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 |
| Light source |
IRED |
| Light type |
Infrared, continuous light , 940 nm |
| Target size |
0.8 x 1.8 mm |
| Slot width |
5 mm |
| Slot depth |
8.5 mm |
| Ambient light limit |
1000 Lux |
| Functional safety related parameters |
| MTTFd |
3760 a |
| Mission Time (TM) |
20 a |
| Diagnostic Coverage (DC) |
0 % |
| Indicators/operating means |
| Function indicator |
red LED lights up when receiving the light beam |
| Electrical specifications |
| Operating voltage |
5 … 24 V DC , class 2 |
| No-load supply current |
max. 20 mA |
| Time delay before availability |
< 2 ms |
| Output |
| Switching type |
light/dark on |
| Signal output |
2 NPN complementary , overvoltage protected |
| Switching voltage |
max. 30 V DC |
| Switching current |
max. 50 mA , resistive load |
| Voltage drop |
max. 0.2 V at 10 mA max. 0.6 V at 50 mA |
| Switching frequency |
max. 5 kHz |
| Response time |
40 µs Light beam is not interrupted
80 µs Light beam is interrupted |
| Repeat accuracy |
0.03 mm |
| Compliance with standards and directives |
| Directive conformity |
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| EMC Directive 2004/108/EC |
EN 60947-5-2:2007+A1:2012 |
| Standard conformity |
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| Standards |
UL 60947-5-2 |
| Approvals and certificates |
| UL approval |
cULus Recognized, Class 2 Power Source |
| CCC approval |
CCC approval / marking not required for products rated ≤36 V |
| Ambient conditions |
| Ambient temperature |
-25 … 55 °C (-13 … 131 °F) |
| Storage temperature |
-30 … 80 °C (-22 … 176 °F) |
| Pollution degree |
2 |
| Mechanical specifications |
| Housing width |
25.5 mm |
| Housing height |
13.4 mm |
| Degree of protection |
IP50 |
| Connection |
2 m PVC cable, 4 x 0.09 mm2 |
| Material |
|
| Housing |
PBT |
| Mass |
25 g |
| Tightening torque, fastening screws |
0.6 Nm |
| Cable length |
2 m |
Associated Products: M100/MV100-RT/76b/102/115
| Accessories |
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| Mounting aid for ML100 series, mounting bracket
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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 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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