Product category:
Level and tank contents instrumentation
News Release from: Vega Controls UK | Subject: GWR
Edited by the Processingtalk Editorial
Team on 06 June 2008
Guided wave radar for flammable product
storage
Vega guided microwave radar technology can increase the safety and security when storing dangerous fluids, and ease the administration of COMAH or other safety regulations
Depending on the amount of hazardous liquids stored in a factory, it can be subjected to special safety regulations to prevent chemical accidents under the SEVESO II European directive - implemented as COMAH in the UK Control and notification requirements are normally dependent on the quantity of products stored on site
This article was originally published on Processingtalk on 13 Jun 2008 at 8.00am (UK)
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However, if the storage vessels are contained within a "bund" and have a reliable "anti-leak" detection system, a reduced 'hazard coefficient' can be applied to the storage capacity calculation.
Guided microwave radar technology (TDR) is convenient for both level measurement and leakage detection.
When connected to a suitable interface with an Ethernet output, this system can also send an alert e-mail or SMS for any level variations, and be activated during the night or the week-end when no level variation should occur.
This interface also allows the possibility of supplier managed, automatic re-supply to ensure an optimum (and minimum) quantity is stored on a site at all times.
Guided microwave level transmitters emit short microwave pulses at the speed of light, which are 'guided' along the surface of a rod or cable, or between a coaxial rod configuration, which is suspended from top to bottom of a vessel.
When the pulses reach the material surface, they are reflected back up the guide to the sensor.
Highly sophisticated electronics measure the elapsed time period between transmission and reception of the signal and calculate this as a distance, converting the information to level or volume.
A signal conditioner with Ethernet, SMS and e-mail communications can have alarms configured for 'level change', with the alarms armed at particular times and days.
This high accuracy system can be applied using small vessel connections, from 3/4" BSP, is unaffected by vapours and density changes and has no moving mechanical parts.
The units are SIL qualified, and have ATEX Approval. Request a free brochure from Vega Controls UK ...
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