CHAPTER 7 THE MODE-MENU
sufficient for so-called "rapid light curves". It is limited to 3 min in
order to avoid excessive internal heating.
The LC-INT determines the starting
intensity which can be chosen between
settings 1 to 5. LIGHT CURVES always involve 8 intensities. Hence,
more emphasis may be put either on the linear rise or on the plateau
region of the curve.
20: LC-INT: 3 (SET)
F: 448 745Y 6.2E 20L
This function starts registration of a dark-
to-light INDUCTION CURVE with
Saturation Pulse Quenching Analysis. Normally dark-adapted
samples are used. First a saturation pulse is given for determination
of Fo, Fm and Fv/Fm. After a certain dark time, set by IND. DELAY
(menu point 23), ACTINIC LIGHT at a given intensity (ACT-INT,
menu point 15) is turned on and 8 saturation pulses are applied at
intervals determined by IND.WIDTH (menu point 24).
21: IND.CURVE: OFF(SET)
F: 448 745Y 6.2E 20L
In addition to the recording of dark-to-light
INDUCTION CURVE (as described for
menu point 21), after turning off the ACT.-LIGHT 6 saturation
pulses are applied at 10 s, 30 s, 60 s, 2 min, 5 min and 10 min to
assess the dark recovery of fluorescence parameters.
22: IND.C+REC: OFF(SET)
F: 448 745Y 6.2E 20L
Delay time between first saturation pulse
and turning-on of ACT-LIGHT. The
default setting is 40 s. Possible settings range from 5 s to 10 min.
23:IND-DELAY 0:40 (SET)
F: 448 745Y 6.2E 20L
Time interval between two consecutive
saturation pulses during recording of
IND.CURVE. The default setting is 20 s. Possible settings range
from 5 s to 3 min.
24:IND-WIDTH 0:20 (SET)
F: 448 745Y 6.2E 20L
Function to sample the minimal
25:Fo: 530 Fm:2650(SET)
F: 448 745Y 6.2E 20L
22