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 instrument 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
This machine mainly include one main machine, probe and water tank.
The above three parts are installed on the handcart.
Characteristics of machine:
According 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
Two detecting modes: A mode and B mode.
9 detecting channels: 1 channel 0 degree; 2 channels 37 degree
(forward 37degree, back 37
degree); 6 channels 70 degree (forward 70 degree, back 70 degree,
forward inside 70 degree,
forward outside 70degree, back inside 70 degree , back outside 70
Automatic record detection data(route, rate, time, warm,
sensitivity), can record about
continue 60 days detection data. Also can save the data by hand.
Software can help you display and analyse the detection data.
Wireless port can finish GPS. It can finish remote control and
transmission through Internet.
Big 8.4-inch color display can show more than 2.2 meters B scan
photo. High brightness screen
can show the data under sunshine. Each channel A type pulse and B
type image can be
separated with different color.
One screen can show both A pulse and B scan image at the same time.
The show include A
pulse area and B scan image area. They do not interfere with each
other when working.
This machine include 40 pieces touch key which can help you operate
The machine have automatic probe detection function. If there is
any error among detection, the
alarm give any signal in 3 meters. Also can test whether the probe
couple the rail. With the
software can justify whether the detector set up the normal
Whole machine can work normally under temperature ranged from －30
Water proof and wind proof.
1. Detecting Channels : 9 channels.
2. Working Frequency : 2MHz.
3. Repetition rate: 400 Hz (each channel).
4. Detection range: 0 ~ 200±4mm for 43kg/m and 50kg/m rail,
0～250±5mm for 60kg/m and 75kg/m rail.
5. Gain range: 0 ~ 80 dB.
6. Sensitivity Leavings: TB/T 2340---2000 standard.
7. Dynamic range: ≥30dB (restraining small), 2~6dB (restraining
8. Horizontal linear error: ≤2%
9. Vertical linear error: ≤5%
10. Attenuation error: less than 1dB per 20dB
11. Alarm Threshold level: >50% (A-I channels reflex alarm ),
<30% (0 degree or double 45 degree
channel penetration alarm).
12. Alarm frequency: 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
13. Number of files that can be saved: automatic storage file can
save 60 days. Manual storage file
can be 2000 pieces.
14. Time Dynamic pulse time: ≥60 minutes
15. Operation voltage: 18-26V
16. Power consumption: ≤8W. Machine can work about 10 hours
17. Operation temperature: －30 to 50℃
18. Tank size: 20L
19. Weight: 25kg(without couplant)
One group battery
Double Transmitting and Receiving Transducer
U Disk (include software)