6400-40 Leaf Chamber Fluorometer

There are two separate items that have calibration requirements in this accessory: the light source, and the fluorometer.

Light Source Calibration

The light source consists of red and blue LEDs, and its calibration requirements are similar to the 6400-02. One difference, however, is that the red and blue LEDs are independently controlled, and thus each has its own calibration. See Calibrate....

Fluorescence Calibration

The fluorometer part of the LCF only requires zeroing. See Zero Fluorescence Signal.