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 |
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| Housing |
Polycarbonate |
| Optical face |
PMMA |
| Mass |
Emitter: 24 g
Receiver: 24 g |
Associated Products: M100/MV100-RT/76b/102/115
| Accessories |
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| Female cordset single-ended M12 straight A-coded, 4-pin, PUR cable grey
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| Female cordset single-ended M12 angled A-coded, 4-pin, PUR cable grey
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| Mounting bracket
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| Mounting bracket narrow
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| Mounting bracket narrow
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| Mounting aid for round steel ø 12 mm or sheet 1.5 mm … 3 mm
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| Mounting bracket for mounting on flat surfaces with 2 M4 screws
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| Stainless steel mounting bracket with adjustable half clamp on the side
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