Panametrics C-ET, Installation Manual

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22 Model C-ET Installation Guide
1.3.3.5 Mounting the Transducers
If your application:
• requires junction boxes, refer to step 1 below.
• does not require junction boxes, skip to step 3.
1. Apply a thread sealant to the transducer threads. A sealant is not required within the U.S., however, a sealant
must be used in European Communities.
2. Before mounting the transducers, thread the junction box onto the end of the transducer with the BNC connector.
Ensure that at least five full threads are engaged. Make sure to orient the cover of the junction box so it is
accessible to make cable connections once the box is installed.
3. If you are using:
• CPL-16 to confirm the soundspeed of the fluid, proceed to the next step.
• CPL-12, -13, -14 or -15, proceed to step 7 on the next page.
4. Apply a bead of couplant 0.25 in. (6 mm) wide along the entire length of each transducer face. The purpose of
the couplant is to expel the air gap between the transducer and the pipe. Air will cause the transducer signal to
attenuate.