QS18 Series Banner Through Beam Photoelectric Sensor

The WORLD-BEAM QS18 series of photoelectric sensors offer exceptional optical performance in compact QS18 housing and a unique space saving housing design that directly replaces barrel/rectangular style sensors.
The sensors have a reliable detection when a fixed background is present and the object colour or shape when the shape varies.
The QS18 series of sensors are available in opposed, polarized or non-polarized retro-reflective, convergent, regular or wide-angle diffuse, laser, ultrasonic, plastic or glass fibre optic, fixed-field and adjustable-field sensing modes.

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Specifications

Supply Voltage

10 to 30V dc (10% maximum ripple) at less than 25 mA, exclusive of load;

Protected against reverse polarity and transient voltages

Light Source

Glass Fiber Optic, Opposed and Diffuse mode models: 940 nm infra- red;

Plastic Fiber Optic, Retroreflective, Convergent and FF mode mod- els: 660 nm visible red

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:

ON-state saturation voltage: less than 1V at 10 mA; less than 1.5V at 100 mA

Protected against false pulse on power-up and continuous overload or short circuit of outputs

Output Response

Opposed Mode: 750 microseconds On; 375 microseconds Off

FF Mode: 850 microseconds On/Off

All others: 600 microseconds On/Of

NOTE: 100 millisecond delay on power-up; outputs do not conduct during this time

Repeatability

Opposed Mode: 100 microseconds

FF Mode: 160 microseconds

All others: 150 microseconds

Adjustments

Glass Fiber Optic, Plastic Fiber Optic, Convergent, Diffuse, and Retro-reflective mode models (only): Single-turn sensitivity (Gain) adjustment potentiometer

Indicators

2 LED indicators:

Green steady: Power On

Green flashing: Output overloaded

Yellow* steady: Light sensed

Yellow* flashing: Marginal excess gain (1.0 to 1.5x excess gain) NOTE: Prior to date code 0223, the output indicator was red.

Construction

ABS housing, rated IEC IP67; NEMA 6; UL Type 1

Connections

2 m (6.5 ft) 4-wire PVC cable; 4-pin Pico-style QD; 4-pin Euro-style QD

9 m (30 ft) 4-wire PVC cable; 4-pin Pico-style 150 mm (6 in) pigtail QD; 4-pin Euro-style 150 mm (6 in) pigtail QD

Operating Conditions

Temperature: -20 °C to +70 °C (-4 °F to +158 °F)

Relative Humidity: 90% at 50 °C (non-condensing)