Integrity Acoustic Solutions 40A Series
Integrity Acoustic Solutions · Model 40A Series
Single-wall (individual room) The 40a Series's construction is a single or multiple occupancy room, constructed of 4 in. thick modular panels, complete with carpeted vibration isolated floor, space-saver roof mounted ventilation, recessed electrical, Noise-Lock doors and double glazed window, audiometric jack panels acoustically matched and shipped read for field installation.
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.
Sound attenuation below spec
HighSymptoms: Ambient noise levels inside the booth exceed the target, failed annual attenuation test.
Root cause: Worn door / hatch gaskets, a warped door, or panel seams that have loosened.
Ventilation fan noise or airflow loss
MediumSymptoms: Fan noise intrudes on testing, or the booth gets stuffy.
Root cause: Worn silenced-ventilation fan or a blocked baffle.
Interior light / signal fault
MediumSymptoms: Interior light out, talk-back or patient-response signal not working.
Root cause: Lamp / LED, the talk-forward/talk-back intercom, or the response-button wiring.
Jack-panel / feed-through fault
MediumSymptoms: Audiometer signal to the transducers drops or is noisy.
Root cause: Worn bulkhead jack panel or a broken feed-through connector.
Door hardware / latch wear
LowSymptoms: Door hard to seal, latch will not draw the door tight.
Root cause: Worn cam latch or hinges.
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.
Door / hatch gasket set
Class Periodic replacementRel. cost $$R&R Fairly easy
Silenced ventilation fan
Class Major service partRel. cost $$R&R Moderate
Interior lamp / LED
Class Periodic replacementRel. cost $R&R Easy
Talk-back / talk-forward intercom module
Class Major service partRel. cost $$R&R Moderate
Bulkhead jack panel / feed-through
Class Major service partRel. cost $$R&R Moderate
Door cam latch / hinge kit
Class Major service partRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Door / hatch gasket set | Periodic replacement | $$ | Fairly easy |
| Silenced ventilation fan | Major service part | $$ | Moderate |
| Interior lamp / LED | Periodic replacement | $ | Easy |
| Talk-back / talk-forward intercom module | Major service part | $$ | Moderate |
| Bulkhead jack panel / feed-through | Major service part | $$ | Moderate |
| Door cam latch / hinge kit | Major service part | $ | Fairly easy |
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: Fails the attenuation check
- Measure ambient octave-band levels inside vs the target.
- Inspect and replace the door / hatch gaskets.
- Check the door closes flush and the latch draws it fully home.
- Re-torque loose panel seams and check the ventilation baffles seal.
- Re-run the attenuation test and document it.
Symptom: Fan noise or poor airflow
- Confirm the fan runs and airflow is present at the outlet.
- Clean or clear the ventilation baffles.
- Replace a noisy fan with the correct silenced unit.
- Verify interior noise with the fan running.
- Re-check the intercom and response signal.