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OPB350L187 Datasheet(PDF) 1 Page - OPTEK Technologies |
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OPB350L187 Datasheet(HTML) 1 Page - OPTEK Technologies |
1 / 4 page OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com Issue A.4 02/06 Page 1 of 4 Tube Liquid Sensor OPB350 Series Applications: • Non-contact fluid sensing • IV fluid • Oils and other petroleum products • Colored fluids • Toner fluids • Water Ordering Information Part Number Package LED Peak Wavelength Sensor Tube Size Lead Length / Spacing OPB350 N 890 nm Transistor 0.125" 0.330” / 0.320” OPB350L187 0.187" OPB350L250 0.250" OPB350W187Z 0.187" 24" / 26 AWG Wire OPB350W250Z 0.250" T Features: • Can identify if liquid is present in clear tubes that have an outside diameter of 1/8" (3.2mm), 3/16" (4.8mm) or 1/4" (6.3mm) • Opaque plastic housing enhances ambient light rejection • Printed circuit board mounting or 24” (610 mm) wires Description: The OPB350 series liquid sensor is designed to work with 1/8” (3.2mm), 3/16” (4.8mm) and 1/4” (6.3mm) 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 liquid is present, the phototransistor sinks only a small amount of current. If no tube is present, the phototransistor sinks a larger current than in the “no liquid” state. Smaller outside diameter tubes can be used when the tube is sized up to one of the standard sizes and is fitted properly in the housing opening. For example, fluid in a 1/16” (1.6mm) outside diameter tube can be sensed when a piece of tubing with a 1/8” (3.2mm) outside diameter and a 1/16” (1.6mm) inside diameter is used as an adapter. Product Photo Here Opto Switch LM393 or LM339 LM393 or LM339 Vcc Gnd Vcc Vth Vth Vth Gnd Vth1 1 2 2 Output Output 1 2 Typical Application Circuit 4 OPB350 “N” Package “T” Package RoHS |
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