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4 Contraindications, Warnings and Precautions
Notice! If you plan to be away from home for more than 2 hours, carry an extra battery and/or the power supply with
you in case the battery you are using runs out. If you do not take a spare battery and/or the power supply you may have
a break in your treatment. Breaks in treatment may lower your chance to respond to treatment.
Notice! Make sure you have at least 12 extra transducer arrays at all times. This will last you until the next transducer
array shipment arrives. Remember to order more transducer arrays when there are at least 12 extra transducer arrays
left. If you do not order transducer arrays in time you may have a break in your treatment. Breaks in treatment may
lower your chance to respond to treatment.
Notice! Batteries may weaken over time and need to be replaced. You will know this has happened when the amount
of time the device can run on a fully charged battery begins to shorten. For example, if the low battery indicator light
flashes within only 1.5 hours from the start of treatment, replace the battery. If you do not have replacement batteries
when your batteries run out, you may have a break in your treatment. Breaks in treatment may lower your chance to
respond to treatment.
Notice! You should carry the Troubleshooting Guide (Section 26) at all times. This guide is necessary to ensure Optune
®
works properly. If you do not work the system correctly you may have a break in your treatment. Breaks in treatment
may lower your chance to respond to treatment.
Notice! Do not block the device vents located on the front and back of the Electric Field Generator. Blocking the
vents may cause the device to overheat and turn o, leading to a break in treatment. If this happens, unblock the vents,
wait 5 minutes and restart the device.
Notice! Do not block the battery charger vents located on the sides of the battery chargers. Blocking the vents may
cause the charger to overheat. This could prevent your batteries from charging.
Notice! Before using a transducer array, make sure its package is sealed by gently rubbing the package between
thumb and pointer finger on all four sides. The package should be closed on all sides. There should be no openings
in the package seal. If the package is not sealed, the transducer array may be damaged. A damaged transducer array
will not work properly and may cause the device to turn o.
Notice! The transducer arrays are for single use and should not be taken o your head and put back on again. If you
put a used transducer array back on your head again, it may not stick well to your skin and the device could turn o.
Contraindications, Warnings and Precautions
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