HP 21243A
HP · Model 21243A
The HP 21243A is a DEB sector ultrasound transducer probe. This transducer probe has a frequency range of 2.7/3.5MHz and is used with cardiac applications. The HP 21243A is compatible with the Sonos 2000 & Sonos 2500 series ultrasound systems.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Element drop-out / dead elements
HighSymptoms: Black vertical band in the image, halved sensitivity, artefact that stays with the probe on any port.
Root cause: Cracked or delaminated piezo elements, or broken cable conductors into the array.
Lens / membrane damage or delamination
HighSymptoms: Near-field haze, bubbles under the lens, visible crack or a bite mark (TEE).
Root cause: Impact, aggressive disinfectant, or age; the acoustic lens has lifted from the array.
Connector / strain-relief fault
MediumSymptoms: Image comes and goes when the cable or connector is flexed.
Root cause: Broken conductors at the connector or at the probe strain relief.
Electrical-safety / insulation failure
HighSymptoms: Fails the leakage / insulation test; unsafe for patient contact (critical for intracavitary and TEE probes).
Root cause: Fluid ingress or a lens breach compromising patient isolation.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Transducer (exchange / repair)
Element or cable damage is usually an OEM/third-party repair, not a field fix.
Class Periodic replacementRel. cost $$$$R&R Fairly easy
Connector pins / housing
Class Major service partRel. cost $$R&R Moderate
Acoustic lens / membrane
Class Periodic replacementRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Transducer (exchange / repair) Element or cable damage is usually an OEM/third-party repair, not a field fix. | Periodic replacement | $$$$ | Fairly easy |
| Connector pins / housing | Major service part | $$ | Moderate |
| Acoustic lens / membrane | Periodic replacement | $$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Dead band or drop-out in the image
- Confirm the artefact follows the probe onto a second port / system.
- Run the system's transducer element-test if available.
- Inspect the lens for cracks and the cable for kinks.
- Quarantine the probe and arrange an element/cable repair or exchange.
- Do not use an intracavitary/TEE probe that fails the element or leakage test.
Symptom: Image drops out when the cable is moved
- Flex the cable along its length and at both ends while scanning.
- Inspect the connector for bent pins and the strain relief for splits.
- Try the probe on another system to rule the system out.
- Send for a connector / cable repair.
- Re-test electrical safety before returning to service.
Technical Specs
- Clinical Applications
- Anesthesia
Documents & Manuals
No documents available for this device yet.
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