Adjusting the rate, A output, and V output in emergency mode: These parameters can be adjusted using the three upper dials (numbers 4, 5, and 6) on the right side of device marked in yellow in Figure A1; these dials will be detailed below. To return the device to demand or synchronous pacing:

- Press the ON key once if the asynchronous pacing message is displayed in the lower screen.
- Press the ON key twice if the asynchronous pacing message is not displayed in the lower screen. The first press of the ON key causes the asynchronous message to appear.
- The number 14 in Figure A1 identifies the lower screen.

The device will begin synchronous pacing with the following values: