Hello support,
We have a WaspMote Plug&Sense Smart Environment with LoraWan, connected sensors are:
Temperature
NO2
Air Pressure
I have some questions about the NO2 sensorprobe 9238-Pb:
1. Which sensor is used in the 9238-Pb? I can not find it in de documentation.
2. In the examples the gain is set to 1 and the load resistor is set to 3, in the documentation of "Gases calibration.pdf" the recommended load resistor = 20. Which one should I use?
Kind Regards,
Marcel
NO2 probe 9238-Pb
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libelium-dev
- Posts: 27967
- Joined: Mon Sep 28, 2009 1:06 pm
Re: NO2 probe 9238-Pb
Hi,
The sensor is the MICS-2714, you have more detailed information of this sensor at the guide at page 33,
http://www.libelium.com/downloads/docum ... rd_2.0.pdf
About the gain it depends of the concentration you are going to measure, changing the gain you will avoid the sensor get saturated.
Regards
The sensor is the MICS-2714, you have more detailed information of this sensor at the guide at page 33,
http://www.libelium.com/downloads/docum ... rd_2.0.pdf
About the gain it depends of the concentration you are going to measure, changing the gain you will avoid the sensor get saturated.
Regards
Re: NO2 probe 9238-Pb
What about the load resistor ?
-
libelium-dev
- Posts: 27967
- Joined: Mon Sep 28, 2009 1:06 pm
Re: NO2 probe 9238-Pb
The load resistor also depends of the concentration, the typical value is 20KOhm up to 100K.
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