Datasheet
• Visible Class 1 laser for diffuse sensing
• Narrow effective beam provides small-object detection and precise position control
• Crosstalk rejection algorithm protects against optical disturbance from adjacent sensors
• Excellent optical performance throughout sensing range, even close up
• 10 to 30 V dc operation, with complementary (SPDT) NPN or PNP outputs, depending on
model
• Bright LED operating status indicators are visible from 360°
• Compact, rugged sealed housing, protected circuitry
• Mounting versatility – popular 18 mm threaded barrel or side-mount
• Choose 2 m (6.5 ft) or 9 m (30 ft) cable or one of four QD options
Models Sensing Range Spot Size at Focus Cable Output
QS18VN6LD 650 nm Visible Red
Class 1 Laser 300 mm
(12 in)
Approximately 1 mm at 300 mm
(0.039 in at 12 in) 4-wire, 2 m (6.5 ft) integral
cable
NPN
QS18VP6LD PNP
The standard 2 m (6.5 ft) cable models are listed. To order the 9 m (30 ft) cable models, add the suffix “W/30” to the
model number (e.g., QS18VN6LD W/30). A model with a QD connector requires a mating cordset. To order the QD
models:
• For 4-pin integral Euro-style QD, add suffix “Q8” (e.g., QS18VN6LDQ8).
• For 4-pin integral Pico-style QD, add suffix “Q7” (e.g., QS18VN6LDQ7).
• For 4-pin Euro-style 150 mm (6 inch) pigtail QD, add suffix “Q5” (e.g., QS18VN6LDQ5).
• For 4-pin Pico-style 150 mm (6 inch) pigtail QD, add suffix “Q” (e.g., QS18VN6LDQ).
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.
Wiring Diagrams
NPN (Sinking) Outputs PNP (Sourcing) Outputs Wiring Key
3
1
4
2
10-30V dc
–
+
Load
Load
3
1
4
2
10-30V dc
–
+
Load
Load
1 = Brown
2 = White
3 = Blue
4 = Black
Cabled wiring diagrams are shown. Quick disconnect (QD) wiring diagrams are functionally identical.
WORLD-BEAM® QS18LD Laser Diffuse
Series Sensors
Original Document
118899 Rev. D 27 March 2014
118899
Description of Laser Classes
Class 1 Lasers
Class 1 lasers are lasers that are safe under reasonably foreseeable conditions of operation, including the use of optical
instruments for intrabeam viewing.
Reference IEC 60825-1:2001, Section 8.2.
Class 1 Laser Characteristics: See Specifications.
CAUTION: Do Not Disassemble for Repair
This device contains no user-serviceable components. Do not
attempt to disassemble for repair. Use of controls or
adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure. A
defective unit must be returned to the manufacturer.
For Safe Laser Use (Class 1 or Class 2):
• Do not stare at the laser.
• Do not point the laser at a person’s eye.
• Mount open laser beam paths either above or below eye level, where practical.
• Terminate the beam emitted by the laser product at the end of its useful path.
Specifications
Supply Voltage
10 to 30 V dc (10% maximum ripple) at less than 15 mA, exclusive of
load
Sensing Beam
Visible red LED, 650 nm
Laser Characteristics
Wavelength: 650 nm visible red Class 1 laser
Pulse Width: 7 microseconds
Rep Rate: 130 microseconds
Average Output Power: 0.065 mW
Supply Protection Circuitry
Protected against reverse polarity and transient voltages
Output Configuration
Solid-state complementary (SPDT): NPN or PNP (current sinking or
sourcing), depending on model;
Rating: 100 mA maximum each output at 25 °C
Off-state leakage current:
NPN: less than 200 µA @ 30 V dc (See Application Note 1)
PNP: less than 10 µA @ 30 V dc
ON-state saturation voltage:
NPN: less than 1.6 V @ 100 mA
PNP: less than 3.0 V @ 100 mA
Output Protection Circuitry
Protected against false pulse on power-up and continuous overload or
short circuit of outputs
Output Response
700 microseconds ON/OFF
NOTE: 200 millisecond delay on power-up; outputs do not conduct
during this time
Repeatability
130 microseconds
Sensing Hysteresis
15% of range typical
Adjustments
Single-turn sensitivity (Gain) adjustment potentiometer
Indicators
2 LED indicators on sensor top:
Green solid: Power on
Amber solid: Light sensed
Amber flashing: Marginal excess gain (1 to 1.5x excess gain)
Construction
ABS housing, acrylic lens cover, 3 mm mounting hardware included
Environmental Ratings
IEC IP67; NEMA 6; UL Type 1
Connections
2 m (6.5 ft) 4-wire PVC cable, 9 m (30 ft) 4-wire PVC cable, 4-pin Pico-
style or Euro-style QD, 4-pin Pico-style or Euro-style 150 mm (6 in)
pigtail QD, depending on model
Operating Conditions
Temperature: –10 °C to 50 °C (14 °F to 122 °F)
Relative Humidity: 90% @ 50 °C (non-condensing)
Laser Classification
Class 1 laser product; Complies with IEC 60825-1:2001 and 21 CFR
1040.10, except for deviations pursuant to Laser Notice 50, dated
7-26-01
Application Notes
NPN off-state leakage current is < 200 µA for load resistances > 3 kΩ
or optically isolated loads. For load current of 100 mA, leakage is < 1%
of load current.
Certifications
WORLD-BEAM® QS18LD Laser Diffuse Series Sensors
2 www.bannerengineering.com - tel: 763-544-3164 P/N 118899 Rev. D
Performance Curves
Performance is based on a 90% reflectance white test card.
Excess Gain Beam Pattern
1
10
100
10 mm
(0.4")
100 mm
(4.0")
1000 mm
(40.0")
1 mm
(0.04")
1000
DISTANCE
EXCESS GAIN
QS18..LD
300 mm
(11.8")
240 mm
(9.45")
180 mm
(7.09")
120 mm
(4.72")
60 mm
(2.36")
0
0
1 mm
2 mm
3 mm
1 mm
2 mm
3 mm
0
0.04"
0.08"
0.12"
0.04"
0.08"
0.12"
DISTANCE
QS18..LD
Dimensions
All measurements are listed in millimeters (inches).
Cabled Models Pico-Style QD Models Euro-Style QD Models
15.0 mm
(0.59")
33.5 mm
(1.32")
3 mm
(0.12")
17.1 mm
(0.67")
24.1 mm
(0.95")
35.0 mm
(1.38")
M18 x 1 Thread
Max. Torque 2.3 Nm (20 in-lbs)
ø 3.3 mm (0.13")
Max. Torque 0.6 Nm (5 in-lbs)
150 mm (6")
Pico-style
Pigtail
41.5 mm
(1.63")
Integral
4-pin
Pico-Style QD
Locknut (included with all models) Washer (included with all models)
8.0 mm
(0.32")
24.2 mm
(0.95")
1.6 mm
(0.06")
Ø 17.8 mm
(0.70")
Ø 23.9 mm
(0.94")
M3 Hardware Packet Contents:
• 2 – M3 x 0.5 x 20 mm SS
Screw
• 2 – M3 x 0.5 SS Hex Nut
• 2 – M3 SS Washer
WORLD-BEAM® QS18LD Laser Diffuse Series Sensors
P/N 118899 Rev. D www.bannerengineering.com - tel: 763-544-3164 3
Accessories
4-Pin Snap-on M8/Pico-Style Cordsets
Model Length Style Dimensions Pinout
PKG4-2 2.00 m (6.56 ft) Straight
ø 9.0
32 Typ.
4
31
2
1 = Brown
2 = White
3 = Blue
4 = Black
PKW4Z-2 2.00 m (6.56 ft) Right-Angle
ø 10.9
29 Typ.
15 Typ.
4-Pin Threaded M12/Euro-Style Cordsets
Model Length Style Dimensions Pinout
MQDC-406 1.83 m (6 ft)
Straight
44 Typ.
ø 14.5
M12 x 1
2
3
4
1
1 = Brown
2 = White
3 = Blue
4 = Black
MQDC-415 4.57 m (15 ft)
MQDC-430 9.14 m (30 ft)
MQDC-450 15.2 m (50 ft)
MQDC-406RA 1.83 m (6 ft)
Right-Angle
32 Typ.
[1.26"]
30 Typ.
[1.18"]
ø 14.5 [0.57"]
M12 x 1
MQDC-415RA 4.57 m (15 ft)
MQDC-430RA 9.14 m (30 ft)
MQDC-450RA 15.2 m (50 ft)
Mounting Brackets
SMB18A
• Right-angle mounting
bracket with a curved
slot for versatile
orientation
• 12-ga. stainless steel
• 18 mm sensor mounting
hole
• Clearance for M4 (#8)
hardware
30
41
46
AB
C
Hole center spacing: A to B = 24.2
Hole size: A = ø 4.6, B = 17.0 × 4.6, C = ø 18.5
SMBQS18RA
• Right-angle mounting
bracket
• 14-ga. 304 stainless
steel
42
17
32
A
B
Hole center spacing: A to B=20.3
Hole size: A =4.3 × 9.3, B=ø 4.3
WORLD-BEAM® QS18LD Laser Diffuse Series Sensors
4 www.bannerengineering.com - tel: 763-544-3164 P/N 118899 Rev. D
Mounting Brackets
SMB312S
• Stainless steel 2-axis,
side-mount bracket
46
B
C
A
32 20
A = 4.3 x 7.5, B = diam. 3, C = 3
x 15.3
SMB18FA..
• Swivel bracket with tilt and
pan movement for precision
adjustment
• Easy sensor mounting to
extruded rail T-slots
• Metric and inch size bolts
available
• 18 mm sensor mounting
hole
66
69
A
B
Hole size: B=ø 18.1
Model Bolt Thread (A)
SMB18FA 3/8 - 16 × 2 in
SMB18FAM10 M10 - 1.5 × 50
SMB46A
• 2-piece 12-ga. stainless
steel bracket assembly
with precision sensor
alignment adjustment
• 2 mm hex key included
Hole center spacing: A to B = 18.5, B = 30.5
Hole size: A = ø 6.6, B = 7.1 x 20.3
SMBQS18Y
• Die-cast bracket for 18
mm holes
• Includes metal hex nut
and lock washer
• Allows ± 8° for cabled
sensors
Hole size: A = ø 15.3
7.8 mm
[0.31"]
15.5 mm
[0.61"]
19.5 mm
[0.77"]
9.8 mm
[0.38"]
14.5 mm
[0.57"]
25.4 mm
[1"]
16.4 mm
[0.65"]
24.1 mm
[0.94"]
4.5 mm
[0.18"]
3.4 mm
[0.13"]
2x R24.1 mm
[0.95"]
2x 8
38.0 mm
[1.50"]
12.0 mm
[0.47"]
SMB18SF
• 18 mm swivel bracket with
M18 × 1 internal thread
• Black thermoplastic
polyester
• Stainless steel swivel
locking hardware included
B
A
51
42
25
Hole center spacing: A = 36.0
Hole size: A = ø 5.3, B = ø 18.0
SMBQS18A
• Wrap-around protection
bracket
• Die-cast bracket
• Base fits 18 mm
threaded hole
• Metal hex nut, lock
washer and grommet
included
• Mounting holes specially
designed for QS18AF
sensors
Hole size: A = ø 15.3
62
25
19
A
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P/N 118899 Rev. D www.bannerengineering.com - tel: 763-544-3164 5
Mounting Brackets
SMB3018SC
• 18 mm swivel side or
barrel-mount bracket
• Black reinforced
thermoplastic polyester
• Stainless steel swivel
locking hardware
included
B
A
67
59
29
Hole center spacing: A = 50.8
Hole size: A = ø 7.0, B = ø 18.0
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.
WORLD-BEAM® QS18LD Laser Diffuse Series Sensors
www.bannerengineering.com - tel: 763-544-3164