Teledyne Foxy R1 Instruction Manual page 86

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Foxy R1 and Foxy R2 Fraction Collectors
Appendix A Icon Glossary and Menu Charts
A-4
Table A-1 Touch screen display icons (Continued)
Icon Description
Touch the Volume icon to collect fractions based
on an external pump volume count. Touching this
icon opens a screen from which you can set the
fraction and delay volumes as a number of pump
counts. If selected, the display shows a border
around this icon.
Each touch of the Volume Select icon toggles
between volume setting modes. The current
selection is indicated by the surrounding border.
When the hourglass (left) is selected, enter the
delay volume. When the tube (right) is selected,
enter the fraction size. The units for each setting
reflect the selected Time, Drop, or Volume, frac-
tion collection mode.
Touch the Threshold Peak Detection icon to con-
figure the threshold settings. A border around this
icon indicates that threshold peak detection is
enabled. When editing the threshold settings,
touch this icon to toggle between collection
modes. The left icon indicates that only peak flu-
ids will be collected; non-peak fluids are diverted
to waste. The right icon indicates that peak and
nonpeak fluids will be collected.
Threshold detection monitors the percentage of
an analog input signal. The threshold condition is
true when the input signal exceeds a user-set
value. However, the peak state may or may not
be true depending on the Threshold Detection
Options.
Touch the Threshold Detection Options icons to
select a detection mode. The top icon indicates
that threshold peak detection is OFF. The middle
Union icon indicates that threshold peak detec-
tion is enabled. If the value is exceeded, the peak
state will be true regardless of any other detec-
tion mode (a logical OR). The bottom Intersection
icon indicates that peak detection is enabled. If
the value is exceeded, the peak state is true only
when other enabled detection conditions are met
(a logical AND).
Touch the Peak Width Detection icon to configure
the peak width settings. A border around this icon
indicates that peak width detection is enabled.
When editing the peak width settings touch the
icon to toggle between collection modes. The left
icon indicates that only peak fluids will be col-
lected; non-peak fluids are diverted to waste. The
right icon indicates that peak and nonpeak fluids
will be collected.
In this mode, the system uses a user-specified
peak width value and an algorithm to determine a
range of possible input signal slopes. A peak
width condition is true when the analog input sig-
nal rises at a rate within this range. However, the
peak state may or may not be true depending on
the Peak Width Detection Options.