500 D 01/2012
10a
3. Press key
U
first measuring range is displayed with dimension; press key
U
, until required measuring range and dimension appear (can be repeated
endlessly in roll mode or back with key
U
).
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0041 AMMONIUM 10
0.2-8.0mg/L NH4N
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0.2-10.0mg/L NH4
This can also be attained if the fourth digit of the 4-digit test number, e.g.
L
, is
entered straight away.
4. Confirm required measuring range and dimension by pressing key
OK
(does not
apply when 4 digits are entered). The interference filter is automatically turned
into measuring position.
5. Reaction time is displayed. When using test tubes with barcode, reaction time
starts automatically.
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React.time
15’00
6. Place test tube with sample in photometer, start reaction time with key
OK
or skip
with key
U
.
The test tube with base line value (NULL) is not used.
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0001 place
3,7 mg/L
NH4
1+0
If a
✔
is displayed in the upper status line between time and battery indicator,
automatic storage of results is activated (see Configuration chap. 3.5.3). This
means, that the respective result is automatically stored when the cuvette is
removed from the photometer. If you do not want to store the result, just press
key
MEM.
,
and this value is not stored. On the other hand, if storage is deactivated,
the actual result can be stored by pressing key
MEM.
.
7. For entering a sample number press key
F1
. A sample number may have up to
4 digits.
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0001 place
1+0
sample No.:
_
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0001 place
1+0
sample No.:
123_
