Nynas AB has installed Smart Wireless technology from Emerson Process Management to upgrade an underground storage tank monitoring system and creating an online integrated solution.Nynas, producer of bitumen and naphthenic speciality oil products, owns four refineries in Sweden. The underground storage tanks at Nynashamn refinery are monitored for unequal vapour pressures which can indicate potential blockages in the pipes that connect the tanks. The existing pressure switches are ageing and due to be replaced. They were not continuous, only indicating when set levels had been exceeded.
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