Xylem YSI Alyza IQ NH4, Руководство по эксплуатации

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Measurement / Operation Alyza IQ NH4
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Messbereich
With the setting
Messmodus :
NH4-N
Depending on the
Messmodus
setting,
different measuring ranges can be
selected.
For each measured parameter, a small
and a large measuring range can be
selected.
To change between the large and small
measuring range, different ChemBags
have to be installed (see section 5.6
Changing the measuring range,
 117).
0,02 .. 5,00 mg/L
0,10 .. 20,00 mg/L
0,02 .. 5,00 ppm
0,10 .. 20,00 ppm
With the setting
Messmodus :
NH4
0,03 .. 6,00 mg/L
0,13 .. 25,00 mg/L
0,03 .. 6,00 ppm
0,13 .. 25,00 ppm
With the setting
Messmodus :
NH3-N
0,02 .. 5,00 mg/L
0,10 .. 20,00 mg/L
0,02 .. 5,00 ppm
0,10 .. 20,00 ppm
Offset-Korrektur
With the setting
 Messmodus
NH4-N
or
NH3-N
and
 Messbereich
0,02 .. 5,00
mg/L
(small MR)
- 0.50…
0.00
…+ 0.50
mg/L
For other measuring modes and mea-
suring ranges, the value ranges are
adjusted.
With the setting
 Messmodus
NH4-N
or
NH3-N
and
 Messbereich
0,10 ..
20,00 mg/L
(large MR)
- 2.00…
0.00
…+ 2.00
mg/L
Setting menu Possible values Description
Setting menu (general set-
tings)
Possible values Description
Messintervall
10
, 15, 20, 30, 45,
60 min
2, 4, 6, 8, 12 h
Measuring interval
Dämpfung Aus
Signalglättung
Medianfilter
Methods for filtering the signals
A signal filter in the sensor reduces the
limits of variation of the measured
value.
With the setting
Signalglättung :
The signal filter is essentially charac-
terized by the response time t90.
Response time of the signal filter (in
seconds).
This is the time after which 90 % of a
signal change is displayed.
Ansprechzeit t90
100
, 200, 300, 400 s