LI-COR LI-6400, Manual

Page: 220 / 846

Environmental Control
OpenÕs Control Manager
7-6 Using the LI-6400
7
Then, the flow/humidity control function key will show the humidity target
as the latest value of the variable we specified.
When a control has a variable target, the 30 second ISR for that control is
skipped; instead, the control manager retargets the control to the current value
of the specified variable. The end result is that every 30 seconds
while the
control manager is active , the target for the control will change. When the
flow/humidity control function key is pressed again, the control menu will
show the variable name and target value (Figure 7-6).
and if we select it again, the target default will indicate the variable target
(Figure 7-7).
*RH= *CO2S= Temp Lamp
<range> 63 % 350µml Off Off
2
Latest value of xtrnRH
Figure 7-5. When a control has a variable target, the value is updated every
30 seconds. This value is shown on the control key label.
N) None (Pump Off)
F) Flow rate 500 µmol/s
H) H2O_sample 20.0 mmol/mol
R) RH_sample = xtrnRH 59 %
V) VPD( Tleaf¡C) 1.0 kPa
Humidity Control Options & Targets
Target Variable and Value
Figure 7-6. When a control has a variable target, the variable name and
the current value are shown in the control screen.
#1001 (xtrnRH)
RH_sample
Figure 7-7. When a control has a variable target, the default value reflects
the variables ID value, and label.