Description
The ORCA-204 Monochloramine Analysis Fluidic Unit is an automated sample conditioning and fluidic presentation module engineered to operate with the ORCA-101 Electronic Control Unit. Designed for continuous, on-line water quality monitoring, the ORCA-204 automatically draws slipstream samples from municipal drinking water headers, cooling loops, and industrial effluent channels, performs precision chemical conditioning, and introduces the sample into the Quantitative Raman Spectroscopy (QRS) flow cell—delivering true molecular speciation of monochloramine (NH2Cl) without the interferences and subjectivity of manual DPD colorimetry.
- Drinking Water Chloramination: Precision automated tracking of monochloramine residual to maintain disinfection efficacy while minimizing disinfection byproduct (DBP) formation.
- Distribution Nitrification Control: Early-warning detection of monochloramine decay and free ammonia release across water distribution networks.
- Cooling Tower Biocide Monitoring: Verifies active monochloramine biocide dosage in recirculating industrial cooling systems.
- RO Membrane Protection: Continuously monitors feedwater to prevent oxidative chlorine/chloramine degradation of sensitive polyamide reverse osmosis membranes.
- True Molecular Speciation: Distinctly separates monochloramine from dichloramine, free chlorine, and ammonia without indirect subtractive math.
- Automated Slipstream Purge: Continuous or periodic line flushing ensures freshly extracted sample reaches the optical measurement cell.
- Reagent Mixing Chamber: Microfluidic reaction stage provides stoichiometric consistency across varying water temperatures and matrix chemistries.
- Optical Flow Cell Integration: Low-dispersion quartz flow interface engineered for rapid filling and zero sample carryover.
- Reagent Pack Longevity: Standard plug-and-play reagent packs are rated for 168 automated tests (1 test/hour for 7 days walkaway operation).
- Host Controller Interface: Managed entirely by the ORCA-101 ECU; pushes calibrated monochloramine values directly to plant SCADA via Modbus and 4–20 mA.
| Primary Function | Automated slipstream sample extraction and preparation for monochloramine analysis |
|---|---|
| Target Analyte | Monochloramine (NH2Cl as Cl2) |
| Host Controller Required | ORCA-101 Electronic Control Unit |
| Analysis Frequency | Software configurable (typically 1 to 4 runs/hr; up to 12 runs/hr available) |
| Slipstream Connections | 1/4″ Swagelok compression fittings (sample inlet, drain, and rinse ports) |
| Operating Sample Pressure | Atmospheric to 30 psig (sample conditioning skid available for pressurized headers) |
| Temperature Range | Sample fluid: 4°C to 45°C (40°F to 113°F) |
| Reagent Pack Capacity | 7 days unattended at 1 test/hr (standard pack); bulk container options available |
| Wetted Materials | PTFE, PEEK, 316 Stainless Steel, and optical grade quartz/borosilicate |
| Enclosure Rating | NEMA 4X / IP66 rated weatherproof industrial enclosure |
Availability & Reagents: Requires OndaVia Monochloramine Reagent Packs. Standard manufacturing lead time is 4 weeks from order confirmation.
Water Header Feasibility & Matrix Screening
Have high-iron, manganese, or variable organic load in your water treatment plant? Submit a grab sample for free Raman spectral validation and interferences screening within 48 hours.
