LRT 8 Luminescence scanner

Dimensioned drawing
en 02-2012/08 50118345

0…500mm
1,5 kHz

10 - 30 V
DC
A2 LS

 Detection of luminescent objects and

markings
 Various filterings
 Various light-spot sizes
 High switching frequency

A Transmitter and receiver

B Optical axis
C Operational control
D Indicator diodes
E 90° turning connector
We reserve the right to make changes • DS_LRT8_en_50118345.fm

Electrical connection

IP 69K
IEC 60947... IEC 60947... IP 67

Accessories:
(available separately)
 M12 connectors (KD … )
 Ready-made cables (K-D …)
 Mounting systems
 Control guard
 Diaphragms

Leuze electronic GmbH + Co. KG In der Braike 1 D-73277 Owen Tel. +49 (0) 7021 573-0 LRT 8 … - 02
info@leuze.com • www.leuze.com
 LRT 8

Specifications Tables
Optical data
Typ. scanning range limit 1) see tables Scanning range limit
Typ. scanning range 2) see tables Typ. scanning range
Sensor
Light spot diameter see diagram limit
Light source LED LRT 8/24.00-50-… 0 … 100mm
Wavelength 370nm (UV light) or 470nm (blue light) LRT 8/24.04-50-… 0 … 100mm
Average life 3) 50,000h
LRT 8/24.16-80-… 0 … 120mm
Timing LRT 8/24.04-100-… 0 … 300mm
Switching frequency 1500Hz
Response time 0.33ms LRT 8/24.14-150-… 0 … 500mm
Delay before start-up ≤ 100ms LRT 8/24.10-150-… 0 … 500mm
Electrical data Scanning range
Operating voltage UB 10 … 30VDC
Residual ripple ≤ 15% of UB Sensor Object typ. scan-
Open-circuit current ≤ 35mA (10mA) LRT8/24… (white paper) ning range
Switching output PNP and NPN transistor output 10mm x 10mm 0…70mm
Function light switching (dark switching at +UB on PIN 5) .04-50-… 20mm x 20mm 0…100mm
Signal voltage high/low ≥ (UB -2 V)/≤ 2V 50mm x 50mm 0…150mm
Output current max. 100mA
Sensitivity adjustable with 12-turn potentiometer 10mm x 10mm 0…100mm
.04-100-… 20mm x 20mm 0…150mm
Indicators
LED yellow object detected 50mm x 50mm 0…220mm
10mm x 10mm 0…200mm
Mechanical data
Housing metal .14-150-… 20mm x 20mm 0…300mm
Optics cover glass 50mm x 50mm 0…400mm
Weight (connector/cable) 70g/140g
Connection type M12 connector, 5-pin Lyra chalk RED,
Sensor bar typ. scan-
Environmental data LRT8/24… (5mm x 30mm) ning range
Ambient temp. (operation/storage) -20°C … +60°C/-40°C … +70°C on
Protective circuit 4) 2, 3 Wood, light, wet 0…80mm
VDE safety class 5) II, all-insulated OSB 0…60mm
Protection class 6) IP 67, IP 69K 7)
Eye safety 370nm: in acc. with EN 62471: exempt group .00-50-… Paper, black 0…40mm
470nm: in acc. with EN 62471: risk group 1 Paper, white 0…60mm
Standards applied IEC 60947-5-2 Piece of chalk 0…130mm
Options Wood, light, wet 0…350mm
L/D input OSB 0…300mm
Dark/light switching UB/0V or not connected .10-150-… Paper, black 0…150mm
L/D delay < 0.5ms
Paper, white 0…300mm
1) Typ. scanning range limit: max. scanning range attainable on objects with maximum size and luminescence effect Piece of chalk 0…500mm
2) Typ. operational scanning range: max. scanning range attainable on typical objects (see table)
3) At +25°C Yellow mark
4) 2=polarity reversal protection, 3=short circuit protection for all outputs Sensor (10mm x 30mm) typ. scan-
LRT8/24… on ning range
5) Rating voltage 250VAC
6) In stop position of the turning connector (turning connector locked) Paper, light 0…100mm
7) IP 69K test acc. to DIN 40050 part 9 simulated, high pressure cleaning conditions without the use of additives, .16-80-…
Paper, dark 0…40mm
acids and bases are not part of the test

Order guide Diagrams

Typ. light spot
Selection table
LRT 8/24.10-150-S12

LRT 8/24.04-100-S12

LRT 8/24.14-150-S12

35
LRT 8/24.16-80-S12

LRT 8/24.04-50-S12

30 A
Part no. 50119033

Part no. 50116732

Part no. 50041840

Part no. 50109343

Part no. 50119032

Diameter [mm]

B
25
C
20
Order code  15
10
5
0
0 25 50 75 100 150
Equipment  Scanning range [mm]
Filtering for detecting blue 400 … 750nm    A LRT 8/24.12…-S12, LRT 8/24.16…-S12
red 590 … 750nm   B LRT 8/24.0…-S12
C LRT 8/24.10…-S12
yellow 550 … 750nm 
green 520 … 750nm Remarks
Transmitter UV 370nm      Approved purpose:
blue 470nm  This product may only be
Hysteresis Standard    used by qualified person-
Large   nel and must only be used
Target application Detection of all visible luminescence    for the approved purpose.
Detection of white paper    This sensor is not a safety
sensor and is not to be
Detection of yellow print marks 
used for the protection of
Detection of green print marks persons.
Detection of red marks on wood 
Light spot Large  
Small   
LRT 8 … - 02 2012/08