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FELL-21 Electro-Scanner
One-step Sewer Leak Detection & Location for LATERALS
Fast
   Low Cost
      Easy to Use
         Immediate Results

Field Operation:
  • Sonde and plug are pushed into the pipe
  • Surface electrode is placed in the ground at a fixed location
  • Pipe is filled with water
  • Sonde is pulled out of the pipe at a speed of 30 ft/minute
  • Electic current is measured and displayed in real time on a hand held computer
Interpretation:
  • Trace amplitude related to size of defect.
  • Length and location of trace anomaly is that of defect.
  • Nature of anomaly related to character of defect (see examples)
  • Computer program used to summarize defects (see example)

Electro-Scan Output
- Removes the
guesswork from
SSES for  I/I




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Metrotech Corporation, 3251 Olcott St, Santa Clara  CA 95054. Ph: (408) 734-1400