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CHEMICAL EQUIPMENT UPDATE 


A firm hand on the gauge W





Manual gauging is not usually associated with advanced technology but recent developments by one manufacturer working in this sector have taken the concept onto a different plane. Andre Odermatt reports.


hen they hear the word ‘manual’ in relation to tank gauging, most people would picture a


traditional tape and bob assembly. ‘Automatic’ equipment would suggest more sophisticated technology linked via remote control system to a computer. The reality is more complex, however. State-of-the-art manual electronic gauges


are highly accurate portable measuring instruments incorporating microprocessor control and reliable electronic sensors.


The latest examples in the field, such as those recently introduced by Enraf Tanksystem, use special tapes with wires on either side for the power and signal transmission between the sensing head and the unit. An insulated coating covers the entire tape, which must be capable of surviving immersion in aggressive chemicals. Moreover, unlike automatic systems,


portable gauging units are designed to be used on many different tanks and can be calibrated in a laboratory independent of the tank


Fig. 1. Enraf Tanksystem’s new range of portable electronic level gauging devices allows the company to offer safe, portable equipment at a low cost with no compromise in terms of accuracy used.


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