Keyence LV-NH35 Spot Type Laser Sensor Head

Keyence LV-NH35 Digital Laser Sensor Head

Product Introduction

The LV-NH35 belongs to the Keyence LV-N series, a broad family of laser sensor heads and amplifiers used for positioning, presence detection, and small-part inspection. Specifically, this model uses a diffuse-reflective, spot type design with a straight-beam coaxial layout. Production engineers select the LV-NH35 when a visible red beam helps with alignment and when the target surface returns enough light without a reflector. Furthermore, the coaxial beam path simplifies mounting in tight fixtures where the head must face the workpiece directly.

Technical Specifications

The LV-NH35 emits a visible red semiconductor laser at a wavelength of 660 nm. Keyence classifies the head as a Class 1 Laser Product under FDA CDRH Part 1040.10 and IEC 60825-1, so it needs no special laser safety controls in most installations. The detecting distance reaches 750 mm maximum in MEGA mode. Moreover, the spot type optics concentrate the beam for stable detection of small targets. The head carries no output stage of its own, because the connected LV-N amplifier handles switching and signal processing.

Electrical and Mechanical Parameters

The LV-NH35 receives power from the LV-N amplifier through a dedicated cable, so the head needs no separate supply. Keyence does not publish a power consumption figure or output rating for this head. The case uses glass reinforced plastic, which resists mechanical stress in machine fixtures. Operating temperature ranges from -10 to +55 °C, and humidity tolerance is 35 to 85% RH without condensation. The head weighs approximately 65 g, a light load for small brackets and robot end effectors.

Installation Guide

First, mount the LV-NH35 on a rigid bracket and aim the beam at the target surface. Next, connect the dedicated head cable to the LV-N amplifier and lock the connector firmly. Keep the beam path clear of reflective objects that could cause false returns. After that, set the amplifier to the response mode that matches the required cycle time. Finally, run a teach or threshold adjustment and confirm stable detection across the full operating range. Clean the front window periodically, because dust reduces the returned light level.

Packaging List

• Keyence LV-NH35 sensor head (1 pc)

• Dedicated head cable (depending on configuration)

• Instruction sheet

FAQ

Q1: Which amplifiers work with the LV-NH35?
The LV-NH35 connects to LV-N series amplifiers such as the LV-N11P main unit and LV-N12P expansion unit through the dedicated head cable.

Q2: What is the maximum detection distance?
The LV-NH35 reaches 750 mm in MEGA mode. Shorter response modes reduce the usable distance.

Q3: Is the LV-NH35 laser safe for operators?
Yes. It is a Class 1 Laser Product under IEC 60825-1 and FDA CDRH Part 1040.10, so normal operation requires no protective eyewear.

Q4: Does the sensor head need its own power supply?
No. The LV-NH35 draws power from the LV-N amplifier, so only the amplifier connects to 24 VDC.

Q5: Which shipping methods do you offer?
We ship worldwide through Fedex, UPS, and DHL, and we provide tracking details after dispatch.