OPB350L250 OPTEK TECHNOLOGY, OPB350L250 Datasheet

OPB350L250

Manufacturer Part Number

OPB350L250

Description

Liquid Level Sensor

Manufacturer

OPTEK TECHNOLOGY

Datasheet

1.OCB350L062Z.pdf (8 pages)

Specifications of OPB350L250

Output Current

50mA

Body Material

Plastic

Supply Voltage Range Dc

4.75V To 5.25V

Leaded Process Compatible

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 8
Download datasheet (986Kb)

Tube Liquid Sensor

OPB350 / OCB350 Series

(Calibration Circuit Available)

OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747

Features:

•

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

device could not be calibrated

calibration point

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.

RoHS

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

Applications:

•

OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.

Non-contact fluid sensing

IV fluid

Oils and other petroleum products

Colored fluids

Toner fluids

Water

(Blue

LED) or lower than the calibration point

(Red

FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

LED) and when the analog output has reached the logical trip higher than the

(Green

LED). The internal phototransistor load

Package

Product Photo Here

“N”

Package

“T”

(Green

LED), that the

Package

“C”

Issue C.1

Page 1 of 8

03/09

Related parts for OPB350L250

OPB350L250 Summary of contents

Page 1

... OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. RoHS OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 LED) and when the analog output has reached the logical trip higher than the (Green FAX: (972) 323-2396 sensors@optekinc ...

Page 2

... 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. ...

Page 3

... OPB350L125 & OPB350W125 Ratio OPB350L187 & OPB350W187 OPB350L250 & OPB350W250 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 (T =25° ...

Page 4

... Tube Liquid Sensor OPB350 / OCB350 Series (Calibration Circuit Available) OPB350 Dot OPB350L187 and OPB350L250 Dot Dot Solder pad Information OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue C.1 03/09 Page OPB350L062 & OPB350W062Z OPB350L125 & ...

Page 5

... KΩ ±0.02 AWG = 28 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 OCB350 OCB-MC24 Length = 24” [610mm] FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com J1— ...

Page 6

... OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible. Issue C.1 03/09 Page while “Logic Out B” switches when the optical signal decreases CC 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 ...

Page 7

... R5 C2 0.1µf 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 (T =25°C unless otherwise noted 25° ...

Page 8

... CE 0 100 Fall Rise OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (972) 323-2200 or (800) 341-4747 ( ) Normalized I vs Temperature C(ON) Normalized @ T=20°C -40 - Temperature (°C) Test Circuit (Rise & Fall Time) FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com ...

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