A-dec EA-50LT User manual

Before
Use Safety
Notes

CAUTION: Federal law restricts this device to sale by or on the order of a dentist, physician or

any other practitioner licensed by the law of the State in which he or she practices to
use or order the use of the device. The dental motor should be maintained according
to the manufacturer’s recommendations and in line with infection control procedures
for the safety and well-being of patients. Improper use, e.g. missing hygienic
maintenance, or non-compliance with our instructions of the use of accessories and
spare parts which are not approved by A-dec, invalidates all claims under warranty
and any other claims.

• Always ensure the correct operating conditions.

• Always ensure the correct supply voltage.

• Check the motor for damage and loose parts before and between uses.

• Check that air and water coolant spray are set correctly.

• The operation of the motor is not suitable in an explosive gaseous atmoshphere.

• Interference may occur when used on patients with cardiac pacemakers.

• Always follow recommendations made by the manufacturer of the transmission instrument
and the rotary instrument.

• The operation of this motor is permitted only on dental units, which correspond to the
standards IEC 601-1 (EN 60601-1) and IEC 601-1-2 (EN 60601-1-2) or as labeled (UL 2601-1).

• The EA-50LT electric micromotor should only be operated with an A-dec EA-50LT cordset
and motor controller.

• Electrical safety is inherent in equipment grounding and insulation

• Operating mode: The dental motors are designed for intermittent operation of 2 minutes
on and 3 minutes off.

• Sterilize the motor in a water steam sterilizer with vacuum for 10 minutes at 134 ºC (273 ºF).

Install the
Motor

1. Position the motor connection tubes with the connection openings on the handpiece tubing.

2. Press the motor and the tubing together until you hear two clicks.
If the motor fails to connect, remove it from the tubing. Push back the tubing nut to the stop
and repeat steps 1 and 2.

3. Check that the motor has engaged the tubing securely. The motor and tubing should not
separate with a gentle pull.

Install the
Handpiece

CAUTION: Do not connect or remove the handpiece while the motor is running.

• Push the handpiece onto the motor. If the handpiece is fiber optic, be sure to line

up the notch.

• Check for a secure hold on the motor. The handpiece should not come off with a gentle pull.

Program
the
Touchpad

1. Press and hold the Program button and the A/B button simultaneously for 3 seconds.

2. Select the handpiece position by picking up or pulling forward the electric handpiece.

3. Use + and – to select the micromotor and then press Program. You should hear 3 beeps and a
screen appears to confirm your selection.

4. Return handpiece to holder and press Program to exit.

5. The factory default settings are:

Air and water coolant on
Direction clockwise
Preset m4 active
m1 = 2,000 rpm, air and water coolant on
m2 = 10,000 rpm, air and water coolant on
m3 = 20,000 rpm, air and water coolant on
m4 = 40,000 rpm, air and water coolant on

A-dec EA-50LT Electric Micromotor

Quick Start Guide

Copyright © A-dec Inc., 2004-01, All Rights Reserved 86.0608.00 Rev 2 PDR 03992-11

Change the
Motor Speed

1. Lift the electric handpiece from the holder.

2. Adjust the speed using + and –.

3. Press Program and then a memory button. You should hear a 3 beep confirmation.

4. Return the handpiece to its position, then lift it again to confirm the setting.

Change the
Motor
Direction

1. Lift the electric handpiece from the holder.

2. Press the motor direction button. The rotation icon changes and the screen flashes continually
in this mode.

3. Return the handpiece to its position and select it again. The motor direction always defaults
to clockwise.

Set Air and
Water
Coolant

• Use the deluxe touchpad to turn the air and water coolant ON and OFF.

• Use the foot control to turn water coolant ON and OFF. Notice the screen icon

changes accordingly.

Test Run

• Start the motor by depressing the foot control.

• If you observe vibrations, unusual noise, heating, smell or leakage, contact your

Authorized A-dec Dealer for assistance.

Clean and
Disinfect the
Motor

1. Wear protective gloves.

2. Remove the handpiece from the motor by pulling the two apart.

3. Carefully wipe the exterior of the micromotor with a soft cloth using only commercially
available surface disinfectants or 80% ethyl alcohol.

4. Dry the motor completely.

Sterilize the
Motor

1. Purge the water lines with air.

2. Remove the motor from the tubing by pushing the tubing sheath back up to the stop while
pulling the motor off the handpiece tubing.

3. Place the motor in sterile pouch (FDA market cleared), equivalent to sterile goods packaging
DIN 58953.

4. Sterilize the motor in a water steam sterilizer with vacuum for 10 minutes at 134 ºC (273 ºF).

5. Be sure the motor is dry before removing from the sterilizer.

Copyright © A-dec Inc., 2004-01, All Rights Reserved 86.0608.00 Rev 2 PDR 03992-11