LD31/LV31/25/73C/76a/136 – Thru-beam Sensors – PEPPERL+FUCHS Photoelectric Sensors

$ 148.35

SKU: LD31/LV31/25/73C/76a/136

In through-beam photoelectric sensing, also known as opposed mode, the transmitter and emitter are in separate housings. Light emitted from the transmitter is aimed directly at the receiver. When an object breaks the beam of light between the emitter and receiver, the receiver’s output changes state.

Through-beam sensing is the most efficient sensing mode which results in the longest sensing ranges and highest excess gain. This high gain enables through-beam sensors to be reliably used in foggy, dusty and dirty environments.

General specifications
Effective detection range 0 … 30 m
Threshold detection range 43 m
Light source LED
Light type modulated visible red light , 630 nm
Alignment aid LED 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 spot approx. 800 mm at a distance of 30 m
Opening angle Emitter: 1.5 ° , Receiver: 1.5 °
Ambient light limit 50000 Lux ; according to EN 60947-5-2
Functional safety related parameters
MTTFd 750 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 90 %
Indicators/operating means
Operation indicator LED green: power on
Function indicator LED 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 voltage 10 … 30 V DC
Ripple 10 %
No-load supply current Emitter: ≤ 18 mA
Receiver: ≤ 18 mA
Input
Test input emitter deactivation at +UB
Output
Switching type light-on
Signal output 2 push-pull (4 in 1) outputs, short-circuit protected, reverse polarity protected
Switching voltage max. 30 V DC
Switching current max. 100 mA
Voltage drop ≤ 1.5 V
Switching frequency ≤ 250 Hz
Response time ≤ 2 ms
Conformity
Product standard EN 60947-5-2
Approvals and certificates
Protection class II , 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 approval cULus Listed, Class 2 Power Source, Type 1 enclosure
CCC approval CCC 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 width 18 mm
Housing height 62 mm
Housing depth 35 mm
Degree of protection IP67
Connection 4-pin, M12 x 1 connector
Material
Housing Polycarbonate
Optical face PMMA
Mass Emitter: 24 g
Receiver: 24 g

 

Associated Products: M100/MV100-RT/76b/102/115

Accessories

Female cordset single-ended M12 straight A-coded, 4-pin, PUR cable grey

Female cordset single-ended M12 angled A-coded, 4-pin, PUR cable grey

Mounting bracket

Mounting bracket narrow

Mounting bracket narrow

Mounting aid for round steel ø 12 mm or sheet 1.5 mm … 3 mm

Mounting bracket for mounting on flat surfaces with 2 M4 screws

Stainless steel mounting bracket with adjustable half clamp on the side
Weight 0.024 kg

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