GE PT878GC Manual De Usuario

April 2004

GE Panametrics strongly recommends applying DMP dampening 
material in ALL clamp-on applications to help eliminate signal 
noise. The material comes in two versions: 

The DMP-1 self-adhesive sheet for applications up to 
150°F (66°C). The material comes as two 9.5-in. (24 cm) 
wide sheets cut in sufficient length to cover the pipe 
circumference plus an additional tenth of a circumference. 
The material can be cut with a utility knife, and comes with 
a paper backing that is removed before installation.

The DMP-3 is a clay-like compound for all temperature 
applications. If the temperature is over 150°F, the PDJ pipe 
dampening jacket (available from GE Panametrics with 
preapplied DMP-3) must be used with the material.

At a minimum, you should consider applying dampening material 
if you have any of the following conditions:

The distance from the nearest butt weld or pipe flange is 
less than 10 ft (3 m);

The pipe size is under 4 in. (100 mm) diameter and the gas 
pressure is 200 psig (14 barg) or lower; 

The pipe is deformed,

The pipe is old, with a history of scaling or rust,

The pipe experiences condensation on the outside.

Note: Consult a GE Panametrics flowmeter applications