10-003591-01EN [Q7780031], Rev. 4, January 2020
Overview 21
1.2 Alternative Components
The FlexoFORM scanner requires dedicated SFA1-FLEXO series wedges and a FA1-
type flexible probe. However, the FA1-type probe can also be used with two other
wedge series designed to scan without a FlexoFORM scanner:
• Small-diameter wedge series (SFA1-SMALL): used to manually scan the
extrados of elbows or pipes with outer diameters from 33 mm (1.3 in.) up to
102 mm (4 in.).
• Automated 2D rastering wedge series (SFA1-AUTO): this wedge series can be
used with the SteerROVER or MapROVER motorized scanner to perform
automated corrosion inspection of pipes with outer diameters of 218 mm
(8.625 in.) and greater in the longitudinal direction.
Both SFA1-SMALL and SFA1-AUTO wedges can be fitted with a Mini-Wheel encoder
from Olympus, using the standard hardware kit provided with the encoder. This
setup can be used to perform encoded, one-line scans (see Figure 1-3 on page 21).
Figure 1-3 Mini-Wheel encoder standard hardware kit
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