PerkinElmer aanalyst 200 User Manual page 174

Touch Screens
Items on this page
Integration Time
(sec)
Replicates
Read Delay (sec)
Print
Sample Handling
Measurement
(MHS only)
Smoothing Points
(MHS only)
Peak Plot Scale
(MHS only)
7-16
Touch-entry field that displays the selected integration time. This is
the time period over which the spectrometer takes a measurement. The
longer the time, the greater is the level of signal integration.
To change the integration time, touch this field to display the number
pad dialog. Enter the required integration time and then touch OK.
Touch-entry field that displays the selected number of replicate
measurements. The selected number of measurements is performed on
each solution (blank, standard, and test sample).
To change the number of replicates, touch this field to display the
Replicates dialog. Enter the required number of replicates and then
touch OK.
Touch-entry field that displays the selected read delay. This is the time
period that the spectrometer waits before it starts to measure the
signal. A read delay is typically used to allow the flame to stabilize
after a change of solution.
To change the read delay, touch this field to display the Read Delay
dialog. Enter the required read delay and then touch OK.
This item allows you to select the information you would like to have
printed together with the analytical mean and statistical results. You
select whether printing should be on or off via the Printer On/Off
button on Analyze page.
When the (optional) autosampler is installed, you can choose between
manual data display, manual continuous graphics display, and
autosampler.
Peak Height measures the largest signal during the Read Time after
the selected smoothing is applied. Peak Area measures the area under
a peak in absorbance-seconds.
Smoothing Points uses the Savitsky-Golay smoothing algorithm to a
group of n data points; where n can be 0, 5, 9, 19, and 37. Smoothing
is applied to the geographical display and used in the calculation of the
Peak Height, when the Peak Height measurement mode is selected.
Automatic sets the scale based on the highest point on the plot being
displayed. Fixed absorbance is manually setting peak scales.