VA409 Compressed Air Flow Direction Sensor
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- No mechanical wear parts
- Easy installation under pressure
- Detects the smallest changes < 0.1 m/s relative to 20 °C and 1,000 mbar
The direction information in form of a potential-free contact (normally closed max. 60 VDC, 0.5 A) is transferred to the consumption sensors VA 500/ VA 520 or to a separate building management system (mbs). Two LEDs show the flow direction.
In connection with 2 consumption sensors VA 500/ VA 520 incoming and outflowing compressed air in closed circular pipelines can be measured precisely.
Flow direction switch VA 409 with direction indication serves to determine the flow direction of compressed air and gases especially in closed ring main applications. Flow sensor VA 409 is able to detect even the smallest changes in the flow direction quickly. Using the VA 409 with flow direction indication, the flow direction of the compressed air can be determined quickly and easily. The direction information in form of a potential-free contact (normally closed max. 60 VDC, 0.5 A) is transferred to the flow sensors VA 400/VA 420 or to a separate building management system (mbs). Two LEDs show the flow direction. In conjunction with 2 flow sensors, either VA 400/VA 420 incoming and outflowing compressed air in closed circular pipelines can be measured precisely.
Features:
- Detects smallest changes
- < 0.1 m/s referred to 20 °C and 1000 mbar
- No mechanical wear parts
- Easy installation under pressure
Specs
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Product Specification
Below is the product specification of the VA409 Compressed Air Flow Direction Sensor from CS Instruments. If you require further information, please contact our expert customer service advisors on 01722 442 307.
Response area detection of direction:
< 0.1 m/s relative to 20 °C and 1000 mbar
Measuring principle:
Calorimetric measurement
Sensor:
Pt 30/ Pt 700/ Pt 330
Measured medium:
Air, gases
Operating temperature:
0…50 °C sensor tube-20…70 °C housing
Operating pressure:
Up to 16 bar
Power supply:
24 VDC, 40 mA
Current consumption:
Max. 80 mA to 24 VDC
Protection class:
IP 54
EMC:
in acc. with DIN EN 61326
Connection:
2 x M12, 5-pin, plug A and plug B
2 potential-free contacts:
2 x U max. 60 VDC, l max 0.5 A (normally closed); on request: Normally open
Housing:
Polycarbonate
Sensor tube:
Stainless steel, 1.4301, length 160 mm, Ø 10 mm, safety ring Ø 11.5 mm, longer sensors on request
Mounting thread:
G 1/2″
Housing diameter:
65mm
Direction indication:
2 LED’s