Monitoring apparatus

PCT No. PCT/GB92/01081 Sec. 371 Date Dec. 7, 1993 Sec. 102(e) Date Dec. 7, 1993 PCT Filed Jun. 17, 1992 PCT Pub. No. WO92/22373 PCT Pub. Date Dec. 23, 1992.This invention relates to monitoring apparatus and, in particular, but not exclusively to such apparatus for use in association with mains water...

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Bibliographic Details
Main Author WILLIAM FREDERICK SMITH-HADDON
Format Patent
LanguageEnglish
Published 31.08.1995
Edition5
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:PCT No. PCT/GB92/01081 Sec. 371 Date Dec. 7, 1993 Sec. 102(e) Date Dec. 7, 1993 PCT Filed Jun. 17, 1992 PCT Pub. No. WO92/22373 PCT Pub. Date Dec. 23, 1992.This invention relates to monitoring apparatus and, in particular, but not exclusively to such apparatus for use in association with mains water supply facilities. A water works 10 has a water main 12, in which is located a filtration unit 13 having a filter 17. A pressure transducer 17a monitors the pressure drop across the filter 17 to initiate backwash. The conditions of backwash are monitored by a control unit 20 which operates valves 21 to 24 so that when abnormal conditions are detected a sample of the backwash fluid can be captured in reservoirs 25 to 27 in accordance with the degree of abnormality.
Bibliography:Application Number: AU19920019281