Endress+Hauser Viomax CAS51D - Page 36

Technical data Viomax CAS51D
36 Endress+Hauser
12.2 Performance characteristics
Reference operating
conditions
20°C (68 °F), 1013 hPa (15 psi)
Measured error
6)
Nitrate For 0.1 to 50 mg/l NO
3
-N (2 mm cuvette gap):
2 % of full-scale value above 10 mg/l
±0.2 mg/l below 10 mg/l
For 0.01 to 20 mg/l NO
3
-N (8 mm cuvette gap):
2 % of full-scale value above 2 mg/l
±0.04 mg/l below 2 mg/l
SAC 2 % of full-scale value when measuring with potassium
hydrogen phthalate (KHP) as the standard
Repeatability
6)
Nitrate
At least ±0.2 mg/l NO
3
-N
SAC
0.5 % of end of measuring range (for homogeneous media)
Detection limits Nitrate
• CAS51D-AAA1
0.003 mg/l NO
3
-N
• CAS51D-AAA2
0.013 mg/l NO
3
-N
SAC
In relation to the standard potassium hydrogen phthalate (KHP):
• CAS51D-AAC1
0.045 mg/l COD
• CAS51D-AAC2
0.3 mg/l COD
• CAS51D-AAC3
1.5 mg/l COD
Detection limits Nitrate
• CAS51D-AAA1
0.01 mg/l NO
3
-N
• CAS51D-AAA2
0.043 mg/l NO
3
-N
SAC
In relation to the standard potassium hydrogen phthalate (KHP):
• CAS51D-AAC1
0.15 mg/l COD
• CAS51D-AAC2
1.0 mg/l COD
• CAS51D-AAC3
5.0 mg/l COD
Long-term drift Nitrate
Better than 0.1 mg/l NO
3
-N over one week
6) The measured error includes all of the sensor's and transmitter's uncertainties (measuring chain). It does not include any uncertainties resulting
from the reference material or from any necessary adjustment.