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5 Maintenance
5.1 Light output monitoring
1. Make sure that the LED aperture is clean and scratch-free; otherwise light output will
be reduced and may be insufficient for proper curing of the material.
2. The light intensity of SmartLite® FOCUS should be checked frequently to ensure ap-
propriate curing by using a commercially available radiometer. As radiometers differ
greatly, the following procedure is recommended.
3. Upon receipt of SmartLite® FOCUS check the light intensity with the radiometer of
your choice and record the value. This initial reading is for reference only, and may
not represent the actual light intensity.
4. For subsequent monitoring retest the light intensity with the same radiometer that
was used for the initial reference and compare it to the reference intensity.
5. If radiometer value drops below reference intensity, light efficiency can be verified
using the i•Cure. Place i•Cure on a sheet of paper on a flat surface. Choose i•Cure
segment according to step height required (please note that the step height should
be twice the curing depth to be confirmed). Fill with composite. Hold SmartLite®
FOCUS in close proximity to the upper aperture and cure. If the material on the
lower aperture has been cured (i.e. cannot be scraped off with a plastic spatula),
the curing depth according to ISO 4049:2009 equals half the chosen step height. If
i•Cure test is successful, SmartLite® FOCUS is ready to use.
6. Do not continue to use SmartLite® FOCUS if both light output is below reference
intensity and i•Cure test has failed.
5.2 Battery 2
• Battery is equipped with low self discharge technology resulting in a long operat-
ing life.
• Battery is pre-charged and ready to use upon purchase. Charging before first use
may improve initial operating time but is not mandatory.
• When the battery light flashes green 1.2 , the battery is charging. Upon com-
plete recharging, the battery light remains permanently green. The battery needs
approximately 3 hours to be fully recharged. SmartLite®FOCUS has a Smart Re-
charging Technology. Depending on battery status, SmartLite®FOCUS will auto-
matically choose between Automatic Quick Charging Mode (fast flashing green
light) and Standard Charging Mode (flashing green light).
• The SmartLite® FOCUS Automatic Quick Charging Mode allows a minimum of
5minutes operating time after 10 minutes recharging.
• When the battery light flashes yellow (fast) 1.3 , the battery needs to be re-
charged. At first occurrence approximately 2 minutes curing time remain for com-
pletion of the treatment. Light output is not reduced during this period. After this
period, the device switches off automatically and the battery light remains perma-
nently yellow indicating the need to recharge.
• If the battery pack 2 needs to be replaced, release battery pack by gently in-
serting a screwdriver into the hole at the lower back end of the handpiece and
push the battery pack outwards. Then use fingers to completely remove battery
pack (see Figure A4 and Figure A5 ).
4.3.3 Sterilization (optional)
The SmartLite®FOCUS Shields can also be autoclaved.
1. Steam autoclave SmartLite® FOCUS Shields at 134°C/2 bar = 273°F/29psi for
3minutes 30seconds.
SmartLite®FOCUS Shields can be autoclaved for up to 60 times.