39
6 Symbols
The following symbols appear on the audiometer, the manual
or mains adapter:
Definition: Refer to instruction manual (mandatory)
Definition: Type B applied part – an applied part provi-
ding protection against electric shock, particularly
regarding allowable patient leakage current and
patient auxiliary current.
The applied parts are the left & right earphones, bone
vibrator, insert masker, patient response switch and
the associated cables.
Definition: The output from the Mains AC adaptor is
Direct Current
Definition: Class II equipment – equipment in which
protection against electric shock does not rely on BASIC
INSULATION only, but in which additional safety pre-
cautions such as DOUBLE INSULATION or REINFORCED
INSULATION are provided, there being no provision for
protective earthing or reliance upon installation condi-
tions.
This Mains AC adapter is only suitable for indoor use.
DC
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