Overview
| Product characteristics | Waterproof | Imported or not | No |
| Producing area | Shenzhen | Brand | VOLKE |
| Model | FCI thermal conductivity flow switch | 3C rated voltage range | 36V and below |
| Working voltage | DC24V | Overload current | 2A |
| Lifetime times | Long lifespan | Protection level | IP67 |
| Product Certification | Certificate of conformity | Processing customization | Yes |
Product Details
Product Name: Boiler Water Circulating Water Flow Switch 4-20mA Analog Current Remote Signal Output Flow Switch
Product Description: The flow switch can monitor the flow of liquid in the pipeline in real-time, providing 4-20mA output, and using 6 LEDs to display the flow rate status in real-time The flow switch achieves the following monitoring functions: online monitoring of the flow rate of fluid in the pipeline It is applied in industries such as petrochemical, power, metalurgy, steel mills, papermaking, food processing, water treatment, battery factories, etc
Characteristics
Fully waterproof shell design, waterproof adjustment knobIt can effectively prevent the angle of angled materials in the medium. Suitable for a wide range of pipe diameters and can be adjusted freelyOptional high voltage type, with a stand voltage of up to 600Bar; Optional anti correction type The indicator light directly displays changes in flow rate
Working principle
Flow switch
Main technical parameters
Flow switch (analog signal output flow switch), which can easily set the corresponding flow rate of 4-20mA Loosen the protective thread and adjust the bottom knob with a threaded know to set the low and high flow points
The meaning of its LED indication is as follows:
-Red light on, flow rate at low flow rate (output at 4mA at this time)
-The green light is fully on, and the flow rate is at high flow rate (at this time, the output is 20mA)
Structure Description
Installation instructions
Knowledge extension:
Do you understand the installation and use of water flow switches?
The water flow switch, also known as the flow switch, is applied in the water system of children and air conditioning engineering to ensure the safety and effective operation of the air conditioning system Usually, the water flow switch can only qualitatively ensure the safety and effective operation of the air conditioning system when applied, and cannot quantitatively and accurately set the flow value when the water flow switch is closed and open When the water flow rate changes, the force generated by the water flow on the target causes the lever to rotate, closing or disconnecting the control circuit, there being the purpose of automatic control Control
The water flow switch insists of a magnetic core, a return spring, a forced copper or polycarbonate casing, and a sensor The function of the water flow switch is:
1. Detect where the liquid is in the pipeline flows and where the amount of flow (flow rate, ie. liquid flow pressure) meets the requirements, while outputting (providing) a signal on/off state through the switch electrical contact
2. The equipment system judges the working condition of the Plumbing by detecting where there is a signal or control current passing through the switch (on/off state of the electric contact of the water flow switch), and gives the corresponding control or operation mode or measures
1. Working principle
When the water flow rate in the pipeline is greater than 0.75L/min, the magnetic core generates display under the action of water flow and drives the magnetic source to generate magnetic control, causing the sensor to output a ^ ^ 1 ^ ^ switch signal This signal is input to the equipment control system, and after power amplification, the purpose of water flow control is achieved When the water flow rate in the pipeline is less than 0.75L/min, the magnetic core drives the magnetic source to return to its position under the rust of the reset spring, causing the sensor to output a ^ ^ 0 ^ ^ switch signal and stop the system's operation
2. Installation method
Vertical installation: When installed vertically, it should be installed on the pipe section that flows from bottom to top
Horizontal installation: When installing on the upper end of a horizontal pipeline, ensure that the medium is full to prevent the probe from only coming into contact with air and not the medium
Inverted installation: When installed at the lower end of a horizontal pipeline, it should be ensured that there is no division at the bottom of the pipeline to prevent the probe from being covered by division and unable to fully contact the probe