L-GAGE LH Series


High speed, high precision, non-contact laser measurement sensor which provides accurate and stable displacement or thickness measurement on wood, metal, rubber, ceramic, and plastic parts.

  • Extremely accurate, robust and self-contained laser displacement sensor using a 1024 pixel CMOS linear imager
  • Precise narrow laser spot for easy alignment to the target
  • Reliable and accurate measurement results on real world targets, such as machined metal, wood, ceramic, paper and painted targets
  • Target displacement or target thickness measurement with high resolution 4-20 mA or RS-485 serial communication outputs
  • Non-contact measurement for use on moving processes, hot parts, machined parts, and soft or sticky parts
  • Two sensors self-synchronize for thickness measurements and thickness calculation within the sensors; no external controller required

Product Specifications

Supply Voltage and Current18 to 30V dc (10% maximum ripple); 250 mA max @24V dc (exclusive of load)
Supply Protection CircuitryProtected against reverse polarity and transient over voltages
Delay at Power-up1.25 seconds
Sensing Beam670 nm (1mW) visible red IEC and CDRH Class 2 laser
Measuring FrequencyDynamically adjusted from 300 to 4000 Hz depending on target conditions, or locked via LH Series Configurator software.
Ambient Light≤3000 Lux
Output Configuration and RatingAnalog current output:4 to 20 mA (current sourcing)

Analog output rating: 1 kΩ max @ 24V dc, max load resistance = [(Vcc - 4.5)/0.02]Ω
Output Response TimeUser adjustable output filtering via LH Series Configurator

Temperature Effect0.01% of full scale range/°C
AdjustmentsNone on sensor; Configuration through LH Series Configurator

Application NotesAllow 30-minute warm-up

Cover plate: Aluminum

Lens: Glass

Cable: PVC and nickel-plated brass
Environmental RatingIP67
Connections150 mm (6 in.) M12 8-pin Euro-style pigtail quick-disconnect.

Mating QD cables are purchased separately
Serial Communication InterfaceRS-485, optically isolated, up to 230 KBaud
Serial Communication ProtocolLH Network
Operating ConditionsOperating Temperature: –10° to +45° C (+14° to 113° F)

Storage Temperature: -10° to 80° C (+14° to 176° F)

Maximum relative humidity: 85% at +45° C, non-condensing
Vibration and Mechanical ShockVibration: IEC60947-5-2, 10-55 Hz, 0.5 mm P-P, 3 axis

Shock: IEC60947-5-2, 30G, 11 milliseconds, half sine wave, 3 axis

Maximum mounting bolt tightening torque: 1 Nm
Factory Default SettingsMeasurement Mode: Displacement

Sensor Address: Unset (Address 0)

Baud Rate: 115200

Analog Output: 4-20 mA, positive slope, full scale range


Product Instruction Manual

Document Name Part Number File Size Download
1. LH Series Sensor Instruction Manual 152154 Download
2. LH Series Sensor Configurator Software User Manual
(Online Only)
150307 Download

Data Sheets

Document Name Part Number File Size Download
1. INTMOD485-LH Protocol Converter 157578 Download
2. INTUSB485-LH Serial Adapter 151217 Download

Success Stories

Document Name Part Number File Size Download
1. Laser Sensors Improve Service Forecasting by Measuring Elevator Belt Wear Patterns B_4158404 Download
2. Constant, Consistent Height Measurement for Cereal Dough Using Banner Sensors B_3136454 Download

Chinese - Simplified

Product Brochures

Document Name Part Number File Size Download
1. LH Series Laser Sensor Flyer - Chinese
C2120401 Download


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