Operation - Welch Allyn MicroTymp Operating Instructions Manual

4. Grasp the subject's pinna. Pull gently up and
the ear canal (or straight back for children).
5. While maintaining tension on the pinna, press the tip firmly
against the ear canal opening. The tip should point straight
into the ear canal for adults and slightly anteriorly for
children. Inadequate pressure or misalignment will cause LEAK
or BLOCK
to complete a test.
6. Upon achieving a seal, an indication on the +200 Vea scale will
appear. Points will then progress from right to left across the
display. If BLOCK
errors which prevent the seal necessary
LEAK or OPEN
6
back to straighten
symbols