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M9 On-Line

M Series

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M9 On-Line

Superior productivty

Designed for continuous monitoring of waters from ultrapure to potable, the M9 On-Line combines UV/persulfate oxidation with the proven Sievers Membrane Conductometric Detection Technology for unparallelled accuracy and precision across a dynamic operating range of 0.03 parts per billion (ppb) to 50 parts per million (ppm). Providing readings in only two minutes, the M9 series analyzers are 50% faster than the legacy 900 series. And for reclaim applications, the Sievers M9 On-Line is available in a Turbo mode, providing readings every four seconds.

In addition to the continuous TOC analysis mode, discrete grab samples, as well as standards, can be introduced using the unique Sievers Integrated On-Line Sampling System (IOS System™).

Special features

The M9 On-Line Analyzer utilizes a modular design and advanced materials for maximum reliability and uptime. Engineered for ease of use and cost-effective operation, the M9 On-Line Analyzer needs no external reagents or gas supplies and requires only a few hours of preventive maintenance per year. Calibration is typically stable for twelve months. A color, touch-screen display provides intuitive menus to quickly establish operating parameters and view historical or real-time data.

Advanced productivity and efficiency

  • Two-minute analysis time
  • Automated operations, such as calibration and data analysis
  • Autoreagent feature automatically establishes optimal flow rates for each sample

Low maintenance and operating costs

  • No external reagent or gas supplies are required, saving valuable lab space, time, and money.
  • Internal reagent packs that can be installed in minutes to achieve three to six months of uninterrupted service, depending on the application.
  • The M9 Series Analyzers typically require just a few hours per year of preventive maintenance.
  • It’s modular design facilitates quick consumables replacement and preventive maintenance

12-month calibration stability

The M9 On-Line Analyzer offers 12-month calibration stability, unlike competing analyzers that require weekly or even daily calibration. Users can select a single or multi-point calibration. To further simplify operation, calibration calculations are performed and constants updated automatically.

Simple and intuitive

  • Large, color, touch-screen display
  • Saved methods available at the instrument
  • At-a-glance consumables status
  • Trend data displays in tabular or graphical form

Applications versatility

The M9 On-Line Analyzer has a detection limit of 0.03 ppb, allowing it to perform even in the most demanding ultrapure water applications. For higher TOC concentrations up to 50 ppm, precision and accuracy are unequalled.

Online and Grab sampling

The Sievers Integrated On-Line Sampling System (IOS System™) allows the easy introduction of external standards and samples. This unique feature allows users to introduce calibration, validation, and system suitability standards directly without removing the instrument from the continuous sample source or changing the sample inlet configuration. It even accommodates grab samples for spot checks of TOC samples from other points in the water system.

Data Communications

The M9 Online TOC Analyzer includes industry standard 4-20mA analog (3), binary alarms (4), and Modbus TCP/IP communications.  A USB port is also available to allow easy download of data using a USB memory stick.


Self-contained in ruggesd dust- and spray-resistant IP-45 rated enclosure, the M9 combines innovative design improvements with carefully selected materials and components to ensure maximum uptime.

Inorganic Carbon Remover (ICR) – Integrated inside the M9 instrument, the optional ICR reduces inorganic carbon levels in sample streams with high IC/TOC ratios to produce more accurate TOC results.
Turbo Mode – Available for the M9 On-Line Analyzer, the Turbo mode is well suited to a wide range of reclaim water applications where quick process control feedback is required. With an expanded range of 0.20–10,000 ppb, TOC, IC, and TC measurements are updated every four seconds, assuring that even short-lived excursions are captured.

Search in the Library for these and other resources for the Sievers M9 On-Line Total Organic Carbon (TOC) Analyzer:

  • Application Notes and Papers
  • Brochures
  • Certificates of Analysis
  • Declarations of Conformity
  • Engineering company specs
  • Field Service Bulletins
  • Manuals
  • MSDS
  • Technology Animations
  • TOC Analyzer Search and Buyer’s Guide

Operating Specifications*
Range 0.03 ppb to 50 ppm
Precision < 1% RSD
Accuracy ± 2% or ± 0.5 ppb, whichever is greater
Display Readout 3 significant digits
Sample Type On-line continuous or discrete grab sample
Calibration Typically stable for 12 months
Analysis Time 2 minutes (4 seconds with the optional Turbo mode)
Sample Temperature** 5–95 °C (41–203 °F)
Ambient Temperature 5–40 °C (41–104 °F)
Sample Pressure 100 psig
On-Line Flow Rate >50 mL/min (for on-line mode)
Instrument Sample
Flow Rate
0.5 mL/min
Analyzer Specifications
Outputs 4-20 mA outputs (3); alarm outputs (4); binary input (1); USB device port (1); USB host ports (2); Ethernet
Display 7″ WVGA 800X480 pixel, Color LCD with touch-screen
Power 100 – 240 V~, 50 -60 Hz, 100 VA
Fuses Replace with same type and size fuse: T 1.6 A 350 VAC Fuse (Slow Blow), size 5 X 20 mm appliance inlet
Dimensions H: 54.9 cm (21.6 in); W: 45.0 cm (17.7 in); D: 26.5 cm (10.4 in)
Weight 15.8 kg (34.9 lb)
Enclosure Rating IP-45
Safety Certifications ETL, CE (see Declaration of Conformity)
Maximum Relative Humidity 0 – 95%, non-condensing
Maximum Altitude 3,000 m (9.800 ft)
Pollution Degree 2

* Stated analytical performance is achievable under controlled laboratory conditions that minimize operator and standards errors.
**Sample temperature above 60 °C requires optional PVDF iOS

Specifications - Turbo Model

The Sievers M9 On-line Turbo provides the fastest, most accurate total organic carbon (TOC) data across the widest range of any analyzer. Specifications include an analysis time of 4 seconds, a response time of 3.25 minutes, and a wide analytical range of 0.20 parts per billion (ppb) to 10 parts per million (ppm) of TOC. The Sievers M9 Portable Turbo is:

  • Sensitive enough to detect the smallest changes in reclaim TOC
  • Robust enought to maintain accuracy even at 10 ppm
  • Fast enough to outperform all other reclaim TOC analyzers and provide up-to-the-second results
  • Immune to false positives and false negatives that trouble non-membrane-based TOC analyzers
Operating Specifications*
Range 0.20 ppb to 10 ppm
Precision 2% RSD
Accuracy ± 10% or ±10 ppb whichever is greater
Display Readout 3 significant digits
Sample Type On-line, Grab
Calibration Typically stable for 12 months
Analysis Time 4 seconds
Response Time 3.25 minutes
Sample Temperature 5–95 °C (41–203 °F)
Ambient Temperature 10–40 °C (50–104 °F)
Sample Pressure 100 psi
Sample Flow Rate 30–300 mL/min (for on-line mode)
Instrument Sample
Flow Rate
1.1 mL/min
Analyzer Specifications
Outputs 4-20 mA outputs (3); alarm outputs (4); binary input (1); USB device port (1), USB host ports (2); Ethernet (1)
Display 7” WVGA 800×480 pixel, Color LCD w/touch-screen
Power Universal Power Supply: 100–240 ± 10% VAC, 50 W, 50/60 Hz
Dimensions H: 54.9 cm (21.6 in); W: 45.0 cm (17.7 in); D: 26.5 cm (10.4 in)
Weight 15.8 kg (34.9 lb)
Safety Certifications ETL, CE
Enclosure Rating IP-45
UV Lamp 6 months
Acid Reagent As needed, typically 6 months
Oxidizer Reagent As needed, typically 3-month stability

*Stated analytical performance is achievable under controlled laboratory conditions that minimize operator and standards errors.

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