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
Product Photo Here
“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
RoHS
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
Page 1 of 8
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
Tube Liquid Sensor
OPB350 / OCB350 Series
(Calibration Circuit Available)
COMPLETE PART NUMBERS OF OPB350 AND OCB350 SERIES
OPB350
OPB350L062
OPB350W062Z
OPB350L125
OPB350C125Z
OPB350W125Z
OPB350L187
OPB350W187Z
OPB350L250
OPB350W250Z
OCB350L062Z
OCB350L125Z
OCB350L187Z
OCB350L250Z
PCB mount for 1/8” tubing
PCB mount for 1/16” tubing
Wired assembly for 1/16” tubing, with mounting tabs
PCB mount for 1/8” tubing
Wired assembly for 1/8” tubing, mounting tabs & Molex connector 50-57-9404
Wired assembly for 1/8” tubing, with mounting tabs
PCB mount for 3/16” tubing
Wired assembly for 3/16” tubing, with mounting tabs
PCB mount for 1/4” tubing
Wired assembly for 1/4” tubing, with mounting tabs
OPB350L062 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable
OPB350L125 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable
OPB350L187 mounted on OCB100AZ calibration circuit board, with OCB-MC24 cable
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
e(APT)
is a measurement of the average apertured radiant energy incident upon a sensing area 0.250” (6.350 mm) in diameter, which is
perpendicular to and centered to the mechanical axis of the emitting surface at a distance of 0.466” (11.837 mm).
E
e(APT)
is not necessarily uniform within the measured area.
(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
C(ON)
when the tube is filled with water divided by the I
C(ON)
with an empty tube.
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
Page 2 of 8
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
Tube Liquid Sensor
OPB350 / OCB350 Series
(Calibration Circuit Available)
Absolute Maximum Ratings
(T
A
=25°C unless otherwise noted)
Storage Temperature
Operating Temperature
Lead Soldering Temperature [1/16 inch (1.6 mm) from the case for 5 sec. with soldering iron]
(2)
LED
Forward DC Current
Peak Forward Current (2
μs
pulse width, 0.1% duty cycle)
Reverse DC Voltage
Power Dissipation
Output Phototransistor
Collector-Emitter Voltage
Collector DC Current
Power Dissipation
24 or 30 V
50 mA
100 mW
50 mA
1A
2V
100 mW
-40° C to +100° C
-40° C to +85° C
260° C
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITIONS
Input LED
(See OPB245 for additional information — for reference only)
V
F
I
R
Forward Voltage
Reverse Current
-
-
-
-
1.7
100
V
µA
I
F
= 20 mA
V
R
= 2.0 V
Output Phototransistor
(See OP555 [OPB350] & OP750 [-062, -125, -187 & -250] for additional information— for Ref. Only)
V
(BR)CEO
I
CEO
Coupled
V
CE(SAT)
Collector-Emitter Saturation Voltage
On-State Collector Current
OPB350L062 & OPB350W062Z
OPB350
OPB350L125 & OPB350W125Z
OPB350L187 & OPB350W187Z
OPB350L250 & OPB350W250Z
OPB350L062 & OPB350W062Z
OPB350
OPB350L125 & OPB350W125
OPB350L187 & OPB350W187
OPB350L250 & OPB350W250
-
0.30
1.00
1.30
1.00
0.75
-
-
-
-
-
-
0.8
3.5
2.6
2.0
1.5
3.0
3.0
2.5
2.3
2.3
0.4
1.3
6.0
3.9
4.0
3.0
-
-
-
-
-
V
I
C
= 100
μA,
I
F
= 5 mA
Collector-Emitter
OPB350
Breakdown Voltage -062, -187 & -250
Collector-Emitter Dark Current
30
24
-
-
-
-
-
-
100
V
nA
I
C
= 100
μA,
E
E
= 0 mw/cm
2
V
CE
= 10 V, I
F
= 0, E
E
= 0 mw/cm
2
I
C(ON)
mA
V
CE
= 0.4 V, I
F
= 5 mA
On/Off
Ratio
-
V
CE
= 0.4 V, I
F
= 5 mA , I.D.=0.0312”
(6)
V
CE
= 0.4 V, I
F
= 5 mA , I.D.=0.0625”
(6)
V
CE
= 0.4 V, I
F
= 5 mA , I.D.=0.0870”
(6)
V
CE
= 0.4 V, I
F
= 5 mA , I.D.=0.1250”
(6)
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 E 11/2011
Page 3 of 8
Tube Liquid Sensor
OPB350 / OCB350 Series
(Calibration Circuit Available)
OPB350
OPB350L062 & OPB350W062Z
OPB350L125 & OPB350W125Z
0.625 [15.88]
0.300 [7.62]
Anode
Cathode
Collector
Emitter
White Dot to
Identify LED
Anode Lead
Cathode
Anode
Collector
Emitter
0.625 [15.88]
60°
0.100 [2.55]
0.313 [7.94]
0.110 [2.79]
0.300 [7.62]
0.020 [0.51]
Ø0.125 [Ø3.17]
4X .125 MIN.
0.100 [2.54]
0.474 [12.04]
Dot
0.110 [2.79]
0.525 [13.34]
4X 24.00" MIN
4X
o
.020 [0.51]
0.056 [1.42]
2X Ø0.125 [Ø3.18]
0.895 [22.73]
0.448 [11.37]
Ø0.063 [Ø1.59]
0.150 [3.81]
1.165 [29.59]
OPB350L187 and OPB350L250
OPB350W187Z and OPB350W250Z
Dot
Dot
Solder pad Information
DIMENSIONS ARE IN:
[ MILLIMETERS]
INCHES
4
1
Pin
1
2
LED
Anode
Cathode
Pin # Transistor
4
3
Emitter
Collector
2
3
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
Page 4 of 8
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
Tube Liquid Sensor
OPB350 / OCB350 Series
(Calibration Circuit Available)
OCB350
Shorting Bar Position
3
2
1
Load
Resistance
~27 KΩ
~9.6 KΩ
~2.5 KΩ
J1—Pin # 6
J-1
Pin #
1
2
3
4
Function
Vcc
Logic Out A
Logic Out B
Calibrate
Analog Out
Ground
OCB100-MC24
Color
Red
Orange
Blue
Green
White
Black
0.125”
5
6
±0.02
OCB-MC24
AWG = 28
Length = 24” [610mm]
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 E 11/2011
Page 5 of 8
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