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Winedor fan assembly / shelf option

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A few pics of my fans (nothing special) but they are mounted to a cutting board from WalMart that was the perfect size for winedors with 14" wide shelves (kind of neat).

The black piece of velcro is for mounting the light ballast assembly.

The round blue thing is a Rosemount model 248 temperature transmitter and the long silver rod rod is a Platinum 100 Resistance Temperature Detector (I'm kind of a nerd).





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StogieNinja

Derek | BoM June 2014
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Looks nifty!

So is that temp sensor like what is used in an ETC, just more accurate?
 
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Looks nifty!

So is that temp sensor like what is used in an ETC, just more accurate?
Not sure what the ETC uses, but I would presume so.

For what we are doing, the 248 / Pt100 is overkill to say the least. In the world of process automation, it is a mid-tier offering.

Mine wineador is controlled by an industrial process automation distributed control system.

Like I said. I'm kind of a nerd.

Trout
 
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Looks nifty!

So is that temp sensor like what is used in an ETC, just more accurate?
Not sure what the ETC uses, but I would presume so.

For what we are doing, the 248 / Pt100 is overkill to say the least. In the world of process automation, it is a mid-tier offering.

Mine wineador is controlled by an industrial process automation distributed control system.

Like I said. I'm kind of a nerd.

Trout
And those terms for dummies mean ????


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Looks nifty!

So is that temp sensor like what is used in an ETC, just more accurate?
Not sure what the ETC uses, but I would presume so.

For what we are doing, the 248 / Pt100 is overkill to say the least. In the world of process automation, it is a mid-tier offering.

Mine wineador is controlled by an industrial process automation distributed control system.

Like I said. I'm kind of a nerd.

Trout
And those terms for dummies mean ????


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^^^+1 lol


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King Kill 33

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Now you just need that analog signal in a feed-forward control loop. I've only heard of the 385 100 ohm Platinum RTD, not sure of the characteristics of the one your using.


KK33
 
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Now you just need that analog signal in a feed-forward control loop. I've only heard of the 385 100 ohm Platinum RTD, not sure of the characteristics of the one your using.


KK33
I could, but I hit the easy button.

Simple discrete out triggered by hi temp (72 deg. f) turns on 120 VAC to wine chiller. Lo temp (67 deg. f) turns it off.

Timer turns on the fans for 1 minute every 100 minutes.

The same stuff everybody else does for a few hundred dollars I am doing with a system that lists for around 20K.

Why? Because I can.

Yes, it is a 385 (.00385 temperature coefficient), 248 is the model number of the TT.

Trout
 
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King Kill 33

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Now you just need that analog signal in a feed-forward control loop. I've only heard of the 385 100 ohm Platinum RTD, not sure of the characteristics of the one your using.


KK33
I could, but I hit the easy button.

Simple discrete out triggered by hi temp (72 deg. f) turns on 120 VAC to wine chiller. Lo temp (67 deg. f) turns it off.

Timer turns on the fans for 1 minute every 100 minutes.

The same stuff everybody else does for a few hundred dollars I am doing with a system that lists for around 20K.

Why? Because I can.

Yes, it is a 385 (.00385 temperature coefficient), 248 is the model number of the TT.

Trout
Nice, but if you are using a DCS, why not narrow that dead band a bit to give you tighter control? Haha, this nerdy, but no one ever talks instrumentation on here so I find it refreshing to talk about what I learned in trade school.


KK33
 
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Looks nifty!

So is that temp sensor like what is used in an ETC, just more accurate?
Not sure what the ETC uses, but I would presume so.

For what we are doing, the 248 / Pt100 is overkill to say the least. In the world of process automation, it is a mid-tier offering.

Mine wineador is controlled by an industrial process automation distributed control system.

Like I said. I'm kind of a nerd.

Trout
And those terms for dummies mean ????


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Which terms?

ETC is electronic temperature control. For people that live in warm climate and don't want their winedor to run constantly, it is a simple device, kind of like a light timer, that turns the wineador on and off based on temperature inside the wineador.

248 / Pt100 is short hand for a Rosemount model 248 temperature transmitter attached to a Platinum 100 Resistance Temperature Detector.

A Platinum 100 Resistance Temperature Detector is a sensor that produces a resistance (ohms) that changes based on increases or decreases in temperature.

The Rosemount model 248 temperature transmitter measures the resistance (it is really a fancy ohm meter) and creates an output. The output is a milliamp signal that is between 4 and 20 milliamps. In my case 4 ma = 0 deg. f and 20 ma = 100 deg. f, but the range of this transmitter / rtd combination is something like -350 to 1200 f (don't quote me on that part).

The 4 - 20 ma single is fed to an analog input card that has an a/d (analog / digiatal) converter that converts the signal to 1's and 0's. That signal is sent to a controller which executes a program, in my case, turns on and turns off the winedor based on temp, same as an ETC.

The controller is part of a larger system called a Distributed Control System. These are used to control industrial processes such as refineries, pharmaceutical production facilities, chemical plants, etc.

Clear?

Trout
 
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Now you just need that analog signal in a feed-forward control loop. I've only heard of the 385 100 ohm Platinum RTD, not sure of the characteristics of the one your using.


KK33
I could, but I hit the easy button.

Simple discrete out triggered by hi temp (72 deg. f) turns on 120 VAC to wine chiller. Lo temp (67 deg. f) turns it off.

Timer turns on the fans for 1 minute every 100 minutes.

The same stuff everybody else does for a few hundred dollars I am doing with a system that lists for around 20K.

Why? Because I can.

Yes, it is a 385 (.00385 temperature coefficient), 248 is the model number of the TT.

Trout
Nice, but if you are using a DCS, why not narrow that dead band a bit to give you tighter control? Haha, this nerdy, but no one ever talks instrumentation on here so I find it refreshing to talk about what I learned in trade school.


KK33
Oh, absolutely I could, and probably should.

But from electronics you know that (the initial act of) turning something on is the worse thing you can do. This is why light bulbs typically blow when you turn that light on.

In other words, I don't want to be constantly starting and stopping my wineador.

Now, if I could get my hands on a softstart or vfd....

FWIW, Michael Edelman of HCMCigarBeads tells me I should use 65 - 70. Initially my wineador was in a closet (poorly ventilated) and it ran constantly so I bumped it up a bit. Where it is now (game room), I really need to drop it back.

So thank you for making me think about this.

Trout
 
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Now you just need that analog signal in a feed-forward control loop. I've only heard of the 385 100 ohm Platinum RTD, not sure of the characteristics of the one your using.


KK33
I could, but I hit the easy button.

Simple discrete out triggered by hi temp (72 deg. f) turns on 120 VAC to wine chiller. Lo temp (67 deg. f) turns it off.

Timer turns on the fans for 1 minute every 100 minutes.

The same stuff everybody else does for a few hundred dollars I am doing with a system that lists for around 20K.

Why? Because I can.

Yes, it is a 385 (.00385 temperature coefficient), 248 is the model number of the TT.

Trout
Nice, but if you are using a DCS, why not narrow that dead band a bit to give you tighter control? Haha, this nerdy, but no one ever talks instrumentation on here so I find it refreshing to talk about what I learned in trade school.


KK33
Oh, absolutely I could, and probably should.

But from electronics you know that (the initial act of) turning something on is the worse thing you can do. This is why light bulbs typically blow when you turn that light on.

In other words, I don't want to be constantly starting and stopping my wineador.

Now, if I could get my hands on a softstart or vfd....

FWIW, Michael Edelman of HCMCigarBeads tells me I should use 65 - 70. Initially my wineador was in a closet (poorly ventilated) and it ran constantly so I bumped it up a bit. Where it is now (game room), I really need to drop it back.

So thank you for making me think about this.

Trout
Considering I don't have any tools at the house, how much would it cost for you to build me that and write instructions on installation? Lol


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Now you just need that analog signal in a feed-forward control loop. I've only heard of the 385 100 ohm Platinum RTD, not sure of the characteristics of the one your using.


KK33
I could, but I hit the easy button.

Simple discrete out triggered by hi temp (72 deg. f) turns on 120 VAC to wine chiller. Lo temp (67 deg. f) turns it off.

Timer turns on the fans for 1 minute every 100 minutes.

The same stuff everybody else does for a few hundred dollars I am doing with a system that lists for around 20K.

Why? Because I can.

Yes, it is a 385 (.00385 temperature coefficient), 248 is the model number of the TT.

Trout
Nice, but if you are using a DCS, why not narrow that dead band a bit to give you tighter control? Haha, this nerdy, but no one ever talks instrumentation on here so I find it refreshing to talk about what I learned in trade school.


KK33
Oh, absolutely I could, and probably should.

But from electronics you know that (the initial act of) turning something on is the worse thing you can do. This is why light bulbs typically blow when you turn that light on.

In other words, I don't want to be constantly starting and stopping my wineador.

Now, if I could get my hands on a softstart or vfd....

FWIW, Michael Edelman of HCMCigarBeads tells me I should use 65 - 70. Initially my wineador was in a closet (poorly ventilated) and it ran constantly so I bumped it up a bit. Where it is now (game room), I really need to drop it back.

So thank you for making me think about this.

Trout
Considering I don't have any tools at the house, how much would it cost for you to build me that and write instructions on installation? Lol


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Hardware, software and licenses will run you about $20K, not including the wineador.

Instructions are free.

Trout
 
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