KEYENCE LR-Z Series: All-Purpose Laser Sensor
Visual representation: A compact, metallic sensor unit with a visible red laser beam emitted from its front, aimed at various targets like metal cylinders and transparent objects. The KEYENCE logo is prominently displayed. Certifications like CE, UL, and IO-Link are visible.
True Do-It-All Sensor
The KEYENCE LR-Z Series represents a perfect combination of simplicity and performance, designed to be a versatile solution for various detection tasks.
Universal Change Detection (U.C.D. Function)
The innovative U.C.D. Function allows the sensor to detect any target that varies from the background. This is achieved by simply pressing and holding the SET & UP buttons simultaneously, enabling the sensor to learn and adapt to the reference background. It monitors changes in both position and intensity, providing reliable and stable detection with ease.
Visual representation: Three diagrams showing the LR-ZH models detecting different targets. One shows a sensor detecting a target at a distance, another detecting intensity changes on a surface, and a third detecting a target on a different colored background. Text highlights "SIMPLE SET UP", "UNIVERSAL CHANGE DETECTION (U.C.D. Function)", "DISTANCE", and "INTENSITY".
Key Detection Capabilities
- Transparent Targets: Effectively detects clear objects such as bottles and plastic films, which are typically challenging for conventional sensors.
- Contrast Changes: Reliably detects targets based on differences in contrast against their background, even when targets are close to the background.
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Position Based Detection: Utilizes diffuse sensing and position-based measurement to detect targets regardless of their shape, color, or surface finish, without requiring a reflector.
Visual representation: A sensor emitting a red laser beam towards a metal cylinder. The text indicates a maximum detection range of "500 mm / 19.69".
- Dark Targets: The Light Power Control Function automatically adjusts light intensity to ensure proper detection of dark and distant targets.
- Metal Targets: Achieves stable detection of shiny metal targets, even at extreme angles, through the versatile DATUM Calibration feature.
Additional Features
- Rugged Metal Housing: The durable stainless steel housing enhances longevity in demanding factory environments.
- Water and Dust Resistance: Features impressive IP68 and IP69K enclosure ratings, ensuring reliable detection in washdown areas and environments with heavy buildup.
- 7-Segment LED Display: Facilitates easy installation, calibration, and monitoring with an intuitive, clear display.
- Highly Visible Indicator: The sensor's output status is easily recognized from a distance, simplifying troubleshooting.
- Simplified Operation: Designed with three buttons, allowing users to fully utilize the sensor's innovative features.
- Dynamic Stability Control (D.S.C.): This function ensures stable detection by compensating for background variations caused by dust or vibration.
Product Lineup
The LR-Z Series offers a range of models with different detecting distances, connection types, and outputs to suit various applications.
| Type | Detecting Distance | Spot Diameter | Standard Detectable Deviation | Connection Method | Output | Model | Weight |
|---|---|---|---|---|---|---|---|
| M18 threaded mount w/ M12 connector | 25 to 490 mm (0.98" to 19.29") | Approx. Ø3 mm (Ø0.12") | 9 mm (0.35") up to 170mm, 25 mm (0.98") up to 290mm, 40 mm (1.57") up to 390mm, 50 mm (1.97") up to 490mm | M12 4-pin | NPN/PNP selectable | LR-ZH490CB | - |
| M18 threaded mount w/ M12 connector | 25 to 240 mm (0.98" to 9.45") | Approx. 2.4 mm (0.09") / 1.2 mm (0.05") | 9 mm (0.35") up to 170mm, 25 mm (0.98") up to 240mm | M12 4-pin | Bipolar (NPN+PNP) | LR-ZB240CB | 75 g |
| M18 threaded mount w/ M12 connector | 25 to 90 mm (0.98" to 3.54") | Approx. 2 mm (0.08") / 1 mm (0.04") | 1.5 mm (0.06") up to 40mm, 3 mm (0.12") up to 90mm | M12 4-pin | NPN | LR-ZB90CB | - |
| Rectangular w/ cable | 35 to 500 mm (1.38" to 19.69") | Approx. Ø3 mm (Ø0.12") | 9 mm (0.35") up to 180mm, 25 mm (0.98") up to 300mm, 40 mm (1.57") up to 400mm, 50 mm (1.97") up to 500mm | 2 m cable | NPN / PNP | LR-ZH500N / LR-ZH500P | 110 g |
| Rectangular w/ M8 connector | 35 to 500 mm (1.38" to 19.69") | Approx. Ø3 mm (Ø0.12") | 9 mm (0.35") up to 180mm, 25 mm (0.98") up to 300mm, 40 mm (1.57") up to 400mm, 50 mm (1.97") up to 500mm | M8 4-pin | NPN / PNP | LR-ZH500CN / LR-ZH500CP | 55 g |
| Rectangular w/ cable | 35 to 250 mm (1.38" to 9.84") | Approx. 2.4 mm (0.09") / 1.2 mm (0.05") | 9 mm (0.35") up to 180mm, 25 mm (0.98") up to 250mm | 2 m cable | NPN / PNP | LR-ZB250AN / LR-ZB250AP | 110 g |
| Rectangular w/ M8 connector | 35 to 250 mm (1.38" to 9.84") | Approx. 2.4 mm (0.09") / 1.2 mm (0.05") | 9 mm (0.35") up to 180mm, 25 mm (0.98") up to 250mm | M8 4-pin | NPN / PNP | LR-ZB250CN / LR-ZB250CP | 55 g |
| Rectangular w/ cable | 35 to 100 mm (1.38" to 3.94") | Approx. 2 mm (0.08") / 1 mm (0.04") | 1.5 mm (0.06") up to 50mm, 3 mm (0.12") up to 100mm | 2 m cable | NPN / PNP | LR-ZB100N / LR-ZB100P | 110 g |
| Rectangular w/ M8 connector | 35 to 100 mm (1.38" to 3.94") | Approx. 2 mm (0.08") / 1 mm (0.04") | 1.5 mm (0.06") up to 50mm, 3 mm (0.12") up to 100mm | M8 4-pin | NPN / PNP | LR-ZB100CN / LR-ZB100CP | 55 g |
Mounting Brackets and Accessories
Various mounting brackets and reflectors are available to facilitate installation and enhance performance, especially for U.C.D. function applications.
| Type | Model | Compatible models | Material/Weight |
|---|---|---|---|
| Standard mounting bracket (M3 screw x 2 supplied) | OP-87408 | Rectangular | SUS316L, 30 g |
| Rear mounting bracket (M3 screw x 2 supplied) | OP-87409 | Rectangular | SUS316L, 30 g |
| Robust mounting bracket (t = 3) (M3 screw x 2 supplied) | OP-87410 | Rectangular | SUS316L, 170 g |
| M18 nut & Lock washer set | OP-87413 | M18 Threaded Mount | M18 nut SUS316L, 10 g; Lock washer SUS304, 5 g |
| Type | Model | Compatible models | Material/Weight |
|---|---|---|---|
| Adjustable bracket (M3 screw x 2 supplied) | OP-87404 | Rectangular | Zinc nickel plating, 95 g |
| Adjustable bracket | OP-87405 | M18 Threaded Mount | Zinc nickel plating, 100 g |
| Screw length: 45 mm (1.77") | OP-87406 | - | Iron nickel plating, 70 g |
| Screw length: 65 mm (2.56") | OP-87407 | - | Iron nickel plating, 80 g |
| Type | Model | Compatible models | Maximum detecting distance | Appearance |
|---|---|---|---|---|
| Reflector | R-6L | LR-ZH models | 700 mm (27.56") | Visual representation: A circular reflector. |
| Reflective tape | OP-87123 | LR-ZH models | 700 mm (27.56") | Visual representation: A square reflective tape. |
Specifications Overview
The LR-Z Series offers robust specifications suitable for industrial environments.
| Power Voltage | 10 to 30 VDC, including 10% ripple (P-P), Class 2 or LPS |
| Power Consumption | 450 mW or less (18 mA or less at 24 V, 34 mA or less at 12 V) |
| Response Time | 1.5 ms / 10 ms / 50 ms selectable |
| Light Source | Red laser (660 nm) Class 1 or Class 2 laser product (IEC60825-1, FDA (CDRH) Part1040.10) |
| Indicator | 3-digit 7-segment display (white/red), output indicator (yellow), DATUM indicator (orange), 1 spot indicator (green) |
| Control Output | NPN Open collector/PNP Open collector selectable, NPN+PNP Open collector selectable |
| Protection Circuit | Reverse power connection, output overcurrent, output surge, reverse output connection |
| Environmental Resistance | IP68 (IEC60529), IP69K (DIN40050-9), NEMA 4X, 6P, 13 (NEMA250), ECOLAB, Diversey |
| Ambient Light | Incandescent lamp: 2000 to 10000 lux, Sunlight: 4000 to 20000 lux (depending on model and distance) |
| Ambient Temperature | -10 to +50°C (14 to 122°F) |
| Storage Temperature | -25 to +75°C (-13 to 167°F) |
| Material | Case: SUS316L, Display: PES, Lens cover: PMMA, etc. |
Visual representation: A graph showing "Minimum Detectable Position Change (Typical Data)" versus "Distance to Background". Different model series (LR-ZH, LR-ZB) are plotted with their respective detection capabilities.
Dimensions
Detailed dimension drawings are provided for various sensor models and accessories, including M18 threaded mount types and rectangular types, as well as mounting brackets and connectors. These diagrams specify critical measurements such as overall size, mounting hole positions, receiving/transmitting point locations, and cable connection details, ensuring precise integration into existing systems.
Related Products
KEYENCE offers a broader range of sensors, including:
- LR-T Series TOF Laser Sensors: Feature long-range detection (up to 5 m / 16.40'), custom ICs for superior capabilities, and metal bodies with IP65/IP67 ratings. Available with adjustable spot analog output.
- LR-W Series Full-Spectrum Sensors: Detect any changes in appearance using an innovative White LED light source. They offer long range, dual spot, and fiber models, with controller expansion for increased functionality.
