PECM Issue 21 2016 | Page 17

Editors Choice Hydrostatic Level Measurement T here are many types have been full all the time, of level measurement decision makers”technology. For hydrographic surveys, water table and borehole measurement, hydrostatic pressure measurement is one of the most reliable. was fantastic to meet with likended people - especially in motor orts and hybrid power…We’ve t some great leads to follow up” Harbord, Sales & Marketing Manager, LCL Electronics Hydrostatic pressure is described as being the pressure exerted by a fluid at equilibrium to a given point within the fluid, due to the force of gravity. A liquid column above the pressure sensor creates hydrostatic pressure, which is a direct indicator of the liquid level. In Europe the standard unit of measurement is metres of water gauge (mWG), also referred to as metres of water column (mWC), or metres of H2O (mH2O). ESI Technology design and manufacture a range of pressure transmitters for hydrostatic level applications. They are available in a range of diameters and can be calibrated to any unit of measurement. desiccant housing at surface level is required to prevent moisture ingress over time. Stilling tubes and weighted nose cones are also available. ESI Technology can quote for individual sensors or complete systems to include cable, housing, display and other accessories. Contact details: ESI Technology Ltd, Sensor House, Wrexham Technology Park, Wrexham, LL13 7YP, UK T: +44 1978 262255 F: +44 1978 262233 E: [email protected] W: www.esi-tec.com It is also necessary to use a special vented cable so that barometric pressure does not affect the true hydrostatic pressure measurement. Also, a Issue 21 PECM 17