GE Kelman Transport X2 Dissolved Gas Analysis DGA

Selling used GE Kelman Transport X2 Dissolved Gas Analysis DGA (Kelman Transport X2 Firmware 2.10.01, Multigas software), tested and working good condition, come with 6-month warranty.

Condition: Used

Dissolved Gas Analysis (DGA) and moisture measurement of insulating fluids are recognized as the most important tests for condition assessment of fluid-insulated transformers. Every year asset owners deploy field crews to take thousands of fluid samples from transformers as part of periodic health checks and for immediate operational decisions. These samples are sent to offsite laboratories for analysis. Kelman™ Transport X² is a portable ‘lab in a box’ delivering detailed analysis with dramatically reduced turnaround times. In critical situations, the ability to perform DGA in less than 30 minutes on the spot, empowers asset owners to determine a transformer’s condition onsite and thereby allow operational decisions to be made at the earliest opportunity.

GE was the first to deliver consumable-free DGA products to the market and the Transport X² represents the next generation of its portable system. GE’s class leading Photo-acoustic spectroscopy (PAS) gas measurement technology, now in its fourth generation, provides laboratory-challenging levels of precision in a calibration free, easy-to-use and hand-carriable product. Benefiting from over 40 years of global DGA experience, the Transport X² encapsulates intuitive advancements to bring improved performance, innovative new features, enhanced user experience and greater robustness.

Fully Portable

  • Standalone DGA field instrument capable of measuring seven diagnostic gases and moisture
  • Calibration and consumable gas free design for autonomous field operation
  • Robust design with IP67 rating when closed
  • Unit weighs less than 9 kg (20 lb)

Intuitive Operation

  • Graphical touchscreen user interface
  • Intuitive on-screen step-by-step instructions
  • Seamless integration with Perception software
  • Plug and Play download of measurements and log files using standard USB 2.0 memory stick

Built-in Diagnostics

  • Built-in internationally recognized DGA diagnostic software tools
  • Color graphical display to facilitate visualization
  • Storage capacity for >20,000 measurements
  • Further diagnostic capabilities through data upload to the Perception software suite


Key Benefits

  • Measurement of seven diagnostic gases and moisture content in the oil
  • Fast diagnostics in less than 30 minutes
  • Intuitive touchscreen interface with step-by-step instructions and Plug and Play connectivity
  • Compatible with mineral insulating oils and newer ester-based fluids (natural and synthetic)
  • Enables operators to effectively respond to alarms, trip events and supports on-site field decision making
  • Ideal companion to GE’s range of single gas online DGA monitors for adding transformer diagnostics


As the average age of generation, transmission and distribution transformers increases, the risk of rapid deterioration and even catastrophic failures also increases. Transformer changes can occur in between rounds of periodic laboratory DGA analysis and this risk exposure can go unnoticed. The Transport X² offers electric utility and industrial customers accurate, economical and portable DGA and diagnostics in an easy-to-use handy instrument that is applicable for:

  • Mission critical industrial transformers
  • Distribution transformers
  • Buchholz relay gas
  • Tap changer tanks
  • Instrument transformers
  • Oil filled circuit breakers

Application Example

The Kelman Transport X² remains your ideal partner for use in conjunction with GE's range of single gas online DGA monitors. These units (such as Hydran™ 201Ti and Hydran M2-X) monitor the transformer and raise an alarm when an abnormal level of fault gas is reached or when the rate of change of this gas level increases rapidly so that you can take action and protect your transformer early in the process.

Such events often require further investigation before a valid conclusion can be reached. Traditional methods require an oil sample to be sent to a laboratory for analysis. This can be a lengthy process before a diagnosis and related decision can be made. However, with the Transport X², the sample can be taken and analyzed onsite, giving comprehensive diagnostic information in less than 30 minutes. The Transport X² data can then be uploaded and visualized in GE's powerful Perception software alongside the readings from the online monitor.



LCD Size

6.5 inch color touchscreen
LCD Type Resistive touchscreen
Screen Resolution 640 x 480
Computer interface USB
Measurement Download USB 2.0 Memory Stick
Direct Perception Sync
Logfile Retrieval USB 2.0 Memory Stick and Perception
Output CSV file format and Screen
Hardcopy 2 inch thermal printer
Onboard Diagnostics Duval’s triangle, Rogers’ ratio, Key Gas & Japanese ETRA
Language support English, Spanish, Portuguese, French, German, Polish, Russian


Hydrogen (H2) 5 – 5,000 ppm
Carbon Monoxide (CO) 2 – 50,000 ppm
Carbon Dioxide (CO2) 40 – 50,000 ppm
Methane (CH4) 2 - 50,000 ppm
Acetylene (C2H2) 0.5 - 50,000 ppm
Ethane (C2H6) 2 - 50,000 ppm
Ethylene (C2H4) 2 - 50,000 ppm
Measurement Accuracy ±5 % or ±LDL (whichever is greater)
Moisture (H2O) 0-100 % relative humidity
Moisture in Oil Accuracy ±3ppm or ±3.5 %RH
Operating Ambient Temperature 5 – 50 °C (+41 to +122 °F)
Operating Altitude Maximum 2,000m
Operating Pressure 760 - 1040 millibar
Operating Humidity 10 - 95 % RH non-condensing
Power Supply 115 – 230 V AC 50/60 Hz; 40 W
Enclosure IP67 (when closed)
IP20 (when operating)
Oil Sample Volume 50 ml (Oil)
Gas Sample Volume 5 ml (Buchholz Gas)
Dimensions 429 x 328 x 236 mm (16.9 x 12.9 x 9.3 in)
Weight 9 kg (20 lb)

Package includes:

  • 1x GE Kelman Transport X2 unit
  • 1x ground glass syringe
  • 1x 50-ml syringe
  • 1x three-way plastic stopcock
  • 1x bottle lid assembly
  • 1x magnet retriever
  • 1x quick connection valve
  • 2x teflon coated stir bars
  • 8x replacement Teflon filters
  • 3x sample bottles
  • 1x power cable