Morita Root ZX mini User manual

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Apex Locator
Root ZX mini
Operation Instructions

1Operation 2018-10-21
Table of Contents
Prevent Accidents 3
Warnings and Prohibitions 5
Parts Identification and Accessories 6
Usage 7
1. Before Using the Unit 7
Installing the Batteries 7
Connecting the Probe Cord 8
Checking the Function 8
2. Operating the Unit 10
Operation Panel Display and Switches 10
Settings 11
Meter Display 13
Root Canal Not Suitable for Electronic Measurement 16
Root ZX mini Meter Reading and Radiography 18
3. After Using the Unit 19
4. Replacing Batteries 20
Maintenance 22
Cleaning 22
Disinfection 23
Disinfection (other components): Wipe with Ethanol 23
Packing 24
Sterilization 24
Replacement Parts,Transport and Storage 25
Replacement Parts 25
Transport and Storage Environments 25

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Inspection and Warranty 26
Maintenance and Inspection Items 26
Warranty 27
Troubleshooting 28
Technical Specifications 30
Specifications 30
Symbols 31
Electromagnetic Disturbances (EMD) 32
Thank you for purchasing the Root ZX mini.
For optimum safety and performance, read this manual thoroughly before using the unit and pay
close attention to warnings and notes. Keep this manual in a readily accessible place for quick and
easy reference.

3Operation 2018-10-21
The warning symbols ( ) and caution symbols ( ) that appear next to the main text on the
right hand side of the page refer to and are explained by the Warnings and Cautions at the bottom
of the page.
Prevent Accidents
Do not fail to receive clear instructions concerning the various ways to use this equipment as de-
scribed in this accompanying Operation Instructions.
Fill out and sign the warranty and give the dealer from whom you purchased the equipment his
copy.
Do not fail to give clear instructions concerning the various ways to use this equipment as de-
scribed in this accompanying operator’s manual.
After instructing the customer in the operation of the equipment, have him fill out and sign the war-
ranty. Then fill in your own section of the warranty and give the customer his copy. Do not fail to
send the manufacturer’s copy to J. MORITA MFG. CORP.
Most operation and maintenance problems result from insufficient attention being paid to basic
safety precautions and not being able to foresee the possibilities of accidents. Problems and ac-
cidents are best avoided by foreseeing the possibility of danger and operating the equipment in
accordance with the manufacturer’s recommendations. First thoroughly read all precautions and
instructions pertaining to safety and accident prevention; then, operate the equipment with the
utmost caution to prevent either damaging the equipment itself or causing bodily injury.
The following symbols and expressions indicate the degree of danger and harm that could
result from ignoring the instructions they accompany:
This alerts the user of important points concerning operation or the risk of equipment
damage.
The user (e.g., healthcare facility, clinic, hospital etc.) is responsible for the management, mainte-
nance and use of medical divice.
This equipment must only be used by dentists and other legally licensed professionals.
Do not use this equipment for anything other than its specified dental purpose.
This warns the user of the possibility of extremely serious injury or complete destruc-
tion of the equipment as well as other property damage including the possibility of fire.
This warns the user of the possibility of mild injury or damage to the equipment.
Attention Customers
Attention Dealers
Prevent Accidents

4Operation 2018-10-21
If an accident occurs, the Root ZX mini must not be used until repairs have been completed by a
qualified and trained technician authorized by the manufacturer.
This equipment must only be used by dentists and other legally licensed professionals.
In Case of Accident
Intended Operator Profile
Patient Population
■J. MORITA MFG. CORP. will not be responsible for accidents, equipment damage, or bodily
injury resulting from:
1. Repairs made by personnel not authorized by J. MORITA MFG. CORP.
2. Any changes, modifications, or alterations of its products
3. The use of products or equipment made by other manufacturers, except for those by J.
MORITA MFG. CORP.
4. Maintenance or repairs using parts or components other than those specified by J. MORITA
MFG. CORP. and other than in their original condition
5. Operating the equipment in ways other than the operating procedures described in this man-
ual or resulting from the safety precautions and warnings in this manual not being observed
6. Workplace conditions and environment or installation conditions which do not conform to
those stated in this manual such as improper electrical power supply
7. Fires, earthquakes, floods, lightning, natural disasters, or acts of God.
■The useful life of the Root ZX mini is 6 years (based on self-certification) from the date of ship-
ment provided it is regularly and properly inspected and maintained.
■J. MORITA MFG. CORP. will supply replacement parts and be able to repair the product for a
period of 10 years after the manufacture of the product has been discontinued. For the duration
of this period, we will supply replacement parts and be able to repair the product.
Disclaimer
Age Child to Elderly
Weight N/A
Nationality N/A
Sex N/A
Health It is not intended for use on patients wearing pacemakers or ICDs.
Condition Conscious and mentally alert person. (Person who can stay still
during treatment.)
• This equipment is not recommended for use in children under 12 years of age.

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• Accurate canal measurement is not always possible depending on the shape and condition of the tooth as well
as a decline in the equipment’s performance.
• Do not use damaged file holders; an accurate measurement cannot be made with a damaged file holder.
• When a continuous tone is heard while the main power switch is on and without any operation, some electrical
part may be malfunctioning. Do not use the unit and send the unit to J. MORITA OFFICE for repairing.
• A rubber dam should be used when performing endodontic treatment.
• Some care must be taken concerning electromagnetic compatibility (EMC) when using the Root ZX mini. Refer
to the user’s manual and other attached documents for EMC information regarding installation and operation.
• Both portable and movable radio frequency transmitters may have some effect on the Root ZX mini.
• Using replacement parts or accessories not supplied by the original manufacturer could adversely affect the
EMC performance of the Root ZX mini.
• As far as possible, do not use the Root ZX mini near or simultaneously with other devices. If this cannot be
avoided, observe carefully and make sure both the Root ZX mini and the other device operate normally.
• Do not use this equipment in conjunction with an electric scalpel or on patients who have a pacemaker.
• Blocked canals cannot be accurately measured.
• Except for ways described in this manual, this equipment must not be connected to or used in combination
with any other apparatus or system. It must not be used as an integral component of any other apparatus or
system. J. MORITA MFG. CORP. will not be responsible for accidents, equipment damage, bodily injury or any
other trouble which results from ignoring this prohibition.
• Illumination devices such as fluorescent lights and the Film viewer which use an inverter can cause the Root ZX
mini to operate erratically. Do not use the Root ZX mini near devices such as these.
• Electromagnetic wave interference could cause this equipment to operate in an abnormal, random and possibly
dangerous manner. Cellular phone, transceivers, remote controls and all other devices which transmit electro-
magnetic waves located inside the building should be turned off.
• Do not perform maintenance while using the instrument for treatment.
* J. MORITA MFG. CORP. is not responsible for any accidents or other types of trouble that are
caused by not following the warnings and prohibitions noted below.
Warnings and Prohibitions
: This indicates when not to use the equipment.

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Parts Identification and Accessories
Contrary Electrode
File Holder
Set Switch
Power Switch
Data Output Port
(to transmit display data)
Probe Cord
Strap Holes
LCD Screen
Accessories
⹅Standard Accessories
Parts Identification
Probe Cord
(1)
File Holder
(3)
Contrary Electrode
(5)
Tester
(1)
Alkaline Dry Cells
(3)
Long File Holder
(1)
(LR03 (AAA size) batteries)
⹅Optional Accessories

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• The Root ZX mini is shipped without the batteries installed. Remove the cover and install the 3 LR03 (AAA
size) batteries.
• Do not reverse the plus and minus poles.
• Never allow the spring contact to push against the edge of the battery. This could damage the outer cover
causing a short or a leakage of battery liquid.
• After installation, give the cover a light tug to confirm it is securely attached.
1. Before Using the Unit
1. Slide the cover in the direction by the arrow in the illus-
tration and remove it from the Root ZX mini.
2. Insert the 3 LR03 (AAA size) batteries included in the
package.
(1) Insert the batteries by first pressing center of the
minus end against its spring contact.
(2) Slide the plus end down into place and make sure
the contacts are not bent or damaged.
3. Slide the cover all the way down until it is securely
closed.
BAD
Installing the Batteries
Usage

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• Handle the Root ZX mini carefully; do not drop, bump or expose the unit to other kinds of impacts or
shocks. Rough handling could cause damage.
• Make sure the probe cord plug is securely plugged into the jack. A poor connection can prevent measure-
ment.
• Do not drop anything on or bang the probe cord plug after it has been inserted into the jack.
• Make sure to match colors of the file holder and contrary electrode to the probe cord.
Measurements cannot be made if these connections are reversed.
• The unit may turn off if its side is bumped.
1. Insert the probe cord completely into the jack on the
left side of the Root ZX mini.
1. Press the Power switch to turn the unit on. The display
will appear in the LCD screen.
* The instrument turns itself off if it is not used for 10 min-
utes.
2. Check that the probe cord is properly plugged into the
jack.
3. Check that the file holder and contrary electrode are
properly connected to the probe cord.
4. Touch the metal part of the file holder with the contrary
electrode. Check that all the meter indicator bars on the
display light up.
2. Insert the file holder’s gray male plug into the gray
female connector on the probe cord. Insert the contrary
electrode into the white female connector on the probe
cord.
Probe Cord
Connector (white)
Probe Cord
Connector (gray)
File Holder Contact
Power Switch
Contrary Electrode
Contrary Electrode
File Holder Plug
Connecting the Probe Cord
Checking the Function

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• Check the Root ZX mini operation before each patient. If the indicators in the display do not all appear
normally, the instrument may not be able to make an accurate measurement. In this case, stop using the
instrument and have it repaired.
Checking the Function
⹅Checking the Function with theTester
Check the Root ZX mini’s performance with the tester once
a week.
1. Press the Power switch to turn the unit on.
2. Insert the tester into the probe cord jack.
Check that the meter indicates within ±3 bars away
from (above or below) 1.
* The meter may jump when the tester is inserted. If it
does, wait for about one second until the meter stabilizes
and then check the reading.
* If the reading is 4 or more bars away from 1, the unit will
not make an accurate measurement. In this case, contact
your local dealer or J. MORITA OFFICE.
Must be
within
this range
Tester