Mitech XXQ-3005 Portable X-Ray

Mitech XXQ-3005 Portable X-Ray Flaw Detector

Product Overview

The Mitech XXQ-3005 is a portable inflatable X-ray flaw detector developed for non-destructive testing (NDT) of internal structural defects. Using high-energy X-ray beams and film radiography, this unit allows inspectors to detect flaws such as cracks, porosity, and inclusions in welds and other metal structures. Its lightweight and compact design makes it highly adaptable for field operations, particularly in remote or elevated environments.

The XXQ-3005 provides high-resolution imaging unaffected by surface roughness or material grain, enabling detailed and accurate assessments of internal discontinuities. Its intuitive microcomputer-controlled operation, integrated safety protections, and generator-compatible power system make it a reliable tool for industrial inspection across multiple sectors.

Applications

This device is commonly used in:

• Shipbuilding and marine structures

• Aerospace and aviation maintenance

• Railway systems and component inspection

• Pressure vessel and boiler testing

• Oil, gas, and petrochemical industries

• Mechanical and structural fabrication

• Defense and military production

Working Principle

The XXQ-3005 operates by generating X-rays through a high-voltage tube powered by a silicon-controlled rectifier and pulse transformer. These X-rays penetrate the inspected object, and variations in thickness or material density influence the intensity of the transmitted rays. The differences are captured on specialized X-ray film, which, once developed, reveals internal flaws based on exposure contrast. Darker areas indicate greater exposure due to reduced material absorption.

This method allows technicians to assess flaw type, size, and location with high clarity and minimal ambiguity.

Key Features

• Microcomputer control ensures precise and reliable operation

• Compact and lightweight design for easy transport and deployment

• Over-temperature protection system automatically disables high-voltage output when overheating is detected

• Stable current output (mA) achieved through filament voltage and frequency control

• Adjustable tube voltage (kV) to accommodate different material types and testing requirements

• Anti-interference circuitry protects the system from high-voltage noise

• Comprehensive diagnostic display with fault code indicators

• Duty cycle of 1:1 ensures safe operation and equipment longevity

• Delayed high-voltage start allows safe operator distancing before activation

• Electrically isolated high-voltage and control systems for improved safety

• Compatible with unstable or generator-based power supplies for flexible field use

Environmental and Operating Conditions

• Operating temperature: -25°C to 40°C

• Relative humidity: ≤ 85%

• Safe working pressure: 0.35 – 0.50 MPa

• Do not operate below 0.35 MPa

Operation Instructions

• Turn on the device and check that the fan and display are active

• Wait 15 seconds for the system to enter standby mode

• Preheat the X-ray tube to maintain vacuum integrity

• Set the required tube voltage (kV) and exposure time

• Press the “HV” button to initiate high-voltage output and begin exposure

• After exposure ends, the system enters an automatic rest cycle

• Use the delay function (0.1 to 5 minutes) to safely exit the exposure area before activation

• To cancel delay: turn the unit off and back on, or press the “HV” button again to reset

Troubleshooting and Maintenance

Do not open or service the unit internally. Contact Mitech’s authorized service provider for maintenance.

Common issues and possible causes include:

• No display or fan: Power cable fault, broken switch, or blown 3A fuse

• Error “LA”: No current detected (mA issue)

• Error “HA”: Overcurrent detected

• Error “PU”: Overvoltage condition

• Error “PT”: Overtemperature condition

• Fuse blows or buzzer sounds: X-ray tube or controller failure, or air pressure too low

• “LA” on HV start: Poor cable connection, tube failure, or blown 20A fuse

• Electric leakage: Inadequate grounding or insulation failure