9220 Total Organic Carbon Analyzer

YSI 9220 TOC Analzyer | Overview

Introducing the 9220 Total Organic Carbon (TOC) analyzer, developed from over 50 years of experience in measuring TOC for water quality monitoring. Leveraging YSI’s heated persulfate and NDIR technology, the 9220 provides unmatched performance, reliability, versatility, and ease of use.

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SKU333205


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.

  • Overview

    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.

  • 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)
    Input Relays 2 (remote start, remote stop)
    Output Relays 2 (system alarm, sample alarm)
    Analog Outputs 2 4-20mA (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)

  • Accessories

    Sample Inlet Device

    Sample Inlet Device for 3017M and 9220

  • Video

    YSI 9220 TOC Analzyer | Overview

    Introducing the 9220 Total Organic Carbon (TOC) analyzer, developed from over 50 years of experience in measuring TOC for water quality monitoring. Leveraging YSI’s heated persulfate and NDIR technology, the 9220 provides unmatched performance, reliability, versatility, and ease of use.

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