Replacing Temp Controller: What to Look For?

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Discussion Overview

The discussion centers around selecting a temperature controller for an industrial application, specifically in the context of replacing a non-functional unit. Participants explore various properties and settings that should be considered when choosing a new controller.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant seeks guidance on the necessary properties and settings for selecting a temperature controller for a specific application.
  • Another participant asks for details about the previous controller and its connections to better understand the requirements.
  • A participant mentions the lack of documentation for the original controller, complicating the replacement process.
  • There is a suggestion to cross-reference the original controller with available stock to find a suitable replacement.
  • One participant compares the selection criteria for a temperature controller to that of an electric motor, identifying voltage and temperature sensing elements as key factors.
  • Another participant emphasizes the importance of knowing the application to provide a more tailored response to the selection criteria.
  • Questions arise regarding the type of controller, specifically whether it is an on-off controller or a proportional device.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and requirements for selecting a temperature controller, indicating that there is no consensus on the specific criteria to consider. The discussion remains unresolved with multiple viewpoints presented.

Contextual Notes

Participants note the absence of documentation and specific details about the original controller, which may limit the ability to provide definitive guidance on selection criteria.

EEFinder
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I am trying to replace a Temp. Controller that is no more produces anymore.
What are the controller properties/settings/ that I have to pay attention to. in another word, what to select a temp controller for certain application?
Thanks.
 
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What did you have before and what are you hooking it to?
 
this was dumped on me today,
the original controller was "ripped" for the application (industrial heating pad), long time ago. so there is no way to know which one goes where, meaning that no documentation what so ever of which wires go to the RTD, control, and power... is available.
I am thinking about cross referencing the original controller with something that I will have in stock.
to do this I wanted to know what should consider in a controller for it to go with my application.

Thanks.
 
Thanks of the Reply.

you see just for the sake of analogy, if someone asks about what to look for in selecting an electric motor, I would answer RPM, current, Voltage,Frame, HP,

I am looking for similar answer, but using Temp Controller instead of the electric motor. I know 2 so far that are the voltage and the Temp Sensing element (RTD, TC..) and wondering what the others are?

Hope this makes sense
 
EEFinder said:
... in another word, what to select a temp controller for certain application?
Well, know the application helps to know in order to answer such a general question. But Okay. 4-20 ma loop?
 
OK http://www.grainger.com/product/OMRON-Digital-Temprature-Controller-WP135543/_/N-8h2?s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/4YE30_AS01?$smthumb$
 
Last edited by a moderator:
form, fit, function

What do you know about the one that's no longer there ?
 
First question is this an on off controller or a proportional device?
 

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