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WORLD-BEAM® QS18 Adjustable-Field Sensors
Miniature sensors with visible red LED or visible red laser
LASER
ADJUSTABLE-FIELD
(some models)
Models
Models Sensing Beam
QS18VN6AF100
660 nm Visible
Red LED
QS18VP6AF100
QS18VN6LAF
650 nm Visible
Red Class 1 Laser
QS18VP6LAF
QS18VN6LAF250
658 nm Visible
Red Class 2 Laser
QS18VP6LAF250
* Only standard 2 m (6.5 ft) cable models are listed.
For 9 m (30 ft) cables: add suffix "W/30" to the model number (e.g., QS18VN6AF100 W/30).
For 4-pin Pico-style pigtail QD: add suffix "Q" to the model number (e.g., QS18VN6AF100Q); accessory mating cordset required, see
Quick-Disconnet (QD) Cordsets
For 4-pin Euro-style pigtail QD: add suffix "Q5" to the model number (e.g., QS18VN6AF100Q5); accessory mating cordset required,
see Quick-Disconnet (QD) Cordsets
WARNING: Not To Be Used for Personnel Protection
Never use this product as a sensing device for personnel protection. Doing so could lead to seri-
ous injury or death. This product 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 ener-
gized or de-energized sensor output condition.
Overview
The QS18 Adjustable-Field Sensors are a full-featured sensor in a miniature package. It provides background suppression sensing capa-
bility for small or difficult-to-reach areas. Models are available with a visible red LED sensing beam, or one of two visible red lasers (see
Models on page 1).
P/N 66981_web
Rev. I
• Exceptional optical performance, comparable to larger sensors
• Simple multi-turn screw adjustment of cutoff distance
• 10 to 30V dc operation, with complementary (SPDT) NPN or PNP outputs, depending on
model
• Less than 1 millisecond output response for excellent sensing repeatability
Laser Models:
• Narrow effective beam (approx. 1 mm spot size) for small-object detection and precise po-
sition control
• Crosstalk rejection algorithm to avoid optical disturbance from adjacent sensors
• Class 2 models have reduced excess gain within 20 mm of sensor for decreased suscepti-
bility to the effects of lens contamination and to allow use of external lens shield
Range
1 mm (0.04 in) to cutoff point;
Adjustable cutoff point, 20-100
mm (0.8 in-4 in)
1 mm (0.04 in) to cutoff point;
Adjustable cutoff point, 30-150
mm (1.2 in-6 in)
20 mm (0.08 in) to cutoff point;
Adjustable cutoff point, 50-250
mm (2 in-10 in)
on page 9.
on page 9.
Features
Cordset*
2 m (6.5 ft) 4-wire 10 to 30V dc
6/7/2012
Supply Voltage Output Type
NPN
PNP
NPN
PNP
NPN
PNP