Panametrics PT878GC, Инструкция по эксплуатации

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Chapter 3.
34 TransPort™ PT878GC User’s Manual
3.1.5.1 Installing DMP-1 Dampening Material
1. Be sure the CFG-V clamping fixture is installed on the pipe with the transducers as described in the section
Installing the V Series Clamping Fixture and Transducers on page 25. With a marker, mark scribe lines on the
inside edges of the brackets onto the pipe. These lines indicate where to apply the material. (One 9.5-in. roll fits
between the brackets.)
2. Remove the fixture and transducers.
3. Use a dry towel or rag and thoroughly dry the pipe.
4. Unroll the DMP-1 material and cut off a length equal to the circumference. Peel the paper backing off the cut
portion.
IMPORTANT: The DMP-1 material will only adhere to the pipe correctly if the pipe is completely dry. To adhere properly,
the material must also be at a temperature above 50°F (10°C).
5. Before more atmospheric condensation can occur on the outside of the pipe, roll the DMP-1 dampening material
once around the pipe, following the scribe marks that represent the inside edge of the fixture, as shown in Figure
32 below.
Figure 32: DMP-1 Dampening Material
Wrapped Around Pipe
6. Reinstall the fixture, and make sure the spacing is set correctly. Loosely mount the transducers on top of the
dampening material, using the correct spacing.
7. With a marker, trace around the transducer footprint, as shown in Figure 33 below.
Figure 33: DMP-1 Material with
Transducer Footprint Traced
8. Remove the fixture and transducers. Then use a utility knife to cut out the area under the transducer footprint,
and peel the cut material off the pipe, as shown in Figure 34 below.
Note: Remove excess dampening material as soon as possible, before it adheres to the pipe and becomes
difficult to remove.