optic2 - optical parameters measured by a Satlantic OCR sensor

RBR data loggers support the integration of the Satlantic OCR-504 sensor for measurement of optical parameters such as PAR, irradiance, and radiance.

This is not a 'corrected' output channel, as it has no dependence on any other channel in the logger. However it does make use of the x-group of coefficients, as a convenient means of implementing an internal scale factor. The c-group coefficients correspond directly to sensor coefficients provided by the manufacturer; the x0 coefficient is used only as an internal scaling factor, and its value must not be changed.

The equation is:

where

R is the logger's reported voltage ratio,
x0 has the fixed value 2^32 (4294967296) and must not be changed.
c0 corresponds exactly to the Satlantic coefficient a0,
c1 corresponds exactly to the Satlantic coefficient a1
c2 corresponds exactly to the Satlantic coefficient Im.

CODE

>> calibration 5 type
<< calibration 5 type = irr_00

Confirm the channel type.

CODE

>> calibration 5 datetime = 20171201000000, c0 = 2147559862.6, c1 = 1.52173169935e-7, c2 = 1.161
<< calibration 5 datetime = 20171201000000, c0 = 2.1475600e+009, c1 = 152.17317e-009, c2 = 1.1610001e+000

Set the core coefficients for the sensor output.

CODE

>> calibration 5
<< calibration 5 type = irr_00, datetime = 20171201000000, c0 = 2.1475600e+009, c1 = 152.17317e-009, c2 = 1.1610001e+000, x0 = 4.2949670e+009

Request confirmation of all calibration coefficients.