Chapter 2. Clamp-on fixture and transducer installation
12
AquaTrans™ AT600 User’s manual
4.
Set the two transducers at the spacing calculated by the meter and tighten them in place, as follows:
a.
Loosen both transducers and rotate the fixture so that the transducers are in view (see figure 12 below).
Figure 12: Transducers rotated into view
b.
Set the transducers to the spacing calculated by the meter. If you are using solid couplant, apply it to both
transducer faces. Then, rotate the transducers back onto the rail (see figure 13 below).
Figure 13: Set transducer spacing and apply couplant
5.
See figure 14 below for an example of a completed installation. In this drawing, LSL is the lower specified limit and
USL is the upper specified limit for the installation.
Note:
For a one-fixture installation, LSL is 0 on the scale and USL is 250 mm for a 2 MHz transducer or 320 mm for a 1
MHz or 0.5 MHz transducer. The transducer spacing is measured from LSL to a point ≤USL.
Figure 14: Installation for two traverses with one fixture
6.
Your clamp-on fixture and transducer installation is now complete. To wire your AT600 flow meter, proceed to
"Wiring the AT600 electronics" on page 19.
Hand wheel
Transducers
Couplant
Spacing
LSL
USL
DOWNSTREAM
Spacing
UPSTREAM
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