GRTB18S-P2421V

Cylindrical photoelectric sensors
GR18

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Features

Functional principle

Photoelectric proximity sensor

Functional principle detail

Background suppression

Dimensions (W x H x D)

18 mm x 18 mm x 55.9 mm

Housing design (light emission)

Cylindrical

Housing length

55.9 mm

Thread length

31.7 mm

Thread diameter (housing)

M18 x 1

Optical axis

Axial

Sensing range max.

3 mm … 200 mm ¹⁾

Sensing range

15 mm … 200 mm ¹⁾

Type of light

Visible red light

Light source

PinPoint LED ²⁾

Light spot size (distance)

Ø 7 mm (100 mm)

Wave length

650 nm

Adjustment

None

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

Special applications

Hygienic and washdown zones

Mechanics/electronics

Supply voltage	10 V DC … 30 V DC ¹⁾
Ripple	< 5 V_pp ²⁾
Current consumption	30 mA
Switching output	PNP
Output function	Complementary
Switching mode	Light/dark switching ³⁾
Signal voltage PNP HIGH/LOW	V_S – (≤ 3 V) / approx. 0 V
Output current I_max.	≤ 100 mA ⁴⁾
Response time	< 500 µs ⁵⁾
Switching frequency	1,000 Hz ⁶⁾
Connection type	Male connector M12, 4-pin
Circuit protection	A ⁷⁾ B ⁸⁾ D ⁹⁾
Protection class	III
Weight	45 g
Housing material	Stainless steel, Stainless steel V4A (1.4404, 316L)
Optics material	Plastic, PMMA
Tightening torque, max.	90 Nm
Enclosure rating	IP67 IP68 ¹⁰⁾ IP69K ¹¹⁾
Items supplied	Fastening nuts (2 x)
Electromagnetic compatibility (EMC)	EN 60947-5-2
Ambient operating temperature	–25 °C … +55 °C ¹²⁾
Ambient temperature, storage	–30 °C … +75 °C
UL File No.	NRKH.E348498 & NRKH7.E348498

Classifications