The 9220 Total Organic Carbon Analyzer was developed from over 50 years of experience in measuring TOC for water quality monitoring, water treatment, and process water monitoring applications. With YSI’s heated persulfate and NDIR detection technology, the 9220 provides unmatched performance, reliability, versatility, and ease of use.
- Brand
- FEATURES & BENEFITS
- Brochures and Catalogs
- TECHNICAL SPECIFICATIONS
- Guides
- Manuals
- Specification Sheets
FEATURES & BENEFITS
The 9220 is an online TOC analyzer that employs Heated Persulfate Oxidation with NDIR detection methodology. Standard features include four-stream analysis capability, onboard carrier gas generation, autocalibration, auto validation, and intuitive software with touchscreen operation. The 9220 is self-contained in a mounting panel with a reagent tray for quick and easy installation and commissioning. Connectivity is provided through four 4-20mA outputs (one for each sample stream), Modbus, and discrete alarm outputs. The 9220’s reliability and low-maintenance design ensure reliable data collection with minimal effort.
- Improved process control – Optimize coagulation and flocculation of raw water to maintain total organic carbon removal targets.
- Multi-stream capability – Monitor up to four process streams on a single analyzer at no additional cost.
- Robust Design – Housed in an IP66 waterproof enclosure to operate in the harshest conditions.
- EPA compliant – Compliant with US EPA regulations 415.3 (source and drinking water) and Standard Method 5310C (wastewater).
- Autocalibration & Auto Validation – Ensures accurate measurements without regular user calibrations.
- Readily available reagents – No need for expensive, proprietary chemicals.
Primary applications include:
- Minimize disinfection by-product formation to ensure regulatory compliance.
- Improve coagulant and flocculant dosing.
- Optimize chlorine disinfection processes.
- Monitor and control potable reuse treatment processes.
Secondary applications include:
- Distribution system monitoring.
- Source water monitoring.
- Process water monitoring.
Brochures and Catalogs
TECHNICAL SPECIFICATIONS
| Performance | |
|---|---|
| Operating Principle | Heated sodium persulfate oxidation |
| Measurement Technique | Non-dispersive infrared (NDIR) detection |
| Regulatory Method Compliance | USEPA 415.3 (source water & drinking water) SM 5310C (water & wastewater) |
| Measurement Range | 0 to 25 ppm (standard); adjustable up to 100 ppm |
| Measurement Accuracy | ±5% |
| Measurement Precision | 2% RSD |
| Limit of Detection | 0.015 ppm |
| Sample Processing/Analysis Time | 5 to 9-minute intervals |
| Sample Processing Ports | 6 (included) |
| Sample Processing Valve Controls | 4 (included) |
| Sample Processing Valves | Up to 4 (optional) |
| General | |
| Operator Interface | 7” WSVGA display with a capacitive touchscreen (Windows® CE-based) |
| External Dimensions (Enclosure) | 58.5cm H x 55.9cm W x 25.4cm D (23in H x 22in W x 10in D) |
| Mounting Dimensions (Panel w/ reagent tray) | 113.7cm H x 55.9cm W x 28cm D (44.75in H x 22in x 11in D) |
| Certifications | IEC 61326-1, IEC 61010-1, cETLus (ETL and CSA Standards) |
| Instrument Enclosure Certifications | IP66; NEMA 4 |
| Weight | Analyzer: 16.6 kg (36.5 lbs) Analyzer, panel w/ reagent tray, PGM, and full reagent containers: 44.4 kg (98 lbs) |
| Instrument Warranty | 2 years |
| Reagents and Requirements | |
| Reagents Required | 10% sodium persulfate, 5% phosphoric acid, DI water |
| Reagent Containers | 5L high-density polyurethane |
| Reagent Lifetime (Liquid) | Nominally 30 days at 77 °F (25 °C); 90 days at temperatures less than 39 °F (4 °C) |
| Power and Communication | |
| Power Requirements | 100 to 240 VAC, 70VA, 50/60 Hz |
| Input Relays | 2 (remote start, remote stop); 5A/30 VDC Max – potential free contact closure |
| Output Relays | 2 (system alarm, sample alarm); 5A/30 VDC Max – potential free contact closure |
| Analog Outputs | 4 (4 to 20 mA; user-configurable concentrations) |
| Digital Outputs | RS-485/422 Modbus RTU protocol or ASCII standard |
| Data Export | To PC via USB memory stick (Microsoft® Excel®-ready .csv file format) |
| Environmental | |
| Operating Temperature Range | 41 to 113 °F (5 to 45 °C) |
| Humidity | Up to 90% humidity (non-condensing) |
| Storage Temperature Range | 41 to 113 °F (5 to 45 °C) |











