Always use a Thinklabs Electromagnetic Diaphragm (EmD). Conventional stethoscope diaphragms will not work on the ds32a.
Never open the ds32a in a dusty
environment. Do not allow dust, lint or excess moisture to enter the
Probe. For best results, change the diaphragm in a clean, dust-free
environment, such as a medical examination room, or other clean
environment.
- Unscrew the diaphragm ring and remove as shown. (Direction - unscrew anti-clockwise when looking directly at the diaphragm).
Avoid touching the brass plate or the inside surface of the diaphragm. These surfaces are sensitive, and surface contamination can compromise performance, or cause permanent damage.
- Place the new diaphragm in the diaphragm ring, with graphics
facing out, and re-attach the diaphragm ring. Do not over-tighten the
diaphragm ring.
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Support and FAQs 
To replace the Diaphragm
