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S8-PR…T53 

Polarised retroreflex for transparents with threshold 
auto-adjustment

 

 

INSTRUCTION MANUAL 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

CONTROLS 

OUTPUT LED (yellow) 

The yellow LED indicates the output status. 

READY LED (green) 

The green LED ON indicates normal functioning. 

SET PUSH-BUTTON 

The acquisition procedure is activated by pressing the SET 
push-button. 
The control obtained with the SET push-button can be made 
externally with the REMOTE input. 

LIGHT/DARK TRIMMER 

The light/dark mode is selected by a monoturn trimmer. 
 
Please refer to “SETTING” paragraph for the correct use 
procedures. 

WARNING: 

the maximum mechanical rotation range of the 

trimmer is 240°.Do not force over of the maximum and 
minimum positions. 

 

INSTALLATION 

The sensor can be positioned by means of 
the two housing holes using two screws 
(M3x18 or longer, 0.8Nm maximum 
tightening torque) with washers. 
Various orientable fixing brackets to ease 
the sensor positioning are available (please 
refer to the accessories listed in the general 
catalogue). 
The operating distance is measured from 
the front surface of the sensor optics. 

 
 
 
 

CONNECTIONS 

M8 connector 

 
 

2

4

1

3

 

 

 

 

 

 

TECHNICAL DATA 

Power supply: 

12 … 30 Vdc 

Ripple: 

2 Vpp max. 

Consumption (output current excluded): 

30 mA max 

Outputs / Alarm output: 

PNP or NPN N.O.; pull up/down resistance = 47 K

; 30 Vdc max. 

(short-circuit protection) 

Output current: 

100 mA (overload protection) 

Output saturation voltage: 

 2 V 

Response time: 

250 us 

Switching frequency: 

2 KHz 

Emission type: 

RED (660 nm) 

Operating distance (typical values): 

2 m (EG2) on R2 reflector 

Regulations SET 

push-button 

LIGHT/DARK selection: 

Monoturn trimmer 

Indicators: 

OUTPUT LED (yellow) / READY LED (green) 

Operating temperature: 

-10 … 55 °C 

Storage temperature: 

-20 … 70 °C 

Dielectric strength: 

: 1500 Vac 1 min. between electronics and housing 

Insulating resistance: 

>20 M

 500 Vdc between electronics and housing 

Ambient light rejection: 

according to EN 60947-5-2 

Vibrations: 

0.5 mm amplitude, 10 … 55 Hz frequency, for each axis (EN60068-2-6) 

Shock resistance: 

11 ms (30 G) 6 shocks for each axis (EN60068-2-27) 

Housing material: 

ABS 

Lens material: 

Window in glass; lens in PC 

Mechanical protection: 

IP67 

Connections: 

M8 4-pole connector 

Weight: 

12 g. max. connector version / 50 g. pig-tail version 

SETTINGS 

LIGHT/DARK MODE SETTING 

Light mode setting 

Rotate trimmer in an anti-clockwise direction to 
set the LIGHT mode (output ON with the 
reflector). 

 

 

 

Dark mode setting 

Rotate trimmer in a clockwise direction to set 
the DARK mode (output ON in presence of 
the object). 

 

SENSITIVITY ADJUSTMENT 

Alignment and sensitivity adjustment 

- Position and align the sensor and the reflector on 

opposite side at the desired distance. 

- Move the sensor vertically and horizontally to 

determine the powering on and powering off points 
of the yellow LED (OUT) and fix the sensor in the 
middle of these two points. 

-  Press SET push-button until the green READY LED 

turns off. The sensor adjusts the sensitivity. If the 
READY LED turns permanently ON the acquisition 
was successful. If the LED blinks the acquisition 
failed due to insufficient contrast. Press SET and 
the sensor returns to the previous setting. Verify 
alignment between sensor and reflector and the 
operative distance before repeating the procedure 
from the beginning. If the signal that returns from 
the reflector is too high (saturated), the sensor sets 
the sensitivity to minimum and functions normally, 
however signalling this condition by the READY LED blinking slowly. In this case the sensor 
may not detect some transparent objects. You can press SET for 1s to make the READY 
LED stop blinking.

 

KEYLOCK FUNCTION (keyboard lock) 

The KEYLOCK function (keyboard lock) allows to deactivate 
the keyboard avoiding accidental changes in the sensor 
setting. 
If at sensor powering the REMOTE wire is connected to 
+Vdc for at least 1 s., the 

keyboard lock

 function is activated 

and the push-buttons are no longer active. 
To deactivate the 

keyboard lock

, the sensor must be turned 

off and repowered with the REMOTE wire not connected or 
connected to GND. 
 
 

 
 

THRESHOLD AUTO-ADJUSTMENT FUNCTION

 

The sensor provides threshold auto-adjustment function. If 
the received signal decreases/ increases due to dirty optical 
lens or reflector, or for cleaning, the sensor automatically 
adjusts the commutation threshold to avoid continuous 
cleaning of optical parts (after 1 minute of low/high signal). If 
the received signal is too low to be adjusted by the sensor 
the output turns on and it is necessary to clean the optical 
parts. 
At sensor powering, if the received signal is a lot higher than 
the switching threshold (e.g. after reflector cleaning), the 
sensor after 1s automatically adjusts the switching 
threshold. 

 

Control

- Enter object laterally in the detection area and 

check that the yellow LED turns ON (in dark 
mode). 

-  Remove object and check that the yellow LED 

turns OFF immediately (in dark mode). 

 

 

 

DIMENSIONS 

5.3

3.5

11

Receiver

Emitter

0.9

Ø3.2 n°2

20

2.6

3.5

42

9.4

M8x1

10

mm

27

.5

15

14

25

7

9.25

 

 

 
 
 

OTHER FUNCTIONS

 

REMOTE input 

 

The REMOTE signal carries-out acquisition functions without 
using the SET push-button. 
The REMOTE wire connected to +Vdc is equal to pressing the 
SET pus-button, connected to GND or not connected is equal 
to not pressing the SET push-button. 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Datalogic S.r.l. 

Via S. Vitalino 13 - 40012 Calderara di Reno - Italy 
Tel: +39 051 3147011 - Fax: +39 051 3147205 - www.datalogic.com

 

 
Helpful links at www.datalogic.com: 

Contact Us,

 

Terms and Conditions,

 

Support

 
The warranty period for this product is 36 months. See General Terms and Conditions of Sales for 
further details. 
 

 

Under current Italian and European laws, Datalogic is not obliged to take care of product 
disposal at the end of its life. Datalogic recommends disposing of the product in compliance with 
local laws or contacting authorised waste collection centres. 

 
© 2008 - 2017 Datalogic S.p.A. and/or its affiliates 

 ALL RIGHTS RESERVED. 

 Without limiting the 

rights under copyright, no part of this documentation may be reproduced, stored in or introduced into a 
retrieval system, or transmitted in any form or by any means, or for any purpose, without the express 
written permission of Datalogic S.p.A. and/or its affiliates. Datalogic and the Datalogic logo are registered 
trademarks of Datalogic S.p.A. in many countries, including the U.S.A. and the E.U. All other trademarks 
and brands are property of their respective owners. Datalogic reserves the right to make modifications 
and improvements without prior notification. 
 

826004105 Rev. E 

Reflector acquisition 

Vdc

 

REMOTE

 

GND

 

>1s 

ACQ. 

DARK 

LIGHT 

(WHITE)

(BLACK) 

(BLUE) 

(BROWN)

12...30 Vdc  

+

REMOTE

N.O. OUTPUT 

-

 0V 

Summary of Contents for S8-PR T53 Series

Page 1: ...ng the procedure from the beginning If the signal that returns from the reflector is too high saturated the sensor sets the sensitivity to minimum and functions normally however signalling this condition by the READY LED blinking slowly In this case the sensor may not detect some transparent objects You can press SET for 1s to make the READY LED stop blinking KEYLOCK FUNCTION keyboard lock The KEY...

Page 2: ...distanza operativa Se il segnale che ritorna dal riflettore è troppo alto il sensore imposta la sensibilità minima e funziona normalmente segnalando la criticità con il lampeggio lento del LED READY in caso di segnale saturo il sensore potrebbe non rilevare alcuni oggetti trasparenti Premendo il tasto SET per 1sec il LED smette di lampeggiare BLOCCO TASTIERA La funzione di blocco tastiera permette...

Page 3: ...rtée opérationnelle Si le signal qui revient du réflecteur est trop haut le détecteur configure la sensibilité minimum et fonctionne normalement en signalant la criticité par le clignotement lent de la LED READY en cas de signal saturé il se pourrait que le détecteur ne détecte pas certains objets transparents Appuyer sur la touche SET pendant 1sec la LED cesse de clignoter BLOCAGE CLAVIER La fonc...

Page 4: ...dlichkeit ein und funktioniert normal wobei er kritische Situationen durch langsames Blinken der LED READY anzeigt im Fall eines gesättigten Signals könnte es vorkommen dass der Sensor keinerlei Objekt erfasst Nach 1 Sek langem Drücken der Taste SET wird die Blinkfunktion der LED beendet TASTENSPERRE Die Funktion der Tastensperre ermöglicht die Deaktivierung der Tastatur um unerwünschte Änderungen...

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