Online Nitrate Analyser
Use programmed wet chemistry to provide regular nitrate results at the point of treatment.
Online Nitrate Analyser with 3S
Nitrate measurement can support drinking-water, source-water and wastewater treatment decisions. A configured 3S-CL runs the selected wet-chemistry sequence automatically, giving operators regular results for trend review between manual or laboratory checks.
For focused application planning, explore Drinking-Water Nitrate Monitoring and Wastewater Nitrate & Nitrite Monitoring.
Nitrate and nitrite are distinct measurands, so the method and reporting basis must match the monitoring objective. Expected concentration, sample colour, solids and other matrix components should be reviewed before final specification. Compare wastewater nutrient applications, drinking-water applications and the 3S-CL platform.
Repeatable online nitrate measurement in a compact analyser
The programmed sequence handles the sample and reagents automatically, allowing operators to review nitrate results and analyser status through the integrated touchscreen.
01 / NITRATE METHOD
Parameter-specific nitrate measurement
The 3S-CL is configured with a nitrate-specific wet-chemistry method. The approved chemistry and measuring range are selected around the sample matrix and the result the site needs to report.
- Parameter-specific wet-chemistry sequence
- Freely programmable analysis frequency
- Automatic result calculation
02 / AUTOMATIC ROUTINES
Calibration, validation and cleaning
Automatic routines can be scheduled at selectable intervals to support repeatable nitrate monitoring between planned maintenance visits.
- Automatic calibration
- Automatic validation
- Automatic cleaning
Nitrate analyser information
Core 3S-CL information for nitrate method and installation review. The final chemistry, range and sample arrangement should be confirmed for the application.
Flexible installation
Wall or rack mounting is supported in the standard vertical arrangement.
Defined sample handling
A pressure-free sample reservoir presents flow to the analyser.
Process integration
Analog outputs and Modbus RTU RS485 support plant integration.
Operator records
The integrated datalogger supports USB result export.
Designed for nitrate trend monitoring
Regular online nitrate results can help treatment teams identify changing source-water or process conditions. The separate wet and electronic compartments keep the chemistry contained while results and analyser status remain available through the touchscreen.
Touchscreen
Review nitrate results, status information and analyser functions.
Automatic routines
Calibration, validation and cleaning run at selectable intervals.
Separate compartments
Electronic and wet-chemistry sections are physically separated.
Low reagent use
Reagent consumption is confirmed for the selected chemistry and programmed analysis frequency.
Nitrate analyser technical specifications
Core 3S-CL information for specification and application review.
| Measured parameter | Nitrate |
| Measurement principle | Parameter-specific colorimetric method using spectroscopic colour-development measurement |
| Measuring variables | Chemistry and range selected for the approved application |
| Analysis frequency | Approximately 6–20 minutes, depending on the selected parameter and chemistry |
| Power supply | 110–230 VAC, 50/60 Hz, 80 VA; optional 24 VDC |
| Operating conditions | 5–45°C; maximum 85% RH |
| Cabinet and protection | Epoxy-coated stainless steel; IP54 |
| Sample streams | One or two, with further expansion available through an optional sequencer |
| Outputs | 2 × 4–20 mA; Modbus RTU RS485 |
| Automatic functions | Calibration, validation and cleaning |
Parameter-specific chemistry, range and performance should be confirmed against the latest approved 3S documentation before procurement.
Discuss Your Nitrate Measurement
Tell PMA whether nitrate alone is required, the expected range, sample matrix, sampling point and monitoring frequency. For selection guidance, read online versus portable colorimetry or request an application review.
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