Serviceline Industrial Sensors
Serviceline Explosion Protection

Thru-beam sensor LA31/LK31/31/115

LA31/LK31/31/115
  • Cost-optimized series for standard tasks
  • Large construction with small housing
  • Highly visible LED
  • Version for universal voltages
  • Relay output
  • Wide range of mounting options

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  LA31/LK31/31/115

Product Description
Thru-beam sensor, 30 m detection range, red light, dark on, AC/DC version, relais output, fixed cable
System components
EmitterLA31/115
ReceiverLK31/31/115
General specifications
Effective detection range0 ... 30 m
Threshold detection range43 m
Light sourceLED
Light typemodulated visible red light , 630 nm
Alignment aidLED yellow:
1. LED illuminates: Sufficient light signal received, emitter and receiver alignment is correct
2. LED flashes: Reaching switching point
3. LED off: Light beam is interrupted or the alignment is out
Diameter of the light spotapprox. 800 mm at a distance of 30 m
Angle of divergenceEmitter: 0.5 ° , Receiver: 1.5 °
Ambient light limit50000 Lux ; according EN 60947-5-2
Functional safety related parameters
MTTFd620 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
Operation indicatorLED green: power on
Function indicatorLED yellow:
1. LED lit constantly: signal > 2 x switching point (function reserve)
2. LED flashes: signal between 1 x switching point and 2 x switching point
3. LED off: signal < switching point
Electrical specifications
Operating voltage24 ... 240 V AC
12 ... 240 V DC
No-load supply currentEmitter: ≤ 20 mA
Receiver: ≤ 20 mA
Power consumptionEmitter: ≤ 1 VA
Receiver: ≤ 1 VA
Output
Switching typedark on
Signal outputRelay, 1 alternator
Switching voltagemax. 250 V AC/DC
Switching currentmax. 3 A
Switching powerDC: max. 150 W AC: max. 750 VA
Switching frequency≤ 20 Hz
Response time≤ 25 ms
Conformity
Product standardEN 60947-5-2
Compliance with standards and directives
Standard conformity
StandardsEN 62103
Approvals and certificates
EAC conformityTR CU 020/2011
TR CU 004/2011
Protection classII , rated voltage ≤ 250 V AC with pollution degree 1-2 according to IEC 60664-1 Output circuit basis insulation of input circuit according to EN 50178, rated insulation voltage 240 V AC
CCC approvalCertified by China Compulsory Certification (CCC)
Ambient conditions
Ambient temperature-25 ... 55 °C (-13 ... 131 °F)
Storage temperature-40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Housing width18 mm
Housing height62 mm
Housing depth35 mm
Degree of protectionIP67
ConnectionEmitter: 2 m fixed cable , 2-wire
Receiver: 2 m fixed cable , 5-wire
Material
HousingPolycarbonate
Optical facePMMA
MassEmitter: 116 g
Receiver: 131 g

Documents: LA31/LK31/31/115

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF281 KB

Approvals+Certificates: LA31/LK31/31/115

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of Conformity / EU-KonformitätserklärungDOC-0536APDF129 KB

Associated Products: LA31/LK31/31/115

Accessories
Mounting bracket fa
Mounting bracket narrowfa
Mounting bracket narrowfa
Mounting aid for round steel ø 12 mm or sheet 1.5 mm ... 3 mmfa
Mounting bracket for mounting on flat surfaces with 2 M4 screwsfa
Stainless steel mounting bracket with adjustable half clamp on the sidefa