Panametrics DigitalFlow GC868, Руководство для стартапов

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Chapter 1. Installation
1-21 DigitalFlow™ GC868 Startup Guide (1 and 2-Channel)
7. Position the transducer yokes to the correct spacing and reinstall the fixture
around, but not on, the DMP-3 material, as shown in Figure 1-30b above.
8. Remove the DMP-3 material from the transducer locations (see Figure 1-31a
below).
Figure 1-31: Clearing DMP-3 (a) and Installing Transducers (b)
9. Apply the couplant to the transducers, and install the transducers onto the pipe
(Figure 1-31b above).
Note:
If the measurement point is near a flange or weld, apply DMP-3 between
that structure and the fixture as well.
1.5.4 Installing the PDJ
Damping Jacket
If the pipe temperature is over 150°F, you must use the PDJ pipe damping jacket with
preapplied DMP-3. As the damping material dries out over several hours after
installation, its effectiveness increases. The jacket is available in standard pipe sizes
from 3 to 12 in. (75 to 300 mm).
1. Remove any insulation from the installation area, as well as any loose paint, rust
and high spots from the pipe.
2. Remove the backing paper from the inside of the pipe damping jacket (shown in
Figure 1-32 below).
Figure 1-32: PDJ Pipe Damping Jacket
3. Install the jacket on the pipe as shown in Figure 1-33 below. Tighten the clamping
screws so that some fluid drips from the bottom of the jacket.
(a)
(b)