PEPPERL+FUCHS GL20-RT Datasheet

Photoelectric slot sensor

GL20-RT/32/40a/98a

Dimensions

Model Number

GL20-RT/32/40a/98a

Photoelectric slot sensor

with 3-pin, M8 x 1 connector

Features

• Optimized for the detection of small
parts

• High switching frequency

• Multiple device installation possible,
no mutual interference (no cross-talk)

• Sensitivity adjuster and light/dark
switch as standard features of this
series

• Visible red light

• Degree of protection IP67

• cULus approval

• Sturdy aluminum housing

Product information

Photoelectric slot sensors offer vast installa­tion benefits thanks to their housing design.
When it comes to operation, these new gen­eration devices boast features such as high
resolution, high repeatability, automatic sig­nal threshold adjustment, ambient light resis­tance, and detection of and/or light
transmission through transparent objects.
Cross-talk protection enables parallel instal­lation of devices despite extremely high
switching frequency. These characteristics
guarantee reliable detection of small parts,
from 0.3 mm, across the entire detection
range, even in very fast moving applications.

4.5

4.5

8

ø 4.5

M8 x 1

9 12

9.5

Electrical connection

/98a

1

4

3

+UB

Q

0 V

= Light on
= Dark on

Pinout

Wire colors in accordance with EN 60947-5-2

4

13

1 BN
3 BU
4 BK

Indicators/operating means

1 2 3

HD

46

-+

17

R5

R5

HD

(brown)
(blue)
(black)

4

-+

10

5

L1

L2

6.5

L1 L2

GL10... 10 30

GL20... 20 40

1 Functional display red

2 Light-/dark switch

3 Sensitivity adjuster

Release date: 2019-11-26 15:14 Date of issue: 2019-11-26 199988_eng.xml

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

www.pepperl-fuchs.com [e-mail] [e-mail]

USA: [phone] Singapore: [phone]

Germany: [phone]Pepperl+Fuchs Group

[e-mail]

1

Photoelectric slot sensor

GL20-RT/32/40a/98a

Technical data

General specifications

Light source LED
Light type modulated visible red light
Tests EN 60947-5-2
Target size 0.3 mm
Slot width 20 mm
Slot depth 17 mm
Ambient light limit 100000 Lux

Functional safety related parameters

MTTFd 1290 a
Mission Time (T
Diagnostic Coverage (DC) 0 %

Indicators/operating means

Function indicator LED red in connector
Control elements Sensitivity adjuster, light/dark switch

Electrical specifications

Operating voltage UB10 ... 30 V DC, class 2
Ripple 10 %
No-load supply current I

Output

Switching type light/dark on
Signal output 1 PNP, short-circuit protected, open collector
Switching voltage max. 30 V DC
Switching current max. 100 mA
Repeat accuracy 0.05 mm
Switching frequency f 3 kHz
Response time ≤ 160 µs

Conformity

Product standard EN 60947-5-2

Ambient conditions

Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
Storage temperature -20 ... 75 °C (-4 ... 167 °F)

Mechanical specifications

Degree of protection IP67
Connection M8 connector, 3-pin
Material

Housing black anodized aluminum
Optical face glass

Mass 25 g

) 20 a

M

0

≤ 15 mA

Accessories

V3-WM-2M-PUR

Female cordset single-ended, M8, 3-pin,
PUR cable

Other suitable accessories can be found at
www.pepperl-fuchs.com

Approvals and certificates

CE conformity CE

UL approval cULus

CCC approval CCC approval / marking not required for products rated ≤36 V

Operating principle

Photoelectric slot sensors are photoelectric sensors that operate according to the thru-beam
sensor principle. The transmitter sends signals directly to the receiver. If an object breaks the
light beam, the switching element function is triggered. The special U-shaped design means
the transmitter and receiver can be accommodated in one housing, which ensures high resis­tance to vibrations. In contrast to standard thru-beam sensors, photoelectric slot sensors have
the added advantage of not requiring complex electrical installation, as only one device needs
to be connected. Also, adjustment of the optical axes is not necessary.

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

2

www.pepperl-fuchs.com [e-mail] [e-mail]

USA: [phone] Singapore: [phone]

Germany: [phone]Pepperl+Fuchs Group

[e-mail]

Release date: 2019-11-26 15:14 Date of issue: 2019-11-26 199988_eng.xml