Date: Wed, 11 Dec 2013 17:39:56 -0800
Reply-To: Scott Daniel <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel <scottdaniel@TURBOVANS.COM>
Organization: Cosmic Reminders
Subject: Re: 12v programmable timer
In-Reply-To: <52A90567.1070609@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
how about it's connected to a motion sensor and when any raccoons come
snooping up on your van at Oh Dark Hundred Hrs ..a light goes off and
spooks them away ..
or ..a camera shoots their picture.
come to think of it ...forget the common term ..Deer Cams perhaps .
people leave them attached to a tree out in the woods...
some motion...like any animal moving in front of it , and it snaps their
picture.
or ..it turns on your coffee brewer ..
and the aroma in a while wakes you up. That would be very neat I think.
which of course is only a 'timer function'
not a 'get X in' and 'Y comes out', function like you are trying to find
an application for.
You have automatic fuel mixture control on your van of course.
No choke knob ..so it's not 'all' manual control .
there's more I'm sure ....a miles counter sets off your 02 reminder
light. More yet too if we think about it enuf.
scott
On 12/11/2013 4:37 PM, Rocket J Squirrel wrote:
> My 12V timer arrived. The instruction sheet says that the "POWER"
> terminals can accept AC or DC. Since there is no mention of polarity, I
> I reckon that we got a full wave rectifier there to convert AC to DC.
> Obviously the internals run on DC. ICs and suchlike.
>
> When it is switched on and off, there is an audible "click" from within
> the unit. So we have relay contacts. They can handle DC or AC.
>
> Now that I have satisfied my curiousity, I admit that I am baffled as to
> what I can do with this thing. The price was right, but it sits there,
> challenging me.
>
> Everything in my Westy is under manual control, and I like it that way.
> I cannot think of anything I'd like to have turn on or off on a schedule
> when camping.
>
> Ideas are invited, but that might be a Friday subject.
>
> --
> Jack "Rocket j Squirrel" Elliott
> 1984 Westfalia, auto trans,
> Bend, Ore.
>
> On 11/25/2013 01:36 PM, mark drillock wrote:
>> I think the confusing text is due to the fact that they also sell them
>> that run on AC power. You choose 110v or 220v when you order one of
>> those, about the same price as the 12v one. The markings on the case in
>> the 12v version photos match what you would expect for the AC models. I
>> would expect the 12v one to be marked for input polarity. Photo mixup
>> or????
>>
>> Mark
>>
>> Rocket J Squirrel wrote:
>>> The info is kind of vague. The instructions say,
>>>
>>> 1. Shown on the Instruction Manual is "12V Wiring diagram".
>>>
>>> My read: The instruction manual contains a 12V wiring diagram. One
>>> would
>>> hope so for a device called "DC 12V Mini LCD Digital Microcomputer
>>> Control Power Timer Switch"
>>>
>>> 2. The "POWER" should connect DC 12V power.Never connect any other
>>> power
>>> on.The other side can depending on your need.
>>>
>>> I read this to mean that the power terminals want to be connected to
>>> 12VDC only. The "other side" (switched side) can be something else.
>>> Like
>>> DC or AC 50/60Hz. Note that the photo of the backside of the unit shows
>>> an AC symbol connected to the power terminals. This apparently to add a
>>> bit of whimsy to the proceedings.
>>>
>>> 3. If want to connect 0-250V electrical equipment.Wiring is
>>> depending on
>>> "0-250V Wiring diagram".
>>>
>>> There is another diagram illustrating 0-250V (presumably AC as that
>>> is a
>>> typical spec AC voltage). Suggesting again that the switched current
>>> can
>>> be DC or AC.
>>>
>>> 4. No matter which Wiring diagram.The "POWER" only allow to connect DC
>>> 12V power.
>>>
>>> Okay, okay, we got it: only connect 12VDC to the "power" terminals. Pay
>>> no attention to the AC symbol on the case. We've fired the art
>>> director.
>>>
>>> 5. Power"-" is not meaningful,custom-made voltage is DC12V.
>>>
>>> Uh . . . what?
>>>
>>> Me, I'm voting for a relay inside the thing.
>>>
>>> --
>>> Jack "Rocket j Squirrel" Elliott
>>> 1984 Westfalia, auto trans,
>>> Bend, Ore.
>>>
>>> On 11/25/2013 11:14 AM, Al Knoll wrote:
>>>> Collaboration is so kewl. Troll and ye shall find. Sounds to me like
>>>> a metallic contact aka relay system in the box. Quite suitable as a
>>>> driver for a high current buffer relay like the 40A ones. Thanks for
>>>> the clarification. Now to disembowel the first one and see whats in
>>>> there.
>>>>
>>>> However for most DC applications, my vanagon is mostly DC, one of
>>>> these could be pretty kewl. To turn off The Greatful Dead music after
>>>> retiring or turn on Jimi and The National Anthem in the morning.
>>>> Applications abound.
>>>>
>>>> Pensionerd.
>>>>
>>>>
>>>>
>>>> On Mon, Nov 25, 2013 at 10:32 AM, Ryan Press <ryan@presslab.us> wrote:
>>>>> It probably has a TRIAC in it, and not an SCR. The SCR would only
>>>>> work on half of the AC cycle, so there would need to be two devices.
>>>>>
>>>>> With a TRIAC it will only work with an AC load. So if indeed this
>>>>> device uses a TRIAC and does not use a mechanical relay, it's
>>>>> unsuitable for a DC load. Once the DC load turns on, it would never
>>>>> turn off unless the load was otherwise disconnected.
>>>>>
>>>>>
>>>>> Ryan
>>>>>
>>>>> On Sun, Nov 24, 2013 at 3:38 PM, Al Knoll <anasasi@gmail.com> wrote:
>>>>>> The amperage (current) spec is likely independent of the
>>>>>> voltage. It
>>>>>> generally has to do with the current carrying capacity of the SCR or
>>>>>> contacts that pass the current to the load. I suspect a working
>>>>>> limit
>>>>>> would be 150W.
>>>>>>
>>>>>> Looking up the current specifications knowledge database is left for
>>>>>> an interesting segue from the usual path.
>>>>>>
>>>>>> Pensionerd.
>>>>>>
>>>>>> On Sun, Nov 24, 2013 at 1:54 PM, Edward Maglott
>>>>>> <emaglott3@gmail.com> wrote:
>>>>>>> Yes, that's what it says. Now I notice it has no rating for DC:
>>>>>>>
>>>>>>> Contact Capacity: 16A(8)A,250V AC
>>>>>>> Resistance load: 16A
>>>>>>> Inductive load: 8A
>>>>>>>
>>>>>>> I wonder what it can handle in the 12vDC vanagon world? It's
>>>>>>> probably some kind of solid state switch I imagine, maybe it has
>>>>>>> a DC
>>>>>>> rating if you opened up the thing and looked around.
>>>>>>>
>>>>>>> Edward
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> At 03:50 PM 11/24/2013, Alistair Bell wrote:
>>>>>>>>
>>>>>>>> Edward,
>>>>>>>>
>>>>>>>> looks pretty neat, and it does switch up to 250V AC?
>>>>>>>>
>>>>>>>> alistair
>>>>>>>>
>>>>>>>>
>>>>>>>> On Nov 24, 2013, at 10:27 AM, Edward Maglott <emaglott3@GMAIL.COM>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Here's something I've been waiting to find for cheap for a long
>>>>>>>>> time. Could be used in the van for what??? Use your
>>>>>>>>> imagination. Maybe lights or fans that only need to come on
>>>>>>>>> automatically at certain times of day? Also thinking this
>>>>>>>>> could be
>>>>>>>>> great for use in solar applications on and off the van. It could
>>>>>>>>> disconnect a small inverter (mind the capacity of the contacts in
>>>>>>>>> this timer) from the batteries except when needed to avoid that
>>>>>>>>> idle
>>>>>>>>> drain.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>> http://www.banggood.com/DC-12V-Mini-LCD-Digital-Microcomputer-Control-Power-Timer-Switch-p-909362.html
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>> Edward
>>>
>
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