Zuzi 4251/50 Manuel D'instructions page 29

- Select the desired test mode ▼/▲ (2.9) and press ENTER (2.7); the symbol √ will be displayed reside the
selected mode.
- Press RETURN (2.6) to return to the parameter setting display.
Set the upper limit:
- On the parameter setting display, move the cursor with ▼/▲ (2.9) to select Upper limit and press ENTER
(2.7) (Fig. 29).
- Input the value of the upper limit by using the numeric keypad (2.10) and press ENTER (2.7). Note: the
Absorbance measurement range is -0.3/3 and the Transmittance's 0-200.
- If no changes are necessary press RETURN (2.6).
Figure 29
√ Kinetics
Upper limit
Lower limit
Display data
Set the lower limit:
- On the parameter setting display, move the cursor with ▼/▲ (2.9) to select Lower limit and press ENTER
(2.7) (Fig. 30).
- Input the value of the lower limit by using the numeric keypad (2.10) and press ENTER (2.7). Note: the
Absorbance measurement range is -0.3/3 and the Transmittance's 0-200.
- If no changes are necessary press RETURN (2.6).
Figure 30
√ Kinetics
Upper limit
Lower limit
Display data
Sample analysis
After setting the time interval, the total test time and the upper and lower limits, proceed as follows:
Press RETURN (2.6) to return to the pre-test interface.
Put the blank sample into the light path and press ZERO (2.3)
Put the sample into the light path and press START/STOP (2.5) to enter the results display.
Press START/STOP (2.5) again to start testing (Fig. 31). As test goes on, the kinetics curve and the time of analysis
will be displayed.
To interrupt the test press START/STOP (2.5); by pressing again this button, the test will start again from the begin-
ning.
Figure 31
Kinetics
100.0 T%
546.0 nm
Note: the curve can not be printed; to check data of each measurement, select Curve data on the parameter set-
ting display.
To display data of each measurement:
Press SET (2.1) to go into the parameter setting interface.
Move the cursor with ▼/▲ (2.9) to select Curve data and press ENTER (2.7).
Data of the different measurements will be displayed in groups of 6 (Fig. 32).
Press PRINT (2.4) to print data.
Version 2 Nov-10
Kinetics: Abs.
ENTER
Upper= 3.000
Please Input New
Upper=
RETURN
Kinetics: Abs.
ENTER
Lower= -0.500
Please Input New
Lower=
RETURN
Kinetics
START
546.0 nm
RETURN
Instruction manual 54251050
3.000
-0.500
0s 60s
50s
546.0 nm
Page. 29