@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 sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "An all-in-one 24-bit digitiser, recorder and telemetry instrument designed for multidisciplinary science involving various geophysical sensors, such as seismometers, microbarometers and weather stations. It has a high-accuracy voltage and current source calibration signal generator, and supports GNSS, PTP or NTP time sources. The instrument is configurable via a web interface which also provides real-time state of health and waveform viewing. It also offers configurable lowpass, highpass and bandpass digital filtering. It is available with either 3 or 6 channels and is IP68 rated (waterproof). The Centaur with Authentication (models CTR4-3A and CTR4-6A/S) has built-in hardware authentication of CD-1.1 message formats. It has dual sample rates up to 5000 sps."@en ; sdo:inDefinedTermSet ; sdo:name "Nanometrics Centaur Digital Recorder CTR4"@en ; sdo:termCode "SDN:L22::TOOL1350" .