The IFM E21106 is a fibre optic diffuse reflection sensor designed for short-range object detection in industrial automation applications. It is suitable for installations where the sensing location is difficult to access or where a compact sensing arrangement is required. The high-flex fibre construction allows installation through restricted spaces with a minimum bending radius of only 3 mm. It features a straight M4 sensing head and a total fibre length of 2000 mm. The sensor can be used with compatible IFM fibre-optic amplifiers for reliable diffuse reflection detection.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The E21106 operates as a diffuse reflection fibre optic sensor. It detects objects by receiving reflected light from the target through the fibre arrangement. Depending on the amplifier used, the fibre provides different detection ranges suitable for short-distance applications. The OCF high-power amplifier provides a higher detection range than standard amplifier options. This makes the product useful for compact machine sensing applications.
The fibre assembly is designed for applications requiring extremely small bending radii. With a minimum bending radius of 3 mm, the fibre can be routed through narrow machine spaces. The fibre uses PMMA material with an aluminium fibre head and PE sheath. Its 2000 mm length provides flexibility when positioning the amplifier away from the sensing location. This design helps simplify installation where conventional sensors cannot easily be positioned.
The E21106 features a straight sensing head with an M4 thread. The compact sensing head allows the fibre to be installed in small or restricted sensing areas. Its 23 mm sensing-head length provides a practical mechanical interface for mounting. The fibre arrangement uses a 0.5 mm core diameter and an external diameter of 1 mm. These dimensions support precise sensing in compact automation equipment.
Fibre optic diffuse reflection sensor
FT-11-EPA-M4/F217X0,06/2M configuration
Straight M4 sensing head
2000 mm total length
3 mm minimum bending radius
PMMA fibre material
Aluminium fibre head
PE sheath
Suitable for short-range detection
Compatible with IFM fibre amplifiers
Short-range object detection
Industrial automation
Packaging machinery
Machine inspection
Material handling systems
Factory automation
Restricted-space sensing applications
| Specification | Details |
|---|---|
| Brand | IFM |
| Model | E21106 |
| Product Type | Fibre Optic Diffuse Reflection Sensor |
| Product Name | FT-11-EPA-M4/F217X0,06/2M |
| Product Category | Acrylic Fibre Optics |
| Operating Principle | Diffuse reflection |
| Application | Small bending radius |
| Compatible Amplifiers | OB50, OBF, OCF, OO50 |
| OB50 Fibre Range | 10 mm |
| OBF Fibre Range | 10 mm |
| OCF High Power Range | 160 mm |
| OO50 Fibre Range | 30 mm |
| Ambient Temperature | -40 to +60 °C |
| Sensing Head Design | Straight |
| Sensing Head Thread | M4 |
| Sensing Head Length | 23 mm |
| Total Length | 2000 mm |
| Minimum Bending Radius | 3 mm |
| Core Diameter | 0.5 mm |
| Fibre Diameter | 2 × 217 × 0.06 mm |
| External Diameter | 1 mm |
| Fibre Material | PMMA |
| Fibre Head Material | Aluminium |
| Fibre Sheath Material | PE |
| Included Nuts | 2 × M4 hexagon nuts |
| Included Washers | 2 tooth lock washers |
| Included Knurled Nut | 1 × M11 |
| Included Adapter | 1 × OCF |
| Optional Accessory | E20600 fibre cutter |
| Pack Quantity | 1 pc |
| Weight | Approx. 33.5 g |
| Manufacturer | ifm electronic |
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