Leapfrogging - CDI TRAXALL 620: TRAXALL 501: TRAXALL 500: User Manual

OPERATION
Applica on: "Leapfrogging"
Se ng: 7–8
Leapfrogging is a common method of determining the vicinity of a
pipeline pig. This is done by se ng up the TRAXALL at a point along a
pipeline, no ng a passage, and then moving the system – or deploying
addi onal TRAXALL units – a predetermined distance downline where the
process is repeated.
Should an an cipated passage not occur, it is a simple ma er of walking
the system back to the last known passage loca on (see next sec on).
Establish leapfrog points as close together as possible to minimize
backtracking distance.
TRAXALL 620/501/500 USER GUIDE
1st SETUP
Page 18 of 32
LOCATING
NEXT SETUP