Xylem YSI Alyza IQ NH4, Operation Manual

Page: 155 / 170

Alyza IQ NH4 Technical data
155
ba76202d02 05/2020
7 Technical data
7.1 Measuring characteristics NH4-N / NH3-N , NH4
Measuring method Berthelot method in conjunction with an LED photometer
Measuring ranges
and resolution
All specifications concerning the measuring accuracy refer to the use of suitable
standard solutions.
Response time t90 < 10 min
Process variation
coefficient
Detection limit
Measur-
ing
range Measuring
mode (cita-
tion form) Measuring
ranges Reso-
lution Accuracy
Measurin
g range 1
NH4-N and
NH3-N
0,02 .. 5,00 mg/L
0,02 .. 5,00 ppm 0.01 ±2 %, ±0.02
±2 %, ±0.02
NH4 0,03 .. 6,00 mg/L
0,03 .. 6,00 ppm 0.01 ±2 %, ±0.03
±2 %, ±0.03
Measurin
g range 2
NH4-N and
NH3-N
0,10 .. 20,00 mg/L
0,10 .. 20,00 ppm 0.01 ±3 %, ±0.10
±3 %, ±0.10
NH4 0,13 .. 25,00 mg/L
0,13 .. 25,00 ppm 0.01 ±3 %, ±0.13
±3 %, ±0.13
Measuring
range Process variation coefficient
1 < ±2%
2 < ±3%
Measuring
range Detection limit
1 ≤ 0.01 mg/L NH4-N / NH3-N
2
≤
0.03 mg/L NH4-N / NH3-N