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Linear Gage LGK: Slim, Heavy-Duty, Optical Sensor

The compact LGK linear gage is a robust displacement probe designed for measuring displacement or thickness in a wide range of applications such as automation environments, clustered probing and harsh shop floor environments. 

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Features & Benefits

With an IP66 rating for excellent resistance to coolant, oil and dust, the Mitutoyo LGK gage is ideal for integration into automation applications and harsh environments. Its compact size allows for installation into areas where space is limited. 

  • Photoelectric encoder gives the sensor high precision across the entire measuring range as well as higher resistance to electrical interference
  • Compact model offers the vibration/shock resistance of the proven LGF series at 1/5 the size
  • Excellent shock resistance: 100g/11ms (IEC 60068-2-27)
  • Linear ball bearing in spindle unit provides improved durability for at least 15 million cycles
  • Resolution of each model can be selected from 0.1μm (5 μin), 0.5μm (20 μin), or 1μm (50 μin)
  • Range: 10mm (.4”)
  • TTL output for ease of communication
Technical Data
IP Rating: IP66
Operating Humidity Condition Range: RH20 to 80% (no condensation)
Operating Temperature Range: 0 to 40˚C
Storage Humidity Range: RH 20 to 80% (no condensation)
Storage Temperature Range: -10 to 60˚C
Bearing Type: Linear ball bearing
Connection: Plug: RS12BPE-6PH, Compatible receptacle: RM12BRD-6S (Hirose)
Contact Point: 901312
Stem Diameter: 8mm
Mass: 175g
Max Measuring Force Upward: 0.7N
Max Measuring Force Horizontal: 0.75N
Max Measuring Force Downward: 0.8N
Measuring Range: 0.4" / 10mm
Position Detection Method: Photoelectric linear encoder
Shock Resistance: 100G
Product List
Order No.: Product Image: Accuracy: Max Response Speed: Output: Signal Output Pitch: Resolution: Optional Accessories:
542-156 - ±(1.5+L/50)µm 1500mm/s TTL - 90˚ phase difference, differential square wave (RS-422A equivalent), minimum edge intervals: 400ns 4µm 0.00005" / 0.001mm -
542-157 - ±(1.5+L/50)µm 1500mm/s TTL - 90˚ phase difference, differential square wave (RS-422A equivalent), minimum edge intervals: 200ns 2µm 0.00002" / 0.0005mm -
542-158 - ±(0.8+L/50)µm 400mm/s TTL - 90˚ phase difference, differential square wave (RS-422A equivalent), minimum edge intervals: 200ns 0.4µm 0.000005" / 0.0001mm -