Welch Allyn AM 232 Manual Audiometer - User Manual - Manual (Page 14)

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Installation
1. Plug the power cord into the appropriate jack (R1) on the back panel of the
instrument.
2. Plug the other end into a line power (mains) outlet.
3. Plug the earphones into the earphone jacks (R3) on the rear panel. Note the
symbol along the top of the front panel, which indicates which is right (RED) and
which is left (BLUE).
4. Turn the power switch to ON.
Note: For battery operation, please refer to Chapter 2.