500 D 01/2012
21a
3.5.4
Special (user-defined) methods
The
NANOCOLOR
®
500 D offers the possibility to program up to 100 user-specific
methods. These methods can be defined as linear (factor) or as non-linear methods
(up to 4th degree functions). For defined methods the same options are available
as for the pre-programmed methods (i. e. sampling location, dilution, storage etc.).
Selection of a special method
Special methods are activated from the main menu by pressing
17.11.11 16:06
Method:
P__
special method
New method
Call up new method – for example P56 – by pressing key and 56.
17.11.11 16:06
Method:
P56
new method ?
Now the method parameters can be entered. For entering text, selection of filter,
cuvette size, factor, measuring direction and range, dimension incl. supplement and
reaction time, every letter or number can be entered directly via the keyboard.
When the display asks <factor linear ?>, you can either press key
OK
and enter a
linear factor (
β
= E x F) where the position of the decimal point of the factor deter
-
mines the number of decimals of the display, or you can press keys
U
/
U
and
enter a polynomial up to the 4
th
order (
β
= F
4
x E
4
+ F
3
x E
3
+ F
2
x E
2
+ F
1
x E + F
0
).
Pressing key
U
before entering any of the polynomial factors changes the sign
of the respective term. After all terms of the polynomial have been entered, the
number of decimals for the display and the measuring direction (+ = increasing, – =
decreasing, ± = both directions) are entered.
At any time, a wrong entry can be deleted using key
U
and then corrected. Also, by
pressing
ESC
, programming can be aborted at any time.
After pressing
and entering the two digits for a programmed user-defined meth
-
od, you can select several options in the roll mode using keys
U
/
U
.
