbus and Industrial Ethernet With the introduction of fieldbuses in the 1980s, information technology came into play at the field level of automation. Manu facturer-driven, fieldbus systems arrived on the market one after another. Well known and wide spread representatives are PROFIBUS, CANopen and DeviceNet. Basic advantages to conventional, hardwired architectures include reduced wiring costs (hardware) and easy integration of single components into an industrial plant (software). These are key factors in process automation. Strong competition for...

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EDIP (Efficient Device Integration Platform) User interface of the Bürkert Communicator. The graphical programming interface (f(x)) is integrated into this software. The f(x) allows to program customized system control functions – e.g. for gas blending. The term EDIP stands for Efficient Device Integration Platform. It is the new Bürkert device platform which standardizes the operation, communication and interfaces of many process instruments (e.g. sensors, mass flow controllers). With EDIP all büS devices from Bürkert can be integrated into the proprietary büS system and can be operated...

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Mass Flow Controllers for Gases 16Pages

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Mass Flow Controllers for Gases
16Pages