Technical data of sensor:
General
Fast-reacting air flow sensor with movable flange for installation in air ducts. With
temperature compensation, suitable for media with rapid temperature changes.
Medium temperature -20…+100°C
Compensation behavior (Reaction speed on change in medium temperature) fast, approx. 0.3 s
Installation depth 35 resp. 150 mm
Sensor tube diameter 10 mm
Sensor tube material nickel-plated brass
Measuring element
Insensitive to moisture (can be cleaned inwater). Sensitive to mechanical deformation (care must be taken when cleaning with hard objects).
Protection class IP67
Electrical connection
Terminal strip accessible after removal of cover. 3-wire connection to evaluation unit
Mounting conditions
The sensor tip should be placed in the midst of the pipe and must be bathed completely from the medium. Please provide a straight pipe: 5x the pipe diameter before and after the sensor device.
Technical data of evaluation unit:
Power supply 230 VAC or 24 VAC/DC
(see Product Summary)
Power consumption approx. 3 VA
Contact load
Relay, single pole 8 A, max. 250 VAC
Ambient temperature 0 – 60°C
Flow rate
Adjustable from 0.1 to 20 m/s for gaseous media
Response time 1…5 s
Temperatures > 80 °C, degree of contamination and flow velocity will reduce the response time.
Repetition accuracy
<2%, relative to the flow rate directly on the sensor.
Switching hysteresis approx. 2% of overall range
Max. cable length between sensor and evaluation unit
100 m, for shielded cable 1.5 mm2
Sensor protection
In case of breakage or interruption of the
sensor wires, the unit switches off or an
interruption of flow is signaled.
Type of construction Standard housing N 45
Weight approx. 0.35 kg