WORLD-BEAM® QS18AF Mechanically Adjustable
Background Suppression Sensor (30-300mm)
Datasheet
Compact sensors featuring extended range and background suppression mode
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Exceptional optical performance; up to 300 mm sensing range in compact QS18 housing
Background suppression models for reliable detection of objects when the background condition
is not controlled or fixed
Simple multi-turn screw adjustment of cutoff distance
Enhanced immunity to fluorescent lights
Crosstalk immunity algorithm allows two sensors to be used in close proximity
Visible red emitter
WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious injury or
death. This device does not include the self-checking redundant circuitry necessary to allow its use in
personnel safety applications. A sensor failure or malfunction can cause either an energized or de-energized
sensor output condition.
Models
Models1
Supply Voltage
QS18VN6AF300
Sensing Range
Adjustable Cutoff: 30 to 300 mm
QS18VP6AF300
10 to 30 V dc
QS18AB6AF300
Minimum sensing range 4 to 10 mm depending on
cutoff
Output Type
NPN
PNP
Bipolar (1 NPN & 1 PNP)
Overview
WORLD-BEAM® QS18 Adjustable-Field Sensors with Background Suppression ignore objects beyond the set cutoff distance.
Background suppression mode can be used in most situations with varying object color and position or with varying background
conditions.
2
3
1
1
Green: Power Indicator
2
Yellow: Light Sensed Indicator (Flashes for Marginal
Conditions)
3
Cutoff Point Adjustment Screw
Figure 1. Sensor features
1 Only standard 2 m (6.5 ft) cable models are listed.
•
To order 9 m (30 ft) cable models: add suffix “W/30” to the model number (for example, QS18VN6AF300 W/30).
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To order 150 mm (6 in) pigtail with a 4-pin Pico-style connector models, add suffix “Q” to the model number (for example, QS18VN6AF300Q)
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To order 150 mm (6 in) pigtail with a 4-pin Euro-style connector models, add suffix “Q5” to the model number (for example,QS18VN6AF300Q5)
Original Document
146923 Rev. G
11 September 2018
146923
WORLD-BEAM® QS18AF Mechanically Adjustable Background Suppression Sensor (30-300mm)
Sensor Orientation
To ensure reliable detection, orient the sensor as shown in relation to the target to be detected.
Figure 2. Optimal Orientation of Target to Sensor
Wiring Diagrams
Cabled wiring diagrams are shown.Quick disconnect (QD) wiring diagrams are functionally identical.
NPN (Sinking) Outputs
3
–
10-30V dc
+
1
4
2
PNP (Sourcing) Outputs
1
4
Load
2
Load
+
10-30V dc
–
3
Wiring Key
1 = Brown
2 = White
3 = Blue
4 = Black
Load
Load
Bipolar Outputs
1
+
10-30V dc
–
3
2
4
Load
Load
Sensor Setup - Background Suppression
Background Suppression Mode: Objects beyond the set cutoff distance will not be detected.
Background suppression mode can be used in most situations with varying object colors and positions or with varying background
conditions.
To ensure reliable background suppression, a minimum separation distance between the object and the background is necessary.
See Figure 7 on page 5 to determine the minimum separation distance.
2
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P/N 146923 Rev. G
WORLD-BEAM® QS18AF Mechanically Adjustable Background Suppression Sensor (30-300mm)
1. Mount the sensor with the darkest object at the longest
application distance. The distance to the object must be less than
shown in Figure 7 on page 5 for your object color.
2. Turn the adjustment potentiometer counter-clockwise until the
yellow indicator turns off (5 turns maximum).
3. Turn the adjustment potentiometer clockwise until the yellow
indicator turns on.
4. Replace the darkest object with the brightest background at the
closest application distance.
5. Turn the adjustment potentiometer clockwise, counting the
revolutions, until the yellow indicator turns on.
6. Turn the adjustment potentiometer counter-clockwise half of the
number of turns from step 5. This places the cutoff distance
midway between the object and the background switchpoints (see
Figure 3 on page 3).
Object
Background
Y
X
Cutoff
Distance
X: Distance to the Object
Y: Minimum Separation Between the Object and
the Background
The sensor is ready for operation.
Figure 3.
Set the cutoff distance approximately midway
between the farthest object and the closest
background
Setup Example
An object with a reflectivity similar to black paper is set 150 mm away from the sensor. A background with a reflectivity similar to
white paper is set 200 mm away from the sensor. According to Figure 7 on page 5 , the minimum separation distance between
the object and the background is 12 mm. In this application, reliable detection is achieved when set up according to the procedure
outlined in Sensor Setup - Background Suppression on page 2.
1. Object
2. Conveyor
3. Background
X: Distance to the Object = 150 mm
Y: Minimum Separation Between the Object
and the Background > 12 mm
Y
X
Figure 4. Background Suppression Mode Application Example
Output States
Background Suppression Mode
Sensor Model Type
Output
Object Inside Minimum
Sensing Range
Object Between Minimum
Sensing Range and Cutoff
Distance
Object Beyond Cutoff
Distance
All Models
Yellow Indicator Light
Undefined
ON
OFF
Black Wire (Pin 4)
Undefined
ON
OFF
White Wire (Pin 2)
Undefined
OFF
ON
Black Wire (Pin 4)
Undefined
ON
OFF
White Wire (Pin 2)
Undefined
ON
OFF
Complementary Models
Bipolar Models
P/N 146923 Rev. G
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WORLD-BEAM® QS18AF Mechanically Adjustable Background Suppression Sensor (30-300mm)
Specifications
Supply Voltage
10 to 30 V dc (10% maximum ripple within specified limits) at less than
16 mA, exclusive of load
Sensing Beam
Visible red LED, 640 nm
Output Response
2.8 millisecond ON/OFF
Note: 200 millisecond delay on power-up; outputs do not conduct during this
time
Adjustments
Five-turn adjustment screw sets cutoff distance between min. and max.
positions, clutched at both ends of travel
Supply Protection Circuitry
Protected against reverse polarity and transient voltages
Output Configuration
Solid-state complementary: NPN or PNP (current sinking or sourcing),
or bipolar (both sinking and sourcing) depending on model;
Rating: 100 mA total output current
Off-state leakage current: < 50 µA at 30 V dc
ON-state saturation voltage: < 1.5 V at 10 mA; < 3.0 V at 100 mA
Protected against false pulse on power-up and continuous overload or
short circuit of outputs
Required Overcurrent Protection
WARNING: Electrical connections must be
made by qualified personnel in accordance
with local and national electrical codes and
regulations.
Required Overcurrent Protection (Amps)
20
5.0
22
3.0
24
2.0
26
1.0
28
0.8
30
0.5
Indicators
2 LED indicators on sensor top:
Green solid: Power on
Amber solid: Light sensed
Amber flashing: Marginal sensing condition
Construction
ABS housing, acrylic lens cover; PVC cable, nickel-plated brass connector,
acetal adjustment pot
Environmental Rating
IEC IP67; NEMA 6; UL Type 1
Overcurrent protection is required to be provided by end product
application per the supplied table.
Overcurrent protection may be provided with external fusing or via
Current Limiting, Class 2 Power Supply.
Supply wiring leads < 24 AWG shall not be spliced.
For additional product support, go to www.bannerengineering.com.
Supply Wiring (AWG)
Repeatability
250 µs
Connections
2 m (6.5 ft) 4-wire PVC cable, 9 m (30 ft) PVC cable, or 4-pin Pico-style or Eurostyle 150 mm (6 in) pigtail QD, depending on model
Operating Conditions
Relative Humidity: 95% relative humidity at 50 °C (non-condensing)
Temperature: –20 °C to 55 °C (–4 °F to 131 °F)
Application Notes
For mirror-like objects, minimize the sensor to object mounting distance and tilt
the sensor so reflected light is directed away from the sensor when the object is
present.
Certifications
Performance Curves
25
15
Emitter Spot Diameter (mm)
Minimum Sensing Range (mm) for 6% Blk
QS18AF300 Minimum Sensing Range
vs. 90% White Cuttoff Setting
10
5
20
15
10
5
0
0
0
50
100
150
200
250
300
350
0
50
4
150
200
250
300
350
Range (mm)
90% White Card Cutoff Setting (mm)
Figure 5. Minimum Sensing Range (Dead Zone) vs. 90% White Cutoff Setting
100
Figure 6. Typical Emitter Spot Diameter vs. Distance
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P/N 146923 Rev. G
WORLD-BEAM® QS18AF Mechanically Adjustable Background Suppression Sensor (30-300mm)
Object
QS18AF300 Minimum Separation Between Object to Background
(Background Suppression Mode)
Background
30
Minimum Sepparation Object to
Background Dimension "Y" (mm)
Object/Background
black/white
25
gray/white
Y
20
X
15
white/white
10
Cutoff
Distance
5
X: Distance to Object (mm)
0
0
50
100
150
200
250
300
350
Distance to Object, Dimension "X" (mm)
Figure 7. Minimum Separation Distance Between Object and Background:
Background Suppression Mode
Y: Minimum Separation Between Object and Background
(mm)
Excess Gain Curves
1000
EXCESS GAIN
EXCESS GAIN
1000
100
10
1
100
10
1
1
10
100
1000
1
DISTANCE (mm)
Figure 8. Excess Gain Curve with 30 mm Cutoff (based on 90% White Card)
P/N 146923 Rev. G
10
100
1000
DISTANCE (mm)
Figure 9. Excess Gain Curve with 300 mm Cutoff (based on 90% White Card)
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WORLD-BEAM® QS18AF Mechanically Adjustable Background Suppression Sensor (30-300mm)
Dimensions
All measurements are listed in millimeters [inches], unless noted otherwise.
5.5 mm
(0.22")
7.5 mm
(0.30")
15.0 mm
(0.59")
21.0 mm
(0.83")
3.8 mm
(0.15")
34.5 mm
(1.36")
5.2 mm
(0.20")
9.0 mm
(0.35")
3.0 mm
(0.12")
24.1 mm
(0.95")
12.0 mm
(0.47")
M2.5
Hardware
Included*
M3 Hardware
Included*
3.8 mm
(0.15")
13.4 mm
(0.53")
*M3 Hardware for Sidemount
M2.5 Hardware for Mounting
to Threaded Inserts
Max. torque 0.6 nm (5 in. lbs)
(2) M3 x 0.5 x 20 mm ss screw
(2) M3 x 0.5 ss hex nut
(2) M3 ss washer
(2) M2.5 x 0.45 x 5 mm ss screw
(2) M2.5 ss washer
Accessories
Quick-Disconnect (QD) Cordsets
4-Pin Snap-on M8/Pico-Style Cordsets
Model
Length
Style
Dimensions
Pinout (Female)
4
32 Typ.
PKG4-2
2 m (6.56 ft)
2
1
3
Straight
ø 9.0
1 = Brown
2 = White
3 = Blue
4 = Black
6
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P/N 146923 Rev. G
WORLD-BEAM® QS18AF Mechanically Adjustable Background Suppression Sensor (30-300mm)
4-Pin Threaded M12/Euro-Style Cordsets
Model
Length
MQDC-406
1.83 m (6 ft)
MQDC-415
4.57 m (15 ft)
MQDC-430
Style
Dimensions
Pinout (Female)
9.14 m (30 ft)
3
4
Straight
MQDC-450
2
1
44 Typ.
M12 x 1
ø 14.5
15.2 m (50 ft)
1 = Brown
2 = White
3 = Blue
4 = Black
Mounting Brackets
All measurements are listed in millimeters, unless noted otherwise.
SMBQS18A
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Wrap-around protection
bracket
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Die-cast bracket
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Base fits 18 mm threaded
hole
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Metal hex nut, lock washer
and grommet included
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Mounting holes specially
designed for QS18AF
sensors
19
62
25
A
SMBQS18AF
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Right-angle mounting
bracket
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14-ga. 304 stainless steel
Hole center spacing: A to B = 20.3
Hole size: A = 4.3 × 9.4, B = ø 4.3
44
A
B
15
32
Hole size: A = ø 15.3
Banner Engineering Corp. Limited Warranty
Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or
replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not
cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.
This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO
BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES
RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT,
STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.
Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously
manufactured by Banner Engineering Corp. Any misuse, abuse, or improper application or installation of this product or use of the product for personal protection applications when the
product is identified as not intended for such purposes will void the product warranty. Any modifications to this product without prior express approval by Banner Engineering Corp will
void the product warranties. All specifications published in this document are subject to change; Banner reserves the right to modify product specifications or update documentation at
any time. Specifications and product information in English supersede that which is provided in any other language. For the most recent version of any documentation, refer to:
www.bannerengineering.com.
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