Morita Tri auto mini, Setup Instructions, Page: 21 / 40

Operation 2011-07-05 20
Meter Display
Operation
1
iii ii i
Measurement Bar
Meter Numbers
Flash Bar
0.5
Blinks On and Off
• Occasionally the meter will make a sudden and large movement as soon as the file is inserted into the root canal, but it will return to normal as the file is
advanced down towards the apex.
• The contrary electrode, file electrode and metal parts of the contra angle could cause an adverse reaction if the patient has an allergy to metals. Ask the
patient about this before using the Tri Auto mini.
• Take care that medicinal solutions such as formalin cresol (FC) or sodium hypochlorite do not get on the contrary electrode or the contra angle. These could
cause an adverse reaction such as inflammation.
• The file electrode cannot be used with the following types of files including nickel-titanium ones. Use these files without attaching the file electrode.
Files with a shank diameter greater than 1.2 mm, Files with shanks that do not have a circular cross section, Gates Glidden Drills, Tools with large cutting
heads such as largo burrs.
• In some cases such as a blocked root canal, a measurement can not be made. (For details refer to the section of the Root ZX mini manual that covers canals
not suitable for measurement.)
• Accurate measurement is not always possible, especially in cases of abnormal or unusual root canal morphology; always take an X-ray to check the
measurement results.
• If the meter does not move when the file is inserted, the unit may be malfunctioning and must not be used.
• Do not use an ultra sonic scaler while the contrary electrode is hooked in the patient’s mouth; noise from the scaler could cause the motor to start running
resulting in an accident or injury.
• Absolutely never allow the contrary electrode, the handpiece file electrode or the connections for these to contact an ordinary AC power source such as a
socket; this could result in a very serious and angerous shock.
* Refer to the user manual for the Root ZX mini for information about canal measurement and for warnings and notes about use.
i. The Measurement Bar shows the location of the file tip. The Flash Bar blinks on and off when the file is inside the canal.
ii. The 0.5 meter reading shows where the file tip is about 0.5 to 1.0 mm from the anatomical apex.
* The numbers 1, 2, and 3 on the meter do not indicate length in millimeters.
iii. If the file tip goes past the Flash Bar, an alarm will sound and the backlight will blink on and off.
Contrary Electrode
Turn on the Tri Auto mini and Root ZX mini.
The backlight for the display will be yellow.
Hook the Contrary Electrode in the corner of the
patient’s mouth.