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OPB350

OPTEK Technologies
Part Number OPB350
Manufacturer OPTEK Technologies
Description Tube Liquid Sensor
Published Aug 1, 2008
Detailed Description Tube Liquid Sensor OPB350 / OCB350 Series (Calibration Circuit Available) Features: • Can identify if liquid is present ...
Datasheet PDF File OPB350 PDF File

OPB350
OPB350

Overview
Tube Liquid Sensor OPB350 / OCB350 Series (Calibration Circuit Available) Features: • 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] or 1/4" [6.
3 mm] • Opaque plastic housing enhances ambient light rejection • Printed circuit board mounting or 24” (610 mm) 26 AWG wires “N” Package “C” Package “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 int...


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