Railway Ultrasonic Flaw Detector AFD900 model

Introduction

AFD900 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 Instrument.

This machine mainly include one main machine, probe and water  tank. The above three parts are installed on the handcart. 

Technical Specification  

1.  Detecting Channels : 9 channels.

2.  Working Frequency : 2MHz.

3.  Repetition rate: 400 Hz (each channel).

4.  Detection range: 0 ~ 200±4mmfor43kg/m and50kg/m rail,  

  0～250±5mmfor60kg/m and75kg/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 big)

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 degre

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

2000Hz.

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 continually.

17.  Operation temperature:  －30 to50℃

18.  Tank size:20L

19. Weight:25kg(without couplant)