Wall Crawlers

Automatic crawler systems for continuous ultrasonic thickness measurement on storage tank shells (walls) with data presented on a PC screen, recording and automatic evaluation according to API-653. Very fast, with outstanding strength and manoeuvrability, the systems allow a safe operation on up to 25m high tank walls either welded or riveted. Tecnitest NDT is pleased to be able to offer two CETA UT Wall Crawler; the CETA 2 which can pass over heavily riveted plates and the CETA 2013 which can cater for the majority of Ultrasonic Wall Crawler needs.

You can see the CETA in action here.

 

CETA-2 (Models 1 & 6)

CETA 2 is one of the latest generation of storage tank wall crawlers supplied by Tecnitest Ingenieros S.L.

The system is suitable for scanning walls of large storage tanks, using Ultrasonic inspection to map the thickness profile of the tank wall from the outside.

The all new CETA 2 combines all the functionality of a flaw detector together a laptop for data collection and a control box to remotely control the crawler. The system can therefore meet the requirements of API 653.

The new design, like the old CETA 2, has the ability to move over riveted plates that can be encountered in various sites around the world.

Furthermore, the design is such that it can be manoeuvred around other obstacles easily using the controller.

Key Benefits for the Operator include:

  • Reliable automated inspection of storage tank walls for corrosion degradation
  • Software functionality gives thickness readings every 1 mm throughout the inspection
  • Software performs automatic data capture and positioning
  • All results are automatically stored in a data base for recording.
  • The system has the flexibility to use either a single element dry coupled transducer or a dry coupled array with up to 6 transducers.
  • Outstanding maneuverability at speeds of up to 200mm/s
  • Independent drives on each main wheel

Transducer Options:

CETA 2-1: Operates with a single crystal wheel probe transducer having a frequency of either 5MHz or 10MHz.  The wheel probe is a virtually dry contact, there is a water bottle on the carriage to dampen the wheel, via a sponge, as it moves over the inspection area.

CETA 2-6: A multiple element wheel that carries up to 6 x 5MHz or 10MHz transducers and  is dampened in the same way as the single element wheel.

 Software Options:

The data acquisition system allows high speed movement measuring thicknesses every 1 mm with accurate control of position and measurement accuracy better than 0.1 mm.   All A-scans are stored for future analysis and a B Scan presentation is provided from the A scan data

Acquired data are recorded and properly presented on the system PC with automatic evaluation… specifically, the series of thickness values is shown in a two axis graphic format (distance to the reference position versus thickness or thickness loss) and referenced to the input nominal value of each plate and the 20%, 40% and 60% remaining thickness, allowing image scrolling, zoom.

Post scanning data processing is available with a full suite of post processing tools including adjustment and addition of gates.  Post inspection report generation in Excel, Word or PDF.

The dedicated software of the system allows as well signal filtering and data processing to erase false or deviated measurements (user defines thresholds), calculation of average values within a user defined range and, according to API-653 Specification for the inspection of oil storage tanks, the calculation of actual minimum acceptable thickness and maximum allowable tank capacity.

Please feel free to get in touch with any questions at comercial@tecnitest.com


CETA-2013 (Models 1 & 6)

CETA 2013 is the latest of the generation of wall crawlers supplied by Tecnitest Ingenieros S.L.

The system is suitable for scanning steel walls of large storage tanks, using Ultrasonic inspection to map the thickness profile of the tank wall from the outside

The all new CETA 2013 combines all the functionality of a flaw detector together with a laptop for data collection and a control box to remotely control the crawler. The system, therefore, meets the requirements of API 653.

Furthermore, the design is such that it can be manoeuvred around obstacles easily using the controller, not just a straight line scanner but the front wheel can be locked to facilitate straight line scanning.

Key Benefits for the Operator include:

  • Reliable manual inspection of storage tank walls for corrosion degradation 
  • Software functionality gives thickness readings every 1 mm throughout the inspection
  • Software performs automatic data capture and positioning
  • All results are automatically stored in a data base for recording.
  • The system has the flexibility to use either a single element dry coupled transducer or a dry coupled array with up to 6 transducers.
  •  Outstanding maneuverability at speeds of up to 200mm/s
  •  Independent drives on each main wheel

Transducer Options:

CETA 2013-1: Operates with a single crystal wheel probe transducer having a frequency of either 5MHz or 10MHz.  The wheel probe is a virtually dry contact, there is a water bottle on the carriage to dampen the wheel, via a sponge, as it moves over the inspection area.

CETA 2013-6:  A multiple element wheel that carries up to 6 x 5MHz or 10MHz transducers and  is dampened in the same way as the single element wheel.

Software Options:

The data acquisition system allows high speed movement measuring thicknesses every 1 mm with accurate control of position and measurement accuracy better than 0.1 mm.   All A-scans are stored for future analysis and a B Scan presentation is provided from the A scan data

Acquired data are recorded and properly presented on the system PC with automatic evaluation… specifically, the series of thickness values is shown in a two axis graphic format (distance to the reference position versus thickness or thickness loss) and referenced to the input nominal value of each plate and the 20%, 40% and 60% remaining thickness, allowing image scrolling, zoom.

Post scanning data processing is available with a full suite of post processing tools including adjustment and addition of gates.  Post inspection report generation in Excel, Word or PDF.

The dedicated software of the system allows as well signal filtering and data processing to erase false or deviated measurements (user defines thresholds), calculation of average values within a user defined range and, according to API-653 Specification for the inspection of oil storage tanks, the calculation of actual minimum acceptable thickness and maximum allowable tank capacity.

Please feel free to get in touch with any questions at comercial@tecnitest.com

 

CETA SERIES SOFTWARE OPTIONS

The data acquisition system measures the thicknesses every 1 mm with accurate control position and measurement accuracy better than 0.1 mm.  The real time display shows the A-Scan data with either the thickness or amplitude scans in the B-Scan window (switchable). All A-scans are stored for future analysis and a B Scan thickness and amplitude presentations provided from the A scan data
Acquired data are recorded and properly presented on the system PC with automatic evaluation… specifically, the series of thickness values is shown in a two axis graphic format (distance to the reference position versus thickness or thickness loss), B-Scan,  and referenced to the input nominal value of each plate and the 20%, 40% and 60% remaining thickness, allowing image scrolling, zoom, furthermore the B-Scan can be shown in Amplitude or thickness.
Post scanning data processing is available with a full suite of post processing tools including adjustment and addition of gates.  Post inspection report generation in Excel, Word or PDF.
The dedicated software of the system also allows signal filtering and data processing to erase false or deviated measurements (user defines thresholds), calculation of average values within a user defined range and, according to API-653 Specification for the inspection of oil storage tanks, the calculation of actual minimum acceptable thickness and maximum allowable tank capacity.

Furthermore, this software can be adapted to the customer’s requirements, but will always include API 653 average value calculations.

 

CETA SERIES GENERAL CHARACTERISTICS

Item

CETA 2013

CETA 2

Model 1

Model 6

Model 1

Model 6

Weight

kgs

Dimensions

LxWxH   cm

Weight

kgs

Dimensions

LxWxH   cm

Weight

kgs

Dimensions

LxWxH   cm

Weight

kgs

Dimensions

LxWxH   cm

Crawler

12

57x29x20

13

57x29x20

15

57x29x20

16

57x29x20

Cable

5

25metres

5

25metres

5

25metres

5

25metres

Console

11

55x45x22

11

55x45x22

11

55x45x22

11

55x45x22

Battery

11

28x23x15

11

28x23x15

11

28x23x15

11

28x23x15

TransportBox

6

60x45x42

6

60x45x42

6

60x45x42

6

60x45x42

Power Supplies Battery Pack 24 VDC 12 A Supplied  (Option: 220VAC 5Amp 50/60 Hz)
Cable Option 25 metres is the standard cable length, longer   cables can be supplied.

 

List of Clients for Wall Crawlers from Tecnitest Ingenieros SL

  • Saudi Aramco
  • Applus
  • SGS
  • Silverwing Middle East
  • Others