PAS CO2 Initialization sequence

[h_nakamura]

Hello,

Hello,
Regarding "AN_2011_PL38_2011_134235", the initialization sequence is bellow.

But I'd like no to power on 12V for low power consumption during accessing the registers via I2C when the PAS CO2 doesn't measure CO2.
Is it no problem to access the registers via I2C on only 3.3V power on?
I heard that 12V is for only IR heater then I think no problem...

Best regards,
h_nakamura

[George_T · Accepted solution]

Hi @h_nakamura ,

Yes, you are correct.

12 V can be turned off when the sensor is not measuring the CO2 concentration.

Thanks and regards,

George