Tube Liquid Sensor

The OPB350 series liquid Sensor is designed to work with 1/16 [1.6mm] 1/8 [3.2mm], 3/16 [4.8 mm] and 1/4 [6.3 mm] outside diameter clear tubes. When output reference circuitry is added, multiple output states such as fluid present, no fluid present and no tube present CAN be recognized. Clear liquid present causes the Phototransistor to sink the maximum current, while dark liquid present causes it to sink the minimum current. As bubbles pass through the tube, the signal will vary between the liquid present and no liquid states. If no tube is present, the Phototransistor sinks current between the dark fluid and clear Fluid states. The customer will have to identify the typical current values for each situation. The ratio between the different stated allows acknowledgement of different conditions. By Optek Technology, Inc.
OPB350 's PackagesOPB350 's pdf datasheet

OPB350 Pinout, Pinouts
OPB350 pinout,Pin out
This is one package pinout of OPB350,If you need more pinouts please download OPB350's pdf datasheet.

OPB350 Application circuits
OPB350 circuits
This is one application circuit of OPB350,If you need more circuits,please download OPB350's pdf datasheet.

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