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Old 06-17-2011, 05:17 PM   #1
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Default Alternative PIDs, anyone use?

Anyone have any experience w/ these PIDs I'm seeing on ebay:
REX-C100
http://bit.ly/kO5j3G

I've found both the manufactures site (http://www.rkcinst.com/) and manual and it seems like all I'd need for a 'beginers' controller. I know others have cautioned about ebay PIDs, so I was curious if anyone had experience w/ this particular model. I realize most prefer/choose Auber.

As background, I'm building a two vessel system. I'll only be using 1 PID for control (5500W element in Kettle) and 1 PID just for monitoring temp of MLT.

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Old 06-17-2011, 05:24 PM   #2
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I think many of the PID's come from the same source. It really is the support you pay for if you buy from Auber. I've had enough issues with EBAY stuff that I look for US based companies to support USA by keeping some of the profit here as well as knowing someone will respond to me.

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Old 06-17-2011, 09:45 PM   #3
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Most of your standard PID's, as stated above, come from the same manufacturer.

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Old 06-17-2011, 11:48 PM   #4
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Be aware that the PID appears to be a relay output unit. Not a SSR control unit.

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Old 06-19-2011, 10:50 PM   #5
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I did buy one of those, then found it was only of use with a k type thermocouple and not the pt100 probe I bought for it!
My tip is to read the description carefully and make sure that
a - it'll work with your chosen sensor
b - it'll give the output you need

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Old 06-20-2011, 02:20 AM   #6
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You will also need manual mode to dial in % power for the boil.
I use omega pids in my system. I got them off ebay. You absolutely need to know the full model # of what you are buying. Kieth outlined the two most important features. If you are using SSRs with dc input, you will need pid with pulsed dc or dc output. Some companies call it SSR control output.

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Old 06-20-2011, 12:20 PM   #7
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Thanks for the input everyone. The REX-C100 does not have a manual mode, and according to the seller is not designed for SSR output.

Maybe I'll use one for my MLT probe since (1) doesn't need manual mode, and (2) I don't know that I'll be wiring the system to even allow the MLT PID to run the element.

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Old 06-20-2011, 10:55 PM   #8
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We're just getting a electric brew system setup and I am using an Arduino microcontroller and a SSR to get things going and so far it works well.

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Old 06-23-2011, 02:19 PM   #9
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You have to watch out on this particular PID.

All of the ebay sellers (and there are many) use almost the exact same description, which falsely states :

Voltage pulse output: 0/12V

There are models of that PID that do support the SSR pulse output, but I've yet to find someone on ebay actually selling one of those models.

The title of the listings are also almost always the same, too, and they say:
Dual Digital F/C PID Temperature Controller Control


I don't know what that "F/C" part is, but it is not "Fahrenheit/Celsius". These things are Celsius only.


There is another PID out there on ebay that does support SSR output and can be gotten for close to $35.
http://cgi.ebay.com/Digital-PID-Temperature-Controller-D1S-VR-220-10-OFF-/320648402068?pt=LH_DefaultDomain_0&hash=item4aa822 5494
Just make sure the thing has "VR" in the model number.

That thing is only Celsius, too, but at least it can control an SSR.

The TET612 PID I use was from ebay, displays in fahrenheit and is pretty dang configurable (Can use relay or SSR for output, a few alarm functions, etc). I can no longer find them on ebay, but you can get them from here:
http://www.lightobject.com/JLD612-Dual-Display-PID-Temperature-Controller-P43.aspx

But, do keep in mind that none of these support manual mode. The Auber PIDs are the only reasonably priced PIDs that I have seen that support that kind of operation.

edit: the TET612 is no longer the deal it used to be. I got mine, shipped, for about $30. It looks like they'll run you $45 with shipping these days, so you'd be better off just getting the auber one.

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Old 06-23-2011, 04:32 PM   #10
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With Auber, you know what you are getting and they appear to stand behind their products when they fail.

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