Serviceline Industrial Sensors
Serviceline Explosion Protection

Thru-beam sensor LD31/LV31/76a/115/136

LD31/LV31/76a/115/136
  • Highly visible LED
  • Powerful push-pull output
  • Compact and stable housing
  • Protection class II

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 or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  LD31/LV31/76a/115/136

Product Description
Thru-beam sensor, 30 m detection range, red light, dark on, DC version, 2 push-pull outputs, emitter switch-off, fixed cable
System components
EmitterLD31/76a/115
ReceiverLV31/115/136
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: 1.5 ° , Receiver: 1.5 °
Ambient light limit50000 Lux ; according EN 60947-5-2
Functional safety related parameters
MTTFd750 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)90 %
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 voltage10 ... 30 V DC
Ripple10 %
No-load supply currentEmitter: ≤ 18 mA
Receiver: ≤ 18 mA
Input
Test inputemitter deactivation at +UB
Output
Switching typedark on
Signal output2 push-pull (4 in 1) outputs, short-circuit protected, reverse polarity protected
Switching voltagemax. 30 V DC
Switching currentmax. 100 mA
Voltage drop≤ 1.5 V
Switching frequency≤ 250 Hz
Response time≤ 2 ms
Conformity
Product standardEN 60947-5-2
Approvals and certificates
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
UL approvalcULus Listed, Class 2 Power Source, Type 1 enclosure
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-30 ... 55 °C (-22 ... 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 , 3-wire
Receiver: 2 m fixed cable , 4-wire
Material
HousingPolycarbonate
Optical facePMMA
MassEmitter: 98 g
Receiver: 132 g

Documents: LD31/LV31/76a/115/136

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF308 KB

CAD+CAE: LD31/LV31/76a/115/136

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS512 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP288 KB
CAD Portal / CAD PortalLINK---

Approvals+Certificates: LD31/LV31/76a/115/136

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

Associated Products: LD31/LV31/76a/115/136

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