Pulsar Measurement had the pleasure of supplying the NHS Trust with Modbus-enabled Ultra 5 non-contacting ultrasonic measurement systems as part of the first phase of a project to monitor and control fuel oil stocks across four major hospitals in the UK.
A major hospital typically contains significant fuel oil sock on-site, and in the case of Wigan’s Royal Albert Hospital, amounting to 80,000 L (21,134 gals) over two tall tanks. Besides providing some fuel to feed the main dual-fuel boilers, hospitals also maintain emergency backup electricity generators and are required by law to store enough fuel on-site to run them for a minimum of three days in case of power cuts.

The second phase of the project took place at Leigh Infirmary, which has two fuel oil tanks totaling 40,000 L (10,567 gallons) capacity. Pulsar Measurement supplied Ultra 5 level controllers with a local display of volume, volt free contacts for alarm use, optional Modbus connectivity, and an ultrasonic transducer was selected that mounted to the top of the 6m (19.69 ft) high vessels.
The Ultra 5 controllers are wall-mounted locally to the tanks so that staff can easily read off the measurement without needing to access the tank itself, while the Modbus connection provides the ability to link the signals to a desktop display.
Commenting on the installation, Trust Engineer Mark Hogan said, “We are really pleased with the Pulsar Measurement equipment and the advice and support we got. Our people no longer have to climb the tanks, and our aim is to manage stocks and regulate deliveries right across the Trust from a desktop system.”