Keyence
Keyence LR-TB2000CL 60-2000 mm Laser Sensor
Measures distance from 60 to 2000 mm with a Class 1 red laser and selectable response times down to 2 ms
- TypeSensors
- Detection up to 2000 mm for long-range sensing
- 660 nm red laser with Class 1 safety rating
- Selectable response time from 2 ms to 2000 ms
- Four-unit interference prevention for reliable operation
- 45 mA maximum current draw at 20-30 VDC
Detection Range and Application
The Keyence LR-TB2000CL is a laser sensor offering a detectable distance of 60 to 2000 mm. It suits automation tasks requiring precise presence detection or positioning over medium ranges. Engineers select it for conveyor monitoring, robotic guidance or quality inspection stations. Its Class 1 red laser ensures safe operation without additional protective measures.
Build and Connectivity
The sensor operates on 20 to 30 VDC supply voltage with current consumption of 45 mA or less without load. A selectable response time from 2 ms to 2000 ms adapts to line speed or signal stability needs. Mutual interference prevention allows up to four units to operate in close proximity. Timer functions include OFF delay, ON delay and one-shot modes for flexible output control.
Upgrade Context
This model replaces older photoelectric sensors where longer range or smaller spot diameter improves reliability. The jump is worthwhile when detecting small targets at distance or when ambient light disrupts conventional LED sensors. It is not for applications needing sub-millimetre resolution or analogue distance output. Buyers requiring networked IO-Link communication should verify protocol support separately.
Highlights
- Detection up to 2000 mm for long-range sensing
- 660 nm red laser with Class 1 safety rating
- Selectable response time from 2 ms to 2000 ms
- Four-unit interference prevention for reliable operation
- 45 mA maximum current draw at 20-30 VDC
Specifications
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Questions about this item
What is the detection range of the LR-TB2000CL laser sensor?
The LR-TB2000CL detects objects from 60 mm to 2000 mm using a red laser with a 660 nm wavelength and an approximate 4 mm spot diameter at the sensing distance.
What are the mounting and power requirements for the LR-TB2000CL?
The sensor operates on 20 to 30 VDC Class 2 or LPS power with 10% ripple maximum and draws 45 mA or less without a load; mutual interference prevention supports up to four units mounted together.
How do I configure the response time on the LR-TB2000CL, and what is the common setup error?
Select one of five response times — 2 ms, 20 ms, 50 ms, 200 ms, or 2000 ms — via the timer function; the common error is leaving the timer OFF when the application requires an OFF delay, ON delay, or one-shot pulse.
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