SevenExcellence DO meter S900 meter only

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Catalog number: 30092984

S900 SevenExcellence™ Dissolved Oxygen/BOD Basic

The S900 SevenExcellence DO meter allows users to determine dissolved oxygen content in samples using METTLER TOLEDO's new InLab® OptiOx digital dissolved oxygen sensors. Combined with the InLab® OptiOx, the S900 instrument is also able to allow the determination of biochemcial oxygen demand.

This single channel instrument is modularly expandable with additional measurement parameters at any time|

  • Professional calibration support, incl. automatic calibration with Rondolino sample changer
  • Large 7 inch color display and intuitive menu guidance in 10 languages
  • Flexible method concept for high reproducibility and security
  • Extra security thanks to sophisticated user management and Intelligent Sensor Management (ISM®)
  • Integrated interfaces (USB, RS232 and Ethernet) for data exchange
  • Comprehensive service package including IQ/OQ/PQ

Professional, yet intuitive instrument with touchscreen operation, which can easily handle the most complex applications and meets stringent requirements in regulated markets.

Order information:
  • S900-Basic SevenExcellence DO (Instrument with a DO expansion unit and 2 blank expansion units); can support both digital (RDO) and polarographic DO sensors from METTLER TOLEDO
  • S900-Kit Kit version (as S900-Basic, including InLab® OptiOx-ISM digital RDO sensor, dissolved oxygen guide and zero-oxygen tablets for calibration)
  • S900-BOD Kit version (as S900-Basic, including InLab® OptiOx-ISM digital RDO sensor, OptiOx BOD adapter, dissolved oxygen guide and zero-oxygen tablets for calibration)
Included in every SevenExcellence:
  • uPlace™ electrode holder with a perfect vertical motion. It can be operated with one hand and used either freestanding or attached to the left or right side of the instrument.
  • LabX direct pH PC software for transferring real-time measurement data and archiving your results
S900 SevenExcellence digital RDO
Parameter Descriptor Value (RDO – digital)
Dissolved oxygen Measuring range 0.000…50 mg/L (ppm)
  Display Resolution 0.001/0.01/0.1/1
  Accuracy ± 0.1 mg/L from 0…8
    ± 0.2 mg/L from 8…20
    ± 10% from 20…50
  Unitsmg/L, ppm, %  
DO Saturation Measuring range 0.0…500%
  Resolution 0.1
Pressure Measuring range 500 to 1100 mbar
  Resolution 1
  Accuracy ± 0.2%
General Calibration points 2
  Sensor input MiniLTW (IP67)
  Pressure compensation automatic / manual
  Pressure units mbar, hPa, mmHg, Atm


  • DOPhys. property
  • StolníInstrument type

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