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Diff erence in measuring result between apex locator reading and radiography.
Sometimes the reading of apex locator and the X-ray image will not correspond. This does not
mean that the apex locator is not working properly or that the X-ray exposure is a failure. An
X-ray image might not show the apex correctly depending on the angle of the X-ray beam, and
the location of the apex might seem to be other than it really is.
4.9 Battery Charging
The motor handpiece has built-in rechargeable lithium battery. When
charging the battery, leave approximately 10cm around the charging base for
easy access to inlet and the power cord.
Insert the power adapter plug into the charging base power socket and confi rm
that they are correctly connected. Then insert the motor handpiece into the
charging base (the motor handpiece needs to be correctly aligned with the
charging base in the same direction for charging). When the blue indicator on
the charging base fl ashes, it is charging. When the motor handpiece is fully
charged, the blue indicator on the charging base is always on. After charging,
please unplug the power adapter.
4.10 Replacing Battery
Replace the battery if it seems to be running out of power sooner than it
should. Please use the original lithium battery.
a) Turn the motor handpiece power off .
b) Use tweezers etc. to open the rubber cover and then remove the screw.
c) Remove the battery cover.
d) Remove the old battery and disconnect the connector.
e) Connect the new battery and put it in the motor handpiece.
f) Replace the cover and its screw.
Extremely dry canal.
If the canal is extremely dry, the meter may not move
until it is quite close to the apex. In this case, try
moistening the canal with saline.
The actual apex for the canal is not the same as that for
the anatomical apex. There are frequently cases where
the apical foramen is located up towards the crown.
In these cases, an X-ray might lfi ldicate that the fi le
has not reached the apex even though it has actually
reached the apical foramen.
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