5.4.2 PHACO (U/S) NORMAL MODE
The Normal Mode may be selected for “LINEAR” or “FIXED” U/S Power %.
The U/S Power (%), Flow (cc/min), Vacuum (mmHg), and Pulse (pulses/s) parameters can all be
adjusted using the UP and DOWN arrow keys.
Linear: Phaco energy is controlled in a “LINEAR” fashion by the foot pedal from zero to the
maximum U/S Power value preset by factory default settings or user-programmed settings.
As discussed earlier in Section 3.6 System Foot Pedal, the foot pedal has three (3) positions.
Position (3) is Phaco power. When position (3) is reached, the Linear Phaco power starts at zero
and, depending on the travel of the foot pedal, can reach the maximum preset U/S Power value
with complete depression of the Foot Pedal main treadle. The actual Linear Phaco power will be
noted in the US Power (%) display on the console.
Releasing the foot pedal to position (2) or (1) will stop the Phaco power and continue the
operation of the current foot pedal position, either Irrigation/Aspiration or Irrigation only,
respectively. Releasing the foot pedal completely will cease all operations: Phaco, Aspiration, and
Irrigation.
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