RBRtridente three-channel fluorescence and backscatter sensor
Product Number：RBRtridente three-channel fluorescence and backscatter sensor
The RBRtridente is an optical sensor with three channels, capable of making multiple fluorescence and backscatter measurements simultaneously. Its high dynamic range permits exposure to full sunlight with very low detection limits, while power consumption and depth rating have been tailored for use in a wide variety of applications.
The RBRtridente supports measurement of chlorophyll a, fDOM, and backscatter or turbidity within the same sensor package. Tolerant of a wide ranging power supply, data are streamed via RS-232 on the MCBH-6-MP connector. The size makes this sensor compatible with existing vehicle payload bays. Synchronous detection and automatic gain control make it tolerant of full sunlight exposure while still permitting high resolution measurements of very small signals.
The RBRtridente supports measurement of chlorophyll a, fDOM, and backscatter or turbidity within the same sensor package. Tolerant of a wide ranging power supply, data are streamed via RS-232 on the MCBH-6-MP connector. The size makes this sensor compatible with existing vehicle payload bays. Synchronous detection and automatic gain control make it tolerant of full sunlight exposure while still permitting high resolution measurements of very small signals.
- Low power consumption
- High sensitivity
- High dynamic range
- Depths up to 6000m
- RS-232 output
- Compact and lightweight
| Physical Connector MCBH-6-MP Depth rating 1Up to 6000m Diameter 63mm Length 57mm, 93mm (with connector) Weight 400g (in air), 210g (in water) Temperature range -5°C to +35°C |
| Power Supply voltage 4.5V to 30V (12V nominal) Power 20mJ/sample (4Hz or slower) 384mW (8Hz or faster) Sleep current 10µA |
| Interface RS-232 polled or autonomous streaming |
| Optical Centroid angle 120° Sensing volume ~1.3mL Linearity, R² 0.99 Calibration accuracy 5% |
| Chlorophyll a Channel wavelength (excitation/emission) 470nm/695nm Calibrated range2 0-50μg/L Detection limit2 0.01μg/L |
| fDOM3 Channel wavelength (excitation/emission) 365nm/450nm Calibrated range 0-500ppb Detection limit 0.03ppb |
| Backscatter Channel wavelength 470/525/650/700nm Calibrated range4 0-0.05m⁻¹sr⁻¹ Detection limit 1×10⁻⁶m⁻¹sr⁻¹ |
| Turbidity Channel wavelength 700nm Calibrated range5 0-500FTU Detection limit 0.001FTU |
| 1 Standard depth rating is 2000m. 6000m is available upon request. Contact RBR for more information. 2 Scaled to the fluorescence response from a monoculture of Thalassiosira weissflogii. 3 fDOM can be used as a proxy for cDOM. 4 Response becomes non-linear above 0.05m-¹sr-¹. 5 Response becomes non-linear above 500FTU. Instrument integration: The RBRtridente can be easily added to any RBR instrument alongside the CTD and other sensors. |
