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dierkens

I/O Specification Equivalents

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I've got a project where we're trying to replace a customers existing Emissions Monitor data logger.  

I'm trying to match the specifications of their current products to the equivalent Unitstream I/O products.  I've looked at the specification sheets for all of the I/O module and I'm not seeing a direct correlations between some of them.  What's the best way to post up the specs of the existing I/O to see if you guys can help me match it.  Here's an example of the Current Input Cards of the existing controller.

I tried to post the specs here in the post itself but I couldn't lay it out nicely; so there attached.  

Any help is really appreciated.

 
 
 
 
 
 
 
 
 
 

 

Existing Controller IO Card Specifications.pdf

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UniStream does not have isolated differential analog inputs or outputs, and the resolution is not quite as high.  You need to determine if this is important. 

I'm betting the UniStream I/O is a lot lower cost.  Are all the sensors powered from the same supply?  Are they 0-10V, 4/20mA, or something else?

Joe T.

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9 hours ago, Joe Tauser said:

UniStream does not have isolated differential analog inputs or outputs, and the resolution is not quite as high.  You need to determine if this is important. 

I'm betting the UniStream I/O is a lot lower cost.  Are all the sensors powered from the same supply?  Are they 0-10V, 4/20mA, or something else?

Joe T.

They're a mix of 0-5v; 0-10v; with the majority of them 4-20mA.

8 of the inputs are from the same source (a DCS); there's 6 separate Voltage Inputs and 17 separate mA inputs.

I've got two (2) choices; either purchase some isolation modules (at a cost of about $75/input) or use another companies I/O products that are isolated.

Are there any other non-Unitronics modules that you'd recommend?

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13 hours ago, dierkens said:

non-Unitronics modules

Lots out there but one is the ADAM-4017+.  Other people will no doubt have their own preferences.

cheers,

Aus

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