18
8. Select Concentration mode by pressing (C)
button and key in the concentration of the
Standard solution. Press the ENTER button.
The display should show:
9. Place the cuvette with unknown solution to be
measured in sample compartment and close it.
The display will show the Concentration of the
solution immediately. Record the value and
remove the cuvette.
10. Repeat set 9 for further samples to be tested
at the same wavelength. For a different wave
length, steps 1 through 9 should be repeated.
11.After the test is completed, turn off the power;
or, set the instrument to STANDBY mode if
further tests will be performed soon. (Refer to
Standby mode section.)
Factor mode
1. Fill a cuvette with the solvent that will be used
to zero the spectrophotometer. This is the
blank (or background) solvent that your
sample is dissolved in.
2. Place the cuvette in the cuvette holder in the
sample compartment. Close the sample com-
partment lid.
3. Press (
λ
nm) button, enter the numerical value
(330-999) of the wavelength and press the
ENTER button. If a mistake is made in the key-
in process, press the ESC button to clear the
display for a new entry.
XXX
OC
XXX
XXXXX
C
Note
1.
If a mistake is made in the key-
in, press ESC button to clear
for new entry.
2.
The Standard value range is 0-
19999.
3.
If so desired, press (F) button
and record the calculated
FACTOR value in memory to
enable measurement with
same reagent to be made at
later time without
restandardization. The calcu-
lated FACTOR value range
should be at 1-19999.
O
PERATION
