WEEE Compliant Flow Controllers
Last Updated: April 1, 2025
Description
WEEE Compliant Flow Controllers are devices designed to monitor, indicate, and control the rate of material or media flow throughout a system. They can totalize and indicate the amount of material or process variable, providing essential data for managing flow processes effectively. These controllers are equipped with various user interfaces, including analog indicators, digital readouts, and video terminal displays, allowing for versatile interaction and control.
Working Principle
Flow controllers operate by using advanced or nonlinear control strategies, such as dead-time compensation, lead/lag, adaptive gain, neural networks, and fuzzy logic. These strategies enable the controllers to maintain precise control over flow rates, adapting to changes in the system to ensure consistent performance. The controllers can handle high power switching through relays and optoisolators, and they are compatible with PLC and discrete control systems, making them highly adaptable to different industrial settings.
Applications
Flow controllers are used in a variety of industrial applications. For example, they are essential in the semiconductor industry for managing the flow of gases during the fabrication of solid-state devices. They are also used in the space industry, where precise control of gas flow is critical for various processes.
Advantages over other Process - Fluid and Gas Processing Equipment
One of the key advantages of flow controllers is their ability to provide multi-gas capability in a single instrument, thanks to gas conversion factors. This feature allows for greater flexibility and efficiency in managing different types of gases without the need for multiple devices. Additionally, the advanced control strategies employed by these controllers offer superior accuracy and precision compared to traditional PID loop control systems.
Limitations
Flow controllers can face limitations such as flow blockage at zero flow due to solid impurities, and they may be sluggish in response to quick changes, especially at high differential pressures. These factors can affect the overall performance and reliability of the controllers in certain conditions.
Considerations
When selecting a flow controller, it is important to consider factors such as initial costs, operating expenses, durability, accuracy, and maintenance costs. The choice of user interface, whether analog or digital, can also impact the ease of use and integration into existing systems. Additionally, the update rate of the controller, which determines how frequently it takes readings and adjusts its output, is a critical factor in ensuring optimal performance.
from Sierra Instruments, Inc.
The Model 954 is a state-of-the-art digital system that can operate up to four units. In addition to power, readout and set point, it offers front-panel override for valve shut and purge functions for MFC ’s, user programmable K-factors for different gases, engineering units, alarms,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; REACH, ISO 9001
- Features: Multi-Function; Totalizing (Length or Roll Diameter) Indication/ Control
- Control: Limit
- Form Factor: Chassis; Rack; Stand-Alone
from Sierra Instruments, Inc.
Flow Controllers. SmartTrak ® 100 flow controllers from Sierra Instruments are the next generation of our flagship Model 100. The 100 flow controller builds upon unprecedented performance, user-friendliness and flexibility of innovative features like Dial-A-Gas capability and the Pilot Module... [See More]
- Standards and Compliance: RoHS; WEEE; Other; CE, CRN, ISO 9001
- Features: Rate Indication/ Control
- Control: PID
- Form Factor: Pipe Mounted
from Sierra Instruments, Inc.
For lab researchers and systems integrators/OEMs, Sierra's flagship SmartTrak 100 thermal mass flow controller is a true multi-gas digital MFC designed to deliver smooth, stable, accurate, and repeatable gas mass flow control you can rely on, every time. Unaffected by upstream gas temperature and... [See More]
- Standards and Compliance: RoHS; WEEE; Other; CE, CRN, ISO 9001
- Features: Rate Indication/ Control
- Control: PID
- Form Factor: Pipe Mounted
from Sierra Instruments, Inc.
SmartTrak ® 50 low cost flow controller is a digital flow controller designed to meet the low-cost budgetary requirements of OEM's while maintaining excellent quality and performance. The 50 series low cost flow controller delivers by building on the same core sensor, LFE and valve technology... [See More]
- Standards and Compliance: RoHS; WEEE; Other; CE, CRN, ISO 9001
- Features: Rate Indication/ Control
- Control: PID
- Form Factor: Pipe Mounted
from Bronkhorst USA
EL-FLOW ® Metal Sealed Gas Mass Flow Meters / Controllers. Metal Seal Gas Mass Flow Meters and Controllers of Bronkhorst High-Tech are characterized by their unique, patented metal-to-metal seal construction with excellent resealing capability. Furthermore they distinguish themselves by a high... [See More]
- Standards and Compliance: RoHS; WEEE
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
- Type: DC Voltage Inputs
- Accuracy: 1.0
from Bronkhorst USA
EL-FLOW ®Select - Laboratory style GAS Mass Flow Meters / Mass Flow Controllers. EL-FLOW ® Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'laboratory style' pc-board housing. Control valves can either be integrally or separately... [See More]
- Standards and Compliance: RoHS; WEEE
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
EL-FLOW ®Select - Laboratory style GAS Mass Flow Meters / Mass Flow Controllers. EL-FLOW ® Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'laboratory style' pc-board housing. Control valves can either be integrally or separately... [See More]
- Standards and Compliance: RoHS; WEEE
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
EL-FLOW ®Select - Laboratory style GAS Mass Flow Meters / Mass Flow Controllers. EL-FLOW ® Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'laboratory style' pc-board housing. Control valves can either be integrally or separately... [See More]
- Standards and Compliance: RoHS; WEEE
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
EL-FLOW ®Select - Laboratory style GAS Mass Flow Meters / Mass Flow Controllers. EL-FLOW ® Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'laboratory style' pc-board housing. Control valves can either be integrally or separately... [See More]
- Standards and Compliance: RoHS; WEEE
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
EX-FLOW Ex-Proof (ATEX Zone-1 Certified) Mass Flow Meters / Controllers for gases. EX-FLOW instruments are thermal Mass Flow Meters / Controllers of rugged design and suitable for gas flow application in hazardous areas. The intrinsically safe measuring head is tested according to ATEX 95 Directive... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65. ATEX Cat 2
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Current Loop Output
from Bronkhorst USA
HIGH PRESSURE / High ΔP Digital GAS Mass Flow Meters & Controllers. For applications with high (differential) pressure Bronkhorst High-Tech offers a special range of EL-FLOW ® and IN-FLOW Series Thermal Mass Flow Meters and Controllers. Patented PN400/PN700 control valves can either be... [See More]
- Standards and Compliance: RoHS; WEEE
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
HIGH PRESSURE / High ΔP Digital GAS Mass Flow Meters & Controllers. For applications with high (differential) pressure Bronkhorst High-Tech offers a special range of EL-FLOW ® and IN-FLOW Series Thermal Mass Flow Meters and Controllers. Patented PN400/PN700 control valves can either be... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
HIGH PRESSURE / High ΔP Digital GAS Mass Flow Meters & Controllers. For applications with high (differential) pressure Bronkhorst High-Tech offers a special range of EL-FLOW ® and IN-FLOW Series Thermal Mass Flow Meters and Controllers. Patented PN400/PN700 control valves can either be... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
HIGH PRESSURE / High ΔP Digital GAS Mass Flow Meters & Controllers. For applications with high (differential) pressure Bronkhorst High-Tech offers a special range of EL-FLOW ® and IN-FLOW Series Thermal Mass Flow Meters and Controllers. Patented PN400/PN700 control valves can either be... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
HIGH PRESSURE / High ΔP Digital GAS Mass Flow Meters & Controllers. For applications with high (differential) pressure Bronkhorst High-Tech offers a special range of EL-FLOW ® and IN-FLOW Series Thermal Mass Flow Meters and Controllers. Patented PN400/PN700 control valves can either be... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW 'High-Flow' - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Series Thermal Mass Flow Meters/Controllers for high flow rates of clean gases are equipped with a 'industrial style' pc-board housing. Mass Flow Meters: from 0,4 ... 20 m3n/h up to 220 ... 11000 m3n/h. [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
IN-FLOW ®Select - Industrial style (IP65) Mass Flow Meters / Controllers for gases. IN-FLOW Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'industrial style' pc-board housing. Control valves can either be integrally or separately mounted,... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Type: DC Voltage Inputs
- Control: PID
- Control Signal: Analog Voltage Output; Current Loop Output; Serial / Digital; Other; RS232
from Bronkhorst USA
MASS-STREAMTM Series D-6300 Digital Direct Mass Flow Meters and Controllers for Gases. The new digital MASS-STREAMTM series D-6300 works on the basis of direct through-flow measurement, following the constant temperature anemometer principle, and will replace the current analogue series D-6200 on a... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Interface: Digital Front Panel; Computer Programmable; Network
- Features: Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control; PC-Based
- Inputs: 1
from Bronkhorst USA
MASS-STREAMTM Series D-6300 Digital Direct Mass Flow Meters and Controllers for Gases. The new digital MASS-STREAMTM series D-6300 works on the basis of direct through-flow measurement, following the constant temperature anemometer principle, and will replace the current analogue series D-6200 on a... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Interface: Digital Front Panel; Computer Programmable; Network
- Features: Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control; PC-Based
- Inputs: 1
from Bronkhorst USA
Coriolis Mass Flow Controllers. The pc-board of a mini CORI-FLOW ™ Mass Flow device features integrated, adaptable PID control for fast and smooth control of any electronically driven control valve. Depending on the application this could be an integrated direct acting valve or a separately... [See More]
- Standards and Compliance: RoHS; WEEE; Other; IP65
- Features: Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control; PC-Based
- Control: Limit; PID
- Interface: Computer Programmable; Network
from Bronkhorst USA
Coriolis Mass Flow Controllers. The pc-board of a mini CORI-FLOW ™ Mass Flow device features integrated, adaptable PID control for fast and smooth control of any electronically driven control valve. Depending on the application this could be an integrated direct acting valve or a separately... [See More]
- Standards and Compliance: RoHS; WEEE
- Features: Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control; PC-Based
- Control: Limit; PID
- Interface: Computer Programmable; Network