Systea S.p.A.

Analytical Technologies

Easychem COLI on-line

EASYCHEM COLI on-line is a microprocessor controlled on-line analyzer automating COLILERT®-18 test to detect coliforms in drinking, surface, waste and bathing water.

EASYCHEM COLI on-line simultaneously detects both total coliforms and Escherichia coli in water, or faecal coliforms in wastewater, automating the IDEXX Colilert®-18 assay that has become the new International Organization for Standardization (ISO) standard 9308-2:2012 and it is also U.S. EPA- approved and included in Standard Methods for Examination of Water and Wastewater. Full results are provided in 18 hours.


  • TOTAL coliforms, colorimetric
  • E.coli, fuorimetric
  • FAECAL coliforms, colorimetric.

Total+E.coli incubated at 35.0±0.5 °C

Faecal coli incubated at 44.5±0.5 °C


Designed for industrial and environmental on-line applications, ensures the highest level of robustness in the electronics, mechanics and hydraulics components.


The analyzer is delivered only after a successful final test. It is provided ready for installation, with a spare set for start-up operations.

Features and benefits

  • Fully automatic operation
  • 28 days autonomy, one sample per day, with automatic detection of Total +  E.coli and Faecal coliforms or 56 samples autonomy with automatic detection of Total + E.coli or, alternatively, Faecal coliforms
  • Use of disposable 100 ml bottles ensures water sample representativeness and avoids any cross contamination
  • No need of long hydraulics washing using special cleaning solutions 
  • Automatic generation of local and remote alarms through Ethernet or optional GSM/GPRS/3G remote connection
  • Yearly maintenance.