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Author Topic: 24hr Light Timer  (Read 1916 times)
nicomambo
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« on: February 25, 2009, 12:30:05 PM »

Anyone know where I can buy a light timer?

Para automatic na mag-on/off yung ilaw at a specified time- ex. On 6pm- Off 5am.
May nabili ako analog timer sa ACE pero di accurate ang time-advanced masyado. So ang 24-hour cycle lumalabas 20 hours lang.

Maski kit ko bilhin ako na mag-asseble. Di ko lang alam san bibili. Thanks.
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« on: February 25, 2009, 12:30:05 PM »

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Monde
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bespren kita ^_^


« Reply #1 on: February 25, 2009, 12:40:10 PM »

sir cguro maadvise ko po na gamitin myo ung 555 timer monostable multivibrator state kung familiar po kayo d2, may mga formulas po related d2 para makuka nyo po ung on time and off time ng circuits.. you can simulate po sa bread board muna para magka idea kau sa desired output nyo marami sa search engines hanap n lang po kayo... Wink
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Monde
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bespren kita ^_^


« Reply #2 on: February 25, 2009, 12:55:40 PM »

sir nicomambo try nyo po mag basa basa d2 sa link n to about timer po may diagram din po jan included..

http://www.electro-tech-online.com/electronic-projects-design-ideas-reviews/89252-12hour-timer-using-two-555-timers.html
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SpongeBob
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« Reply #3 on: February 26, 2009, 11:59:46 AM »

ok rin yung nasa hardware na timer pumili ka lang ng magandang brand
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nicomambo
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« Reply #4 on: February 26, 2009, 10:07:58 PM »

Thanks sa replies!

Medyo nahilo ako sa diagram, hehe! Siguro for now last resort muna yun. Experience ko lang kasi sa ganyan mga kit na. Yung assemble nalang gagawin.

Yung nabili ko timer sa ACE, may nakita ako iba brand sa True Value, pero eksakto mukha nila. Pinalitan lang siguro ng sticker. Ayaw ko na i-try baka ganun din. Pina-palitan ko nga sa ACE yung nabili ko pero ganun pa din yung pinalit, advanced pa din oras.

Iniisip ko ngayon buksan yung timer na nabili ko, baka may kailangan lang ipalit/idagdag na pyesa sa circuit para umayos ang oras?

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ahlburuto
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« Reply #5 on: February 27, 2009, 09:56:04 PM »

Bakit di na lang photocell ang ikabit mo sa halip na timer? mas mura yun? At anung klaseng timer yung nabili mo sa ACE? di ba meron silang Analog at digital dun? Yun kasing gamit ko ngayon eh Digital. 500petot ku lang ata nabili sa ACE ang maganda naman dito eh meron syang 8 independent On and Off timer. Tiaka meron syang Built battery para sa clock nya. Ganito rin ba nabili mo?

BR
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nicomambo
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« Reply #6 on: February 28, 2009, 09:19:39 AM »

Di ko magamit photocell kasi minsan iibahin ko yung oras, di sya pang dilim lang.

Yung nabili ko analog, wala man lang brand. May bilog na iniikot para sa time. Problema ang bilis ng ikot, nauuna sa actual time.

Sir yung binili mo nase-set yung oras? Di ko nakita yan. Ang pinakita sakin na digital, 10 minute timer lang yata. Pero salamat, balik ako ACE baka alam ng ibang sales person.
 
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ahlburuto
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« Reply #7 on: February 28, 2009, 10:38:21 AM »

yes naset yung oras dun sa nabili ko sa ACE. di ko tanda ang pangalan. Di talaga maganda yung analog na yun. Yung application ko naman eh sa ref ko nilagay. bale ang purpose ko eh at 12mn hanggang 4am naka off yung ref, para makatipid ako. tamang tama sa application mo yun 24h timer kung me specific time ka na kelangan. Sa ACE Megamall ko yun nabili few weeks ago.....

br
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« Reply #8 on: March 03, 2009, 11:33:10 AM »

Baka di practical buksan yan analog timer.  and motor nyan sa loob ay synchronous motor dependent sa  cycle and AC. Baka naman may gear adjustment sa loob. That is the only way to adjust. Suspecho ko pang 50 hertz yan pinasa dto sa Pinas.  kaya mag advance yan.May circuit mas accurate using the IC 4060. Mayroon sa alexan. Google mo "timer+ 4060+, baka lumabas.Dito ako BF Homes, Pque. 8253867/09197726274.

BK
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nicomambo
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« Reply #9 on: March 13, 2009, 11:43:35 AM »

Suspecho ko pang 50 hertz yan pinasa dto sa Pinas.  kaya mag advance yan.
BK

BK tama ka 50 hertz nga lang yung timer! Kaya pala mabilis umikot. 
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bomboklat
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« Reply #10 on: May 17, 2009, 09:23:52 PM »

abangan mo lang sa ace bro baka out of stock lang ang digital timer nung nagpunta ka
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av973
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« Reply #11 on: May 17, 2009, 10:03:29 PM »

If I may add comment.

I might have the same with Tanochie. Digital timer branded as LEDTEC IT-88 priced by abt 500PHP.I think is this flexible enough to your need. 8 programmable setup/on-off sequences with day specific setting. Pwede daily... TThS... MWF... etc. pwede rin random...

I think...this is cost effective if ever ganyan application mo.

For analog types beware sa design specific for 50Hz. Experience ko na yan dati sa motorized "line sync" clock /timer. Error talaga pag ganamit mo sa 60Hz.

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insomartin
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« Reply #12 on: May 18, 2009, 12:10:53 AM »

actually may 24 hour timer with battery backup. 1500 sa mga signage stores, pwede din off kung weekends.
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av973
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« Reply #13 on: May 18, 2009, 10:02:01 PM »

Itong LEDTEC meron battery sa loob. Retained lahat ng setup mo even after pulling out of AC line. Clock is still active and can be setup as well. Itong sa akin working kahit out of AC line even after a month.
 
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nucleus
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« Reply #14 on: May 18, 2009, 10:19:04 PM »

merong binebenta ang alexan na digital timer 7 days 8 on 8 off ito
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« Reply #15 on: May 20, 2009, 02:42:35 AM »

merong binebenta ang alexan na digital timer 7 days 8 on 8 off ito
have you bought and tried one?
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nucleus
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« Reply #16 on: May 20, 2009, 02:50:14 AM »

have you bought and tried one?

ako po hindi kasi wala akong pambili Cheesy

pero yung radio station dito na lagi kong tinatambayan iyon ang gamit hehehe pag sapit ng 11:00 PM patay na ang power ng mga instruments at sa 6:00 AM naman ay kusa ng bubukas ang mga instruments
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ahlburuto
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« Reply #17 on: May 20, 2009, 08:24:22 AM »

For me mas convenient pa rin yung nabili ko sa ACE Hardware. Easy to program and use... Mura pa... I remember nung nasa Singapore ako eh gusto kong mabili yung ganung 24hour timer kaso ang problema eh iba yung socket nila. Buti na lang meron dito satin na ganung version, yun nga yung sa ACE...... Mura pa compared dun sa Singapore.....

Upto now gamit ko pa rin yung sakin at yun nga sa REF ko nilagay....

br
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roaglipay
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« Reply #18 on: July 28, 2009, 10:54:51 PM »

I have tried the analog and the digital 24hr timer. Meron sa ACE, Handyman, Raon (Quiapo). Ginamit ko yung analog (brand Ledtec) to turn on and off my ref and motion detector. Hindi ko kailangan ng super accurate na timer basta ma achieve ko na off ang ref ko ng at least 8 hrs or depende sa haba ng gusto ko programmable naman. Now if you want super accurate timer use the digital type. Medyo complicated ng konti ang pag program. Maganda ito dahil kahit na nag brown out hindi mawawala ang settings mo dahil may internal battery that would last for many years. Meron din ako IC type 555 pero para sa mga short time application lang ito.
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bravokilo
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« Reply #19 on: July 30, 2009, 12:38:48 AM »

if you can find a 24 hr quart clock,put a small mirror sa Hr hand. make an LED with photransistor on a strip of pcb, nakatakp[an from ambient light. IOtapat dun sa time gusto mo e-on. ganun din another one san mo giusto e-off.

BK
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