Multi-Function Controller Flow Controllers
Last Updated: April 1, 2025
Description
Multi-Function Controller Flow Controllers are devices designed to manage and regulate the flow of fluids or gases within a system. They achieve this by adjusting the flow rate to match a desired set point, ensuring consistent and precise control over the process.
Working Principle
These controllers operate by receiving feedback from flow sensors, which measure the flow of fluid or gas through the system. The controller processes this feedback and adjusts the opening of the flow control valve accordingly, using proportional control algorithms to maintain the desired flow rate. This ensures consistent flow even when there are changes in pressure, temperature, or flow rate, making them highly useful for maintaining stability in various processes .
Applications
Multi-Function Controller Flow Controllers are used in a wide range of applications. For instance, they are employed in industries that require precise control of gas and liquid flows, such as semiconductor manufacturing, chemical processing, and pharmaceuticals. They are also used in laboratory settings for research and development purposes, where accurate flow control is critical for experimental integrity .
Advantages over other Process - Fluid and Gas Processing Equipment
One of the significant advantages of Multi-Function Controller Flow Controllers is their ability to measure and control flow simultaneously, which eliminates hysteresis and stabilizes flow rates across varying temperatures and pressures. This dual functionality is not commonly found in other flow control devices, which typically only modulate flow without measuring it . Additionally, these controllers offer flexibility in process and inventory management, as they can be reconfigured for different applications without compromising accuracy .
Limitations
A notable limitation of these controllers is their dependency on precise sensor feedback to function effectively. Any inaccuracies in sensor data can lead to incorrect flow adjustments. Furthermore, they may be limited in their ability to handle extremely high flow rates or pressures, depending on the specific design and materials used in the controller .
Considerations
When considering the implementation of Multi-Function Controller Flow Controllers, several factors should be taken into account. Initial costs can be high due to the advanced technology and precision engineering involved. Operating expenses may also be significant, particularly if the system requires frequent recalibration or maintenance to ensure accuracy. Durability is generally high, but the specific environment and conditions of use can affect the lifespan of the device. Replacement and maintenance costs should be factored into the overall cost of ownership, as these can vary depending on the complexity and usage of the controller .
from Sierra Instruments, Inc.
The Model 951 is an ultra-compact digital device that is designed to operate a single unit. In addition to power, readout and set point, it offers multiple alarm points and can be easily calibrated in the field to operate both new and existing devices. It is designed for easy panel mounting (1/8... [See More]
- Control: Limit
- Form Factor: Chassis; DIN
- Features: Multi-Function; Totalizing (Length or Roll Diameter) Indication/ Control
- Interface: Digital Front Panel; Computer Programmable (optional feature)
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]
- Control: Limit
- Form Factor: Chassis; Rack; Stand-Alone
- Features: Multi-Function; Totalizing (Length or Roll Diameter) Indication/ Control
- Interface: Digital Front Panel; Computer Programmable
from Florite International, Inc.
The 900 Series is an economic one loop microcomputer-based instrument incorporating user selectable digital and analog inputs, as well as analog and relay outputs. Other 900 Series features include .005% high accuracy PID, batch, and dose control functions. Additionally, the 900 Series encompasses... [See More]
- Controller Type: Laboratory
- Features: PLC; Multi-Function; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Control: Limit; Linear; Feedforward; PID
- Form Factor: Board (optional feature); Chassis; Rack; Stand-Alone; Wall Mount
from HORIBA Instruments, Inc.
This multi-function control unit is equipped with a program setting function, pre-set function and integrating function. Multi-range function. Flow rate setting function: 6 preset values. Program control function. Flow rate indication function: simultaneous display of SET and OUT. Integration... [See More]
- Control: PID
- Form Factor: Stand-Alone
- Features: Multi-Function
- Interface: Digital Front Panel
from PMC Engineering LLC
The DPM is a multipurpose, easy to use digital dual-input process meter ideal for level, flow rate, temperature transmitter, or pressure transmitter applications. Various math functions may be applied to the inputs including addition, difference, absolute difference, average, weighted average,... [See More]
- Control: Limit
- Form Factor: Chassis
- Features: Multi-Function; Datalogger; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Interface: Digital Front Panel
from Aalborg Instruments
Microprocessor driven digital Command Modules are. used in conjunction with any analog or digital mass flow. meters or controllers with 0-5 Vdc input /output signals. One, two, three and four channel Command Module. configurations are available. Command Modules contain. appropriate power supplies,... [See More]
- Control: Limit
- Form Factor: Stand-Alone
- Features: Multi-Function; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Interface: Digital Front Panel; Computer Programmable
from Acro Associates, Inc.
Acro's Acrosense ™ Fluid Control Platform offers engineers the ability to quickly design, prototype and integrate fluid components used for developing medical device and bioprocessing systems. Our patent-pending technology consists of several preconfigured boards that enable basic to... [See More]
- Controller Type: Laboratory; Valve Controller
- Features: Multi-Function; Rate Indication/ Control; PC-Based
- Control: PID
- Form Factor: Board
from Hach
The SC200 Universal Controller is the most versatile controller on the market. It allows the use of digital and analog sensors, either alone or in combination, to provide compatibility with the broadest range of sensors. It replaces the Hach SC100 digital and GLI53 analog controllers with advanced... [See More]
- Controller Type: Laboratory; Conductivity, pH/DO
- Features: Multi-Function; Datalogger
- Control: Linear; PID
- Form Factor: Chassis; Wall, Pole
from Florite International, Inc.
The Florite Model 990X is an innovative, technically superior, high quality and reliable microcomputer-based controller suitable for any commercial or industrial application. The instruments user configurable screw-terminal channels enable any mix of up to eight inputs and or outputs regardless of... [See More]
- Controller Type: Laboratory
- Features: PLC; Multi-Function; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Control: Limit; Linear; Feedforward; PID
- Form Factor: Chassis; Rack; Stand-Alone; Table Top Mount
from PMC Engineering LLC
The PM is a multipurpose, easy to use digital process meter ideal for level, flow rate, temperature, or pressure transmitter applications. It accepts current and voltage signals. Three of the front panel buttons can be custom programmed for a specific operation. Dual Scale for Level Applications -... [See More]
- Control: Limit
- Form Factor: Chassis
- Features: Multi-Function; Datalogger; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Interface: Digital Front Panel
from Aalborg Instruments
Design Features. Displays instantaneous, total and accumulated flow rates. Built-in Flow Linearizer (10 point linearization of the flow curve). Up to 47 different volumetric and mass flow engineering units. Large 13mm (0.51") digits for flow rate and 5.5mm (0.21") for Total. Digital RS-232 or RS-485... [See More]
- Control: Limit
- Form Factor: Stand-Alone
- Features: Multi-Function; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Interface: Digital Front Panel; Computer Programmable; Network
from Florite International, Inc.
The 700 Series is an economic one loop microcomputer-based instrument incorporating a digital input, as well as a relay output. Other 700 Series features include rate metering, dual totalizing, easy menu navigation, multiple audio/visual alarm functions, a serial RS-232 port, LWAN (modem)... [See More]
- Controller Type: Laboratory
- Features: PLC; Multi-Function; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Control: Limit
- Form Factor: Board (optional feature); Chassis; Rack; Stand-Alone; Wall Mount