Thermo Scientific DCT6088, User Manual

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System Installation
Transducer Mounting Methods
The signal transmitted in a Z method installation has less attenuation than
a signal transmitted with the V method. This is because the Z method
utilizes a directly transmitted (rather than reflected) signal that transverses
the liquid only once. The Z method is used primarily in applications where
the V method cannot work due to signal attenuation from excessive air or
solids in the liquid, thick scale, poorly bonded linings, or very large pipes.
In addition, the Z method generally works better on larger diameter pipes
where less pipe length is required for mounting.
Z Method
Figure 2–7. Z mounting method
To mount the transducers using the Z mounting method, follow the steps
below.
1. Establish a reference at the 3 o’clock and 9o’clock positions on the
pipe.
Figure 2–8. Z mounting method, step 1
2. Place a transducer at the 3 o’clock position.
3. Trace the shape of the 3 o’clock transducer along its inside edge
(opposite the cable connection). Draw a horizontal line at its center.
Remove the transducer.
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