CO2 sensors

Any hardware type questions or problems for all other Phidget devices.
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scsm
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CO2 sensors

Post by scsm »

What options are available for connecting HUB5000s with CO2 sensors in a sampling system?

For example, something like the following:

https://www.esis.com.au/wp/wp-content/u ... D-ESIS.pdf

https://www.co2meter.com/collections/20 ... 4457805942

https://www.co2meter.com/products/carbo ... 0833885302
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mparadis
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Re: CO2 sensors

Post by mparadis »

GMM111 Carbon Dioxide Module
From the datasheet, it looks like this sensor requires 24VDC power and outputs both 0-10V and 4-20mA for the measurement.This means you can read it using the DAQ1400. Just connect the 12V/24V and Gnd terminals on the DAQ1400 to the 24V and 0 terminals on the CO2 module, and then connect the 4-20mA terminal to the mA terminal. You can then connect the DAQ1400 to the HUB5000 with a Phidget cable. In your program, you'll need to convert the 4-20mA value into CO2% using a formula (I didn't see one in the data sheet but there's probably a user manual that has more information).

ExplorIR-M20%
This is a USB sensor, so there's no easy way to use it with the HUB5000.

TX CO2 Industrial
This is an RS485 sensor, so there's no easy way to use it with the HUB5000.
Edit: Actually, it looks like it may also have a 4-20mA output so you could hook it up the same way as the GMM111.
scsm
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Re: CO2 sensors

Post by scsm »

Thanks!
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