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기술참고자료/경광등
Selection of Signal Light
The selection of a visual signal transmission equipment requires the consideration of its validity according to situations and environments.
  • In case that an area surrounding Signal Light as installed is dark or bright
  • In case that the distance of signal transmission should be large or that the distance is small but needs to be highly visible
  • In case that Signal Light should be economically efficient although its life span is short or that the light should be long in life span although it is highly priced
  • In case that Signal Light is influenced by bad environments such as high vibration or shock or that the light is warranted its pre- determined life span under relatively stable environments
  • n case that any instant damage to the source(electric bub) of Signal Light greatly influences work under way or safety, or dose not
According to these cases, Signal Light should be selected differently in type. The convenience and economic efficiency of the maintainance of the light should be also considered.

In general, the selection of Signal Light is recommended to consider the followings
  • Purpose in Use
  • Signal Transmission Distance
  • Environment
  • Economical Efficiency
  • Easiness of Repair & Maintenance
Light Source of Signal Light
1. Electric Bulb
Electric bulb is a light emitter that utilizes a reflective temperature formed by the current flowing through the filament. Filament is a coil type of tungsten lines. An inactive gas(i.e. alcohol) is injected into the bulb made of glass. Such gas injection bulb has general characteristics as follows.
  • 1) When the used voltage of the electric bulb is lowered by 10% than the rated voltage, the life span of the bulb extends by four times and consumption power goes down to 85% while luminosity(brightness) decreases by about 30%.
  • 2) When the used voltage of the electric bulb goes up by 10%, the life span of the bulb sharply decreases to 30% and consumption power increases by 10% while brightness enhances by about 40%. The standard life of an ordinary electric bulb is 1,000 to 1,500 hours.
2. LED
LED is a radiating element whose operation is made through putting the current into the PN connection of a special semiconductor. The special semiconductor has a type of GaAs or GaP which has been studied for electricity-optical conversion. Like the life of ordinary semiconductors, that of the special semiconductor is influenced by excessive voltage or a peripheral temperature, but longer for the filament doesn't become burnt and thin, has no mechanical wear and has a strong resistance to vibration or shock with no need of a special earthquake-proof structure. The standard life of LED is about 20,000 to 25,000 hours.
3. Xenon Lamp
Xenon Lamp is a fresh one that radiates a high output of light at a moment using a relatively high energy put into the lamp for a short time. The lamp needs the momentous input of enormous power to make an extremely high intensity of radiation in contrast to continuous radiation lamps. Xenon Lamp has Xe gas injected because of convenience in production(selection of materials) and in use(low in radiation voltage). The lamp was named after the gas.

Xenon Lamp is excellent in earthquake proofness because it can be fixed with the same condition ensured. The spectacle distribution of the visibility part of the lamp is similar with that of sun light. The way of radiation by Xenon Lamp is the same as that by the strobe of a camera, ensuring high visibility even under a bright peripheral environment.
4. Comparison of Life Spans, Brightness and Economic Efficiency in Accordance with Types of Light Source
※ The comparison is made for general characteristics of Signal Light, or self-life,luminosity and economic efficiency each of which is basically set to 100 in value.
  • The strobe type of Signal Light is more advantage in luminosity and the bulb lighting/flickering type in economic efficiency.
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B/BF - Selection of Signal Light
B/BF-Electric Bulb Lighting/Flickering Types employ a filament bulb as the light source whose radiation is distributed through a spectral globe. The lamp emits light widely because it is on point light basis. Cut in the form of a spectrum, the globe allows the non-reduction and more consistency of brightness at the surface of radiation. It is very suitable for calling attention in a short distance rather than a long one.

Electric Bulb Lighting Type(B Type) lights up simultaneously with power-up and lights off by the user's operation of the outside contact point. The other type(BF Type) flickers 80 to 100 times per minute with a control substrate for flickering built-in, so there is no need of contact point outside.
R - Bulb Revolvion Type
Electric Bulb Rotation Reflector Type is most often employed by ordinary warning lights whoseelectric bulb radiation is reflected and distributed through a rotation reflector.

With the reflected, nearly horizontal rays added, the radiation as distributed is stronger than the light of Electric Bulb Lighting/Flic- kering Type.
Thus R-Electric Bulb Rotation Reflector Type is effective in clearly transmitting signals to a distant place. The type needs no light istribution because it can be rotated, and its globe is transparent instead in the form of a spectrum.
L/LF - LED 점등/점멸형
The light of LED usually goes straight be- cause its extension angle is within about 30 degrees. L/LF-LED Illumination/Flickering Types use a group of small-sized, high- brightness LEDs as a strong light source whose radiation is projected through a spectral lens. Currently, the light brightness of the types is being steadily improved as LED technologies are developed, upgrading the types-based visibility.

LED Lighting Type(L) lights up simultaneously with power-up and lights off by the user's operation of the outside contact point. The other type(LF) flickers 80 to 100 times per minute with a control substrate for flickering built-in, so there is no need of contact point outside.
LR - LED 반사경 회전형
LED Rotation Reflector Type operates in principle by way of spreading the light of high-brightness LED through a right rotation reflector, so its globe is transparent instead in the form of a spectrum. The signal light of LED is difficult to be distributed for it originally tends to go straight. To cope with this problem, the type here makes the signal light radiated through a flat rotation reflector by having several LEDs arranged over the total surface of radiation by the reflector.

LED signal light is more advantageous in a room condition than outside because it is absorbed by the sun light. Therefore, it is effective in checking signals in a short distance.
S - 크세논램프 스트로브형
Globe employs Electric Bulb or LED lighting/flickering types. S-Xenon Lamp Strobe Type emits a very strong flash by using Xenon Lamp a light source which generates a high output of light in a moment.

Xenon Lamp flashes 80 to 100 times per minute, but cannot be kept lit up. The lamp is classified into the sub- types of a single and two and three consecutive flashes according to the importance of signals.

The spectacle distribution of the visibility part of the lamp is similar with that of sun light. The way of radiation by Xenon Lamp is the same as that by the strobe of a camera, ensuring high visibility even under a bright peripheral environment.
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Loudness(dB) of Sound
The strength of sound(sound volume) varies according to the amplitudes of the sound wave. Sound is heard high when the amplitude of the sound wave is high. Pronunciation devices such as piano show differences in the feeling of sound according to whether they are pla- yed with power or not. The differences is attributed to the strength of sound whose physical standard unit is a sound pressure level, that is, decibel(dB).
Decibel(dB) The sound pressure level of a low sound as just detectable is about 10 million times as low as that of a high sound which makes us feel a pain.
Such big difference is very difficult to be treated as a absolute unit. Unlike the scale of a ruler, the feeling of sound is related with the changed proportion of sound pressure level. In other words, the use of a measure saying what times of the initial level of sound pressure is better consistent with our feeling of sound. The standard unit of the measure is decibel(dB).
Therefore, dB is not an absolute unit but a proportion of difference between a specific value and a measured sound volume. Level of Sound Pressure(LP) = 20 log (p/p1) (dB) Like in the equation, the twice of a sound is 6dB in size, the triple is 9dB, the four times is 12 and the six times, 20. The increase of sound size is similar with that of a stereo volume. In general, the sound size which may call our attention is at least 80dB or over. Our Signal Phone makes an output from 80 up to 130 dB.
소리의 높이
High or low sound is a feeling depending on the vibration number of the sound wave per second. When the vibration number is large, the sound is heard high while when the num- ber is small, the sound is heard low.
The standard unit of vibration number is Hz. Man's ears can hear 20 to 2000Hz, the range of audible sound. The height of sound is related with the vibration number of the sound wave, but not proportionate to the number. When vibration number becomes double, it is described that the height f sound becomes one octave higher than its initial value, not that the height of sound become double.

The height of sound(frequency) is based on a principle like in paino keys whose sound becomes higher as they proceed to the right.

Our Signal Phone has its own frequency band on which warning sound, alarm, melody and vocal signal proceed in order. The warning signal is highest in frequency(high sound) and the vocal signal, lowest(low sound).
소리의 음색
Timbre is defined according to differences among momentary changes in the wave form (over tone, harmonics), based on the proportion of high-frequency components of the sound, and sound volume. The reason why the sound of the piano is different from that of the violin despite equal in strength is because the two instruments are different with each other in timbre. This also explains that there are differences in voices among individuals and that birds' singing and tigers' roaring can be discriminated.

Passing through the prism, the sun light is divided into rainbow colors. This suggests that the sun light consists of several different colors(or, several dif- ferent numbers of vibration). This is similar in case of sound. Sign waves can be regarded as sound materials. The timbre of a sound depends on the size of the sign wave for the sound.
소리의 감각
The felt size of sound is not equal to the physical strength of sound(dB). Even sounds whose physical strength is equal are differently heard by man's ears in case that they are different in height(vibration number, frequency). A sound whose frequency is high is more stressful to the ark shell and louder to the ears than that whose frequency is low.

Thus the felt size of sound increases as the strength(dB) and height(vibration number, frequency) of sound become high. In other words, the size of sound goes up when the vibration number and amplitude of sound increase.

For our some products making sounds in equal size, or 115dB, the size of warning sound, whose frequency is high, is felt largest while that of vocal signal, whose frequency is low, smallest.
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Kinds of Sound Tone
20 kinds of sound tone are available with our product and the details is as below diagram.
음색의 종류 테이블
음색번호 음색 듣기
SND01 Fire.A-ANG(WAIL)Sound
SND02 Emergency WA-U(YELP)Sound
SND03 Ambulance PI-PO(HI-LOW)Sound
SND04 Abandon Alarm
SND05 Machunery Fault(PI-PI-PI-PI Short Interval)
SND06 High-Expansion Foam Release(PI-Continuous)
SND07 General Alarm-Long PI after 7 Short PI
SND08 Sweet Home
SND09 For Elise
SND10 Sukoos Waltz
SND11 Piano Sonata
SND12 Turkish March
SND13 The Magic Flute
SND14 Badinerie
SND15 Pineapple Rag
SND16 Beep. intermittent
SND17 Door Chime
SND18 Phone Ring Sound
SND19 PI.PI.PI.PI. Short Interval
SND20 Tripping Bead Sound
Tripping Bead Sound
경고음 7 가지의 음색은 제품에 내장된 스위치를 통해 아래와 같이 8 종류의 5채널 사양으로 조합할 수 있습니다.
음색의 종류 테이블
음색조합 번호 SWITCH ON/OFF 음색구성(5ch)
123 ch1 ch2 ch3 ch4 ch5
NO1 Fire.A-ANG
SND01 		 Emergency
WA-U
SND02 		 Ambulance
PI-PO
SND03 		 Machunery
Fault
SND05 		 High-Expansion
Foam Release
SND06 
NO2 Fire.A-ANG
SND01 		 Abandon
Alarm
SND04 		 Machunery
Fault
SND05 		 High-Expansion
Foam Release
SND06 		 General Alarm
-Long PI
SND07 
NO3 Fire.A-ANG
SND01 		 Emergency
WA-U
SND02 		 Abandon
Alarm
SND04 		 Machunery
Fault
SND04 		 High-Expansion
Foam Release
SND05 
NO4 Fire.A-ANG
SND01 		 Ambulance
PI-PO
SND03 		 Machunery
Fault
SND05 		 High-Expansion
Foam Release
SND06 		 General Alarm
-Long PI
SND07 
NO5 Emergency
WA-U
SND02 		 Ambulance
PI-PO
SND03 		 Abandon
Alarm
SND04 		 Machunery
Fault
SND04 		 High-Expansion
Foam Release
SND05 
NO6 Fire.A-ANG
SND01 		 Emergency
WA-U
SND02 		 Ambulance
PI-PO
SND03 		 Abandon
Alarm
SND04 		 General Alarm
-Long PI
SND07 
NO7 Fire.A-ANG
SND01 		 Ambulance
PI-PO
SND03 		 Abandon
Alarm
SND04 		 High-Expansion
Foam Release
SND05 		 General Alarm
-Long PI
SND07 
NO8 Emergency
WA-U
SND02 		 Ambulance
PI-PO
SND03 		 Abandon
Alarm
SND04 		 Machunery
Fault
SND04 		 General Alarm
-Long PI
SND07 
The 20 kinds of sound tone can be used for our 32 types of combination with 5 channels each as following
by using built-in switch.
음색의 종류 테이블
음색조합 번호 SWITCH ON/OFF 음색구성(5ch)
123 ch1 ch2 ch3 ch4 ch5
NO1 Sweet Home
SND08 		 For Elise
SND09 		 Sukoos Waltz
SND10 		 Piano Sonata
SND11 		 Turkish March
SND12 
NO2 Beep. intermittent
SND16 		 Door Chime
SND17 		 Phone Ring Sound
SND18 		 PI.PI.PI.PI. Short Interval
SND19 		 Tripping Bead Sound
SND20 
NO3 Sweet Home
SND08 		 Piano Sonata
SND11 		 The Magic Flute
SND13 		 Door Chime
SND17 		 PI.PI.PI.PI. Short Interval
SND19 
NO4 The Magic Flute
SND13 		 Badinerie
SND14 		 Pineapple Rag
SND15 		 Sweet Home
SND08 		 For Elise
SND09 
NO5 Sukoos Waltz
SND10 		 Piano Sonata
SND11 		 Door Chime
SND17 		 Phone Ring Sound
SND18 		 Tripping Bead Sound
SND20 
NO6 Sweet Home
SND08 		 Emergency WA-U(YELP)Sound
SND02 		 Beep. intermittent
SND16 		 Door Chime
SND17 		 Phone Ring Sound
SND18 
NO7 Sweet Home
SND08 		 Piano Sonata
SND11 		 Emergency WA-U(YELP)Sound
SND02 		 Door Chime
SND17 		 PI.PI.PI.PI. Short Interval
SND19 
NO8 Piano Sonata
SND11 		 Emergency WA-U(YELP)Sound
SND02 		 The Magic Flute
SND13 		 Beep. intermittent
SND16 		 Phone Ring Sound
SND18 
음색의 종류(Kinds of Sound Tone)
Our standard product is basically produced with 4 kinds of sound tone combinations, 5 WS(warning sounds),
5WP(special warning sounds), 5 WM(warning melodies) and 5 WA(warning alarms) as following.
Users can choose one of them for their purchasing.
음색의 종류 테이블
구분 주요 내장음 채널 음색 듣기 음색조합번호
WS 5 Warning Sounds ch1
ch2
ch3
ch4
ch5		 Fire.A-ANG
Emergency WA-U(YELP)Sound
Ambulance PI-PO(HI-LOW)Sound
Machunery Fault
High-Expansion Foam Release



NO1
WP 5SP
Warning Sounds 		ch1
ch2
ch3
ch4
ch5		 Fire.A-ANG
Abandon Alarm
Machunery Fault
High-Expansion Foam Release
General Alarm-Long PI after 7 Short PI



NO2
WM 5 Melodies ch1
ch2
ch3
ch4
ch5		 Sweet Home
For Elise
Sukoos Waltz
Piano Sonata
Turkish March



NO3
WA 5 Alarms ch1
ch2
ch3
ch4
ch5		 Beep. intermittent
Door Chime
Phone Ring Sound
PI.PI.PI.PI. Short Interval
Tripping Bead Sound



NO4
음색 조합(Combinations of Sound Tone)
Voice signals(including standard melody and alarm) can be recorded and reproduced by using a microphone.
Voice signal requires six second memory time per channel. Up to three channels can be used for voice signal memory. Reproduction signal starts its operating by the external contact switch. When switching signal is given one time, voice signal is reproduced until the time of message termination. The signal reiterates its reproduction when switching signal continues.
음색의 종류 테이블
음색번호 음색 듣기 듣기
WV 3 Voice Signals S
R
A

D		 Direct Recording and inputting by Users
This company records and inputs message as wanted by users
Users designate message from its list kept by this company which in turn
inputs the designated massage(see the message list)
Users supply taped message to this company which in turn inputs the messages
WVS형(사용자 녹음 입력형)사용법 (INstruction to Use of WVS Type-Recording and Inputting by Users)
1) WVS type is equipped with a jack with its body to which microphone can be connected.

2) Recording/Reproduction switch keeps the recording mode when it is on and the reproduction mode when it is off.

3) The recording and inputting of message operate immediately upon being con- nected to jack and channel switch-on as wanted. The amount of each message should not exceed the specific time per each voice signal (6 seconds).
(Otherwise, the message is overlapped that of next voice signal.)
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For the selection of Explosion-Proof Product,it is important to study and check carefully such factors as the kind of explosion-proof structure,temperature regulation,kind of gas and vapour being used etc before final decision.
Please refer to below information on explosive gases, vapours and temperature regulated by IEC(International Elec- trotechnical Commission) and KS(Korean Industrial Standards) for your selection of the explosion-proof product.
IEC Regulation
음색의 종류 테이블
Classification of Protection Structure Degrees of Protection
I methane(firedamp)
IIA ammoniaacetoneindustryal methane
ethyl methyl ketoneblast furnace gasmethyl acetate
carbon monoxideethyl acetatepropane
n-propyl acetatebutanen-butyl acetate
pentane amylacetatehexane
chloroethyleneheptane methanol
iso octaneethanoldecane
iso butanolbenzeneamyl alcohol
xyleneethyl nitritecyclohexane
IIB buta-1,3-dieneethylenediethyl ether
ethylene oxidetown gas
IIC hydrogen
음색의 종류 테이블
온도특성
등급 최대 표면온도
T1

T2

T3

T4

T5

T6		 450℃

300℃

200℃

135℃

100℃

85℃
KS(JIS)규정
음색의 종류 테이블
발화도/폭발등급 보호의 정도
450℃/G1 300℃초과450℃이하/G2 200℃초과300℃이하/G3 135℃초과200℃이하/G4 100℃초과135℃이하/G5 85℃초과100℃이하/G6
I acetic acid
acetone
ammonia
benzene
carbon
monoxide
ethane
ethyl acetate
methane
methanol
propane
toluene 		acetic anhydride
amyl
acetate-iso
butane
1-butanol
ethanol
acetic anhydride
n-butylacetate
vinyl chloride
isobutyl alcohol
prophlene
epichlorohydrin 		gasoline
heptane
hexane
octanes
ethyl mercaptan
n-buthladehyde
tetrahydrofuran
crotonaldehyde
isoprene
1-pentanol 		acetaldehyde
methyl ether
ethylnitrite
ⅡA coal gas ethylene
ethylene oxide 		hydrogen sulfide hydrogen
water gas		 ethyl limit of
nitrate
ⅡB
ⅡC		 a





b



carbon
disulphide
c
acethylene



< Type of Explosion-
Proof Structure >
  • Flameproof Type
    Oil-Immersed Type
    Pressurized Safety
    Increased Safety Type
    Intrinsic Safety Type Special Type
  • d
    o
    f
    e
    i
    s
< Sign Application- Example >
  • d
  • General protection structure of the instrument is flameproof type
  • 2
  • Can be applied to the gases and vapours of explosion class 1,2
  • G4
  • Can be applied to the gases and vapours of ignition temperature G1,G2, G3 and G4
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055-328-1111contact us Address : 178-1, Ugye-ri, Sangdong-myeon, Gimhae-si, Gyeongsangnam-do, KOREAmore COPYRIGHT 2010E BY QLIGHT CO.,LTD. ALL RIGHTS RESERVED.