Provides the best of both worlds - FV/FM & calibrated Strasser OJIP measurements
The OS30p+ provides a graphic color display of both FV/FM protocol measurements & Strasser OJIP protocol measurements. FV/FM is the most used chlorophyll fluorescence measuring protocol in the world and the OS30p+ makes this and Strasser OJIP very affordable, in part, by elimination of an expensive fiber-optic light guide and the introduction of a short, dark clip friendly, optical probe.
The OS30p+ is a modulated fluorometer with a calibrated red actinic LED light source designed to provide optimal measurement of both FV/FM and Strasser protocol OJIP parameters. The instrument provides a graphic display for the FV/FM protocol and a color overlay display of OJIP graphs. Direct readout is available for FO, FM, FV/FM, & FV/FO. Direct readout is also available for the most used Strasser OJIP protocol parameters, including: PIABS, Vj, Mo, Area above the curve, O, t100, K, J, I, P, & tFM . All of the Strasser OJIP protocol parameters are reported & arranged in the data file for easy spider graphing and trace overlay graphing. Output is by USB port.
FV/FM, FV/FO Test
600- 6000 μmols set from 10% to 100%
Saturation light source:
Array of red LEDs 660 nm.
Modulated light source:
Red 0.2 to 1.0 μmols.
Detector and Filter:
Pin photodiode with 700-750 nm band pass filter
0.1 seconds to 1.5 seconds. The default saturation pulse duration is set at 1.0 second; however, the software takes a rolling eight point 25 ms average to determine FO, and FM, making it idea for both algae and land plants.
Modulated light adjustment:
Manual adjustment from 30% to 80%
Parameters measured and graphed:
FO, FM, FV/FM, FV/FO
Actinic light intensities:
6000 μmols, 4500 μmols, 3500 μmols, 3000 μmols, 2500 μmols, 1000 μmols, 875 μmols, 525 μmols. An array of red LEDs at 650 nm are used for actinic illumination.
Pin photodiode detector with 700-750 nm band pass filter using red pulse modulated light, and variable sampling rate from 10μs to seconds.
JIP test 3 - 300 seconds
JIP Test parameters measured:
Direct readout parameters: O, t100μs, t300μs (or K), t2ms (or J), t30ms (or I), P, tFM, A (area above the curve), MO (or RC/ABS), PIABS (or performance index) FO, FM, FV/FM, FV/FO. Up to 32 OJIP traces can be overlaid and displayed on the graphic display screen, Colors on the screen start to repeat after 16 traces. FO is measured not estimated.
Measured parameters reported to the data file: ABS/RC, TRO/RC, DIO/CS, ETO/RC, TRO/ABS, ETO/TRO, ETO/CS, RC/CSO, RC/CSM, S, M, T are also measured and recorded in the data file, but not on the measuring screen.
Up to 32 traces can be overlaid on the graphic display screen, and up to 32 traces, per file name, can be stored for graphic overlay of traces in a single data file. Colors start to repeat on the viewing screen after 16 traces are overlaid. This limitation does not exist in the data file. If traces are not stored, thousands of measurement parameter sets can be stored in a single data file for spider graphing. The number of data files are only limited by machine memory limits.
Color Graphic Display
Up to 160,000 measurements. Up to 32 traces can be stored with one data file name. Hundreds of traces can be stored in multiple data files, with different names.
NiMH battery pack with a battery life of 8 hours between charges.
18 cm, 7 cm, 6 cm.
1.25 lbs., with carrying case and accessories - 4 lbs.
Case dimensions: 36 cm, 28 cm, 15 cm.
Protective transport case included
Opti-Sciences, Inc. 8 Winn Avenue Hudson NH 03051 USA (603)883-4400