Sensors & transducers
a fieldbus communication protocol would allow sensors to be daisy-chained, requiring just 187 meters of cable, weighing just 12 kg. That amounts to 89 per cent less cabling, which leads to more efficient power distribution and lower energy losses; reducing energy consumption and lowering CO₂ emissions.
HOW TO CHOOSE A SENSOR PROVIDER Most reputable businesses are looking to lower their greenhouse gas emissions – in their own processes, in the use of their products, and in their supply chains. Consequently, when choosing sensors, it makes sense to look for a provider with a sustainability focus. For example, Vaisala’s instruments are produced using renewable electricity and the company has set science-based targets for reducing emissions. In 2024 Vaisala received a gold medal from EcoVadis for its sustainability management system, and Vaisala has been ranked 38th in the 2025 edition of the World’s Best Companies – Sustainable Growth ranking by TIME Magazine and Statista.
THE CHALLENGE: UPTIME IS NON-NEGOTIABLE
Both temperature and humidity levels must be very carefully maintained to achieve the uptime requirements of large Datacentres. However, larger data halls can be more challenging to monitor because they have a greater potential for temperature variation - meaning it is important that there are sufficient numbers of
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temperature sensors to ensure that all servers are monitored. In addition to the temperature issues discussed above, IT equipment is also adversely affected by humidity. Low levels increase the risk of static electricity, while high levels of humidity can result in condensation, both of which can damage delicate equipment. Datacentres often have no maintenance workers onsite, so equipment reliability is crucial.
With Vaisala equipment currently operating on the planet Mars, the long-term reliability of Vaisala sensors in remote locations is beyond question. In addition, Vaisala has developed portable reference probes so that Datacentre maintenance staff can perform a quick calibration check on installed sensors. Vaisala equipment does not therefore need to be sent offsite for calibration, and service staff do not need to bring large amounts of equipment onsite – a useful feature for remote locations.
SUMMARY
Accurate, stable sensors, weather forecast utilisation, daisy chaining with fieldbus connectivity, and sustainability-focused supply chains all contribute to operational reliability and therefore uptime, whilst also minimising CO₂ emissions. Furthermore, Vaisala is a global leader in measurement instruments, with unsurpassed sustainability credentials, defining its core purpose as: taking every measure for the planet.
Vaisala
www.vaisala.com May 2025 Instrumentation Monthly
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