Sulfide analyzer SU200

Direct sulfide measurement based on UV spectroscopy.
Measurement of slfide in water and waste water in 3 minutes without filtration.

Sulfide analyzer SU200

Online sulfide monitoring

Measurement range :

  • 0,5 – 200 mg/L S2−
  • other ranges on request

Quick results : measurement in less thant 3 minutes

Insensitive to turbidity and water coloration

Exclusive measurement method on gas phase :
– Reaction of Sulfide ions to an injection of acid (H2SO4 or HCl)
– Extraction by Fourier transform of absorption spectrum of sulfur dioxyde SO2 released.

Reliable measurement in the long run

Automatic cleaning system and zero adjustment system ensure long term measurement reliability.

Compact size

A sulfide analyzer designed to be convenient in a day to day work environment

Rugged equipment

A robust conception suited for use in professionnal environment:

  • Solid cases
  • Resistant opening system
  • Display screen and mechanical keyboard can be used with gloves or with wet hands and are resistant to water splashes

Graphical display

  • Access of the measurement history as digital or graphical display.
  • Choose the display time range (hour / day / week / month / year)
  • Follow on-going measurement cycle.

Simple and convenient

Quick acces to main features:
  • Start a measurement
  • Stop on-going measurement cycle
  • Start / stop a cleaning cycle
  • Measurement history.
Easily measure any sample using a manual measurement through the sampling pump.

Adapted sampling system

Depending on the site configuration, choose a suitable sampling mode:

  • Solenoid valve (pressurized water inlet)
  • Peristaltic pump

Mains power supply / 12V battery

  • Mains connection for a fixed installation
    The internal battery makes the system resilient to power outages.
  • Operation on 12V battery for use on an isolated site (autonomy: approximately 100 measurements).


  • Recording of measurements with date and time on a static memory.
  • Capacity of 10,000 measurements.
  • RS232 port for serial communication
  • Data transfer to PC via an RS232-USB converter, in a format compatible with spreadsheet software (Excel, LibreCalc, etc.)

A cost-efficient sulfide monitoring system


Very low operating cost and reduced need for maintenance


  • Cheap and accessible reagent : H2SO4 or HCl acid, used in low amounts (4-5 mL per measurement)
  • Automated cleaning system and zero adjustment.
  • Automatic calibration from a standard.

Equip your facility for a long time with analyzers built to last

In contrast with planned obsolescence, our devices are built to last, to be easily maintained and repaired when needed.
Make significant savings in money and time over the long term :

  • Product design and component sourcing driven by sustainability
  • Helpful and responsive support and maintenance service
  • 2 year manufacturer’s warranty

Contact our local partners

We work with partners worldwide to offer you a reliable service no matter where you are.
Let us know what you need and we will follow up with a custom quote from our local partner.

An online sulfide analyzer designed for water treatment control through real-time monitoring.

Drinking water

  • Upstream alert stations to avoid chlorine consumption due to ammonium excess

Urban waste water

  • Ammonium monitoring to control O2 injection in aeration basins of WWTP
  • WWTP outlet monitoring before discharge into the natural environment

Industrial effluents

  • Food industry
  • Chemical industry

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