RBR develops and markets submersible data loggers (sondes, recorders) for CTD, conductivity, temperature, depth (pressure), turbidity, fluorescence, dissolved oxygen, pH, ORP (RedOx), PAR measurements. RBR provides other sensors, thermistor chains (strings), tide gauges, and wave gauges to meet all your measurement requirements. Recent product introductions include a versatile data buoy controller, and laboratory salinometer, a mooring line modem and a fast DO sensor. Our instruments are all built on a modular platform to permit rapid custom configuration. Recently we have released our next generation single and dual channel loggers based on a new architecture.These loggers incorporate more memory, more battery power, faster data download using a USB interface.
Calibration equipment at RBR permits traceable calibration for oceanographic instruments including temperature to +/- 0.002 degrees, conductivity to +/- 0.003 mS/cm and pressure to +/- 0.01%. In house calibration of DO, pH, ORP (RedOx) and turbidity complement those for the fundamental physical measurements.
Our facilities and capabilities permit us to build many special purpose and custom instruments. These multi-channel loggers can be used for profiling or moored applications.
RBR also manufactures custom electronic instrumentation. This equipment ranges from adding customer-specified sensors to our precision data loggers, to remodeling research-specific equipment, to making completely new instruments.
Contact us about your custom electronic instrumentation needs.
Common to all Data Loggers
All RBR data loggers have 8 or 128 Mbytes of memory, measure time accurately with drift of 2ppm/year (just over 64 seconds/year), and run from standard CR123A lithium batteries. Each channel is digitized with a 24 bit analog-to-digital converter, avoiding the need for special logarithmic sensors.
RBR sensor specifications are:
- Temperature: ±0.002ºC. Time constant of probe is 3 seconds (standard) or 0.095 seconds (optional fast probe). Thermistor may also be embedded in the housing (30 second time constant)
- Pressure: ±0.05% of full range Standard ranges are 10/20/50/100/200/500/740/1000/2000/4000/6000m (dBar) and up to 10,000m (dBar)
- Conductivity: ±0.003 mS/cm
For marine applications the sensor is a twin-coil inductive probe with a negligible external field. For freshwater applications a three-electrode cell is used to give higher resolution.
All loggers use CR123A size lithium batteries. Further details of these batteries, together with estimates for battery life are available.
- Delrin® plastic case may be used for working depths to 740m
- Titanium case is available for deep depth deployments
All instruments may be supplied with an external underwater connector for data download or real-time use.
Full details are given in the individual data sheets for each instrument.
RBR now offers rugged, weatherproof transit cases for storage or transport of all precision instruments.