WORLD-BEAM QS30 Foreground Suppression


High performance mid-range adjustable-field foreground suppression sensor complementing the QS18AF short-range and Q60LAF long-range series sensor.

  • 128 element photo receiver for superior performance on varying colors and textures
  • Sensing range in midsize QS30 housing – 400 mm (6% Black Card)
  • Foreground suppression for reliable detection with a fixed background is present and object color or shape varies
  • Linear multi-turn screw adjustment for cutoff distance
  • Enhanced immunity to fluorescent lights
  • Crosstalk immunity allows two sensors to be used in close proximity
  • Tough ABS housing is rated IEC IP67; NEMA 6
  • Bipolar discrete outputs, PNP and NPN
  • Models available with 2m or 9 m (6.5’ or 30’) cable or integral metal quick-disconnect; or 150mm (6”) pigtail
  • Mounting versatility via popular 30 mm threaded barrel or side mount
  • Large, bright output indicator

Product Specifications

RangeAdjustable Cutoff Range: 50 to 400 mm

Maximum Sensing Range: 400 mm
Supply Voltage and Current10 to 30V dc (10% maximum ripple within specified limits);

Current consumption: < 80 mA at 10V dc; < 40 mA at 30V dc
Supply ProtectionProtected against reverse polarity and transient voltages
Sensing BeamVisible red LED, 660 nm
Output ConfigurationSolid-state bipolar (SPDT); both sinking and sourcing

Rating: 100 mA total output current (derate 1 mA per °C above 30°


Off-state leakage current: < 5 μA at 30V dc

ON-state saturation voltage:

• NPN: less than 1.5V @ 100 mA

• PNP: less than 2.0V @ 100 mA

Protected against false pulse on power-up and continuous overload or

short circuit of outputs
Output Response5 millisecond ON/OFF;

200 ms delay on power-up; outputs do not conduct during this time
Repeatability750 μs
AdjustmentsFour-turn adjustment screw sets cutoff distance between min. and

max. positions, clutched at both ends of travel
Indicators2 Indicator LEDs on sensor top:

• Green ON steady: Power ON

• Yellow ON steady: Light sensed

(excess gain > 1.5x)

• Yellow flashing: Marginal sensing condition (excess gain < 1.5x)

2 Indicator LEDs on sensor back:

• Small Blue/Red End-of-travel (EOT) LED

• Large Yellow Output LED
ConstructionABS housing, acrylic lens cover;

2.5 mm and 3 mm mounting hardware included

QD models: nickel-plated brass
Environmental RatingIEC IP67; NEMA 6
Connections2 m (6.5') 5-wire PVC cable, 9 m (30') PVC cable, or 5-pin Integral QD

or Euro-style 150 mm (6
Operating ConditionsTemp: –20° to +60° C (–4° to 140° F)

Relative Humidity: 95% @ 50° C (non-condensing)
CertificationsCE pending


Data Sheets

Document Name Part Number File Size Download
1. WORLD-BEAM QS30 Adjustable-Field Sensors with Foreground Suppression 149825 Download


Data Sheets

Document Name Part Number File Size Download
1. QS30AFF Foreground Suppr - French FD229 Download


Data Sheets

Document Name Part Number File Size Download
1. QS30AFF Foreground Suppr - German GD229 Download


Data Sheets

Document Name Part Number File Size Download
1. QS30AFF Foreground Suppr - Italian ID229 Download

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