jenway 7310, Operating Manual

Page: 30 / 86

32
7.2 METHOD SETUP
In this measurement mode all of the method setup
parameters are accessed through the scan settings menu.
To open the scan settings menu press the key adjacent to
the
scan settings icon in the expanded operating menu.
7.2.1 Scan Settings
This function enables the graph y-axis, absorbance or % transmittance operating mode, start and end
wavelengths and scan interval to be set. To access this function press the key adjacent to the
scan
settings
icon in the expanded operating menu.
Fig 7.2.1.1 – Scan Settings Menu
7.2.1.1 Selecting Absorbance or % Transmittance
The operating mode is displayed on the left hand side of the menu. The default parameter is absorbance
and pressing the key adjacent to the
ABS icon cycles the operating mode between absorbance and %
transmittance.
7.2.1.2 Setting Start and End Wavelengths
This function enables the start and end wavelengths of the spectrum scan to be set. Model 7310 has a
spectrum range from 320nm to 1000nm; model 7315 has a spectrum range from 198 to 1000nm. To
set the start wavelength in the scan settings menu press the key adjacent to the
wavelength on the far
left of the x-axis. This opens the number entry screen.
Use the keys at the bottom of the screen to select the
digit to be changed and use the keys adjacent to the
arrow icons to increase or decrease the number. Once
the required start wavelength has been entered press the
key adjacent to the
tick icon to save and return to the
scan settings menu.
To set the end wavelength in the scan settings menu press
the key adjacent to the
wavelength icon on the far right
of the x-axis. This opens the number entry screen. Use
the keys at the bottom of the screen to select the digit
to be changed and use the
arrow
keys to increase or
decrease the number. Once the required end wavelength
has been entered press the key adjacent to the
tick icon
to save and return to the scan settings menu.
4
0 0 0
500nm
5 0 0 0
400nm
2.500
-0.500
ABS
350nm 550nm
Tick icon
Maximum Abs/% transmittance
Manual/automatic y-axis scaling
Selecting Abs/% transmittance
Minimum Abs/% transmittance
Setting start
wavelength
Setting end
wavelength
Setting scan interval
09:02
2.500
ABS
-0.500
350 550 450nm