Opti-Sciences, Chlorophyll Meter

Opti-Sciences, Chlorophyll Meter

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Technical Specifications

Measured Parameters: Optical absorbance in two different wavebands: 653 nm (Chlorophyll) & 931 nm (Near Infra-Red).
Measurement Area: 9.52 mm (3/8") diameter circle (71 mm2)
Resolution: .1 CCI unit
Repeatability: +/- 1%
Source: Custom 2 wavelength LED module.
Detector: Silicon photodiode with integral amplifier for absorbance measurement, power monitoring, and temperature compensation.
Storage Capacity: 8 Mbyte of memory for up to 160,000 data measurements, or 94,000 with added GPS data entries.
Data Modes: (3) Single point, user selectable from 1-30 point averaging, and a statistical 10-30 point protocol that asks to replace data points beyond a 2 sigma standard deviation.
User Interface : 128 x 32 pixel graphic display, beep signals, keys for: setup, measurement protocols, diagnostics, data control and user input of alphanumeric comment lines.
I/O: USB 1.1 & RS-232; multi-point file output, single point out on demand, NMEA 0183 compliant for GPS data input.
Temperature Range: 0-50oC.
Temperature Drift: Temperature compensated source and detector circuitry for minimum drift over full range.
Power Source: 9V Alkaline battery.
Auto Off Interval: 4 minutes (no key press or data download).
Size: 152(L) x 82(W) x 25(D) mm
Weight with battery: 162 g