Instrumentation  
PROCESS Woldwide-01-2004

Nose-friendly device
Manual electronic gauges


Manual gauging is not usually associated with advanced technology nor with reducing VOC emissions, but recent developments by one manufacturer working in this sector have taken the concept onto a different plane.

State-of-the-art manual electronic gauges are highly accurate portable measuring instruments incorporating microprocessor control and reliable electronic sensors and can work under totally closed conditions. The latest examples in the field, such as those recently introduced by Swiss manufacturer TS Tanksystem, even use digital signal transmission technology between the unit and the sensor head to improve immunity to electromagnetic fields.
Unlike automatic systems, Portable Electronic Gauging Devices (PEGDs) are designed to be used on many different tanks and can be checked in a laboratory independent of the tank geometry. PEGDs are more reliable than other traditional methods (dipping tape with weight, dipping rods, water finding pastes, glass thermometers, etc.). But until recently their weight was considered a disadvantage, they needed regular re-calibration to ensure that accuracy is maintained, and they were not immune to electromagnetic fields. The new product addresses these issues.
No VOC emissions: The Hermetic Utimeter is designed to gauge without any vapor release. A compact ball valve, specially designed, is permanently fixed on the tank. All along the gauging process, the system remains tight and the operator is never exposed to the VOCs.

No subsequent calibration: Compared to the current models, the new Utimeter allows the tape, the sensor or the electronic board to be simply exchanged with no effect on the accuracy of measurement. It does not require any subsequent calibration of the temperature function over time.
Immune to electromagnetic fields: Thanks to its new digitized transmission of the signal from the sensor to the display, and other protective special features, the new Utimeter fulfils the requirements of the EN 50081 (emission) and EN 50082 (immunity) standards for electromagnetic compatibility.
Easy to maintain: The tape, sensor and electronic display unit components can all be changed without special tools or soldering; just plug-in and plug-out. The verification of the temperature accuracy is achieved by a simple ice point check that is easy to carry out without sending the unit to a laboratory, and without the need for a reference thermometer. These features translate into significant savings in transportation and repair costs, and also to a high degree of operational readiness.

All along the gauging process, the system remains tight and the operator is never exposed to the VOCs.

 Usefull Links 
Have a look at the range of gauging equipment (URL: http://www.tanksystem.com/products/gauges/index.htm)




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