GTB20M-QK111160ZZZ

Compact photoelectric sensors
G20

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Features

Functional principle

Photoelectric proximity sensor

Functional principle detail

Background suppression

Sensing range
Sensing range min.	0.005 m
Sensing range max.	3 m
Adjustable switching threshold for background suppression	0.1 m … 3 m
Reference object	Object with 90% remission factor (complies with standard white according to DIN 5033)
Minimum distance between set sensing range and background (black 6% / white 90%)	200 mm, at a distance of 1000 mm

Emitted beam
Light source	LED
Type of light	Infrared light
Shape of light spot	Rectangular
Light spot size (distance)	Ø 28 mm (500 mm)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)	< +/- 1.5° (at Ta = +23 °C)

Adjustment
Potentiometer	For setting the sensing range, 7 rotations

Indication
LED green	Operating indicator Static on: power on
LED yellow	Status of received light beam Static on: object present Static off: object not present

Electrical data

Supply voltage U_B

10 V DC … 30 V DC ¹⁾

Ripple

< 5 V_pp

Usage category

DC-13 (according to EN 60947-1)

Current consumption

≤ 30 mA, without load. At U_B = 24 V

Protection class

III

Pin/Wire assignment
BN 1	+ (L+)
WH 2	Ǭ Digital output, dark switching, object present → output Ǭ LOW
BU 3	– (M)
BK 4	Q Digital output, light switching, object present → output Q HIGH

Ambient data

Enclosure rating	IP67 (EN 60529)
Ambient operating temperature	–30 °C … +60 °C
Ambient temperature, storage	–40 °C … +70 °C
Typ. Ambient light immunity	Sunlight: ≤ 20,000 lx
Shock resistance	30 g, 11 ms (3 positive and 3 negative shocks along X, Y, Z axes, 18 total shocks (EN60068-2-27))
Vibration resistance	10 Hz … 1,000 Hz (Amplitude 1 mm, 3 x 30 min (EN60068-2-6))
Air humidity	35 % … 95 %, Relative humidity (no condensation)
Electromagnetic compatibility (EMC)	EN 60947-5-2 ¹⁾
UL File No.	NRKH.E348498 & NRKH7.E348498

¹⁾ The device can cause interference when it is used in a residential environment.

Classifications