23.5.2 RPM
Press RPM limit to reduce the micromotor’s maximum speed to a preset
level. The green indicator light means that the RPM limit is on. Press RPM
limit again to switch the limit off.
23.5.3 Apical action
When you select one of the apical presets a1 - a3, a small
Apex locator
window automatically opens on the control panel. For information on using
the apex locator, see section "Apex locator" on page 149.
When you use presets a1 - a3, the
Apex locator window also features an
Apical action button. When an apex measurement is not going on, toggle the
button to define what happens when the file tip reaches the point in the root
canal defined by the flash bar. The button always shows the current apical
action (thus, the symbol on the button changes according to the selected
apical action).
NOTE
Reaching the torque limit can also make the micromotor to rotate counter-
clockwise.
Apical action
No apical action
When the file tip reaches the point in the root canal defined
by the flash bar, this does not induce an action in the
micromotor and the micromotor continues to rotate forward.
Auto stop
The micromotor stops when the file tip reaches the point in
the root canal defined by the flash bar.
When the micromotor has stopped, a thin file can simply be
pulled out from the root canal by hand. If a thicker file is
used, the micromotor's reverse function must be used to
safely remove the file from the root canal.
Auto forward
When the file tip reaches the point in the root canal defined
by the flash bar, the micromotor will rotate counter-
clockwise (auto reverse) until it has reversed three
segments on the apex meter and then return to clockwise
direction.
Torque action vs. apical action
Torque action defines the micromotor's rotation when the torque limit is
reached. The only available torque action for the Morita micromotor is
autoforward. When the torque limit is enabled and the torque limit reached,
the micromotor will rotate counter-clockwise (reverse) until the torque value
has decreased to 50% of the torque limit value and then return to clockwise
rotation.
Apical action defines the micromotor's rotation when the file tip reaches the
point in the root canal defined by the flash bar. When the apical action
autoforward is selected and the flash bar is reached, the micromotor will
rotate counter-clockwise (reverse) until it has reversed three segments on
the apex meter and then return to clockwise rotation.
23 Operating instruments
146 Planmeca Compact i
User's manual
Summary of Contents for Compact i5
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