Shearwater Firmware v53 is now available. Update your Perdix, Petrel, and NERD 2 to ensure you have the latest features.
Highlights:
- New "Stack Timer" (CO2 scrubber duration timer) feature. The Stack Timer is only available in Closed Circuit (CC) modes. The Stack Timer counts down when diving. It is manually reset by the user when changing the scrubber stack. The total time can be changed by the user. The warning at 1hr00min and alert at 0hr30min are fixed.
- The in-computer dive log now displays start and end tank pressures and average SAC.
- XCCR users can now enjoy CO2 sensor support. Reports CO2 as the partial pressure of CO2 (PPCO2) in millibar. Alarms when PPCO2 is greater than 5 mbar. Allows user to calibrate the CO2 with a user specified parts-per-million (ppm). For example, in fresh outdoor air a value of 400 ppm should be used.
You can read the complete release notes here: https://www.shearwater.com/wp-content/uploads/2018/02/Release-Notes-Translations-V53.pdf.
