Scrubbing & Emissions Monitoring

With Port Authorities around the world increasingly taking measures against polluting from ships, one available method for shipping companies to reduce the amount of SOx emissions being produced is by installing an approved Exhaust Gas Cleaning System alternatively known as a scrubber. Wet scrubber systems are highly effective in reducing SOx emissions as they scrub the exhaust gas from the engines with sea water which washes the sulphur out of the exhaust gas. The water is then collected, purified and discharged into the sea according to the IMO’s regulations.

Monitoring a SOx scrubber on a ship is a challenge due to wet and corrosive gases. Furthermore, in such environment, gas sampling systems will requiring high levels of maintenance in order to operate correctly. Sigma Hellas solves this problem with portable cost effective and user friendly emission analyzers that can be used to check the SOx emissions for stack scrubber efficiency.

The first option for Efficiency Measurements is Model 340.

The measuring instrument is fitted with an O2 measuring cell as standard. Three further toxic sensors (e. g. CO, COlow, NO, NOlow, NO2 or SO2) can be individually configured at any time, in order to adapt the 340 optimally to the respective measurement task. The sensor can be exchanged directly by the user, minimizing service times.
The integrated rubber skin of the instrument housing protects the instrument from impact in rough day-to-day use.

You have flexibility and can decide which parameters to measure depending on the measurement requirements of the system.
The 340 is equipped with an O2-Sensor as standard.
Three slots are available to you for different gas measurement parameters. This means you can select freely from CO, COlow, NOlow, NO2 or SO2. You need no additional sensors for different - measuring ranges – that lowers costs!

Therefore with the basic version of the analyzer (that includes an O2 sensor) and the SO2 sensor, a probe, battery charger and a transport case you have a completely portable, easy to use within minutes, system to check your scrubbing efficiency.

Of course the standard 340 analyzer also measures, gas temperature, draught, pressure, efficiency, CO2 (calculated from O2), and can be upgraded to measure two additional toxic gases (from CO, NO, & MO2).

Additional applications to checking scrubber performance are Turbocharger oxygen sufficiency monitoring and Verification of CO2 reduction & trend monitoring, as well as boiler adjustment.

The second option for Official Emissions Compliance Measurements is the top of the range MARPOL Annex VI certified 350-MARITIME model, fitted with: O2, CO, CO2-(IR), NO, NO2 and SO2, incl.gas preparation, differential pressure sensor, 2 temperature probe inputs,connection data-bus, fresh air valve for long-term measurement, integrated battery, integrated combustion air probe (NTC), trigger input, measurement datastore, USB interface-Control-Unit 350-MARITIME V2-Robust protection case with trolley function. 350-MARITIME is the only portable emissions analyzer with a type approval (GL) for NOx & SOx measurements in compliance with MARPOL Annex VI and NOx Technical Code (direct measurement).