UZB3
Series
SCREW FITTING MINI
PHOTOELECTRIC
SENSORS
A new approach
A new concept in design
Gives a new meaning to ease of use
The next-generation new UZB series. A new alternative to fiber sensors
The UZB3 series have a radically new
form which has been developed in
response to the many calls for sensors
to be easier to install. This new form
which fits into the mounting holes for the
M4 thru-beam type and M6 reflective
type of sensors with their standard fiber
sizes represents an improvement in
previous design and installation
techniques, so that these new sensors
can be incorporated into the production
line as-is.
Laser marker for
marking lot No.
M4
(Reflective type: M6)
Thru-beam type(UZB31M)
is a global brand name of Matsushita Electric Works.
Simpler design
New design solves all weak points of fiber sensors
All you need to do is make a φ 4mm .157inch hole where you
would like to stop or check the workpiece (φ 6mm .236inch hole
for reflective type).
Furthermore, the center of the sensing axis is the same as the
center of the mounting hole, which makes it much easier to set
the sensing position.
The UZB3 series solves all of the difficulties associated
with fiber sensors, such as:
• Difficulty finding a suitable place for the amplifier
• Fragility of the fiber
• Extra space needed because of difficulty in bending the fiber
• The nuisance of having to use a protective tube to prevent
fiber breakages
[No amplifier needed]
The amplifier is built in, so a separate amplifier is not required.
Fiber sensor
Center of sensing axis
Center of mounting hole
New concept in shape
Can be installed in the same way as standard fibers
UZB3 series can be screw-mounted (M4 for thru-beam type,
M6 for reflective type) in the same way as standard fiber sensors. This means that they can be inserted into production lines
in exactly the same way as conventional high-priced fiber sensors.
M4
Thru-beam type (UZB31M)
(Reflective type: M6)
UZB3
No separate
amplifier
needed!
[Unbreakable]
A cabtyre cable is used, so that the sensor cable will not break
like conventional fiber.
[Takes up very little space]
Unlike conventional fibers, bending radius is not a problem, so
that the sensor can be securely installed alongside conveyors.
UZB3
Actual size
2
Fiber
[No protective tube needed]
The UZB3 series has high bending strength, so that the protective tube used to protect conventional fiber from breakage are
not needed. This also adds up to excellent cost performance.
Single-point tightening cuts down on installation work by half
Long sensing range
Conventional photoelectric sensors required four (for thru-beam type) or two (for reflective type) mounting holes and screws to be used. However, the UZB3 series is installed with a single screw, thus cutting down on installation work by half.
The UZB3 series achieves long distance
sensing [thru-beam type: 500mm
19.685inch, reflective type: 50mm
1.969inch.]
500mm 19.685inch
Thru-beam type
UZB311M
UZB312M
50mm 1.969inch
Reflective type
UZB361M
UZB362M
Convertional model
UZB3
Incorporates a sensitivity
adjuster (Reflective type only)
Bright 2-color indicator
Globally useable
The sensor incorporates a sensitivity adjuster. It is convenient when you need
fine adjustment.
A bright 2-color indicator has been incorporated in all types.
It conforms to the EMC Directive and will
obtain UL Recognition.
Moreover, PNP output type which is
much demand in Europe, is also available.
Operation indicator
(Orange)
Stability indicator
(Green)
Sensitivity
adjuster
Conforming to
EMC Directive
UL Recognition
Waterproof
High response speed of 0.5ms
Separate slit masks also available
The sensor can be hosed down because
of its IP67 construction.
The same high response speed of
0.5ms as fiber sensor amplifiers is provided, making these sensors ideal for
sensing small objects, counting objects
that are moving quickly and positioning
items such as circuit boards.
A slit mask can be attached to narrow
the beam width down to φ 1mm
φ .039inch to allow sensing of very small
objects.
Slit mask
Note: However, take care that if it is exposed to water splashes during opeartion, it may detect a
water drop itself.
3
APPLICATIONS
Detecting IC height
Detecting quantity of labels in label
magazine
Checking IC pins (using slit mask)
ORDER GUIDE
Type
Appearance
Sensing range
Model No.
Output
Output operation
UZB311
Light-ON
NPN open-collector transistor
500mm
19.685inch
Thru-beam
UZB312
Dark-ON
UZB3115
Light-ON
PNP open-collector transistor
UZB3125
Dark-ON
UZB361
Light-ON
NPN open-collector transistor
Diffuse
reflective
50mm
1.969inch
UZB362
Dark-ON
UZB3615
Light-ON
PNP open-collector transistor
UZB3625
Dark-ON
OPTION
Designation
Slit mask
Model No.
UZB831
(Slit size φ 1mm φ .039inch)
Slit on one side
Slit on both sides
Description
• Sensing range: 200mm 7.874inch
• Min. sensing object: φ 2mm φ .079inch
• Sensing range: 150mm 5.906inch
• Min. sensing object: φ 1mm φ .039inch
Note: One slit and two spacers are provided per set. Two sets are required when installing on both sides.
4
Slit mask
SPECIFICATIONS
Model
No.
Type
NPN output
PNP output
Item
Sensing range
Sensing object
Hysteresis
Repeatability
(Perpendicular to sensing axis)
Supply voltage
Current consumption
Output
Utilization category
Output operation
Short-circuit protection
Response time
Operation indicator
Stability indicator
Sensitivity adjuster
Protection
Ambient temperature
Environmental
resistance
Ambient humidity
Ambient illuminance
EMC
Voltage
withstandability
Insulation resistance
Vibration resistance
Shock resistance
Emitting element
Material
Cable
Cable extension
Weight
Accessories
Thru-beam
UZB311
UZB312
UZB3115
UZB3125
500mm 19.685inch
φ 2mm φ .079inch or more opaque object
—
Diffuse reflective
UZB361
UZB362
UZB3615
UZB3625
50mm 1.969inch (Note)
Opaque, translucent or transparent object
15% or less of operation distance
0.05mm .002inch or less
0.5mm .020inch or less
12 to 24V DC±10% Ripple P-P: 10% or less
Emitter : 10mA or less, Receiver : 15mA or less
20mA or less
(NPN output type)
(PNP output type)
NPN open-collector transistor
PNP open-collector transistor
• Maximum sink current : 50mA
• Maximum source current : 50mA
• Applied voltage : 30V DC or less
• Applied voltage : 30V DC or less
(between output and 0V)
(between output and + V)
• Residual voltage : 1V or less
• Residual voltage : 1V or less
(at 50mA sink current)
(at 50mA source current)
0.4V or less (at 16mA sink current)
0.4V or less (at 16mA source current)
DC-12 or DC-13
Light-ON
Dark-ON
Light-ON
Dark-ON
Incorporated
0.5ms or less
Orange LED (lights up when output is ON)
(incorporated on the receiver for thru-beam type)
Green LED
Green LED
lights up under stable light received condition lights up under stable light received condition
or stable dark condition, incorporated on the
or stable dark condition
receiver
—
Continuously variable adjuster
IP67 (IEC)
–25 to + 55°C –13 to + 131°F (No dew condensation or icing allowed),
Storage:–30 to + 70°C – 22 to + 158°F
35 to 85% RH, Storage : 35 to 85% RH
Sun light : 10,000 lux at the light-receiving face, Incandescent : 3,000 lux at the light-receiving face
Emission: EN50081-2, Immunity: EN50082-2
1,000V AC for one min. between all supply terminals connected together and enclosure
20MΩ, or more with 250V DC megger between all supply terminals connected together and enclosure
10 to 500Hz frequency, 3mm .118inch amplitude (20G max.)
in X, Y and Z directions for two hours each
500m/s2 acceleration {50G approx.} in X, Y and Z directions for three times each
Red LED (modulated)
Enclosure: Die-cast zinc(Nickel plated),
Lens: Polycarbonate (UZB31M) • Acrylic (UZB36M),
Enclosure cover: Polycabonate
0.1mm2 3-cores (thru-beam type sensor emitter: 2-core) cabtyre cable, 2m 6.562ft long
Extension up to total 50m 164.04ft is possible with 0.3mm2, or more,
cable (thru-beam type: both emitter and receiver)
Emitter: 20g .071oz approx.
20g .071oz approx.
Receiver: 20g .071oz approx.
Nut: 2 pcs., Toothed lock washer: 2 pcs.
Nut: 1 pc., Toothed lock washer: 1 pc.
Note: The sensing range is specified of white non-glossy paper (100×100mm 3.937×3.937inch) as the object.
5
I/O CIRCUIT AND WIRING DIAGRAMS
NPN output type
I/O circuit diagram
Wiring diagram
Color code
Sensor circuit
(Brown) `V
D
Color code
Load
`
1
(Black) Output (Note)
50mA max.
(Blue) 0V
ZD
Tr
Brown
12 to 24V DC
510%
Load
`
1
Black (Note)
12 to 24V DC
510%
Blue
Internal circuit
Users’ circuit
Note: The emitter of the thru-beam type sensor does not incorporate the output.
Note: The emitter of the thru-beam type sensor does not
incorporate the black wire.
Symbol... D : Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr : NPN output transistor
PNP output type
I/O circuit diagram
Wiring diagram
Color code
Sensor circuit
(Brown) `V
Tr
ZD
`
1
50mA max.
(Black) Output (Note)
D
Color code
Load
Brown
12 to 24V DC
510%
Black (Note)
(Blue) 0V
Load
`
1
12 to 24V DC
510%
Blue
Internal circuit
Users’ circuit
Note: The emitter of the thru-beam type sensor does not
incorporate the black wire.
Note: The emitter of the thru-beam type sensor does not incorporate the output.
Symbol... D : Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr : PNP output transistor
SENSING CHARACTERISTICS (TYPICAL)
UZB31M
UZB31M5
Thru-beam type
Parallel deviation
Angular deviation
200
7.874
L
UZB31M
UZB31M5 Thru-beam type
5
60
2.362
1002100mm
40 3.93723.937inch
1.575 Non-glossy paper
20
.787
0
400
800 1,200 1,600 2,000
15.748 31.496 47.244 62.992 78.74
Setting distance L (mm inch)
Receiver
200
7.874
Emitter
100
3.937
L
Receiver
0
40
1.575
20
0
20
40
.787
.787
1.575
Left
Center
Right
Operating point (mm inch)
20
0
20
40
.787
.787
1.575
Left
Center
Right
Operating point (mm inch)
Diffuse reflective type
Correlation between sensing
object size and sensing range
L
Sensor
0
10
5
0
5
10
.394
.197
.197
.394
Center
Left
Right
Operating point (mm inch)
Setting range L (mm inch)
10
L
0
40
1.575
40
Sensing field
Setting distance L (mm inch)
Excess gain
Emitter
100
3.937
80
3.150
50
6
L
20
0
20
Left
Center
Right
Operating angle θ ( ° )
UZB36M
UZB36M5
100
1
θ
200
7.874
0
40
50
0
50
100
1.969
1.969
3.937
Left
Center
Right
Operating point (mm inch)
Correlation between setting
distance and excess gain
Emitter
Receiver
Receiver
0
100
3.937
400
15.748
200
7.874
Setting distance L (mm inch)
Emitter
600
23.622
Correlation between setting
distance and excess gain
80
3.150 As the sensing object size becomes smaller
than the standard size (white non-glossy paper
1002100mm 3.93723.937inch), the sensing
60
2.362 range shortens, as shown in this graph.
40
1.575
100
50
Excess gain
Setting distance L (mm inch)
Setting distance L (mm inch)
600
23.622
Setting distance L (mm inch)
800
31.496
800
31.496
400
15.748
Parallel deviation with slit mask Parallel deviation with rectanguon one side
lar slit masks on both sides
a2amm a2ainch
White non-glossy paper
L
10
5
20
.787
Sensor
0
50
100
150
1.969
3.937
5.906
White non-glossy paper
side length a (mm inch)
200
7.874
1
0
50
150
200
250
100
1.969 3.937 5.906 7.874 9.843
Setting distance L (mm inch)
PRECAUTIONS FOR PROPER USE
This product is not a safety sensor. Its use is not
intended or designed to protect life and prevent
body injury or property damage from dangerous
parts of machinery. It is a normal object detection sensor.
Part description
UZB31M, UZB31M5
Operation indicator
(Orange)(Note)
Stability indicator
(Green)(Note)
Stability indicator
• The stability indicator (green) lights up when the incident light
intensity has sufficient margin with respect to the operation
level.
If the incident light intensity level is such that the stability indicator lights up, stable sensing can be done without the light
received operation and the light interrupted operation being
affected by a change in ambient temperature or supply voltage.
Operation of stability indicator
Light
interruption
margin
Stability indicator
(Green)
25% approx.
Light received operation
100
Incident light intensity (%)
Beam-receiving
part
Operation indicator
(Orange)
15% approx.
Light interrupted
operation
Output
operation
level
Note: Not incorporated on emitter.
Lights up Lights off
Incident
light
margin
Beam axis
UZB36M, UZB36M5
Lights up
Output operation
0
0
Setting distance
Beam-emitting
part
Sensitivity adjuster
Mounting
Mount the sensor on a mounting plate 3mm or less thick, using
the enclosed nut and toothed washer. When tightening the nut,
hold the sensor with hand or a spanner and make sure that the
tightening torque is 0.6N·m [UZB36M(36M5): 1.0N·m] or less.
Do not tighten the sensor itself with a spanner,etc.
Mounting plate
(3mm .118inch or less thick)
Sensitivity adjustment (Diffuse reflective type only)
Step
Sensitivity
adjuster
Description
MAX
Turn the sensitivity adjuster fully counter-clockwise to the minimum sensitivity position.
1
MAX
2
A
B
MAX
3
4
Optimum position
A
B
In the light received condition, turn the sensitivity adjuster slowly clockwise and confirm the
point where the sensor enters the ‘Light’ state
operation.
In the dark condition, turn the sensitivity adjuster
further clockwise until the sensor enters the
‘Light’ state operation and then bring it back to
confirm point where the sensor just returns to
the ‘Dark’ state operation.
If the sensor does not enter the ‘Light’ state
operation even when the sensitivity adjuster
is turned fully clockwise, this extreme posi-
tion is point .
MAX
The position at the middle of points
the optimum sensing position.
and
A
Note: Use the accessory adjusting screwdriver to turn the adjuster slowly.
Turning with excessive strength will damage the adjuster.
is
Wiring
• Make sure to carry out the wiring in the power supply off condition.
• Verify that the supply voltage variation is within the rating.
• If power is supplied from a commercial switching regulator,
ensure that the frame ground (F.G.) terminal of the power supply is connected to an actual ground.
• In case noise generating equipment (switching regulator, inverter motor,etc.) is used in the vicinity of this product, connect the frame ground (F.G.) terminal of the equipment to an
actual ground.
• Extension up to total 50m (thru-beam type: both emitter and
receiver) is possible with 0.3mm2, or more,cable.
However, in order to reduce noise, make the wiring as short
as possible.
• Do not run the wires together with high-voltage lines or power
lines or put them in the same raceway.
This can cause malfunction due to induction.
Make sure to use an isolation transformer for the DC power
supply. If an auto-transformer (single winding transformer) is
used, this product or the power supply may get damaged.
• In case a surge is generated in the used power supply, connect a surge absorber to the supply and absorb the surge.
Optional slit mask (Thru-beam type only)
• Apply the optional slit mask (UZB831) when detecting small
objects or for increasing the accuracy of sensing position.
However, the sensing range is reduced when the slit mask is
mounted.
Mounting method
1 Insert the sensor into the mounting plate.
2 Fit the washer and spacers enclosed with the slit mask. Note
that the number of spacers to be fitted differs with the
mounting plate thinckness, as give in the table below.
3 Mount the slit mask. Make sure that the tightening torque is
0.6N·m or less.
Mounting plate
thickness
3mm .118inch
2mm .079inch
1mm .039inch
Mounting plate
No. of spacers
0 pc.
1 pc.
2 pcs.
Sensor
Slit mask
Spacer
Washer
7
Others
• Do not use during the initial translent time (50ms) after the
power supply is switched on.
• Take care that the sensor is not directiy exposed to fluorescent light from a rapid-starter lamp or a high frequency lighting
device, as it may affect the sensing performance.
• Avoid dust, dirt, and steam.
• Take care that the sensor does not come in direct contact with
water, oil, grease, or organic solvents, such as, thinner, etc.
• In case of using the sensor at a place where static electricity
is generated, use a metal mounting plate. Also, ensure to
ground the mounting plate.
DIMENSIONS (Unit : mm inch)
UZB31M
UZB31M5
UZB36M
UZB36M5
Sensor
Sensor
Stability indicator
(Green) (Note)
15.6
.614
3.7
.146
3.1
.122
0.3
.012
Stability indicator
(Green) (Note)
Operation indicator
(Orange) (Note)
Beamreceiving
part
Beam axis
7
7
.276 .276
14
.551
Operation indicator
(Orange) (Note)
0.3
.012
15.6
.614
5.7
.224
5.1
.201
11
.433
8.2
.323
7
7
.276 .276
14
.551
14
.551
14
.551
M420.7
M42.028
3
.118
5.1
.201
3.8
.150
3 .118
0.75
.030
φ 7.2
φ .283
M620.75
M62.030
Beamemitting
part
φ 2.5 cable 2m
φ .098 cable 6.562ft.
Sensitivity
adjuster
5.1
.201
3.8
.150
φ 2.5 cable 2m
φ .098 cable 6.562ft.
Note: Not incorporated on the emitter.
UZB831
Slit mask (Optional)
Slit mask
Spacer
(4.35)
(.171)
φ8
φ .315
7
.276
(φ 5.5)
(φ .217)
Internal thread part
M420.7 3.8 deep
M42.028 .150 deep
φ 4.3
φ .169
1
.039
(7.93)
(.312)
φ1
φ .039
These materials are printed on ECF pulp.
These materials are printed with earth-friendly vegetable-based (soybean oil) ink.
Please contact ..........
Matsushita Electric Works, Ltd.
Automation Controls Company
K Head Office: 1048, Kadoma, Kadoma-shi, Osaka 571-8686, Japan
K Telephone: Japan (81) Osaka (06) 6908-1050
K Facsimile: Japan (81) Osaka (06) 6908-5781
http://www.nais-e.com/
COPYRIGHT © 2001 All Rights Reserved
AACT1B15E
200103-3YT
8
Specifications are subject to change without notice.
Printed in Japan.