Jenway Genova Nano German - Manual (Page 29)

6.2.2.3 Using a Standard
The standard menu enables the value of a standard to
be entered. This function is accessed by pressing the key
adjacent to the standard icon. This opens the extended
number entry screen. Use the keys at the bottom of the
screen to select the digit to be changed. The key below the
digits must be pressed twice to select the adjacent digit.
For example 00 the first press of the key alters 10, the second press alters 01. Use the keys adjacent to
the arrow icons to increase or decrease the selected number. Standard values from 0.001 to 1000 can be
entered. The standard value can be reset to one by pressing the key adjacent to the 001 icon. Once the
standard value has been entered press the key adjacent to the tick icon to save and return to the settings
menu. The entered value is displayed in the settings menu adjacent to the standard icon.
A standard value should only be entered if the factor is not known. If the factor is known the standard
value should be set to 1.000.
6.2.2.4 Using a Factor
The factor menu enables a factor to be entered. This
function is accessed by pressing the key adjacent to the
factor icon. This opens the extended number entry screen.
Use the keys at the bottom of the screen to select the digit
to be changed. The key below the digits must be pressed
twice to select the adjacent digit.
For example 00 the first press of the key alters 10, the second press alters 01. Use the keys adjacent to
the arrow icons to increase or decrease the selected number. Factor values of 0.001 to 10,000 can be
entered. The factor value can be reset to one by pressing the key adjacent to the 001 icon. Once the
factor has been entered press the key adjacent to the tick icon to save and return to the settings menu.
The entered value is displayed in the settings menu adjacent to the factor icon.
If the factor is not known a standard should be measured in order to calculate the factor. If a standard
is used the factor value should be set to 1.000.
6.3 CALIBRATION
In the concentration measurement mode calibrations
against a standard or a factor can be performed following
a zero calibration. If the factor is not known calibration
against a known standard is performed in order to calculate
the factor. However if the factor is known there is no need
to calibrate using a standard.
The calibration must be performed at the same wavelength at which the sample will be measured.
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