C550c Operation Manual
7 Surveys
232
Clock references
Many observations require a clock reference to locate the defect
’s position on the pipe wall. For
example, you can
observe a circumferential crack extending from 2 o’clock to 5 o’clock:
To help you record these defects accurately, when you type 1 to 12 in a
Clock field, a pop-up observation photo is shown with a superimposed
clock face that highlights your clock references.
Fig. 7.16: Entering a clock reference.
1
Clock face on pop-up photo illustrates the clock references.
In this example, a circumferential crack is observed fr
om 2 o’clock to 5 o’clock.
2 o’clock
5 o’clock
1
