| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|
| 6487 |
2023-12-07 |
Lab none |
Installed |
Bouldin Corn Air Quality Sensor |
Installed on the BC tower in its usual spot on the southwest corner. This PA has a new card slot that Joe put in. I had brought the sensor home last week so that it could reset its clock on my wifi. However, now campus has an IOT wifi network, so maybe I can try connecting the PA to it next time. |
| 5580 |
2021-11-18 |
Bouldin Corn Air Quality Sensor |
Removed |
Lab none |
Removed from BC tower and brought back to the lab because there was some corrosion on the SD card slot |
| 5096 |
2021-02-03 |
Lab none |
Installed |
Bouldin Corn Air Quality Sensor |
Reinstalled on the BC tower after cleaning and inspection in the lab after being removed after the tower fell last week |
| 4937 |
2020-10-22 |
Bouldin Corn Air Quality Sensor |
Removed |
Lab none |
Removed from BC and brought back to the lab. The microSD card is hard to seat properly into its slot. It was replaced by sn 84f3ebd5ffb1. |
| 4778 |
2020-09-23 |
Lab none |
Installed |
Bouldin Corn Air Quality Sensor |
Installed at BC to replace sn 84f3ebd5ffb1, which was brought back to the lab for testing |
| 4626 |
2020-07-21 |
Bouldin Corn Air Quality Sensor |
Removed |
Lab none |
Removed from BC and brought back to the lab to test. No data files on card. |
| 4381 |
2020-02-20 |
Lab none |
Installed |
Bouldin Corn Air Quality Sensor |
Installed at BC in an additional PVC solar/weather shield and mounted on the southwest corner post of the scaffolding. |
| 4378 |
2020-02-19 |
Lab |
Maintenance |
Lab |
This sensor got wet when the tower fell down. I took it apart and discovered that only the real time clock board with battery looked corroded. The sensor ran well without the RTC battery - both particle counters agreed. And the sensor compared well with the new one running side by side. I bought a new RTC board that needed to be modified - a pin header on one side of the board was removed and a diode that enabled charging of the battery needed to be remove since standard coin cells are not rechargeable. After reassembly it ran well and was able to connect with the PurpleAir web site getting its clock reset and running firmware v4.11 |
| 4201 |
2019-12-02 |
Bouldin Corn Air Quality Sensor |
Removed |
Lab none |
Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26. |
| 3925 |
2019-04-18 |
Lab none |
Installed |
Bouldin Corn Air Quality Sensor |
Installed again at BC after checking the new microSD card and the sensor were ok. |
| 3923 |
2019-04-11 |
Bouldin Corn Air Quality Sensor |
Removed |
Lab none |
Removed from BC and brought back to the lab for testing. The microSD card was cracked, but the sensor itself was fine. |
| 3886 |
2019-02-12 |
Lab none |
Installed |
Bouldin Corn Air Quality Sensor |
Installed at BC. It is bolted to the bottom side of the upper boardwalk. |
