XD 7500
Operation
49
ba77191e01 - 71310060
04/2018
The photometer is ready for mea-
surement.
1
Open the settings menu with
[Setup]
.
2
Select and confirm
Sample blank
value
.
3
Insert the cell with a suitable blank
sample.
The first single measurement for
the sample blank value takes
place.
The following data is displayed as
the result:
– The measured absorbance
from the (last) single measure-
ment.
– The median from all single mea-
surements carried out up to
now.
4
If necessary, make additional sin-
gle measurements for the median
value formation with
[Next meas.]
or
discard the last single measure-
ment with
[Discard]
.
5
To accept the median value, press
[Apply]
.
The photometer is ready for mea-
surement.
The use of the sample blank value
is indicated by [SB] in the top right
corner of the display.
Concentration
16.01.17 9:52
To start measurement,
insert cell or press <START/ENTER>
NH
4
-N
16 mm
0.02 - 2.50 mg/l
Setup
Method list
Citation form
Unit
Sample blank value
16.01.17 9:52
To start measurement,
insert cell or press <START/ENTER>
NH
4
-N
16 mm
0.02 - 2.50 mg/l
Sample blank value
16.01.17 9:52
Last measured absorbance
0.115
Median
0.115 (1 Measurement(s))
NH
4
-N
16 mm
0.02 - 2.50 mg/l
Next meas.
Discard
Apply
Concentration
16.01.17 9:52
[SB]
To start measurement,
insert cell or press <START/ENTER>
NH
4
-N
16 mm
0.02 - 2.50 mg/l
Setup
Method list
Citation form
Unit
