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OPTEK Technologies

OPB350 Datasheet Preview

OPB350 Datasheet

Tube Liquid Sensor

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Tube Liquid Sensor
OPB350 Series
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
“N”
Package
Product Photo Here
“T”
Package
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
www.DataSfhlueidetp4rUes.ceonmt” 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.
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
OPB350
0.125"
OPB350L187
N
0.187"
OPB350L250
890 nm Transistor 0.250"
OPB350W187Z
OPB350W250Z
T
0.187"
0.250"
Lead Length /
Spacing
0.330” / 0.320”
24" / 26 AWG Wire
Typical Application Circuit
Vcc
Vth 1
4
Vth 2
Opto Switch
OPB350
LM339
or
LM393
Output 1
Vth 1
Gnd
Vcc
LM339
or
LM393
Output 2
Vth2
Gnd
RoHS
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




OPTEK Technologies

OPB350 Datasheet Preview

OPB350 Datasheet

Tube Liquid Sensor

No Preview Available !

Tube Liquid Sensor
OPB350 Series
OPB350
Pin #
1
2
LED
Anode
Cathode
Pin # Transistor
3 Collector
4 Emitter
13
www.DataSheet4U.com
Dot
Pin #
1
2
LED
Anode
Cathode
Pin # Transistor
3 Collector
4 Emitter
13
24
OPB350W187Z and OPB350W250Z
24
OPB350L187 and OPB350L250
Dot
Dot
Pin #
Red
Black
LED
Anode
Cathode
Pin #
White
Green
Transistor
Collector
Emitter
Red-1
White-3
Black-2
Green-4
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.4 02/06
Page 2 of 4
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


Part Number OPB350
Description Tube Liquid Sensor
Maker OPTEK Technologies
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OPB350 Datasheet PDF






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