Transducer/Buffer Problems - GE PanaFlow HT User Manual

Chapter 4. Error Codes and Troubleshooting

4.3.3 Transducer/Buffer Problems

Ultrasonic transducers are rugged, reliable devices. However, they are subject to physical damage from mishandling
and chemical attack. The following list of potential problems is grouped according to transducer type. Contact GE if
you cannot solve a transducer-related problem.
1. LEAKS: Leaks may occur around the transducer buffers and/or the flowcell fittings. Repair such leaks immediately.
If the leaking fluid is corrosive, carefully check the transducer and cables for damage, after the leak has been
repaired.
2. CORROSION DAMAGE: If the transducer buffer material was not properly chosen for the intended application, they
may suffer corrosion damage. The damage usually occurs either at the electrical connector or on the face. If
corrosion is suspected, remove the transducer from the flowcell and carefully inspect the buffer electrical connector
and the transducer face for roughness and/or pitting. Any transducer damaged in this manner must be replaced.
Contact GE for information on transducers in materials suitable for the application.
3. INTERNAL DAMAGE: An ultrasonic transducer consists of a ceramic crystal bonded to the transducer case. The
bond between the crystal and the case or the crystal itself may be damaged by extreme mechanical shock and/or
temperature extremes. Also, the internal wiring can be corroded or shorted if contaminants enter the transducer
housing.
4. PHYSICAL DAMAGE: Transducers may be physically damaged by dropping them onto a hard surface or striking
them against another object. The transducer connector is the most fragile part and is most subject to damage. Minor
damage may be repaired by carefully bending the connector back into shape. If the connector can not be repaired,
the transducer must be replaced.
IMPORTANT:
Transducers must be replaced in pairs. Refer to Chapter 3, Initial Setup, to program the new transducer
data into the meter.
If the instructions in this section fail to resolve the problem, contact GE for assistance.
82 PanaFlow HT User's Manual