Serviceline Industrial Sensors
Serviceline Explosion Protection

Thru-beam sensor LD31/LV31-6559/25/38/115

  • Operating voltage DC
  • Highly visible LED
  • Protection class II
  • Relay output
  • Compact and stable housing

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  LD31/LV31-6559/25/38/115

Product Description
Thru-beam sensor, 30 m detection range, red light, light on, DC version, relay contact output, fixed cable
System components
General specifications
Effective detection range0 ... 30 m
Threshold detection range43 m
Light sourceLED
Light typemodulated visible red light , 630 nm
Diameter of the light spotapprox. 800 mm at a distance of 30 m
Angle of divergenceEmitter: 0.5 ° , Receiver: 1.5 °
Functional safety related parameters
MTTFd620 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
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 voltage12 ... 30 V DC
Switching typelight on
Signal outputRelay, 1 alternator
Compliance with standards and directives
Directive conformityEMC Directive 2004/108/EC
Standard conformity
Product standardEN 60947-5-2:2007
IEC 60947-5-2:2007
Mechanical specifications
Housing width18 mm
Housing height62 mm
Housing depth35 mm
Degree of protectionIP67
ConnectionEmitter: 0.5 m , 2-wire
Receiver: 0.5 m , 5-wire
Optical facePMMA

Documents: LD31/LV31-6559/25/38/115

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF444 KB

Approvals+Certificates: LD31/LV31-6559/25/38/115

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of Conformity / EU-KonformitätserklärungDOC-1809BPDF185 KB
US CA UL General PurposeE87056LINK---

Associated Products: LD31/LV31-6559/25/38/115

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