Welch Allyn PneumoCheck Operating Instructions Manual page 44

5. Insert new batteries according to diagram inside battery
compartment.
6. Replace the pneumotach assembly and tighten the two screws
on the bottom until the pneumotach is securely in place.
7. Recalibrate the PneumoCheck (see p. 34).
REPLACE W I T H ALLYN NO.72500
WELCH
BATTERIES ONLY. USE OF BATTERIES OF OTHER MANUFAC-
TURE MAY CAUSE RISK OF FIRE OR DAMAGE TO THE UNIT.
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