Atec Panametrics-Olympus-DF868 - Manual (Page 7)

GE
Sensing
DF868
Application
Notes In Brief
Clamp-In Capability
GE offers a wide variety of ways to install transducers to
adapt to each piping and application situation. For large
buried pipes, where access to the outside of the pipe
prevents using clamp-on or standard wetted
transducers, GE offers clamp-in transducers. These
transducers offer the unique ability to be attached to the
inner wall of large pipes. With a precision laser alignment
tool, the transducers, can be set up properly facing each
other, so when the water fills the pipe, the transducers
will work flawlessly. The clamp-on transducer is design
with a dual element head for 100% redundancy. GE is an
industry leader in transducer design with extremely low
failure rates. By making these transducers with two
elements, ensures years of operation without their ever
having to be serviced.
Clamp-On Avoids Plugged Impulse Lines
GE offers clamp-on transducers for a wide variety of
installations. One customer purchased the C-RS
transducer with a DigitalFlow DF868 to measure flow on
a 12 in (300 mm) crude resid stream. Previously, an
orifice plate was used for the measurement. The impulse
lines for the DP transmitter were consistantly getting
plugged, resulting in the need for service and unreliable
flow measurements. The clamp-on system offered by GE
was a preferred measurement setup because installation
could be done while the unit was operating, and no
additional restrictions that could cause pressure drop
were introduced. The customer saved approximately
US $50,000 in the first year, due to reduced maintenance
costs.
Pair of CRS transducers
Ø 0.25 in
(6.3 mm)
0.125 in
(3.175 mm)
0.125 in
(3.175 mm)
1/4-20 nuts for
adjusting the
transducers’
alignment during
installation