MEDICAL GASES
recommended that periodic backups undertaken to an external disk or website in order to protect data integrity. A range of working pressures, up to 145
PSIG, and flows from 0.5 SCCM up to 1500 SLPM, allow the system to be used in a variety of applications, from those using heavy pipelines and high flows to those more typically found in the laboratory environment, with very low flows and high precision. The maintenance-free gas flow sensors are
interjected in series to monitor the consumption in the area of interest. Powered by a constant electrical current source, the sensors communicate with the computer via a serial interface. A manifold bypass system allows the isolation of each sensor, if needed. The parameters that are measured and
transmitted to the central processing unit include: • Flow. • Accumulated volume. • Pressure. • Temperature.
The system comes complete with a computer which is able to gather these parameters from each sensor for further processing and report generation. There are a variety of ways that information can be reported, for comparison, statistics, billing, budgeting, or maintenance. The existence of the reports offers an aid to allow smarter decisions to be made to and help reduce costs. During system set up, it is possible to set
maximum and minimum operational limits for each parameter. When these limits are exceeded in any direction for a particular parameter, an alarm signal is indicated by changing the colour used to identify that parameter. A power supply failure or the interruption of the serial interface data flow,
Report showing 1-hourly readings, with and without activity.
are also recorded as ‘no activity’ and are time and date stamped, allowing corrective action to be taken promptly. The application software included with
Vitalox is based on the low-cost Linux operating system. A pull-down menu of options permits visualisation of various screens.
Remote access and control Web connectivity enables remote access and control of the system from anywhere in
‘It is possible to set maximum and minimum operational limits for each parameter. When these limits are exceeded in any direction for a particular parameter, an alarm signal is indicated.’
the world via the Internet. This access is tiered in two levels – operator and system administrator – to ensure maximum flexibility and security.
In conclusion The Vitalox system can provide a useful tool to a variety of actors: • The administrator who wants to compare gas volume purchased vs. gas volume consumed (per area, per hour, per day, per month, etc.).
• The maintenance department to help with the detection of leaks and to evaluate and track general pipeline performance.
• The end user who wants to know exactly what he/she is paying for.
• Any other stakeholder in the medical or industrial consumption of oxygen or other gases.
Providing insights into the vast field of healthcare engineering and facility management
IFHE DIGEST 2013 77
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