ORBECO SP600, Instruction Manual, Page: 308 / 334

306 SP600 Spectrophotometer 01/2008
User-Concentration-Methods
It is possible to enter and store up to 10 User-Concentration-Methods.
Therefor you need 2 to 14 standards of known concentration and one blank (deionized water
or reagent blank value). The Standards should be measured with increasing concentrations
and from the brightest to the darkest colouration.
The measuring range for „Underrange“ and „Overrange“ is defined with –0.050 Abs* and
2.500 Abs*. After selection of a method the concentration of the lowest and highest used
standard is displayed as measuring range. The operation range should be within these range
to achieve best results.
Wavelength can be determined with Mode 53 „Spectrum”
*Abs = E (displayed)
Entering a User Concentration:
Press [MODE] [6] [4] keys.
Confirm with [ ] key.
Enter-Procedure:
The display shows:
Enter a method-number in the range from 850 to 859,
e.g.: [8] [5] [0]
Confirm with [ ] key.
Note:
if the entered number has already been used to save a
concentration the display shows the query:
• Press [0] or [ESC] key to go back to method-No. query.
• Press [1] key to start entry-mode.
Enter the required wavelength in the range from 330 to 900 nm,
e.g.: 550 nm.
Confirm with [ ] key.
Press [ ] or [ ] keys to select the required unit.
< User concentr.>
choose no.: ____
(850-859)
wavelength: ______ nm
(330-900 nm)
choose unit:
>>
mg/l
g/l
mmol/l
mAbs
µg/l
E
A
%
Overwrite conc. meth.?
YES: 1, NO: 0
8 5 0
Mode
6 4
5 5 0