After Installation

While in service at the installation location, your PurpleAir sensor may require maintenance. At some time, you may determine a better service location for your PurpleAir sensor. If you expect your PurpleAir sensor to not be employed in service for some period of time, you may want to store it until needed again. Consider these topics within this guide. Your preferred, local or personal, WiFi network will be referred to as local WiFi for the remainder of this guide.

Sensor Maintenance

Once your sensor has been in service at the installation location, it becomes exposed to foreign contaminants. We expect the sensor to contact airborne particulate matter. But undesirable contaminants may impede the function of the sensor.

We do not recommend a regular cleaning schedule for PurpleAir sensors, and no preventive maintenance is required. If one of the laser counters is not reporting as expected, is downgraded, reporting high, not working, or spikes erratically, then it is possible that one of the laser counters in your sensor has become congested with debris, an insect, or a spider.

If necessary, clean out the laser counters: place a shop vacuum or traditional vacuum hose on the bottom of the sensor for 2-3 minutes. If further cleaning is necessary, clear out the laser counter with canned compressed air. Focus on the four collinear holes on each laser counter. If these attempts prove unsuccessful, please contact us here about laser counter replacement.

Sensor Relocation

Once your sensor has been in service at the installation location, you may determine a better service location for your PurpleAir sensor.

Before moving the sensor to a new location or location type (inside/outside), the data gathered to date will need to be archived to the physical location, and the sensor will be reset to gather fresh data in the new location. Please proceed as follows:

  1. Disconnect the PurpleAir sensor from the power supply.

  2. Send a pre-formatted email to let us know to archive the data:
    Subject : “Archive Sensor”
    Body : State the Device ID ( **:**:**:**:**:** ), and let us know when you are moving it or that you have already disconnected the power supply.

  3. Once you receive confirmation back from PurpleAir, reconnect the sensor to the power supply and your local WiFi. Finally, reregister the sensor in the new location.

    PA_Reregister

Sensor Storage and Care

If you expect your PurpleAir sensor will not be employed in service for some period of time, we recommend proper storage practices until it’s needed again. To extend the service-life of the sensor, store it in a dry place inside a sealed container. This discourages the accumulation of dust, insects, and moisture; any of which could potentially affect the performance of the laser counters.