Operation
XD 7500
36
ba77191e01 - 71310060
04/2018
4.3.3
Display settings
Here you can adjust the display brightness to the lighting conditions.
4.4
Zero adjustment
A valid zero adjustment is required for the calculation of measured values in
the modes,
Concentration
,
Absorbance / % Transmission
,
Special / Multi
wavelengths
and
Kinetics
. With a zero adjustment, the absorbance of a cell
filled with distilled water ("zero cell") is measured and stored as the zero
value.
Factory zero adjust-
ment for concentra-
tion measurements
For all (
Concentration
mode) there is a factory zero adjustment already when
the instrument is delivered. We recommend replacing it with a zero adjust-
ment of your own. If a zero adjustment exists already for a method, the date
and time of the last zero adjustment are displayed in the top right area of the
display.
4
Enter the current time with
<0...9>
and confirm.
The input field closes.
The time is accepted.
1
Select and confirm
Brightness
.
A slide control for the display
brightness appears.
2
Set and confirm the display bright-
ness with
<
><
>
.
Date/Time
16.01.17 9:52
Date
16.01.2017
Time
9:52:09
OK
Time
09
: 52 : 09
<HOME>
[General setup]
–
Display settings
Display settings
16.01.17 9:52
Brightness
50 %
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