Shaft alignment

Intrinsically safe products are used in potentially explosive environments. To be classified as an Ex/ATEX product thorough tests must be completed.

5 Programs
Easy-Laser® measurement and alignment systems comes with a wide range of application programs (apps). What you can measure is always a combination of apps, lasers, detectors and brackets. This system has 5 apps included. Learn more on Features tab.

20m/66' distance
The different Easy-Laser® laser transmitters are designed for optimum measurement result. Therefore they have different maximum measurement range. The range is also depending on the detector used.
This system (or transmitter) will allow you to measure at a range of 20m/66'.

The IP (Ingress Protection) rating system determines the level of protection against solid objects and liquids for a device. The larger the value of each digit, the greater the protection. IP67 - Ingress of solid objects: Totally protected against dust ingress. Ingress of liquids: Protected against short periods of immersion in water. 30 minutes, 1 m.

The IP (Ingress Protection) rating system determines the level of protection against solid objects and liquids for a device. The larger the value of each digit, the greater the protection. IP66 - Ingress of solid objects: Totally protected against dust ingress. Ingress of liquids: Protected against high pressure water jets from any direction. Limited ingress permitted. 3 minutes, 100 l/min., 100 kPa water pressure from 3 m distance.

1 axis PSD
The PSD (Position Sensing Device) which is built-in to the detector unit can determine the position in either 1 or 2 dimensions (axes). Call it X/Y, or Horizontal/Vertical if you want. Depending on application, a 2 axis systems will obviously give you more alignment possibilities. This system comes with a 1 axis PSD.

The XT550 alignment system has all the features of the XT660 with one major difference – it’s intrinsically safe and can be used in potentially hazardous areas. With XT550 you can carry out the following:

  • Align the machine
  • Check base twist
  • Check bearing play
  • Check soft foot
  • Document and share the results

Intrinsically safe for potentially explosive areas

The Ex-approved XT550 system is developed for hazardous areas and is easily operated through our XT Alignment app. It is an advanced measurement system for alignment of horizontal and vertical/flange mounted rotating machinery.

It comes with Easy-Laser’s dot laser technology, allowing you to measure large machinery and long spans. The measuring units are approved in accordance with the latest ATEX directive*, and are rated both IP66 and IP67 water and dust proof.


System XT550 comes in two configurations; with or without the ATEX approved ecom Tab-Ex® display unit. The XT Alignment app runs on most iOS and Android units, as well as our own display unit XT11. However, those are not allowed in potentially explosive areas, but makes for a perfect complement for use in other places.


Note. For use in Ex-classed areas, the mobile device you’re using must be approved for these areas. Always check for approval labels before entering potentially explosive areas. The XT11 is not Ex/ATEX approved.

*The XT50 measuring units are ATEX approved which means means they comply with the Essential Health and Safety Requirements relating to the design of products intended for use in potentially explosive atmospheres. Download certificate.

  • Ex/ATEX approved
  • Continuous sweep
  • Multipoint
  • Display data on multiple platforms
  • Free app – no license needed
  • Unique documentation possibilities
system parts  

Display unit ecom Tab-Ex®

Based on Samsung GALAXY Tab Active, ecom´s hazardous area tablet is certified for use in Zone 1/ 21 & DIV 1 hazardous areas.


  • Glove-enabled touch-screen
  • Large 8" display
  • ATEX approved
image description
  1. Rubber coated housing
  2. Large and clear 8” TFT display, glove-enabled

Measuring units XT50-M / XT50-S

The XT50 measuring units are ATEX approved for use potentially explosive environments. The units utilize dot-type laser and 1-axis square PSD surfaces. A state-of-the-art OLED display shows the angle of the unit, making it easier to position it on the shaft. IP66 and 67, dust- water- and shockproof. Heavy-duty battery for very long operating times. Built-in wireless technology.


  • Built-in wireless technology. Integrated rechargeable battery. 
  • TruePSD technology with unlimited resolution for greatest accuracy.
  • Dual laser beams and PSDs.
  • Sturdy aluminium body. IP66/67 design.
  • ATEX approved.
  • OLED display shows the angle of the unit.
  • Slideable target.
  • 20 hours operating time.
image description
  1. Laser angle adjustment
  2. Charger connector
  3. Locking knob
  4. Slidable target/dust cover
  5. OLED display: battery status/unit angle
  6. Extendable stainless steel rods
  7. Chain tightening knob
  8. PSD aperture
  9. Laser aperture


  • 1 Measuring unit XT50-M
  • 1 Measuring unit XT50-S
  • 2 Shaft brackets with chains and rods
  • 4 Rods 60 mm [2.36"]
  • 2 Rods 120 mm [4.72"]
  • 2 Extension chains 900 mm [35.4"]
  • 1 Measuring tape 3 m [9.8']
  • 1 Rod tool
  • 1 Charger (100–240 V AC)
  • 1 DC split cable for charging
  • 1 Quick reference manual
  • 1 Cleaning cloth for optics
  • 1 USB memory with manuals
  • 1 Carrying case Ex/ATEX
  • 1 Display unit ecom Tab-Ex®
technical data  

Technical Data

Display Unit

ecom Tab-Ex®
Type of display/size
TFT 8" colour screen
Operating temperature
-20–50 °C
BT wireless LE4.0 Wireless technology, WiFi
3 Mp with flash (rear), 1.3 Mp (front)
WxHxD: 162x256x33 mm [6.4x10.1x1.3"]
Weight (without batteries)
1250 g [2.75 lbs]
Operating time
Up to 11 h continuously
Operating system
Android™ 5.1.1
Ex classification
II 2 GD Ex db ia op is IIC T5 Gb, -20°C ≤ Ta ≤ +50°C
Ex certificate number
Sira 15 ATEX 1205X, IECEx SIR 15.0075X

Measuring Units

XT50-M / XT50-S
BT wireless technology
Type of detector
1 axis TruePSD 20x20 mm [0.79x0.79"]
0.001 mm [0.05 mils]
Measuring errors
Measurement range
Up to 20 m [66 feet]
Type of laser
Diode laser
Laser wavelength
635–670 nm
Laser class
Safety class 2
Laser output
<1 mW
Electronic inclinometer
0.1° resolution
Environmental protection
IP class 66 and 67
Operating temperature
-10–50 °C
Storage temperature
-20–50 °C
Relative humidity
Housing material
Anodized aluminium + PC/ABS + TPE
WxHxD: 76x76.5x50.9 mm [3.0x3.0x2.0"]
316 g [11.1 oz]
OLED display
128x64 pixels
Operating time
Up to 20 h continuously
Ex classification
II 2 G Ex ib op is IIC T4 Gb, -10°C ≤ Ta ≤ +50°C
Ex certificate number
Presafe 17 ATEX 10552X, IECEx PRE 17.0049X


You can find product brochures and manuals in pdf format here. They contain further information about our products. For software, see Lifecycle support > Software download.


XT Series Manual


Product Catalogue
XT550 brochure
Product Overview


  • info@e-laser.ru
  • Россия, 196247, Санкт-Петербург
    Бизнес-центр «SetlCenter»
    Ленинский проспект 153, офис 736


Измерительные системы Easy-Laser чрезвычайно гибкие. Используя умные аксессуары, вы можете адаптировать системы для собственных нужд, сейчас и в будущем по мере изменения требований измерения. Это является экономически эффективным.