Fluke 831 Laser Shaft Alignment Tool

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  • Fluke 831 Laser Shaft Alignment Tool
  • Fluke 831 Laser Shaft Alignment Tool
  • Fluke 831 Laser Shaft Alignment Tool
  • Fluke 831 Laser Shaft Alignment Tool

Key features

  • Fast, easy, and precise alignment that adapts to your needs.
  • Rugged build and the highest-in-class IP rating.
  • Single-laser technology for the fastest, most accurate laser alignment.
  • Cloud connection enables real-time collaboration.
  • Use up to 8 measurement points to achieve precision alignment on vertical machines.

Product overview: Fluke 831 Laser Shaft Alignment Tool

Precision laser alignment made easy

The rugged Fluke 831 has an intuitive guided user interface that enables quick and complete shaft alignment without advanced training or complicated programs. And while it’s easy to use, laser alignment with the Fluke 831 is powerful enough for the skilled technician. You can cover more of your machines with all the functionality needed on the plant floor, from thermal growth to user defined tolerances and more.

Reduce costs by avoiding downtime

Misalignment causes at least half of all damage to rotating machinery, studies show. Instead of fixing the problem, teams often just treat the symptoms of misalignment and replace bearings, couplings, and seals because they think alignment takes too long.

Contrary to expectations, laser alignment can be fast and easy. So, every machine that is repaired and overhauled should be aligned – not just a few. Teams that embrace laser alignment can save thousands of dollars per year by avoiding downtime and energy waste and reducing the number of bearings and seals they have to replace.

What's in the box:

  • Fluke 831 rugged device
  • Sensor laser
  • Reflector prism
  • Chain-type mounting bracket with 150 mm support posts (2x)
  • 300 mm support post (4x)
  • Lens cleaning cloth
  • USB sensor cable
  • USB PC cable
  • USB drive
  • USB drive cable
  • Tape measure
  • Power adapter (2x)
  • Quick reference guide and safety information sheet
  • Carrying case

Specifications: Fluke 831 Laser Shaft Alignment Tool


General specifications
CPUProcessor: Exynos 9810, 2.7GHz,1.7GHz Octa-Core
Memory: 4 GB RAM, 64 GB Flash memory
DisplayTechnology: TFT
Integrated light sensor for automated adjustment of the brightness to the display according to the lighting conditions hence extending battery life.
Resolution: 1920 x 1200 Pixel
Size: 203.1 mm (8”)
ConnectivityWi-Fi: 802.11 a/b/g/n/ac/ax 2.4G+5GHz, HE80, MIMO, 1024-QAM.
Wireless: 5.0
CameraMain camera resolution: 13.0 MP, Auto Focus
Front camera resolution: 5.0 MP
Environmental protectionIP 68: dustproof, submersible 1.5 m
Temperature rangeOperation: -20°C to 50°C (-4°F to 122°F)
BatteryBattery Type: Li-Ion rechargeable battery 3.8 V / 5
3.8 V / 5050 mAh / 19.2 Wh Operating time: Up to 11 hours
Dimensions (without hand straps)Approx. 256 x 149 x 35 mm (10 5/64” x 5 55/64” x 1 3/8”)
Weight (without hand straps)Approx. 710 g (1.6 lbs)

Reflector (prism)

General specifications
Type90° roof prism
Accuracy (average)> 99%
Environmental protectionIP 67 (submersible, dustproof)
Temperature range
Operation temperature range:-20°C to 60°C (-4°F to 140°F)
Storage temperature range:-20°C to 80°C (-4°F to 176°F)
DimensionsApprox. 100 x 41 x 35 mm (4” x 1 5/8” x 1 3/8")
WeightApprox. 65 g (2.3 oz)


General specifications
Measurement principleCoaxial, reflected laser beam
LED indicators1 LED for laser beam status and battery status
1 LED for wireless communication
Power supply
BatteryLithium-Ion rechargeable battery 3.7 V / 5 Wh
Operating time10 hours (continuous use)
Charging timeUsing charger - 2.5 h for up to 90%
3.5 h for up to 100%
Using USB port – 3 h for up to 90%
4 h for up to 100%
Environmental protection
IP 65:Dustproof and water jets resistant, shockproof
Relative humidity:10% to 90% (non-condensing)
Ambient light protectionYes
Temperature range
Operation temperature range:-10°C to 50°C (14°F to 122°F)
Charging temperature range:0°C to 40°C (32°F to 104°F)
Storage temperature range:-20°C to 60°C (-4°F to 140°F)
DimensionsApprox. 105 x 69 x 55 mm
(4 9/64” x 2 23/32” x 2 11/64”)
WeightApprox. 210 g (7.4 oz) with dust cap
Measurement rangeUnlimited, dynamically extendible
Resolution1 μm (0.04 mil) and angular 10 μRad
Error (avg)< 2%
Measurement range0° to 360°
Error (avg)0.3% full scale
TypeSemiconductor laser diode
Wavelength630 - 680 nm (red, visible)
Safety classClass 2 according to IEC 60825-1:2014. The laser complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007.
Beam power< 1 mW
Beam divergence< 0.3 mrad
Safety precautionsDo not look into laser beams.
External interfaceWireless communication
Transmission distanceUp to 30 m (98 ft) direct line of sight
CE ConformityHereby, Fluke declares that the radio equipment contained in this product is in compliance with Directive 2014/53/ EU. The full text of the EU declarationis available at the following internet address: https://www.fluke.com/en-us/support/declaration-of-conformity
Country radio certificationsVisit fluke.com for more information.
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