E10190-000816
FOS
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surface of the CFRP/GFRP layer. Follow instructions above.
The user should note that the FOS-B can also be bonded directly on concrete or on a
CFRP/GFRP sheet, and then simply covered with a coat of epoxy.
7. CFRP/GFRP top sheet installation (optional)
In option, additional layer(s) of CFRP/GFRP can be installed. In such case, install the
additional layer of pre-cut sheets such a way that fibers on the latter are perpendicular to
the fiber of the bottom sheets. Follow instructions above. Brush or roller must be used in
fiber longitudinal direction. In order to avoid the disalignment of fiber or peeling off of the
mesh, do not stroke brush or roller on to the sheet strongly.
8. Final epoxy coating
The last layer of CFRP/GFRP must be covered with an over-coating of epoxy of
approximately 200-300 g/m
2
. Follow instructions above.
9. Curing
Let cure. The work site must be protected from rain, dust, sand, etc.
2.2 MATING GAUGES TO THE READOUT UNIT
Before installing and using the gauge, the readout unit manual must be read and
understood.
For proper use of the fiber optic strain gauges, the gauge fiber optic connector must be
kept clean and free of dust at all times. Dust may obstruct the light transmitted from one
connector to the other, and reduce the signal-to-noise ratio to an unusable level. These
connectors can be cleaned with the Fiber Optic Connector Cleaning kit, and it is a good
practice to always clean the gauge connector before mating to the instrument. Gauge
connectors can be cleaned by wiping the end with soft tissues such as Kimwipes. The
input connectors of ROCTEST's fiber-optic readouts unit must be clean as well. Use the
specially designed 2.5 mm mini foam swab for cleaning the input connectors of your
readout unit.
