Flaw Detector Digital Inspection System for Railway – GAOTek

Description Overview  GAOTek Flaw Detector Digital Inspection System for Railway is a high-performance digital ultrasonic rail flaw detector designed for comprehensive railway system inspections. This device features an 11-inch TFT display visible under strong sunlight, lightweight trolley mobility, and multi-channel detection with advanced A-scan and B-scan capabilities. It efficiently detects flaws at the head, web, and foot of rails, covering both new and old standard processes. With smart GPS integration, real-time alerting, and full-course recording, this product ensures accurate flaw detection, data management, and reporting for high-speed, subway, and conventional rail systems.   Features Multi-channel inspection: 11 channels with 9 working in turn, 2 spare for special purposes. Wide frequency range: 2 to 4 MHz for versatile rail testing. Adjustable gain: 80 dB total, independently tunable per channel. Dynamic range: 16 dB minimum with min rejection, 2 to 6 dB with max rejection. Dual display modes: A-scan and B-scan for detailed flaw visualization. Tunable gate: Adjustable start, length, and threshold for precise detection. Alarm system: Light and sound alerts for beam path, head, and defect spots. High-sensitivity detection: Ensures flaws are detected with ≥40 dB surplus. Specialized probes: 0°, 37°, and 70° probes for comprehensive rail coverage. Portable power: DC 12V lithium battery with ≥8 hours of operation. Complete system: Includes trolley, instrument, battery, and charger for field use.   Technical Specifications Channel & Working Mode 11 channels, 9 work in turn by TR, 2 spare for special purpose Frequency Range 2 MHz to 4 MHz Gain 80 dB total, independently tunable per channel Dynamic Range ≥16 dB with min rejection, 2 to 6 dB with max rejection PRF 400 Hz per channel Displaying Mode A-scan or B-scan Display Reachable Options for Auto, 43 kg/m, 50 kg/m, 60 kg/m, 75 kg/m Horizontal Linearity ≤1% Vertical Linearity ≤3% Gate Tunable for start, length, and threshold Alarm Mode Light or sound, indicating beam path, head-spot, and defect-spot Gain Curve Adjustable Sensitivity Surplus Normal probe: ≥40 dB at 4.33 in depth of WGT-3 block; 37° & 70° angle probes: ≥40 dB at 1.54 in lateral hole Dynamic Detecting Capability Probes at 0°, 37°, 70°; detects all artificial flaws and signals alarms Power Supply DC 12V (Li Battery) Battery Life ≥8 hours Display Ambient Temperature -4 °F to 122 °F (-20 °C to 50 °C) Weight (Product Only) 59.5 lb (27 kg) Tank Volume ≥17 L Size / Dimension 11 in x 8 in x 2.3 in (approx. 280 mm x 203 mm x 58 mm)