Features & Applications
Features
- Fully programmable protocol design for fluorescence light curves (FLCs) including sample exchange between successive runs
- Options to duplicate the FLC protocol as oxygen light curves (OLCs) and estimate PSII reaction centre concentration through flash O2 measurements, when combined with a Hansatech Oxygraph system
- Fine control of photon irradiance(E) during FLCs and OLCs (down to 1 µmol photons m-2 s-1 at low E values)
- Up to full sunlight intensity during FLCs and OLCs (>2,000 µmol photons m-2 s-1)
- Saturating, single turnover flashes of 160 µs duration at 20,000 µmol photons m-2 s-1 for flash O2 measurements
- Fully automated changes to FLC protocol design within long-term experiments
- Optional solenoid system allows for programmable switching between sample sources
- High level of automation and operational stability, making it suitable for use in autonomously deployed systems
Applications
- Continuous running of fluorescence light curves (FLC) with automated sampling from one or more phytoplankton cultures
- Replacement of 14C-based photosynthetron systems for generating primary productivity data
- Oxygen light curves (OLCs) and estimation of PSII concentration (when combined with Hansatech Oxygraph system)
Specifications
FastOcean FRR fluorometer
Excitation LED Channels | 3 x 6 custom-made LEDs, centred at 450, 530 and 624 nm. |
LED filtering | 630 nm short-pass filter (>OD6 between 655 and 750 nm). |
Signal detection | NIR-enhanced PMT with stabilised power supply |
Detection filtering | 2 x 3 mm RG665 glass filters plus 682 nm, 30 nm half bandwidth interference filter |
Dynamic range | 16-bit ADC provides an effective 15-bit range at each PMT eht setting. The total dynamic range is at least five orders of magnitude |
Power requirements | 18 to 36 VDC operating range Protected to 72 VDC 4.8 W continuous, 5 W peak |
Ambient temperature | -10 ° C to 50 ° C |
Dimensions | Ø 88 mm x 284mm (excluding connectors) |
Act2 Controller
Dimensions | 198 mm (w) x 108 mm (d) x 62 mm (h) |
PC Connection | USB (cable supplied) |
Environmental rating | IP68 (main unit only) |
Power input | 28 V (power brick supplied) |
Outputs | 1 x USB to PC, 1 x FastOcean, 4 x LED units, 2 x peristaltic pumps, 3 x solenoid valves |
LED units (white or blue)
Increments | <4 µmol photons m-2 s-1 |
Maximum output (FLCs/OLCs) | >2,000 µmol photons m-2 s-1 |
Maximum output (Flash O2) | >20,000 µmol photons m-2 s-1 |
Environmental rating | IP68 |