Page 20 of catalogue Non-Contact Pneumatic Sensors of Festo AG & Co. KG

Non-Contact Pneumatic Sensors
Air Barrier Sensors Air Barrier Units Sender Type SFL-100-S
P Type SFL-100-F

Type SFL-100-S

Receiver Type SFL-100-F
P

Pneumatic output signal

The air barrier is used as a non-contact sensing device for distances up to 4.0 in / 100 mm; for example, in detecting objects in an indefinite position or laying at varying distances from the nozzle (molded parts).

Both sender and receiver nozzles are connected to the compressed air supply at connection P. The air has a pressure of 1.5 to 3 psi / 0.1 to 0.2 bar and should be dry and oil free. Air is continuously emitted from the receiver nozzle to prevent contamination and to assist in signal generation. Air ejected through the nozzle disrupts the free flow of air at the receiver. A back pressure is generated, producing a signal pressure ≥ 0.007 psi / 0.5 m bar at outlet A of the receiver. This signal pressure is then raised to the desired working pressure by an amplifier. If any object disrupts the flow of air between the sender and receiver, the output signal at receiver port A drops to zero.

SFL-100-S

SFL-100-F

P = Supply A = Outlet

Order Number Part No./Type Medium Mounting Mounting Hole Diameter Connection Supply Pressure Range at P* Supply Pressure, Max. Supply Pressure Range at A Air Consumption at 1.5 psi / 0.1 bar Max. Nozzle Range Ambient Temperature Design Material Weight

100430 SFL-100-S 100431 SFL-100-F Compressed air (filtered, unlubricated) M22 x 1 with mounting Nuts 0.89 in / 22.5 mm Barbed fitting for 1/4 in / 4 mm tubing 1 to 3 psi / 0.1 to 0.2 bar 6.0 psi / 4 bar 7.5 psi / 0.5 bar -0.07 in Hg / -0.002 bar to supply pressure 0.3 SCFM / 8.5 l/min 4.0 in / 100 mm -40 to +212°F / -40 to +100°C† Nozzle, no moving parts Housing: Al, brass 0.110 lb / 0.050 kg † Depending on tubing used Subject to change

* 14 to 140°F / -10 to +60°C temperature range of medium

202

(Ref 2.340r) (10.85)