17
(ｂ)
(ａ)
＜ Set Switches ＞
（Display）
Down
Up
[5]Operation 3.(2)
3)Safety Stop and Avoidance Mode
Auto-positioning will stop if something presses up against on the
assistant’s instrument holder (A) or the step (B).
After checking the appropriate areas and removing
any obstacles, resume normal operation.
After a safety stop has been executed, the unit goes into Avoidance
Mode. This allows one to reverse the direction of the chair’s movement
to release any objects that have been accidentally caught by it.
Reverse the chair’s movement using any of the following methods:
(a) Step once on the foot pedal
(
b) Operate one of the positioning levers on the foot control
(Seat or back rest, up or down, will all work)
(c) Press any one of the auto-positioning switches on either the
drentist or assistant’s side.
ADVICE
(ｃ)Auto-positioning Switches
(3)Set Switches
These switches are used in combination with various changeover switches
(see following section) to change settings and values. Values or settings
are shown in the display.
See the following section for specific applications.
＜ Safety Switches ＞
（Ａ）
（Ｂ）