FIES building

The cooling of the FIES front room changed, and the cause was found to be the failure of an external valve for the main cooling system water. The valve control unit was replaced and a second spare purchased.

We have a continued problem with the temperature monitoring system of FIES, with temperature sensors in the building failing one by one. We are currently down to 3 working units. As part of a potential upgrade of the science fibres for FIES, new equipment was identified to improved temperature control of the instrument room. This included a different temperature monitoring system, alternative temperature controllers and an accurate barometer. Quotes for this equipment were obtained.