
IQ SENSOR NET Controller 281
Universal monitor DIQ/S 281-CR2. The new system 281 – the digital and cost-efficient single parameter measuring point with proven IQ Sensor Net technology and IQ sensors for the standard parameters.
Digital, optical sensor for the IQ SENSOR NET
NitraVis® 700 IQ (TS): Sensor with integrated ultrasonic cleaning for the reagent-free measurement of nitrate and suspended solids (optional) – optimized for municipal wastewater treatment systems:
• Optical procedures – no reagents
• Measurement directly in the medium
• Maintenance-free WTW ultrasonic cleaning
Spectral measurement of nitrate and suspended solids content without chemicals for all applications needing an accurate nitrate measurement.
The integrated WTW ultrasonic cleaning prevents the attachment of deposits from the very beginning. This ensures comparable and reliable measured values in continuous operation.
| Model | NitraVis® 701 IQ | NitraVis® 705 IQ | NitraVis® 701 IQ TS | NitraVis® 705 IQ TS | |
| Order No. | 481044 | 481046 | 481045 | 481047 | |
| Measuring method | Spectral Measurement in the UV-VIS Range (200 – 720 nm) | ||||
| Measuring gap (optical layer thickness) |
1 mm | 5 mm | 1 mm | 5 mm | |
| Application (optimized for) | Municipal wastewater: | Municipal wastewater: | Municipal wastewater: | Municipal wastewater: | |
| Measuring range and Resolution | Inlet: | Inlet: | |||
| NO3 | 0.0 … 300.0 mg/l 0.1 mg/l | 0.0 … 300.0 mg/l 0.1 mg/l | |||
| NO3-N | 0.00 … 60.00 mg/l 0.01 mg/l | 0.00 … 60.00 mg/l 0.01 mg/l | |||
| TSS | 0.00 … 15.00 g/l 0.01 g/l | ||||
| Aeration: | Aeration: | ||||
| NO3 | 0.0 … 300.0 mg/l 0.1 mg/l | 0.0 … 300.0 mg/l 0.1 mg/l | |||
| NO3-N | 0.00 … 60.00 mg/l 0.01 mg/l | 0.00 … 60.00 mg/l 0.01 mg/l | |||
| TSS | 0.00 … 20.00 g/l 0.01 g/l | ||||
| Effluent: | Effluent: | Effluent: | Effluent: | ||
| NO3 | 0.0 … 750.0 mg/l 0.1 mg/l | 0.0 … 250.0 mg/l 0.1 mg/l | 0.0 … 750.0 mg/l 0.1 mg/l | 0.0 … 250.0 mg/l 0.1 mg/l | |
| NO3-N | 0.0 … 150.0 mg/l 0.1 mg/l | 0.00 … 50.00 mg/l 0.01 mg/l | 0.0 … 150.0 mg/l 0.1 mg/l | 0.00 … 50.00 mg/l 0.01 mg/l | |
| TSS | 0 … 4,500 mg/l 1 mg/l | 0.0 … 900.0 mg/l 0.1 mg/l | |||
| Flow rate | ≤ 3 m/s | ||||
| Pressure Resistance | Maximum 1 bar (incl. sensor connection cable) | ||||
| Electrical connections | 2-wire shield cable with quick fastener to sensor | ||||
| Electromagnetic Compatibility |
EN 61326, Class B, FCC Class A Intended for indispensable operation |
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| Certifications | CE | ||||
| Mechanical | Housing: Titan Grade 2, PEEK Window: Sapphire glass Protection class: IP 68 |
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| Weight (without cable) | Approx. 8.82 lb (4 kg) | ||||

Universal monitor DIQ/S 281-CR2. The new system 281 – the digital and cost-efficient single parameter measuring point with proven IQ Sensor Net technology and IQ sensors for the standard parameters.

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