This is a switch for detecting the flow direction of compressed air or gas.
The VA409 thermal wind direction switch is a device designed to detect the flow direction of compressed air or gas, particularly in closed-loop circulation piping lines. By using the VA409, which has a wind direction display function, the wind direction of compressed air can be detected safely and quickly. Compared to traditional mechanical paddle wind direction switches, the VA409 can rapidly detect even slight changes in wind direction without any mechanical movement. Wind direction information is transmitted via potential-free contacts (normally closed, max. 60VDC, 0.5A) to flow sensors VA400/VA420 or individual building management systems (mbs). Additionally, the wind direction is indicated by two LEDs. By linking two flow sensors VA400/VA420, it is possible to accurately measure the inflow and outflow of compressed air in closed-loop circulation piping lines. **Features** - Detects changes as small as 0.1 m/s (reference: 20°C, 1000 hPa) - No mechanical movement used - Easy installation even under pressure For more details, please contact us or download the catalog.
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【Specifications】 ○ Wind direction detection range: < 0.1 m/s (reference: 20℃, 1000 hPa) ○ Measurement principle: Thermal mass flow measurement ○ Sensor: Pt 30 / Pt 700 / Pt 330 ○ Measured gases: Air, gas ○ Operating ambient temperature: 0 to +50℃ (probe section) -20 to +70℃ (housing) ○ Operating pressure: Up to 1.6 MPa ○ Power supply: 24 VDC, 40 mA ○ Input: Max. 80 mA, up to 24 VDC ○ Protection class: IP 54 ○ EMV: Complies with DIN EN 61325 ○ Connection: 2 × M12, 5-pole, plug A or B ○ Two potential-free contacts 2 × U max. 60VDC, I max. 0.5A (normally closed) Normally open available upon request ○ Housing: Polycarbonate ○ Probe: Stainless steel 1.4301 (equivalent to SUS304) Length: 160mm × φ10mm Safety ring: φ11.5mm ● For more details, please contact us or download the catalog.
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Since its establishment in 1931, our company has consistently adhered to the motto of "delivering superior measuring instruments in a timely manner." We have walked the path of a specialized trading company that responds to the requests and diverse needs of various industries by providing the latest measuring instruments and control systems. In recent years, technological innovations centered around advanced information technology have continued to evolve at an unprecedented speed. The transformation of industrial structures, the creation of diverse services, and the inclination towards more comfortable products have accelerated, and automation systems linked with computers have demonstrated remarkable performance, functionality, and operability, representing mechatronics. In this context, the role of measuring instruments is extremely significant, and we are confident that the products we handle, utilizing cutting-edge technology, can contribute to industry and society. The homepage we present here features a collection of products from manufacturers that are directly addressing information-related, energy-related, and global environmental conservation issues as we move into the 21st century, and we confidently recommend them. We kindly ask for your continued support and patronage.
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