Philips HF3462 User Manual

Introduction

This appliance helps you wake up feeling fitter and more energetic. It creates a summer dawn
experience that makes awakening and getting up easier.The light intensity slowly increases to the
chosen level during 30 minutes. Light reduces the level of the sleep hormone melatonin and
increases the production of the cortisol hormone that makes you feel more energetic when you
wake up.Youcan have the appliance wake you up by light only or by light and sound.The appliance
can also be used as a reading lamp.

Light and the biological clock

Exposure to light regulates the biological clock that controls the body's circadian rhythms.

The melatonin level rises in the evening, preparing our body for sleep and lowering the body
temperature.The light in the morning stimulates the secretion of the hormone cortisol, which makes
us awake and alert. Optimally, the circadian rhythms are in sync with our sleep-wake rhythm.
Disturbed sleep and circadian rhythms can severely impact our health, performance and productivity.
In autumn and winter. when the days are shorter and darker. many people experience tiredness anc

need more sleep. Lack of energy and trouble to get up in the morning are common symptoms of
the winter blues. Other symptoms may be unexpected mood changes, concentration problems ana
a craving for food rich in fattening carbohydrates. Some people may even develop a serious
depression (seasonal affective disorder or SAD), which disappears when spring comes.

The effects of dawn simulation

Hypersomnia is associated with a phase delay of the circadian rhythm. The PhilipsWake-up Light
regulates the circadian rhythm during the last half hour of sleep. In the early morning hours, our eyes
are more sensitive to light than when we are awake. During that period, the relatively low light Ie
of a simulated natural sunrise are sufficient to phase-advance our biological clock, to suppress the
melatonin production and to elevate the cortisol level upon awakening. Clinical studies have show:'
that regular use of a dawn simulator can alleviate even the severest symptoms of the winter blues.
People who use the Wake-up Light wake up more easily and feel more energetic.Their overall
mood, productivity and ability to concentrate are improved. With the PhilipsWake-up Light,you cc..-
set the light level that corresponds to your light sensitivity for optimum dawn simulation.
For more information about the health benefits, see www.philips.com. search word "Wake-up Lign-

e:

o

Base

o

Vents

e

Lamp housing

C!)

Top control panel
1 SNOOZE/SCREEN BRIGHTNESS CONTROL button
2

-:+:-X

button (light on/off)

3

<.!)

button (light and sound on/off)

4 ~ button (sound off)

C) 100W lamp (HF3462, HF3461) or 75W lamp (HF3451)

Lamp replacement hatch

CD

Bottom control panel
1 .:.:-wheel (turn to set the light intensity)
2 ALARM button
3 RADIO button (HF3462, HF3461 only)

4 QUICK CHECK button
5 •• wheel (turn to set volume)

CD

Display section

1

.6.

button

2 Time indication

3 0 button (to set clock time)

4 0 button (to set alarm time)

5 Natural pond sound symbol (HF3462, HF3461 only)

6 Natural sea sound symbol (HF3462, HF3461 only)

7 Natural forest sound symbol

8 Gentle beep symbol

9 Radio symbol (HF3462, HF3461 only)

10Tbutton

11 Radio frequency indication (HF3462, HF3461 only)
12 Light level indication (visible when light level is adjusted)

13 Alarm time indication
14 Sound level indication (visible when sound level is adjusted)

o

Reset buiton

Note:The HF3462/30, HF3462/20, and the HF3462/1O are technical the same, they only differ in
colour. Becauseofthis the three versions will simply be called HF3462 in the restofthis user manual.

Important

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Read this user manual carefully before you use the appliance and save it for future
reference (Fig.2).

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This appliance is double-insulated according to Class II (Fig.3).

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This appliance meets the requirements of the European Medical Device Directive MDD 93/42/
EEC.

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Chet;:k if the voltage indicated on the appliance corresponds to the local mains voltage before
you connect the appliance.

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The appliance is suitable for mains voltages of 230'1.

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Ifthe mains cord is damaged. you must have it replaced by Philips. a service centre authorised
by Philips or similarly qualified persons in order to avoid a hazard.

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Do not subject the appliance to heavy shocks.

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Water and electricity are a dangerous combination. Do not use this appliance in wet
surroundings (e.g. in a bathroom or near a shower or swimming pool).

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Do not let water run into the appliance or spill water onto the appliance.

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This appliance is not intended for use by persons (including children) with reduced physical.
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.

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Children should be supervised to ensure that they do not play with the appliance.

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Place the appliance on a stable, level surface and make sure there is at least 15cm free space
around it and 40cm above it to prevent overheating (Fig.4).

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Do not use the appliance at room temperatures lower than 10°C or higher than 35°C.

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Make sure the vents in the base and on top of the appliance remain open during use.

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Regularly remove dust from the inside of the appliance with a dry cloth, as accumulated dust
close to a powerful lamp presents a potential fire hazard. See chapter 'Cleaning and
maintenance' for more details.

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The appliance has been fitted with an automatic protection against overheating. Ifthe
appliance is insufficiently cooled (e.g. because the vents are covered). the appliance switches
off automatically. Remove the cause of overheating, unplug the appliance and let it cool down
for approx. 20 minutes. Then switch the appliance back on by plugging it in again.

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Let the appliance cool down for approx. 15 minutes before you clean or store it.

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Never use the appliance when the lamp housing is damaged. broken or missing.

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We advise you to set the light intensity for waking up to a setting between 9 and 20 (for the
HF3451 with 75W lamp) or between 7 and 15 (for the HF3462. HF3461 with 100W lamp).
These settings correspond to light intensity levels of 100 to 300 lux.The correct setting

depends on your light sensitivity and will have to be determined by yourself. It is possible to
select a higher or lower setting. See chapter 'Using the appliance' for more details. Iflight level
20 of the HF3451 is not high enough, we advise you to move the appliance closer to the bed.

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Ifyou wake up too early or with a headache, reduce the light level.

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Ifyou share a bedroom with someone else, this person may unintentionally wake up from the
light of the appliance, even though this person is further removed from the appliance.This
phenomenon is the result of differences in light sensitivity between people.

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Ifyou start haVingtrouble waking up again, this is possibly due to a decrease in the lamp's

light output that occurs after some time. In that case, you can increase the light level or

replace the lamp.

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Consult your doctor before you start using the Philips Wake-up Light ifyou have suffered
from or are suffering from a serious depression.

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Do not use this appliance as a means to reduce your hours of sleep. The purpose of this
appliance is to help you wake up more easily. It does not diminish your need for sleep.

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Always replace the lamp with a Philips 75W E27 SOFTONE softwhite 230VT55 (HF3451) or •
a Philips 100W E27 SOFTONE softwhite 230VT55 lamp (HF3462, HF3461).

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The appliance has no on/off switch.To disconnect the appliance from the mains, remove the
plug from the wall socket.

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Ifthe appliance is used in an industrial area and/or near a power station, it may occur that,

under certain circumstances, the lamp goes off after it has come on. This does not have an

adverse or harmful effect on the safe functioning of the appliance the next time it is used.

Electromagnetic fields (EMF)

This Philips appliance complies with all standards regarding electromagnetic fields (EMF).Ifhandled

properly and according to the instructions in this user manual, the appliance is safe to use based on
scientific evidence available today.

Installation

o

Before first use, open the hatch in the back of the appliance (see chapter 'Replacement') and
screw the lamp into the lamp holder.

D

Place the appliance at 40-50cm from your head, for example on a bedside table (Fig.5).

D

Put the plug in the wall socket.

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The time on the display starts to blink and arrows appear above and below the time to

indicate that the clock time has to be set (Fig.6).

Note:Ifthe display doesn't light up after you have pluggedinthe appliance, press the reset buttononth
bottomofthe appliance.

Setting the clock time

o

Use the'" and the'" buttons to set the time.

D

Hold the button down longer to put the time forward or backward more qUickly.

Note:After you have set the time for the first time, you havetopress the 'set time' button before you ca
adjust the time again. The timeonthe display startstoblink and arrows appear above and below the

timetoindicate that the clock time can be

D

When you have set the correct time, press the 'set time' button to confirm the time (Fig.

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The time on the display stops blinking and the arrows disappear.

Note:Ifyou do not confirm the time, the blinking stops and the arrows disappear after 10 seconds.

This indicates that the time has been

set

set

T