Jenway 7315 Manual Italian - Manual (Page 40)

40
8.2.2.3 Changing the Resolution
The resolution of the concentration can be selected from 1, 0.1, 0.01 or 0.001 by repeat presses of the
key below the
resolution icon.
8.2.2.4 Selecting Absorbance or % transmittance
The operating mode can be changed between absorbance or % transmittance by pressing the key below
the
Abs or %T icon. Repeat presses will cycle between absorbance or % transmittance.
8.2.2.5 Adding Standards
This function enables standards to be added which will
be used to create the standard curve. Before creating a
new standard curve the concentrations of the standards
to be measured must be entered here. To enter the
concentration of the first standard press the key adjacent
to the first concentration in the table.
This opens a 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 number has
been entered press the key adjacent to the
tick icon to
save the changes.
The photometric values of the standards can also be
entered if known. To enter the photometric value press
the key adjacent to the photometric value in the table that
corresponds to the relevant concentration; 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.
The positive sign can be changed to a negative sign by pressing the key below the + icon. Once the
required number has been entered press the key adjacent to the tick icon to save. When the required
resolution, units, number of standards, operating mode and standard concentrations have been set
press the key adjacent to the
tick icon to save and return to the expanded operating menu.
8.2.3 Standard Curve
This function enables the current standard curve to be
viewed, a new standard curve to be created, the curve
fit to be adjusted and the curve statistics to be displayed.
To access this function press the key adjacent to the
standard curve icon in the expanded operating menu.
ppm ABS
0.10
0.20
0.30 0.100
0.200
0.300
1
2
3
0 + 00 . 0 10
1 + . 0 0 0
ABS
-0.000
0.000
400
09:02
ppm
ABS
nm