Oxygen analysers

Oxygen analysers by Orbitec

The first step to a perfect weld joint


Precise purging is essential for controlling weld quality, particularly when welding high-alloy, corrosion-resistant materials. Our oxygen analyser can be connected to our controllers for monitoring ID purge quality as part of the programmed weld schedule parameters (except Oxy Smart). The entered oxygen value (in ppm) in the controller is arbitrary. If not otherwise imperatively prescribed, a value of < 30 ppm is generally sufficient at the beginning of the welding process. Welding will not commence until the measured value drops below the programmed threshold. The analysers are calibrated to measure in the for welding relevant range below 30ppm up to +/- 2ppm precise.


High preciseness.

Easy operation.

  • Low annealing colouring guaranteed
  • Fast response times
  • High measuring precision
  • Easy application
  • Measuring of inert gases and gases with H2 proportions

Indispensable for top quality

Examples of the annealing colouring levels versus residual oxygen content are shown below:

7 ppm = 0,0007%

27 ppm = 0,0027 %

500 ppm = 0,05 %



OXY EVO Oxygen and Pure Pressure Analyser

OXY EVO Oxygen Analyser incl. accessories

The additional assembled purge pressure module can get used for setting and monitoring the ID purge pressure.

  • Simple menu navigation
  • For inert gases and mixed gases containing hydrogen
  • Measuring cell made of zirconium oxide (maintenance-free)
  • 3.5“colour touch panel
  • USB interface for storing documentation
  • Digital and analogue interface as well as Bluetooth for communication with our controllers and other PLC´s
  • Activation and reporting through the analyser and the digital interface
  • User adjustable alarm limits and thresholds
  • Audible key tones and alarms
  • Colour display for figures outside setpoint values
  • Multirange 90 – 260 V


Through regulation of the inside purge pressure for smaller tube diameters perfect flat and repeatable welding seams can get achieved. Documentation can be done in connection with the TIGTRONIC ORBITAL, TIGTRONIC COMPACT as well as EVO controllers. In addition, actual values can get memorized in a predetermined interval on an USB stick.


Package includes:

  • Oxygen analyser
  • Power cable
  • Hose set, 3m incl. filter and stainless-steel probe
  • Calibration certificate (oxygen analyser)
  • Plastic case
  • Assembled purge pressure module
  • Sampling hose 3m
  • 6mm T-fitting
  • Calibration certificate (purge pressure analyser)
  • Item number:
  • 1.3.5003

Technical Data:

Measuring range: 5 ppm - 21% O2
Ambient temperature: 0–45° Celsius
Measuring accuracy: +/- 0.3 mV (EMK Sensor)
Heat-up time: 3-5 min
Response time: approx. 2 seconds for changes
Dimensions (L x W x H) 180mm x 210mm x 85mm without handle
Main voltage Multirange 100-240V AC
Heating cycle load approx. 40VA
Standard load approx. 20VA
Weight 2.1kg
Input voltage 24V (via the Oxy EVO)
Measuring range calibrated 0 – 2500 Pa

Com-Kabel Oxy 2 / EVO for Communication and Documentation


for connection Oxy 2 / EVO to controllers TIGTRONIC BASIC 2-4

Item number: 1.3.5009



OXY 2 / EVO for connection to controllers TIGTRONIC ORBITAL 4, COMPACT and EVO

Item number: 1.3.5011

Spare Plastic Hose

for OXY 2 , 3 , EVO, 3m, with particle filter and stainless steel probe

  • Item number:
  • 1.3.5014

Spare Filter

  • Item number:
  • 1.3.5015


for connection Oxy EVO PPA to controllers TIGTRONIC ORBITAL 4, COMPACT and EVO

  • Art.-Nr.
  • 1.3.5035

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Orbitec GmbH
Willi-Brehm-Straße 8
D-63500 Seligenstadt

Telefon: +49 6182 / 78693-0
Fax: +49 6182 / 78693-10

E-Mail: info@orbitec-group.com
Web: www.orbitec-group.com

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