KERR Demi L.E.D Curing Light Page 7 Operator'S Manual Download

Page: 7 / 133

DEMI CURING LIGHT OPERATING STATES

During operation of the wand, there are three distinct operational states:

I. Idle:

The unit is “Idle” when it is not “Curing” or in “Sleep” mode and the battery

is CHARGED or LOW. The user may cycle between 5-second, 10-second and
0-second curing modes by pressing the mode switch. Curing cycles are also
initiated when the unit is in the “Idle” state.

II. Curing:

A “Curing” cycle is initiated by pressing, and releasing, the trigger

switch while the unit is “Idle”. A 5-second, 10-second or 0-second cycle will
be started, depending on the status indicated by the Curing Mode LEDs. Once
a “Curing” cycle is started, the Curing Light LED will be turned on and a tone
will sound. Depending upon which mode was selected, a tone will sound every
five seconds until the cycle is complete, at which time a final, longer duration,
tone will sound.

Note:

Pressing the Trigger Switch for a second time during a

“Curing” cycle immediately interrupts the “Curing” cycle and causes the final tone
to sound, regardless of how much time has elapsed since beginning the cycle
(pressing the Mode Selection Switch during a “Curing” cycle has no effect).

III. Sleep:

The Demi will go to “Sleep” to conserve battery life after approximately

8 minutes of no activity. It can be “awakened” by pressing either the mode or
trigger switch once, at which time the unit will be in the “Idle” state. The unit
will reflect the last cure mode chosen. The mode or trigger switches can then be
pressed to switch between modes or to initiate a cure. While in “Sleep” mode, all
LEDs are turned off and the curing light will go into a low power state. Battery
life (if left uncharged and unused after receiving a full charge) is approximately
6-months whether the battery is in the handpiece or not.

OPERATE THE DEMI CURING WAND

Select the desired curing mode by pressing the Mode Selection Switch (1.). (

Fig. 9

)

II.

Place the Light Guide (.) over the tooth, as close to the tooth as possible without

touching it, press and release the Trigger Switch (.). The unit will sound a tone
at 5-second intervals as previously described. (

Fig. 9

)

*Other light guides that may yield different outputs are available for the Demi.

MAINTENANCE: CLEANING / DISINFECTING / STERILIZING

Fiber-Optic Light Guide:

a) Immerse/thoroughly drench light guide in a surface decontaminate cleaner

(soap and water cleaning solution).

b) After 10 minutes, scrub with an instrument cleaning brush until visibly free

from debris.

c) Rinse all parts with warm water.

II.

Fiber-Optic Light Guide - Sterilizing:

a) Sterilize in a steam autoclave using distilled water at a temperature of

70°F (1°C) for 0 minutes.

b) Do not add chemical solutions to the autoclave.
c) Do not use a chemical autoclave.

III.

Optics Maintenance Kit (PN 10) – After numerous autoclave cycles, a brown

or gray discoloration can accumulate on the polished ends of the light guide.
This is a residue that forms during the autoclave drying cycle. It is recommended
that the Optics Maintenance Kit be used every 50 autoclave cycles. Following the
instructions included in the kit helps promote optimum curing performance.
To remove composite that adheres to the tip of the light guide:
•

Soak gauze in alcohol.

•

Wrap the gauze around a razor blade.

•

Rub the tip of the light guide with the gauze-protected razor blade until
the composite is removed.

•

Note:

Never use a blunt instrument to remove composite because it will

scratch the glass.

IV.

Handpiece and Battery Charger -- Plastic parts can be cleaned following these

guidelines:
a) All plastic parts may be wiped with CaviWipes™ following the direction on

the package. A quaternary ammonium compound product like CaviCide™/
CaviWipes™ or similar is recommended (containing 0% alcohol or less).

b) Do not use: Denatured alcohol, Lysol®, phenol, ammonia complex or iodine

complex solutions.

c) Wipe, do not spray, solution onto plastic parts. Prevent liquids from

entering openings on unit.

CAUTION:

Do not immerse the plastic parts in solutions. Use of solutions

other than those recommended may damage plastic parts and will void product
warranty. This unit is not autoclaveable.

INFECTION CONTROL MEASURES

In order to prevent cross-contamination, a disposable plastic sleeve must be

used over the Demi with each use.

WARRANTY

Kerr hereby warrants that for a period of two years (1 year for batteries) from the date
of purchase, this instrument shall be free from defects in material and workmanship
and will perform satisfactorily under normal use and service.
To register your warranty, complete the online warranty registration within 0 days of
purchase at www.kerrdental.com/warranty. If multiple units have been purchased, fill
out one registration form per unit. Please have your dealer invoice available. You can
also register your warranty by calling 1.800.KERR.1, (1.800.57.71).
In the event of a breach of this warranty, Kerr’s liability is limited, at Kerr’s option, to
replacement of the defective product or part therof, or reimbursement of the actual
cost of the defective product. In order to take advantage of this limited warranty, the
defective product must be returned to Kerr. In no event shall Kerr be liable for any
indirect, incidental, or consequential damages.
EXCEPT AS EXPRESSLY PROVIDED ABOVE, THERE ARE NO WARRANTIES, BY KERR,
EXPRESS OR IMPLIED, INCLUDING WARRANTIES WITH RESPECT TO DESCRIPTION,
QUALITY, OR FITNESS FOR A PARTICULAR PURPOSE.
THE WARRANTY DOES NOT APPLY TO ANY DAMAGE OR DEFECT CAUSED BY THE USER’S
FAILURE TO FOLLOW THE INSTRUCTIONS FOR USE OR OTHER USER ERROR IN OPERATING
OR MAINTAINING THE INSTRUMENT. ALTHOUGH KERR OFFERS SERVICES TO REPAIR
INSTRUMENTS AND PROVIDES REPLACEMENT PARTS AFTER THE EXPIRATION OF THE
WARRANTY, KERR ONLY GUARANTEES THE AVAILABILITY OF SUCH SERVICES AND
REPLACEMENT PARTS FOR TWO YEARS AFTER THE INSTRUMENT MODEL HAS BEEN
DISCONTINUED.