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 … 10 m |
| Threshold detection range |
15 m |
| Light source |
LED |
| Light type |
modulated visible red light |
| Diameter of the light spot |
approx. 1 m at a distance of 15 m |
| Opening angle |
approx. 2 ° |
| Optical face |
frontal |
| Ambient light limit |
EN 60947-5-2 |
| Functional safety related parameters |
| MTTFd |
860 a |
| Mission Time (TM) |
20 a |
| Diagnostic Coverage (DC) |
0 % |
| Indicators/operating means |
| Operation indicator |
LED green: power on |
| Function indicator |
Receiver: LED yellow, lights up when light beam is free, flashes when falling short of the operating reserve ; OFF when light beam is interrupted |
| Control elements |
sensitivity adjustment |
| Control elements |
Light-on/dark-on changeover switch |
| Electrical specifications |
| Operating voltage |
10 … 30 V DC |
| Ripple |
max. 10 % |
| No-load supply current |
Emitter: ≤ 15 mA
Receiver: ≤ 8 mA |
| Input |
| Test input |
emitter deactivation at +UB |
| Output |
| Switching type |
The switching type of the sensor is adjustable. The default setting is: light-on |
| Signal output |
1 PNP output, short-circuit protected, reverse polarity protected, open collector |
| Switching voltage |
max. 30 V DC |
| Switching current |
max. 100 mA , resistive load |
| Voltage drop |
≤ 1.5 V DC |
| Switching frequency |
1000 Hz |
| Response time |
0.5 ms |
| Conformity |
| Product standard |
EN 60947-5-2 |
| Approvals and certificates |
| UL approval |
cULus Listed, Class 2 Power Source or listed Power Supply with a limited voltage output with (maybe integrated) fuse (max. 3.3 A according UL248), Type 1 enclosure |
| CCC approval |
CCC approval / marking not required for products rated ≤36 V |
| Ambient conditions |
| Ambient temperature |
-30 … 60 °C (-22 … 140 °F) |
| Storage temperature |
-40 … 70 °C (-40 … 158 °F) |
| Mechanical specifications |
| Housing width |
11 mm |
| Housing height |
31 mm |
| Housing depth |
20 mm |
| Degree of protection |
IP67 |
| Connection |
M8 x 1 connector, 4-pin |
| Material |
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| Housing |
PC (Polycarbonate) |
| Optical face |
PMMA |
| Mass |
approx. 20 g (emitter and receiver) |
| Tightening torque, fastening screws |
0.6 Nm |
Associated Products: M100/MV100-RT/76a/95/103
| Accessories |
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| Female cordset single-ended M8 angled A-coded, 4-pin, PUR cable grey
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| Female cordset single-ended M8 straight A-coded, 4-pin, PUR cable grey
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| Mounting aid for round steel ø 12 mm or sheet 1.5 mm … 3 mm
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| Mounting aid for round steel ø 12 mm or sheet 1.5 mm … 3 mm
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| Mounting aid for ML100 series, Mounting bracket
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| Mounting aid for ML100 series, Mounting bracket
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| Mounting aid for ML100 series
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| Mounting aid for ML100 series
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| Mounting bracket
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