[PSUBS-MAILIST] Optical Oxygen Sensors

[Alan via Personal_Submersibles]

Have seen them for NZ $220 ( US$142 ) with free freight. 
video of the luminox sensor here...https://m.youtube.com/watch?v=ESyonIVrA1o
Data sheet here...https://www.sstsensing.com/wp-content/uploads/2019/07/DS0030rev14_LuminOx.pdf
Have requested a quote on 3 from the manufacturer.
Alan


> On 8/08/2019, at 2:28 PM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> CO2 meter has an RS485b analog model.  But I'm curious, why use voltage instead of serial?
> 
> Jon
> 
> 
> On Wednesday, August 7, 2019, 09:45:45 PM EDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Hi,
> I've been reading a bit about the solid state optical oxygen sensors which
> have a longer life & are more reliable than traditional galvanic cel ( battery)
> type O2 sensors. 
> Poseidon developed them for the dive industry & they were hailed as a break
> through at the time. There is a company, SST sensing that is marketing them for 
> varying applications....https://www.sstsensing.com/optical-oxygen-sensors-key-benefits-and-applications/
> Is any one familiar with them? There seems to be a big price difference between
> varying brands.
> The ones I've seen are calibrated internally for pressure & temperature & transmit 
> data rather than a voltage or current reading. I am looking for a cheap option that 
> has a current or voltage signal rather than data & I will be using something like a raspberry Pi or Arduino to process the reading.
> I am also wanting 3 as in a rebreather to compare readings.
> Do they need much of an O2 flow over them or are they ok just being placed 
> randomly within the hull?
> Cheers Alan
> <image1.jpeg>
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