OKOndt UDS2-77 SC Trolley Rail Flaw Detector

OKOndt UDS2-77 SC Trolley Rail Flaw Detector

Overview

The UDS2-77 SC Trolley ultrasonic rail flaw detector is a manually propelled cart designed for inspection of streetcar lines with rails of standard or "groove" type profile. The UDS2-77 SC Trolley modular structure includes a frame on rollers, a central electronic unit and multiplexer units. The rail flaw detector allows you to test the entire section of the rail, with the exception of the sole flanges and the groove limiter, using the pulse-echo, echo-shadow and echo-image methods. 100% high quality testing of the rail is provided at a scanning speed of up to 3 mph (5 km/h) which corresponds to the average walking speed of a person. The design of the UDS2-77 SC Trolley’s alignment and adjustment systems enables testing of rails differing in geometry and dimensions – with a single flaw detector.

Key Features

  • Scanning the rail in one pass in one direction
  • Detection of artificial reflectors in the form of flat-bottom holes and cylindrical holes according to EN 16729-1
  • View test results in A-scan, multi-A-scan, B-scan for all channels
  • Real-time display of test results in B-scan and also saved to the memory to be viewed later or to transfer to a USB for later viewing on a PC.
  • Data recording and saving (operator’s name, line, direction, track number, left/right position, initial track coordinate, date, time, final track coordinate)
  • Availability of measuring gates in A-scan & B-scan modes
  • Post-viewing of test results on the flaw detector with the ability to estimate defect size as well as to tag indications (e.g. “Bridge”, “Crossing”, “Bolt hole”, etc.).
  • If defects are present, sound, light, visual indication of the testing sensitivity values, defect coordinates, current track coordinate - displayed on the screen built into the flaw detector.

Trolley Design

  1. Modular design of the trolley consists of a support frame with adaptive rollers; electronic unit for control and visualization; multichannel unit; battery pack; couplant (water) tank; probe units; suspension mechanism of the probe units to place them into operation/transportation position; encoder.
  2. Position of electronic unit for control and visualization can be adjusted along three axes.
  3. Probe unit (slide or wheel) is transversely positioned in relation to a rail with the help of a dedicated control device.
  4. The probe unit (slide or wheel) is positioned cross-wise to the rail with the aid of a dedicated control device.
  5. Probe unit can be centered using adaptive rollers.
  6. Suspension mechanism of the slide probe unit ensures a stable acoustic contact.
  7. The flaw detector is resistant to moisture, dust and corrosion. The protection class is not less than IP54 according to EN60529.
  8. The trolley is made of lightweight but rigid composite materials, with a total weight of not more than 45 lb. (20.5 kg) (w/o water & GPS/ Wi-Fi module). The total weight of the flaw detector with the couplant and the GPS/Wi-Fi module is not more than 58.5 lb. (26.5 kg).

Reports

The user has access to 3 types of quick reports generated from the device menu, plus four analytical reports that are generated on a remote workstation using OKO's "Rail Inspector" software. Each report includes:

  • track and global coordinate of the defect (saved automatically)
  • defect number according to the catalog (entered manually by the operator)
  • the length of the defect (saved automatically during B-scan measurement or entered manually by the operator during visual inspection)
  • features of the rail (filled in manually by the operator)
  • The type of rail according to the marking (for example: S60, S49 or others; entered manually by the operator)
  • Type of rails according to manufacturing technology (U – hardened; S – raw; C – cold drawn; manually entered by the operator or selected from the list)
  • comments (filled in manually by the operator)

Technical Specifications

UDS2-77 SC Trolley Specifications

  1. UT techniques: pulse echo, (echo image) and echo shadow.

  2. Number of ultrasonic channels for 100% scanning: 11.

  3. Nominal test frequency: 1 to 6 MHz.

  4. Distance between probe pulse sendings: 2,5 mm at motion speed up to 5 km/h.

  5. Variation range of receiving path gain: 0 to 100 dB, with a step of 1 dB.

  6. Memory capacity for data storage: not less than 16 Gb.

  7. Weight of the flaw detector without couplant: up to 20,5 kg.

  8. The flaw detector is powered by an independent power source (battery) with the rated voltage 12V and rated capacity of no less than 18 А·h.

  9. Time of operating mode setup: up to 15 sec.

  10. Time of continuous operation of the flaw detector with a fully-charged battery: no less than 8 hours.

  11. Protection rating: IP 64.

  12. The following alarms are generated during flaw detection: light – common via all test channels; sound – common for a group of channels; visual, on the screen – separate for every channel.

  13. GPS system is used to determine defect location coordinates on the track.

Kit Includes

UDS2-77 SC Trolley Kit Includes

  • Trolley
  • Guide wheels for standard rail profile (rail with groove is standard)
  • Couplant supply system
  • External loudspeaker
  • Electronic unit
  • Multiplexer unit (MUX with BNC connectors)
  • Battery unit
  • Cable set
    • Power switching unit (PSU) – 1 set
    • Connection cable (EU-2MUX) – 1 pc.
    • Connection cable (Battery unit – Power switch unit) – 1 pc.
    • Connection cable (Probe-MUX, lemo00-2BNC) – 1 pc.
    • Connection cable (Probe-MUX, 2 lemo00-2BNC) – 1 pc.
    • LAN debugging cable – 1 pc.
  • Probe sets 
  • Rail specific gain calibration block
  • Manual probes
  • Charger
  • USB flash card with set of technical and operational documentation
  • Tool kit
  • Carrying and storage case 
  • Screen protector & sun hood
  • spare parts & accessories
  • Operating documentation
    • Operating Manual – 1 pc.
    • Passport – 1 pc.
    • Passport “Rail specific gain calibration block” – 1 pc.
    • Operating manual for software “Rail Inspector” – 1 pc.
    • Maintenance and repair manual – 1 pc.
    • Operating Manual for charger – 1 pc.
Manual Probes & Probe Sets

Manual Probes
  • Probe TSD4-20 (4MHz, 0°, dual element) – 1 pc.
  • Probe TAB2-40-14x14 (2MHz, 45°, single element) – 1 pc.
  • Probe TAB2-55-14x14 (2MHz, 45°, single element) – 1 pc.
  • Probe TAB2-70-14x14 (2MHz, 70°, single element) – 1 pc.

 

Probe Sets
Probe Unit 1
  • 4.0 MHz straight-beam (0°) dual element probe – 1 pc.
  • 2.0 MHz angle-beam (70°) single element probe – 2 pc. (d=24mm).
Probe Unit 2
  • 2.0 MHz angle-beam (45°) single element probe (two probes in one housing) – 1 pc.
  • 2.0 MHz angle-beam (55°) single element probe (two probes in one housing) – 1 pc.
  • Probes with an input angle of 55 degrees are not used when inspecting rails with grooves.
Probe Unit 3
  • 2.0 MHz angle-beam (70°) single element probe – 2 pc.
Probe Unit 4
  • 2.0 MHz angle-beam (70°) single element probe – 2 pc.
  • Not used when inspecting rails with grooves.

Product Literature

Description Part # Saved Price Select Option Add to
OKOndt UDS2-77 SC Trolley Ultrasonic Single Rail Flaw Detector for Tram Rails UT-OKO-UDS2-77-SC-Trolley
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