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LR-ZB250AN

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KEYENCE LR-ZB250AN is a rectangular NPN laser sensor with a 35 to 250 mm detection range, 2 m cable and IP68/IP69K enclosure protection.
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Technical specifications for LR-ZB250AN

  • Manufacturer:
    KEYENCE
  • Part Number:
    LR-ZB250AN
  • Product Family:
    KEYENCE
  • Product Type:
    Distance-based Laser Sensor
  • Stock:
    1
  • Detection Principle:
    Distance-based laser sensing
  • Detection Range:
    35 to 250 mm
  • Output Type:
    NPN
  • Response Time:
    1.5 ms, 10 ms or 50 ms selectable
  • Supply Voltage:
    10 to 30 VDC
  • Cable:
    2 m PVC
  • Protection Rating:
    IP68 and IP69K
  • Housing Style:
    Rectangular
  • Weight:
    0.11 kg
  • Tariff Code:
    Please confirm the destination before shipping
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Sensing Setup Installation Fault Isolation Product Applications

Features:

  • Distance evaluation: Detection is based on target position within the configured sensing window.
  • Selectable response: Three response settings balance speed and stability for the application.
  • Protected housing: IP68 and IP69K ratings support demanding industrial installation when the cable and mounting are correct.
The sensor is suited to presence and position checks where background suppression and a defined operating window are required.

The NPN output must match the controller input convention and the 10 to 30 VDC supply used by the machine.

Reliable commissioning uses representative targets, verifies the full production tolerance and records the final teach condition.

Apter Power can help confirm the KEYENCE LR-ZB250AN Distance-based Laser Sensor, output logic and installation evidence before quotation.
KEYENCE LR-ZB250AN Distance-based Laser Sensor Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Target sample: Teach and test using the actual material, color, surface and smallest expected part.
  • Background margin: Confirm the configured window rejects fixtures and moving backgrounds.
  • Response choice: Select speed only after confirming signal stability at production motion.
  • Indicator review: Record the final indication and output behavior for maintenance reference.
  • Rigid mounting: Prevent bracket movement from shifting the laser spot or sensing distance.
  • Optical access: Keep the emitting and receiving window clean and unobstructed.
  • Cable routing: Protect the fixed cable from flexing, crushing and electrical noise.
  • Supply proof: Verify DC polarity and NPN input compatibility before energizing the channel.
  • No detection: Check power, output logic, teach state, alignment and target distance in that order.
  • False switching: Inspect vibration, shiny backgrounds, contamination and marginal response settings.
  • Intermittent signal: Move the cable and connector path under controlled conditions to expose damage.
  • Replacement comparison: Match the complete suffix, output type and cable arrangement before substitution.
  • Part presence: Confirms a workpiece enters a defined machine position.
  • Position check: Distinguishes target distance from a fixed background or fixture.
  • Packaging equipment: Detects products and containers within a compact guarded machine.
  • Assembly verification: Provides a discrete NPN signal after a taught optical condition is met.
Description
LR-ZB250AN is a distance-based laser sensor designed to detect targets across a specified 35 to 250 mm operating range.

LR-ZB250AN provides an NPN output, selectable response times and a fixed 2 m PVC cable for compact machine integration.

LR-ZB250AN should be aligned and taught against the real target, background and mounting geometry before its output is trusted for machine control.
Alternative Names
LR-ZB250AN LR ZB250AN KEYENCE LR-ZB250AN
Technical notes
LR-ZB250AN performance depends on optical alignment, target reflectivity and the taught distance window rather than electrical continuity alone. Secure the sensor against vibration, route the 2 m cable away from noise and mechanical damage, confirm NPN logic, and prove detection with minimum and maximum production targets before enabling automatic operation.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
LR-ZB250AN switches correctly on one sample but misses darker parts. What should be tested?
Repeat teaching and validation with the darkest, smallest and most angled production targets at both ends of the allowed distance range.
LR-ZB250AN detects the machine background when no part is present. What adjustment is appropriate?
Review alignment and the distance window so the real target is accepted while fixtures and moving background surfaces remain outside the decision margin.
Can LR-ZB250AN connect directly to a sourcing PLC input?
Confirm the input convention first because the sensor uses an NPN output and must match the controller circuit and common reference.
LR-ZB250AN becomes intermittent after machine vibration increases. Where should inspection begin?
Check bracket rigidity, fastener condition, laser-spot movement and cable strain before changing the teach setting.
What should be documented after teaching LR-ZB250AN on a production machine?
Record the target and background conditions, mounting position, response setting, indicators and output behavior across the accepted part range.
A similar laser sensor is offered instead of LR-ZB250AN. Is a matching range enough?
No. Output logic, response behavior, mounting, cable arrangement, environmental rating and optical performance all require validation.

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