@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @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: . pav:hasVersion . pav:previousVersion . rdf:type skos:Concept ; dce:identifier "TOOL1493" ; dc:identifier "TOOL1493" ; dc:isVersionOf ; pav:authoredOn "17-JUL-20" ; pav:version "1" ; owl:versionInfo "1" ; skos:altLabel "Sunburst SAMI2-pH" ; skos:definition "An in situ total hydrogen scale pH sensor used to measure seawater pH. It is designed to provide seawater pH time-series data for scientific research at depths up to 600 metres. It can support 3 external instruments such as PAR, dissolved oxygen, fluorometer, or CTD. It also supports Seabird inductive modems or external loggers via RS-232. It has 234-day deployment (~4300 measurement) capability, providing hourly measurements, and can be fitted with an extra battery to extend deployment duration to over a year. The SAMI2-pH sensor operates in the pH range of 7-9 and the salinity range of 30-36. It has a precision <0.001 pH units and an accuracy +/- 0.003 pH units." ; skos:notation "TOOL1493" ; skos:note "accepted" ; skos:prefLabel "Sunburst Sensors Submersible Autonomous Moored Instrument 2 {SAMI2-pH} pH sensor"@en .