Enable-IT 868 Manuel d'utilisateur télécharger pdf (Page 137)

Diagnosis and Troubleshooting 10-15

December 2003

Clamp-on Transducer Problems (cont.)

4. PHYSICAL DAMAGE

Transducers may be physically damaged by dropping them onto a

hard surface or striking them against another object. Usually the

connector on the transducer is the part that is damaged, as it is the

most fragile. Minor damage may be repaired by carefully bending

the connector back into shape. If the connector cannot be

repaired, replace the transducers. Note that transducers must be

replaced in pairs, and that after replacement the flowmeter

parameters should be checked (see Chapter 3, Programming Site

Data).

5. CYCLE SKIP CONDITION

A cycle skip is usually caused by a distorted or altered signal due

to poor couplant, bad wall, or unusual fluid disturbances. To

resolve a cycle skip, recouple both transducers with proper

couplant. Try standard CPL-1 couplant that is good to 212°F or

CPL-2 for up to 500 °F. In addition, make sure the pipe wall is

free of paint and rust.

Contact GE Panametrics if you cannot solve a transducer-related

problem.

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Enable-IT 868 Manuel d'utilisateur Page 137