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RBRquartz3 BPR

Bottom Pressure Recorder

The RBRquartz³ BPR uses an integrated Paroscientific Digiquartz® pressure sensor for the best-in-class initial accuracy, resolution, and low drift performance. The RBRquartz³ BPR is intended for long-term autonomous or real-time observations of water level, tides, and tsunamis in deepwater.

  • Long deployments
  • High accuracy
  • 10ppb resolution
  • 240M readings
  • Up to 16Hz sampling
  • USB-C download
  • Twist activation

Features & Configurations

Long Deployments

High Accuracy

240M Readings

UP TO 16Hz SAMPLING RATE

USB-C Download

10ppb RESOLUTION

The RBRquartz³ BPR is ideal for tsunami detection and early-warning systems, providing continuous measurements while connected to a cabled realtime network. Flexible measurement schedules and configurable integration times enable water level and tide observations in deep water.

The Paroscientific Digiquartz® pressure sensor supports instantaneous pressure measurements, average pressure measurements over specified sampling duration, and burst-sample pressure measurements at up to 16Hz. A high-accuracy marine thermistor records temperature data with each pressure measurement.

Realtime data applications are enabled via USB, RS-232, RS-485, or Ethernet communication. Data transmission to a surface buoy can be performed inexpensively and reliably using the RBR MLM inductive modem system. Innovative canister design allows for easy access to the battery compartment and fast data download via USB-C. Datasets can be read directly in Matlab, or exported to Excel, OceanDataView®, or text files.

Specifications

Physical
Storage 240M readings
Power 8 AA cells
External power 4.5-30 VDC
Communication Internal: USB-C
External: USB, RS-232/RS-485, Ethernet
Clock drift ±60 seconds/year
Depth rating 7000m
Housing Titanium
Dimensions ~540mm x 60mm
Weight ~3.3kg in air, ~1.7kg in water
Temperature
Range -5°C to 35°C
Initial accuracy ±0.002°C
Resolution 0.00005°C
Typical stability ±0.002°C/year
Time constant 30s (embedded)
Depth
Range 4000 / 7000dbar
Initial accuracy ±0.01% full scale
Resolution 10ppb (at 1Hz sampling rate)

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