Frequency Volumetric Liquid Flow Switches
Description
Frequency Volumetric Liquid Flow Switches are devices designed to monitor and control the flow of liquid within a system. They detect changes in the flow rate and activate a switch to signal these changes, ensuring that the flow remains within desired parameters.
Working Principle
These flow switches operate by measuring the frequency of vibrations or changes in frequency caused by the presence of liquid. For example, a sensor's fork may vibrate at its resonance frequency, and when covered with liquid, this frequency is reduced, triggering a switch. This principle allows the device to provide reliable flow monitoring, unaffected by factors such as turbulence, bubbles, or foam . The utility of these switches lies in their ability to provide accurate and consistent monitoring of liquid flow, which is crucial for maintaining system efficiency and safety.
Applications
Frequency Volumetric Liquid Flow Switches are used in various applications, including water systems where they are typically made of materials like brass or bronze to resist corrosion and rust . They are also employed in refinery water applications for tasks such as pump protection and valve leak detection, where reliability and accuracy are paramount .
Advantages over other Materials - Metals
Plastic materials used in these switches offer advantages over metals in certain conditions. They are lightweight, extremely durable, and resistant to rust, making them suitable for applications not prone to freezing or high temperatures .
Limitations
One limitation of Frequency Volumetric Liquid Flow Switches is their dependency on the type of media they are exposed to. The material selection for the switch must consider the operating temperature and pressure to ensure durability and functionality .
Considerations
When selecting a Frequency Volumetric Liquid Flow Switch, several factors should be considered:
- Initial Costs: The choice of materials and technology can affect the initial investment required.
- Operating Expense: The efficiency and reliability of the switch can influence ongoing operational costs.
- Durability: The material and construction of the switch should be chosen based on the environmental conditions it will face.
- Accuracy: Ensuring the switch provides precise measurements is crucial for maintaining system performance.
- Replacement and Maintenance Costs: The longevity and ease of maintenance of the switch can impact long-term expenses .
from ABB Measurement & Analytics
HygienicMaster FEH610 is ideally suited for hygienic standard applications featuring all functions required - no more and no less. The perfect device for everyday applications. Simple and economical. Field-proven powerful and flexible transmitter technology. – ABB common HMI concept. –... [See More]
- Electrical Output: Current; Frequency
- Pipe Diameter: 0.04 to 4.00
- Meter Technology: Electromagnetic
- Mounting: In-line
from ABB Measurement & Analytics
HygienicMaster FEH630 – The first choice for all hygienic applications. Advanced features and functionality that enable you to operate more efficiently, reduce costs and increase profitably. Real-time diagnostic keep your process up and running. – Detecting critical process conditions at... [See More]
- Electrical Output: Current; Frequency
- Pipe Diameter: 0.04 to 4.00
- Meter Technology: Electromagnetic
- Mounting: In-line
from ABB Measurement & Analytics
ProcessMaster FEP610 is ideally suited for industrial standard applications featuring all functions required - no more and no less. The perfect device for everyday applications. Simple and economical. Field-proven powerful and flexible transmitter technology. – ABB common HMI concept. –... [See More]
- Electrical Output: Current; Frequency
- Pipe Diameter: 0.10 to 80.00
- Meter Technology: Electromagnetic
- Mounting: In-line
from ABB Measurement & Analytics
ProcessMaster FEP630 – The first choice for all industrial applications. Advanced features and functionality that enable you to operate more efficiently, reduce costs and increase profitably. Real-time diagnostic keep your process up and running. – Detecting critical process conditions... [See More]
- Electrical Output: Frequency
- Pipe Diameter: 0.10 to 80.00
- Meter Technology: Electromagnetic
- Mounting: In-line
from Litre Meter Limited
Low cost Aluminium meter for general applications with low pressures and temperatures with 3 meter sizes from 1/2" to 1" . [See More]
- Electrical Output: Current; Frequency; Voltage
- End Fittings: In-line Flanged (optional feature); In-line Threaded
- Mounting: In-line
- Meter Type: Volumetric Flow Meter
from Clark Solutions
Model DTH08 calorimetric flow sensor measures and monitors liquid flow. Its compact design makes it suitable for a wide variety of applications. Depending on the model, the device can be fitted with an analog output (4 – 20 mA or 0 – 10 V) and a switched or frequency output. The sensor... [See More]
- Electrical Output: Current; Frequency; Voltage
- Pipe Diameter: 0.24 to 0.39
- Meter Technology: Thermal
- Mounting: In-line
from Clark Solutions
Model DOZ01 flow sensors are used wherever the flow of liquids having different viscosities must be reliably and economically measured, such as in the following cases: Central lubrication systems. Transformer oils. Aggressive/caustic liquids in the chemical industry. The model DOZ01 flow sensor with... [See More]
- Electrical Output: Current; Frequency
- Pipe Diameter: 0.25
- Meter Technology: Oval Gear
- Mounting: In-line
from Clark Solutions
The DV08 flow meter is fitted with twin helical screws, which rotate in opposite directions due to the flow of product being monitored. The rotational speed is proportional to the flow rate. The rotary motion of the screws is detected by a sensor which emits two pulses per revolution. Each pulse... [See More]
- Electrical Output: Current; Frequency; Voltage
- Pipe Diameter: 1.00 to 2.00
- Meter Technology: Screw Spindle
- Mounting: In-line