Stationary Carbon Monoxide detector

Christoff84

Lifetime Supporting Member + Moderator
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Join Date
Jun 2006
Location
Cambridge, ON
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Hi folks, does anyone have any recommendations for a stationary CO detector. Ideally I'd like them to have ethernet based communications (Modbus TCP), but I can work with serial if I really have to.
 
From my experience with fixed point gas monitors, you're either going to have a simple 2-wire monitor that is easy to maintain/calibrate AND (relatively) cheap or a packaged system that is either easy to maintain/calibrate OR cheap.

Here's one I found, but I have no experience with that brand.

https://www.sensidynegasdetection.c...trollers/model-7200-gas-detection-controller/


If it was me, I'd go with a Draeger, MSA, or Honeywell monitor using 4-20 mA and then get a converter to send it via the ethernet if that's what you need:
https://www.datexel.com/4-20-ma-to-modbus-tcp-dat8015.html
 
Last edited:
Thanks for the help. I think I will have to look for a 4-20ma device and connect it that way. The only Modbus/TCP device I found doesn't require any kind of calibration or bump test, so not sure I trust the quality of it.
 

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