Digital fiber sensor FX-250 with OLED display
FX-250 digital fiber sensor – smart, easy to use, and eco-friendly
- Easy-to-read OLED display
- Large output indicator
- Fast response time of 35μs
Smart
Smart cover design and more compact body
The sensor body is very compact and fits in even small installation spaces. What is more, the new design uses a different type of cover, which requires less space for opening and closing.
Interference prevention function
Up to 4 sensors can be mounted side by side. To prevent mutual interference, you can set a different light emission frequency for each sensor.
Easy to use
Improved dual digital display
The improved display is very easy to read thanks to the high contrast and the sharp contours of numbers and letters. The dual display shows both the threshold value and the current incident light intensity.
The display is able to display characters just like printed text, so the names of setting options are much easier to understand.
Smart limit teaching
Limit teaching can be done with two pushes of a button even if the emitted light is so strong it causes incident light saturation. No need to adjust the amount of light emitted before teaching.
Eco-friendly
3 ECO mode settings available
By default, the digital display dims when no button is pressed for about 20 seconds. It is possible to completely switch off either the digital display or both the digital display and the output indicator when no button is pressed for about 2 minutes.
Stable light emission thanks to auto power control (APC) and four-element LED
The built-in APC circuit stabilizes the light emission, which tends to fluctuate for a short time when the power is switched on or when there are sudden changes in temperature. In addition, the LED has four instead of the conventional three light-emitting elements, which ensures stable light emission even over long periods of time.
Order guide
Please note that when you are planning to mount amplifiers in cascade, you need to order end plates separately. They are not supplied with the amplifier.
| Model No. | SAP material number | Emitting element | Output |
|---|---|---|---|
| FX-251-C2 | UFX251C2 | Red LED | NPN open-collector transistor |
| FX-251P-C2 | UFX251PC2 | PNP open-collector transistor |
Accessories
| Model No. | SAP material number | Description |
|---|---|---|
| MSDIN2 | UMSDIN2 | Mounting brackets |
| MSDINE | UMSDINE | End plates for amplifier |
Specifications
Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23°C.
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Type |
NPN output type |
PNP output type |
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Model number |
FX-251-C2 |
FX-251P-C2 |
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Supply voltage |
12 to 24V DC (±10%, ripple P-P max. 10%) |
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Power consumption |
Normal operation: max. 960mW (current consumption max. 40mA at 24V supply voltage) |
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Output |
NPN |
NPN open-collector transistor
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PNP |
PNP open-collector transistor
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Output operation |
Switchable either Light-ON or Dark-ON by L/D mode |
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Short-circuit protection |
Incorporated |
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Response time |
H-SPD: max. 35μs, FAST: max. 60μs, STD: max. 250μs, LONG: max. 2ms, H-PWR: max. 24ms |
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Output indicator |
Orange LED turns on when output is ON |
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Sensitivity setting |
2-point teaching / Limit teaching / Full-auto teaching / Manual adjustment |
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Threshold value adjustment function |
Incorporated |
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Incident light sensitivity adjustment function |
Incorporated, max. 100 steps |
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Incident light intensity display range |
H-SPD / FAST / STD: 0 to 4000, LONG / H-PWR: 0 to 9999 |
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Digital display |
White organic EL display |
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Various settings |
Shift amount setting (percentage, fixed value), display style setting, display inversion setting, ECO setting, zero-set function |
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Timer function |
Incorporated with variable OFF-delay / ON-delay / One-shot / switchable either effective or ineffective Setting range: 1 to 9999ms approx. in increments of 1ms |
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Interference prevention function |
Incorporated (up to 4 units) |
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Degree of protection |
IP40 (IEC) |
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Ambient temperature |
-10 to +55°C For 4 to 7 units mounted in cascade: -10 to +50°C or if 8 to 16 units are mounted in cascade: -10 to +45°C) (No dew condensation or icing allowed), storage: -20 to +70°C |
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Ambient humidity |
35 to 85% RH, storage: 35 to 85% RH |
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Ambient illuminance |
Incandescent light: max. 10,000 ℓx at the light-receiving face |
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Voltage withstandability |
1000V AC for one minute between all supply terminals connected together and enclosure |
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Insulation resistance |
Min. 20MΩ, with 250 V DC megger between all supply terminals connected together and enclosure |
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Vibration resistance |
10 to 150 Hz frequency, 0.75 mm in double amplitude (100 m/s2 max.) in X, Y and Z directions for two hours each (without power supply) |
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Shock resistance |
98m/s2 acceleration (10G approx.) in X, Y and Z directions five times each (without power supply) |
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Emitting element (modulated) |
Red LED (Peak emission wavelength: 660nm) |
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Material |
Housing, protective cover, and keys: polycarbonate |
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Cable |
0.2mm2 3-core cab tire cable, 2m long |
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Cable extension |
Extension up to total 100m is possible with a cable of min. 0.3mm2 and a supply voltage of at least 12V DC |
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Weight |
Net weight: 55g approx. |
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Downloads
| Name | Size | Date | Language |
|---|---|---|---|
| FX-250 series, 3D Data | 173 KB | 30.05.2025 | English |
| Name | Size | Date | Language |
|---|---|---|---|
| FX-250 series, 2D Data | 21 KB | 30.05.2025 | English |
| Name | Size | Date | Language |
|---|---|---|---|
| Sensor Selection Guide for Packaging Industry | 15 MB | 12.07.2022 | English |
| Name | Size | Date | Language |
|---|---|---|---|
| Data sheet FX-250 | 24 MB | 29.08.2025 | English |
| Name | Size | Date | Language |
|---|---|---|---|
| FV-FR1/FR4 Instruction Manual, MJE-FVFR | 564 KB | 23.03.2022 | English |
| Fiber head FT-/FD-/FR Instruction Manual (FX-AT2, FX-AT3), MJEC-FXAT23 | 577 KB | 25.03.2025 | English,Japanese |
| FT-□, FD-□, FR-□ Instruction Manual (FX-AT5, AT6, AT7), MJEC-FXAT4567 | 641 KB | 01.09.2025 | English,Japanese |
| Name | Size | Date | Language |
|---|---|---|---|
| Installation instructions FX-250 | 962 KB | 30.05.2025 | English |
| Name | Size | Date | Language |
|---|---|---|---|
| Top seller - Automation products, 6215euen | 3 MB | 01.05.2024 | English |
| Übersicht Topseller Automatisierungstechnik, 6215eude | 3 MB | 02.05.2024 | German |
| Catálogo resumen - Gama de producto automatización industrial | 6 MB | 25.09.2023 | Spanish |
| Les essentiels - Produits d’automatisme, 6215eufr | 5 MB | 16.06.2023 | French |
| Brochure "Focus Automazione" | 8 MB | 08.01.2025 | Italian |