23/09/2022 00:00 O3 Analyser flatlining. Investigation showed Flow A and B low or zero alarms. Callout raised.

06/10/2022 13:00 - 15:00 Engineer attended, fixed internal vaccum pumps.

Engineers report : see Urban Observatory Github :

https://github.com/urbanobservatory/deployments/blob/master/Precision%20Station%20Reports/COAST_RD/06_10_2022_Newcastle%20University_North%20Tyneside_Coast%20Road%20_Callout%20Instrument%20Fault_11369_Marius%20Barbulescu.pdf

 

Data during this period will be inaccurate and should be ignored.