Zuzi 4251/50 Manuel D'instructions page 26

result will be displayed (Fig. 16). The procedure is the same for all samples.
To print results, press PRINT (2.4).
Figure 16
Standard curve
0.000 Abs.
0.000 ml/l
546.0 nm
2.2 Coefficient method
Select Coefficient and press ENTER (2.7); the equipment will display the formula selecting interface (Fig. 17).
Figure 17
√ Quantitative
Standar curve
Coefficient
Select the desired type of formula by using the keypad (2.10) or with ▼/▲ (2.9) and press ENTER (2.7); the
Coefficient pre-test interface will be displayed (Fig. 18).
Figure 18
Coefficient
1. C=KA+B
2. A= KC+B
Note: Operation is the same for both formulas since they can be converted one into each other; select one or other
only depends on user's preferences.
Set wavelength
On the pre-test interface, press GOTO λ (2.2) and input the desired wavelength value by using the keypad (2.10).
Press ENTER (2.7) to set the input value.
Set parameters
Before performing the quantitative analysis it is necessary to set the concentration unit and the value of coeffi-
cients K and B of the equation.
On the pre-test interface, press SET (2.1); the equipment will enter the parameter setting display (Fig. 19).
Figure 19
Coefficient: A=KC+B
0.001
1.200
546.0
Set coefficient K:
- On parameter setting display, move the cursor with ▼/▲ (2.9) to select Coefficient K and press ENTER
(2.7) (Fig. 20).
Figure 20
√ Coefficient
Coefficient K
Coefficient B
Conc. Unit
Page. 26
ENTER
RETURN
ENTER
RETURN
Coefficient: C=KA+B
0.001 Abs
1
1.000 mg/l
546.0 nm
ENTER
Abs
mg/l
nm
RETURN
ENTER
RETURN
Instruction manual 54251050
546.00 nm -0.000 Abs.
No. WL Abs. Conc
1 546.0 0.001 1.0 g/l
Coefficient
1. A= KC+B
2. C=KA+B
√ Quantitative
RETURN
√ Coefficient
Coefficient K
Coefficient B
Conc. Unit
Coefficient
K= 4.000
Please Input New
K=
Standar curve
Coefficient
Version 2 Nov-10