Low power consumption
RBRquadrante: four-channel radiometer
The RBRquadranteย is aย multi-spectralย radiometer with four channels, capable of measuring multiple wavebands simultaneously, including PAR. It features a high dynamic range, optimized cosine response, and excellent low-light detection, while power consumption and depth rating have been tailored for use in a wide variety of applications.
The RBRquadranteย supports measurement of four wavebands within the same sensor package. Tolerant of a wide ranging power supply, data are streamed via RS-232 on the MCBH-6-MP connector. A variety of adaptors make it easy to integrate into existing vehicle payload bays.
- Low power consumption
- High accuracy
- High dynamic range
- Depths up to 2000m
- RS-232 output
- Compact and lightweight
Features & Configurations
Optional Configurations
The RBRquadrante is available with any four of the following channels:
- PAR (photosynthetically active radiation), uniform response over 400-700nm
- Narrow-band radiation, variety of narrow-band channels
Specifications
| Connector | MCBH-6-MP |
|---|---|
| Diffuser | Acrylic |
| Housing | Titanium |
| Diameter | 63mm |
| Length | 57mm, 93mm (with connector) |
| Depth rating | 2000m |
| Weight (air) | 435g (in air), 250g (in water) |
| Sampling rate | Up to 32 Hz |
| Supply voltage | 4.5 to 30V (12V nominal) |
|---|---|
| Sampling | 4mJ/sample (4Hz or slower) 3mA/36mW (8Hz or faster) |
| Sleep current | 10ฮผA |
| Dynamic range | >5.5 decades |
|---|---|
| Initial accuracyFootnoteย 1 | ยฑ2% |
| Linearity | ยฑ1% |
| Operating temperature range | -5ยฐC to 35ยฐC |
| Cosine response error (water) | ยฑ5% at 0-60ยฐ ยฑ10% at 61-82ยฐ |
| Azimuth error (water) | ยฑ1.5% at 45ยฐ |
| Out-of-band rejectionFootnoteย 2 | >25dB (typical), OD 2.5 |
(1) RBR calibrates radiometers with NIST traceable references.
(2) Out-of-band rejection and resolution are wavelength dependent for narrow-band radiometers.
| Wavelength range | 400 to 700nm |
|---|---|
| Full scale range | 0-5000ยตmol/mยฒ/s (minimum) |
| Resolution | ยฑ0.010ฮผmol/mยฒ/s |
| Centre wavelengths (CWL)Footnoteย 3 | 413 / 445 / 475 / 488 / 508 / 532 / 560nm |
|---|---|
| Full width at half-maximum (FWHM) | 10nm (25mm for CWL 475nm) |
| Full scale range | 0-200ฮผW/cmยฒ/nm (full sun) |
| ResolutionFootnoteย 4 | ยฑ0.001ฮผW/cmยฒ/nm |
(3) Other CWL options within the 400-1100nm range are available upon request. Contact RBR for more information.
(4) Resolution is wavelength dependent for narrow-band radiometers.
Note: Dark offset is internally temperature-compensated.
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