14/10/2022 18:00 All data stopped.

22/10/2022 Mains power fuses blown and keep  blowing. (6A Fuses - possibly too low?) Investigation narrowed down to the NOx analyser causing the tripping issue. Callout requested.

28/10/2022 12:45 - 15:39 Engineer on-site, diagnosed faulty 24V power supply, will need to order. Engineer also removed NOx pump to use at Tyne Bridge

For Engineers Service report : See Urban Observatory Github :

28_10_2022_Newcastle University_St James Boulevard _Callout Instrument Fault_11444_Aaron Lowe.pdf

TODO when the new pump arrives, it needs to be installed at St James.

Nox data will be missing until fixed.

Other data will be missing in period 14/10/22 18:00  - 21/10/22 08:00