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 Xylem Analytics' heated persulfate and NDIR detection technology, the 9220 provides unmatched performance, reliability, versatility, and ease of use.
WTW 9220 TOC Analyzer
Reliable data for regulatory compliance and process control
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.
Applications
- Drinking water:
Monitor source and finished water to meet TOC removal targets and optimize the process.
- Wastewater:
Monitor effluent for process optimization and regulatory requirements.
- Environmental monitoring:
Monitor water quality of rivers, lakes and streams around discharge and intake points.
- Power generation:
Monitor source and process water in critical boiler feed and condensate return applications.
IQ Sensor Net compatibility
The 9220 integrates with WTW’s IQ Sensor Net system via the MIQ/IC2 module and the analyzer’s 4-20mA output. It supports RS 485/422 Modbus or ASCII standard communication for seamless integration.