Table of Contents
1 Specifications on page 3
2 General information on page 4
3 Installation on page 10
4 Startup on page 13
5 Operation on page 13
6 Maintenance on page 17
7 Troubleshooting on page 22
8 Replacement parts and accessories on page 23
A Instructions for laboratory measurements
on page 26
Section 1 Specifications
Specifications are subject to change without notice.
The product has only the approvals listed and the registrations, certificates and declarations officially
provided with the product. The usage of this product in an application for which it is not permitted is
not approved by the manufacturer.
Specification Details
Measuring principle UV absorption measurement, reagent-free
Measuring method NT3100sc: Sludge compensated, 2-channel beam path
NT3200sc: Sludge compensated, 3-channel beam path
Measuring path
1
1 mm (0.04 inches), 2 mm (0.08 inches) or 5 mm (0.20 inches)
Measuring range NT3100sc NT3200sc
1 mm path: 0.1 to 90 mg/L NO
3
–N 1 mm path: 0.3 to 70 mg/L NO
3
–N, 0.4 to
92 mg/L NO
2
–N
2 mm path: 0.05 to 50 mg/L NO
3
–N 2 mm path: 0.15 to 34 mg/L NO
3
–N,
0.15 to 61 mg/L NO
2
–N
5 mm path: 0.02 to 25 mg/L NO
3
–N 5 mm path: 0.07 to 17 mg/L NO
3
–N,
0.06 to 23 mg/L NO
2
–N
Limit of detection (LOD)
2
1 mm path: 0.1 mg/L NO
3
–N 1 mm path: 0.3 mg/L NO
3
–N, 0.4 mg/L
NO
2
–N
2 mm path: 0.05 mg/L NO
3
–N 2 mm path: 0.15 mg/L NO
3
–N, 0.15 mg/L
NO
2
–N
5 mm path: 0.02 mg/L NO
3
–N 5 mm path: 0.07 mg/L NO
3
–N, 0.06 mg/L
NO
2
–N,
Accuracy
2
1 mm path: ± 5% of the measured value
± 0.1 mg/L NO
3
–N
1 mm path: ± 4% of the measured value
± 0.6 mg/L NO
3
–N,
± 4% of the measured value ± 0.6 mg/L
NO
2
–N
2 mm path: ± 4% of the measured value
± 0.1 mg/L NO
3
–N < 22 mg/L,
±5 % of the measured value ± 0.1 mg/L
NO
3
–N ≥ 22 mg/L
2 mm path: ± 3% of the measured value
± 0.3 mg/L NO
3
–N,
± 3% of the measured value ± 0.2 mg/L
NO
2
–N
5 mm path: ± 3% of the measured value
± 0.05 mg/L for NO
3
–N ≤ 5 mg/L,
± 3% of the measured value ± 0.1 mg/L
for 5 mg/L < NO
3
–N < 13 mg/L,
± 5% of the measured value ± 0.1 mg/L
for NO
3
–N ≥ 13 mg/L
5 mm path: ± 3% of the measured value
± 0.1 mg/L NO
3
–N,
± 5% of the measured value ± 0.15 mg/L
NO
2
–N ≤ 6 mg/L,
± 5% of the measured value ± 0.24 mg/L
NO
2
–N > 6 mg/L
1
Based on the probe version
2
Measured with mono standard solution NO
3
–N for NT3100sc and with mono standard solutions
NO
3
–N and NO
2
–N for NT3200sc under laboratory conditions.
English 3
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