RBRquartz³ BPR (bottom pressure recorder)

RBRquartz³ BPR|zero
RBRquartz³ BPR|zero internal view

RBRquartz³ BPR|zero: Bottom Pressure Recorder with AzeroA drift correction

The RBRquartz³ BPR|zero is a special version of the robust RBRquartz³ BPR implementing a novel AzeroA technique to correct for the long-term drift in the Paroscientific Digiquartz® pressure gauge . This instrument is intended for deep, long-term deployments, where high stability and resolution of absolute pressure measurements are critical.

  • Long deployments
  • High accuracy
  • Quartz stability
  • Up to 8Hz sampling
  • AzeroA drift verification
  • 10ppb resolution
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The RBRquartz³ BPR|zero integrates one or two Paroscientific Digiquartz® pressure gauges, an internal quartz barometer, and a switching valve. The AzeroA drift correction technique periodically activates the switching valve to perform reference measurements of internal housing pressure. The resulting long-term drift is several hundred times lower than with uncompensated measurements.

The RBRquartz³ BPR|zero requires external power to operate the valve, and can use RBRfermata underwater battery canisters, or connect via cable to an observatory for external power and realtime data access.