YSI IQ SensorNet NitraLyt Sensor - Manual (Page 31)

NitraLyt
®Plus
700 IQ Matrix adjustment, check and calibration
4 - 7 ba76004e01 01/2012
4.2.4 Program extension
The simple matrix adjustment, as described in the sections 4.2.2 to
4.2.3, will in most cases lead to precise measurement results. In some
cases, special effects in the matrix can cause the real characteristic
curve of the ISE measurement to deviate very much from the factory
characteristic curve. This can lead to measured values that are not
precise enough.
From sensor software version 3.20, the setting table provides the
Program Level setting, which can be used to enhance the functionality
of the matrix adjustment. Program Level 0 is the simple matrix
adjustment as described in the sections 4.2.2 to 4.2.3. The program
levels 1 and 2 provide tools with which the real characteristic curve of
the ISE measurement can be better approximated.
For more detailed information please address your YSI contact person.
Note
To restore the factory characteristic curve, select Program Level 0 in
the setting table and then quit the menu with Save and quit.