@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . skos:member . skos:narrower . skos:altLabel "Suber SLS21 VACM" , "Suber SLS21 VACM"@en ; skos:broader , ; skos:definition "A current meter fitted with a Savonius rotor magnetically coupled to a reed switch counter, a vane on tungsten carbide bearings magnetically coupled to a compass and solid-state crystal clock. Current vectors were continuously measured and then averaged after a specified time interval (generally 10 minutes) by an on-board minicomputer to produce the logged data values. Accuracy was 2 per cent for speed, 4 degrees for direction and 2 seconds per day for the clock. Casings were available for operating depths of 1000m, 3000m and 6000m.More information may be found in http://www.bodc.ac.uk/data/documents/nodb/19202/"@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0611" ; skos:note "accepted"@en ; skos:prefLabel "Suber SLS21 vector-averaging current meter"@en . skos:narrower . skos:narrower . skos:narrower .