6000TOCi On-line TOC Analyzer

TOC Sensor 6000i

Real-time Total Organic Carbon Control.The 6000TOCi online sensor delivers true continuous measurement for the detection of organic contamination. With an extremely rapid response to TOC changes, the 6000TOCi is ideal for all pure water applications where rapid detection of TOC changes is critical.

Real-Time Transparency of TOC Levels

Achieve clear control of your water system with the fastest response time available and measurement updates every second for continuous TOC analysis.

Conclusive Data to Support Compliance

The 6000TOCi uses proven UV oxidation technology and highly accurate conductivity sensors to deliver consistent and accurate determination of organic material.

Verifiable System Performance

Using advanced sensor diagnostics, the 6000TOCi gives you the insight needed to ensure your TOC system is always measuring effectively.

Material No.: 30472150

6000TOCi On-line TOC Analyzer
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Specifications - TOC Sensor 6000i
Measurement Range (Concentration)
0.05 ppb
2,000 ppb
Response Time
60 s
Detection limit
0.025 ppb
Pressure Range
4 psi
200 psi
Analysis Time
Limit of Detection
0.025 ppbC
Flow rate
> 8.5 mL/min
0.001 ppbC (µgC/L)
Temperature accuracy (±)
± 0.25°C
Measuring Range
0.05 - 2000 ppbC (µgC/L)
6 mo UV replacement
Weight (2)
6 kg (11.0 lb)
± 0.05 ppbC < 5 ppbC, ±1.0% > 5 ppbC
Temperature Sensor
Pt1000 RTD, Class A
Operating Range (Temp.)
0 °C
100 °C
Dimensions HWD
11.9” [302.75 mm] W x 9” [229.8 mm] H x 5.7” [144.7 mm] D
Online or Portable
Enclosure Material
Powder-coated aluminum back enclosure and polystyrene resin front enclosure.
Initial Response Time
< 60 seconds
Conductivity Accuracy
± 2%, 0.02 – 20 μS/cm ± 3%, 20 –100 μS/cm
Cell Constant (accuracy)
± 2%
Material Number(s)

Real-time Compliance

The 6000TOCi analyzer provides rapid, continuous measurement of TOC levels in water systems. In comparison to batch systems that measure at intervals, 6000TOCi users benefit from real-time data, thus ensuring that TOC excursions are never missed – even for a minute.

Stable and Reliable Analysis

The 6000TOCi uses proven UV oxidation technology and extremely accurate conductivity sensors to provide repeatable and precise measurements. This provides you with conclusive data to support regulatory requirements.

Clear TOC History to Support Audits

The 6000TOCi with real-time measurement function allows for comprehensive record keeping of trending, history and key statistics to support your compliance documentation. USB ports for printer and data logging allows you to maintain a complete sensor history record.

Supports Regulatory Compliance

The 6000TOCi satisfies the requirements of all major global pharmacopeias for TOC instrumentation, including USP, EP, JP, ChP and IP. With real-time TOC analysis for clear control, meeting global and internal water quality requirements has never been easier.



Product Brochure: 6000TOCi with ISM
Continuous monitoring provides a real-time data advantage over batch or non-continuous methods of total organic carbon (TOC) measurement. Unlike at-li...

Technical Specifications

Technical Data: 6000TOCi with ISM
The 6000TOCi is the latest edition to the METTLER TOLEDO Thornton On-line TOC Sensors. It’s dependable and reliable design uses proven UV oxidation te...


Data Sheet: 6000TOCi with ISM
The 6000TOCi analyzer provides rapid, continuous measurement of TOC levels in your water system. Versus batch systems that measure at intervals, 6000T...
Data Sheet: 6000TOCi Services
Expert system services and periodic replacement of critical system components, such as the UV lamp, ensures your TOC system is always operating effici...


Operation Manual: 6000TOCi Sensor
The 6000TOCi sensor is a Total Organic Carbon sensor with ISM capabilities, designed to measure the concentration of organic substances in pure and ul...
Quick Setup Guide: 6000TOCi & M800 Transmitter
Mount the 6000TOCi in an appropriate location. A minimum clearance dimension of 18"(45.7 cm) is required on the left side of the sensor for UV lamp ch...
6000TOCiPump Module Instruction Manual
The Pump Module uses a precision, positive displacement pump to provide a highly stable, metered flow of process water to the 6000TOCi sensor to ensur...

White Paper

White paper on simplifying regulations
A white paper on the regulations for total organic carbon (TOC) in pharmaceutical waters.


TOC Pump Module

The 8.5 ml/min pump module uses a precision-based positive displacement pump to deliver a highly stable, metered flow of process water to the TOC sensor in order to ensure reliable, consistent TOC measurement performance. This pump is intended for use with the 6000TOCi.

Material No.: 30472152


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TOC Sensor 6000i
Fieldbus Foundation