Narrow machine guards
Mounts on a 15 mm frame without moving the guard.
Photoelectric · Ultra-thin, 13 series
LUE-13 Ultra-Thin Photoelectric Sensor
A 13 mm-wide sensor for mounting in narrow frames: 2–25 mm diffuse, 300 mm and 1,000 mm through-beam in front- and side-sensing versions, IP66 and under 1 ms
Model LUE-13RN(P) / 13DN(P) / 13LN(P) · Brand LE Raun · Category: Photoelectric Sensors
Width13 mm
Range2 mm – 1 m
Response<1 ms
ProtectionIP66
Overview
Thin sensors solve a mechanical problem, not an optical one: the guard frame on a small machine is often only 15 mm wide, and a 30 mm body forces the guard to be redesigned around the sensor. At 13 mm the LUE-13 mounts on the frame that already exists.Four optical configurations are offered so the beam can travel in the direction the machine allows — diffuse from the front, through-beam from the front, or through-beam from the side, with the 1,000 mm versions giving a longer throw for wider openings. Response is under 1 ms, which covers high-speed moving objects and small parts on a fast index.
Application scenarios
Vertical form-fill-seal jaw area
Detects film presence in a tight packaging head.
Small-part detection on indexing tables
Under 1 ms response catches parts at index speed.
Semiconductor wafer handling
Detects wafer presence in a narrow load port.
Label and film edge
Side-sensing through-beam reads an edge in a confined space.
Industries
- Packaging
- Semiconductor
- Electronics
- Medical devices
Technical specifications
| Models | LUE-13RN(P) diffuse · LUE-13DN(P) / 13DTN(P) through-beam, front sensing · LUE-13LN(P) / 13LTN(P) through-beam, side sensing |
|---|---|
| Sensing distance | 2–25 mm (white paper) / 4–10 mm (black paper) on RN · 300 mm or 1,000 mm on DN / LN · 300 / 1,000 mm on DTN / LTN |
| Sensing method | Diffuse reflection (front sensing) · through-beam (front or side sensing) |
| Hysteresis | 15 % or less of operating distance |
| Output mode | NPN or PNP open-collector |
| Minimum detectable object | Opaque objects φ1 mm and above |
| Response time / frequency | < 1 ms (operation / reset) |
| Light source | Red LED (650 nm) |
| Operating voltage | 12–24 V DC ±10% |
| Protection level | IP66 |
| Cable exit type | Cable-out type (2 m) |
| Product application | Transparent object detection, presence/absence detection, detection of small parts and high-speed moving objects |
| Response time | ≤1 ms |
| Current consumption | ≤15 mA |
| Output current | ≤100 mA |
| Residual voltage | ≤1.5 V |
| Circuit protection | Short-circuit, reverse polarity, over-current |
| Ambient illumination | Incandescent ≤3,000 lux, sunlight ≤10,000 lux |
| Vibration / shock | 10–55 Hz 1.5 mm, 500 m/s² (X, Y, Z each 2 h) |
Dimensions
| Item | Value |
|---|---|
| Cable | 2 m, cable-out type |
| Shapes | F / T / R / L / K / Y, all on the same 30 mm face |
The six shapes differ only in where the cable leaves and which way the slot opens; the 30 mm width is what you allow for in the fixture, and it does not change between them.
Wiring & output
| Lead | Colour |
|---|---|
| 2 | Blue |
| 3 | Black |
| 4 | White |
| — | Grey (5-wire types) |
How to specify
- 01
Choose the detection mode
Through-beam for the longest range and the most reliable operation in dust; retro-reflective for one-sided wiring over a few metres; diffuse for colour-independent presence at short range; background suppression where the conveyor or the machine frame sits behind the target.
- 02
Check the target and the background
A diffuse sensor sees the target, not the gap: a dark matt object halves the range. Background suppression types are set by distance, so the background must be at least 20 % further away than the target.
- 03
Match the light spot to the part
A 10 mm spot on a 2 mm wire gives a weak, unstable signal; choose a lens with a small spot at the working distance, or switch to a laser type.
- 04
Decide the output and the housing
NPN for Asian PLC inputs, PNP for European; 4-wire when the PLC needs both states. Square plastic for general use, stainless for washdown, fibre-optic where the space is too tight.
Why this series
13 mm body
Fits the guard frame or the gap that already exists instead of demanding a new bracket.
Front or side sensing
The beam leaves in the direction the machine allows.
Under 1 ms response
Detects high-speed moving objects and small parts on a fast index.
Questions
Is 2–25 mm enough for diffuse detection?
For detecting an object at a fixed short distance — film, a label, a part on a nest — yes. For variable distances use a longer-range model.
What is the difference between DN and LN?
DN senses through the front face, LN through the side. Choose by which direction the beam can travel in your machine.
Does it detect transparent film?
The diffuse version detects film at short range; for clear label-on-liner use the capacitive EU1000.
Need a quotation for LUE-13 Ultra-Thin?
Send your application details or the guard opening dimensions and we will specify the right model and configuration for your machine.