Our Sensors > Flow Sensors
- Corrosion-resistant plastic housing
- Simple teach-in start-up
- Maintenance-free operation
- M32 cable gland for pressure-resistant fitting
- Adjustments via Potentiometer or teach-in
- Various designs available
8025BFKM 231.194 S4 Flow Sensors analog , 0°C up to 50°C
24V DC ± 15%,4-20 mA,
Housing Material: PBT,Length: 80mm , Plug S4 (M12 x 1 A)
Data sheet »8027JFKMT 231.194 S4 Flow Sensors analog , -25°C up to 70°C
24V DC ± 15%,4-20 mA,
Housing Material: Kunststoff (PTFE),Length: 84mm , Plug S4 (M12 x 1)
Data sheet »8046AFKM 240.18 G S4 Flow Sensors , -10°C up to 60°C
24V DC ± 15%,PNP Schließer + Öffner,
Housing Material: PBT,Length: 80mm , Plug S4 (M12 x 1 A)
Data sheet »8047AFKMT 240.18 G S4 Flow Sensors , 0°C up to -10°C
24V DC ± 15%,PNP Schließer + Öffner *,
Housing Material: PTFE / Anschlussseite PBT,Length: 84mm , Plug S4 (M12x1 A)
Data sheet »8048AFKM 241.18 G S4 Flow Sensors , -10°C up to 60°C
24V DC ± 15%,PNP Schließer + Öffner *,
Housing Material: PBT,Length: 80mm , Plug S4 (M12x1 A)
Data sheet »8049AFKMT 241.18 G S4 Flow Sensors , -10°C up to 60°C
24V DC ± 15%,PNP Schließer + Öffner *,
Housing Material: PTFE / Deckel: PBT,Length: 84mm , Plug S4 (M12 x 1 A)
Data sheet »
Flow sensors from Proxitron can monitor the flow speed of media in gas form to enable the simple and effective control of flow processes. The basis of this sensor system is the calorimetric principle.
It makes use of the cooling effect on a surface of a medium flowing past it, similar to how your finger feels cold when held up in the wind. On a flow sensor, the surface of the sensor is heated up to a defined temperature. If this surface is exposed to a flow, the sensor surface cools down. The stronger the flow, the stronger the cooling effect, which serves as a measure of the flow speed. The cooling effect of the flow is analysed electronically, and the flow sensor delivers an output signal based on this, according to the version, which can be used to monitor the flow.
The possible uses of flow sensors are highly diverse, ranging from general air-conditioning technology to extraction systems. In contrast to indirect flow monitoring, which monitors the rotational movement of fans or pumps, with this principle the flow of the medium is monitored directly, therefore also enabling detection of soiled filters and congestion or blockages in the flow circuit. The adjustable flow value can provide advance warning of the flow dropping below a minimum acceptable limit, for example, to promptly initiate maintenance work on an exhaust system. The zero-maintenance and wear operation of Proxitron flow sensors means they are superior to other sensor systems such as air direction relays and vane anemometers, and makes them the preferred choice wherever reliable and fault-free flow monitoring is required.
Flow sensors from Proxitron are available in various designs. In most cases, flow sensors for gases (also known as air flow monitors) are provided with a compact plastic housing that enables easy installation in existing exhaust air systems or ventilation systems. The design of the sensors in a seamlessly sealed housing makes them particularly suitable for use in environments with high levels of contamination. Proxitron air flow sensors (air flow monitors) in an all-plastic housing are at home wherever aggressive chemical atmospheres prevail. They can even withstand exhaust air containing sulphuric acid from electroplating baths and work trouble-free for many years.
Application areas
Exhaust monitoring ● Air-conditioning technology ● Exhaust systems ● Pump monitoring ● Filter monitoring ● Bearing cooling systems ● Building technology ● Electroplating ● Chemical industry ● Labs and educational facilities ● Sewage treatment plants ● Offshore ● Food processing industry ● Shipbuilding ● Wood processing ● Combined heat and power plants ● Paper processing ● EDP data centres ● Nuclear research
Variants with different switching output types or with analogue output are available. The devices are available with fixed connection cables of different lengths or with a conventional M12 plug connection. Proxitron flow sensors are also characterised by their simple operation. At the touch of a button, the sensor detects the existing flow and sets the flow limit value so that a stall is reliably detected. This offers a wide range of possible applications in various industrial sectors, as well as in air conditioning technology and building automation. Matching accessories round off the programme and enable, among other things, the pressure-resistant installation of the sensors. Wherever a powerful and cost-effective solution for flow monitoring is required, we are glad to provide you with our expertise.
Special features
maintenance-free ● wear-free ● Compact design ● Easy to operate ● Cost-effective ● DC operating voltage ● Different switching variants ● 0-10 V or 0/4-20 mA output ● Chemically resistant, all-plastic housing
Do you require customised advice?
Write to us by email at sales@proxitron.de, use our contact form or call us on 04121 2621-0.
Our team will be pleased to advise you and provide you with all the information you need!