Equipment

• Two channel transmitters and receivers for controlling direction of wave propagation
• 120 V or 240 V AC, 50/60 Hz, power or internal battery operated; The internal battery supplies more than 2 days of typical use; Battery is charged with external charger.
• Wide frequency range operation: 5 kHz to 250 kHz
• The system has band pass filter at 16, 32, 45, 64, 90, 128, 180, and 250 kHz
• Time-corrected gain (TCG) function for increasing signal-to-noise ratio
• Quick multiple reflection
• Two operation modes: pulse-echo or pitch-catch
• Light weight

MsS Probe

• Multiple frequency probe: 5 to 16 kHz, 32, 45, 64, 90, 128, 180, and 250 kHz
• The MsS probe can be installed with more than 25-mm clearance around the pipe
• The MsS probe can be installed without clearance if the pipe is accessible more than 60 percent around the circumference. The heat tracer line does not need to be lifted.
• Probe is very light (less than 0.8 kg for 24-inch pipe testing probe)

Software

• Functions: sorting out false calls due to multiple reflections
• Multi-frequency data analysis for finding different size of defects
• Spectrogram display for showing frequency response of indication
• Automatic finding of indications with setting of threshold level
• TCG, DAC, RF, and spectrogram data plot
• Calibration function of velocity, attenuation, percent reflection

Capability

• 100 % of the pipe is inspected within the inspection range of pipe (volumetric inspection)
• Ability to detect corrosion wall loss and cracks in aboveground, buried, and insulated pipe
• Any pipe size can be tested (usually 0.25- to 80-inch outer diameter)
• Liquid and gas does not affect testing
• Inspection range in straight above ground pipeline is typically 50 meters on either side of the MsS probes and can be up to 200 meters in ideal conditions
• Sensitivity can be 1% cross sectional loss for a pipe in good condition (but the threshold can be set at 5 % for buried pipeline or at long distance)
• The generated signal with MsS probe is 56 dB (600 times) higher than the coherent noise of unwanted modes
• MsS probes can be attached to a pipe with dry coupling, epoxy bonding or ultrasonic shear couplant depending on the pipe condition
• MsS probes are inexpensive and can be permanently installed on a pipeline at difficult-to-access locations for long-term pipe monitoring
• A continuous probe covers the entire circumference of a pipe
  - Excellent direction control
  - Zero near-field length
• MsS probe has short dead zone length
  -1ft with32kHzprobe
  - 0.8 ft with 64 kHz probe
  - 5 inch with 128 kHz probe
• A pipe of up to 300 C surface temperature can be inspected and monitored without taking it out of service if the MsS probe is bonded at a temperature less than 125 C
• User-friendly analysis software reduces false calls and helps make an easily understood inspection report
• Once the probe is installed, the inspection or monitoring can be done. Typically, 20 to 30 locations per day can be inspected. This is cost effective and best for condition-based monitoring.
• High-sensitivity pipe inspection with high-frequency (50 - 250 kHz) probe
• Long-range pipe inspection with low-frequency (5 - 50 kHz) probe.