Ozone Module maintenance

The Ozone Module is designed for low-maintenance field operation. The main task is checking and replacing the particulate filter when needed. This article covers that and recalibration.

Before you start

• Spare particulate filters: ten (10) new filters come in the box with every Ozone Module.
• If you need more, order them directly from Savillex as part #450-47-4 (47 mm filter membrane, 5-6 micron).

Checking and replacing the particulate filter

The particulate filter keeps particles from contaminating the flow path. Depending on the particulate matter in the ambient air, it saturates over time and needs periodic replacement.

Assuming a high average particulate concentration (~50 µg/m³), the estimated filter lifetime varies with the Node-S sleep time:

Sleep time (sec)	% operation	Particulate filter lifetime
1	33%	3 months
300	17%	6 months
600	11%	9 months
900 (default)	8%	1 year

Because the actual particulate concentration varies by site, we recommend checking the filter after 2 months of operation and replacing it if needed. You can replace the particulate filter yourself.

Tip: After replacing the filter, perform a zero check to confirm it was installed properly.

Recalibration

Clarity recommends recalibrating the Ozone Module every two years, which requires sending the unit back. To start that process, email support@clarity.io.

What's next

• Deploy the Ozone Module.
• Ozone Module siting guide.
• How Clarity calibrates Ozone.