Tube Liquid Sensor OPB350 / OCB350 Series (Calibration Circuit Available) N Features: C Package Package Can identify if liquid is present in clear tubes that have an outside diameter of 1/16 1.6mm , 1/8 3.2mm , 3/16 4.8 mm Product Photo Here or 1/4 6.3 mm Opaque plastic housing enhances ambient light rejection Printed circuit board mounting or 24 (610 mm) 26 AWG wires T Package Description: 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 states allows acknowledgement of different conditions. The OPB350L series have leads that are designed to mount directly to PCBoards. The OPB350W series with 26 AWG wires are remote mountable. The OCB350 series provides a full solution with automatic calibration capability and a preset trip level. The OCB350 series is configured to optimize the design effort needed to use a fluid sensor with the addition of self calibration circuitry. The OCB350 series are easy to use requiring only an optical device and power supply. Four lights are provided on the board that acknowledge when the device is calibrated (Green LED), that the device could not be calibrated (Red LED) and when the analog output has reached the logical trip higher than the calibration point (Blue LED) or lower than the calibration point (Green LED). The internal phototransistor load resistance can be set for three different values (~2.5K, ~9.6K or ~27K Ohms). A Reset/Clear pin is provided for remote signaling to calibrate of the system. The OCB350 series comes with an OPB350L Z, PCBoard, interface cable (OCB100-MC24) and all the necessary electronics required for sensing either transmissive or opaque fluids. See Theory of Operation for detailed information. For a custom PCBoard design for your unique challenge, contact your OPTEK representative. Applications: Non-contact fluid sensing IV fluid Oils and other petroleum products Colored fluids Toner fluids Water OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. RoHS Issue E 11/2011 OPTEK Technology Inc. 1645 Wallace Drive, Carrollton, Texas 75006 Page 1 of 8 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors optekinc.com www.optekinc.com Tube Liquid Sensor OPB350 / OCB350 Series (Calibration Circuit Available) COMPLETE PART NUMBERS OF OPB350 AND OCB350 SERIES OPB350 PCB mount for 1/8 tubing OPB350L062 PCB mount for 1/16 tubing OPB350W062Z Wired assembly for 1/16 tubing, with mounting tabs OPB350L125 PCB mount for 1/8 tubing OPB350C125Z Wired assembly for 1/8 tubing, mounting tabs & Molex connector 50-57-9404 Wired assembly for 1/8 tubing, with mounting tabs OPB350W125Z OPB350L187 PCB mount for 3/16 tubing Wired assembly for 3/16 tubing, with mounting tabs OPB350W187Z OPB350L250 PCB mount for 1/4 tubing Wired assembly for 1/4 tubing, with mounting tabs OPB350W250Z OCB350L062Z OPB350L062 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable OCB350L125Z OPB350L125 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable OCB350L187Z OPB350L187 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable OCB350L250Z OPB350L250 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable Notes: (1) All parameters tested using pulse technique. (2) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (3) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and key- tones. (4) Derate linearly 1.33 mW/ C above 25 C. (5) E is a measurement of the average apertured radiant energy incident upon a sensing area 0.250 (6.350 mm) in diameter, which is e(APT) perpendicular to and centered to the mechanical axis of the emitting surface at a distance of 0.466 (11.837 mm). E is not necessarily uniform within the measured area. e(APT) (6) The on/off ratio is referenced to the I.D. as specified for a clear PVC tube with O.D. per the device dimensions. The ratio is calculated by the I when the tube is filled with water divided by the I with an empty tube. C(ON) C(ON) OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue E 11/2011 OPTEK Technology Inc. 1645 Wallace Drive, Carrollton, Texas 75006 Page 2 of 8 Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors optekinc.com www.optekinc.com