GCT-8C Rail Ultrasonic Flaw Detector
GCT-8C Rail Ultrasonic Flaw Detector is a brand new digital barrow-style ultrasonic equipment of flaw detection.
It is used to detect all kinds of flaws in rail materials ranged from 43kg/m-75kg/m. It is a new type of practical, dependable instrument of rail flaw detection.
This machine fits in with the Railway Field Standard of People’s Republic of China TB/T 2340—2000 Technological Terms and Conditions of Multicenter A Scope Rail Ultrasonic Flaw Detection Instrument.
This machine mainly includes one main machine, probe and water tank. The above three parts are installed on the handcart.
| Detecting Channels | 9 channels |
| Working Frequency | 2MHz |
| Repetition rate | 400 Hz (each channel) |
| Detection range | 4.0 – 200±4mm for 43kg/m and 50kg/m rail, 0-250±5mm for 60kg/m and 75kg/m rail |
| Gain range | 0 – 80 dB |
| Sensitivity Leavings | TB/T 2340—2000 standard |
| Dynamic range | ≥30dB (restraining small), 2~6dB (restraining big) |
| Horizontal linear error | ≤2% |
| Vertical linear error | ≤5% |
| Attenuation error | less than 1dB per 20dB |
| Alarm Threshold level | >50% (A-I channels reflex alarm),
<30% (0 degree or double 45 degrees channel penetration alarm) |
| Alarm frequency | 12.70 degree channel: 250Hz(20 degree Angle oblique ), 750Hz(direct);
37 degree channel:500Hz; 0 degree channel: 1000Hz. Probe lapse alarm:2000Hz, over rate alarm 2000Hz |
| Number of files that can be saved | automatic storage file can save 60 days. Manual storage file can be 2000 pieces |
| Time Dynamic pulse time | ≥60 minutes |
| Operation voltage | 18-26V |
| Power consumption | ≤8W. Machine can work about 10 hours continually |
| Operation temperature | -30 to 50°C |
| Tank size | 20L |
| Weight | 25kg (without couplant) |
