Datasheet

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Visible Class 1 laser

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Visible Class 1 laser for diffuse sensing

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Narrow effective beam provides small-object detection and precise position control

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Crosstalk rejection algorithm protects against optical disturbance from adjacent sensors

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Excellent optical performance throughout sensing range, even close up

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10 V dc to 30 V dc operation, with complementary (SPDT) NPN or PNP outputs, depending

on model

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Bright LED operating status indicators are visible from 360°

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Compact, rugged sealed housing, protected circuitry

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Mounting versatility – popular 18 mm threaded barrel or side-mount

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Choose 2 m (6.5 ft) or 9 m (30 ft) cable or one of four QD options

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

Model

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

Integral 2 m (6.5 ft) unterminated cable models are listed. To order the 9 m (30 ft) PVC cable model, add the suffix

"W/30" to the cabled model number. For example, QS18VN6LD W/30. Models with a quick disconnect require a mating

cordset. To order the QD models:

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To order the 4-pin M12/Euro-style integral quick disconnect model, add the suffix "Q8" to the model number. For

example, QS18VN6LDQ8.

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To order the 4-pin M8/Pico-style integral quick disconnect model, add the suffix "Q7" to the model number. For

example, QS18VN6LDQ7

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To order the 150 mm (6 in) PVC cable model with a 4-pin M12/Euro-style quick disconnect, add the suffix "Q5" to

the model number. For example, QS18VN6LDQ5.

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To order the 150 mm (6 in) PVC cable model with a 4-pin M8/Pico-style quick disconnect, add the suffix "Q" to the

model number. For example, QS18VN6LDQ.

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. F

4 January 2017

118899