Systea S.p.A.

Analytical Technologies

Displaying items by tag: water
Tuesday, 11 February 2020 10:45

Easychem COLI online

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

EASYCHEM COLI online simultaneously detects both Total Coliforms (TC) and Escherichia coli (EC) or Faecal Coliforms (FC) in water and wastewater. Multiple Tube Fermentation MTF quantitative results are provided within 18 hours, according to the measurement range.

Colilert®-18 culture medium is the ISO standard 9308-2:2012 and it is also U.S. EPA-approved and included in Standard Methods for Examination of Water and Wastewater.


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

Total+E.coli incubated at 35 - 37 ±0.5 °C

Faecal coli incubated at 44.5 ± 0.5 °C

Other bacteria strains (Enterococci, HPC) available on request.


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


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


The online analyzer allows to recognize coliform contamination by performing Presence/Absence (P/A) tests (TC and EC or FC) that can be combined with automated Multiple Tube Fermentation (MTF) quantification at 35-37 °C (TC and EC) or 44.5 °C (FC), with an analytical frequency adjustable to customer’s needs.

At the same time, the Time To Detect (TTD) technique allows early warning estimation of TC and / or FC concentration.

Features and benefits

  • Up to 60 days unattended autonomy for MTF detection
  • Up to 56 samples autonomy with automated P/A detection of TC + EC or, alternatively FC
  • TTD event detection for TC and/or FC
  • MTF detection by selectable measurement ranges (in MPN / 100 mL)
  • Automated cuvette sterilisation ensures long term autonomy 
  • Automated generation of local and remote alarms through Ethernet or optional GPRS/3G remote connection
  • Long term unattended operation.
Published in On-line analyzers
Sunday, 01 May 2016 06:59

Easychem TOX Early Warning

As a result of years of intensive research and development activities, EASYCHEM TOX Early Warning is an original direct reading on-line analyzer based on discrete analysis technology, for fully automated toxicity measurements of water samples using live cultures of luminescent bacteria.

EASYCHEM TOX Early Warning is a on-line automated platform equipped with color touchscreen LCD and housed in an industrial cabinet, comprising a refrigerated compartment, for bacteria, reagents, calibrants and controls. A mechanical arm for aspiration, transferring and dispensing of reagents and samples and a thermostated reaction plate with 80 positions are incorporated with a luminometer, integrated with an automated cuvette washing station.

Easychem TOX Early Warning: acute toxicity automatic measurement with luminescent bacteria

In order to enable an extended time of use of rehydrated cultures by up to ten days, proprietary bioluminescent bacteria were selected, grown, stabilized and lyophilized according to standard methods. Thus, for the required period, the microorganisms preserve a measurable bioluminescence signal and an unaltered sensitivity to different types of reference compounds defined in ISO and GB-T standards, such as zinc sulphate and mercury Chloride. The system is programmed to manage several bacterial vials in succession, thus enabling an high frequency measurement for one month or up to three months of unattended operation with lower measurement frequency.

Fully automated for unattended toxicity monitoring

Timing and frequency of analytical cycles, limits and parameters of quality controls are programmable by the operator and managed automatically. The continuous measurement of blanks and samples at pre-defined time intervals of about 40 seconds, results in the generation of inhibition kinetics, which allow to achieve, from the very beginning of the analysis, preliminary information on the level of sample contamination.  Following a toxicity alert, the system is able to react immediately by automatically replicating samples and performing control checks to confirm identified toxicity, significantly reducing the occurrence of false positives. 
EASYCHEM TOX Early Warning provides local data storage via seriale RS-232 with separate optional analog outputs 4-20 mA, remote data storage on a web server and data transmission via ftp, http and SMS. An immediate alert service is available in case of detected noncompliances. Finally, the management software allows the integration of different instrumentation, thus realizing a truly integrated monitoring station, combining chemical and toxicological on-line control of water samples.

Features and benefits

  • Full automated early warning acute toxicity detection, according to ISO and GB-T standards 
  • Fully automatic operation
  • Long autonomy; low maintenance, low operating cost
  • Very low reagents consumption; no preparation time; low disposable costs
  • Easy operation; plug in analyzer, no special training is required.
Published in On-line analyzers
Wednesday, 12 January 2011 13:51

Portable Analyzers

μMAC-1000 is an online portable analyzer of chemical parameters in water, available either in mono or sequential mutiparametric configuration, providing the highest level of analytical automation and compactness.

μMAC-1000 is the only available high sensitivity multiparametric portable and on-line analyzer using colorimetric approved methods.

The analyzer can measure many type of water samples on a wide range of applications, including sea water.

µMAC-Smart is a portable analyzer fully controlled by an integrated PC with integrated colour Touch Screen, specifically designed for at site monitoring of all water resources.

The analyzer is mounted in a robust and easy-to-transport plastic case including room for reagents and all other accessories. A reagent frame holds all reagent bottles and required solutions.

The analyzer is easy to be installed and it is designed for easy operations, the analyzer can be used at site after a quick training. It is delivered from factory fully tested and ready to use; reagent kits are available for all standard measurements. Results are stored inside the analyzer memory and can be downloaded through USB port .Analyzer start up and operations have never been easier! Just turn on  and insert the reagents: a simple software will guide the operator through all necessary steps.

Published in Portable Analyzers
Wednesday, 12 January 2011 13:50

Applications for Portable Analyzers


  • AMMONIA (colorimetric)
  • AMMONIA (fluorimetric)
  • BOD (fluorimetric "Trypthophan like")
  • NITRATE (Hydrazine reduction)
  • NITRATE (VCl3 reduction)
  • NITRATE (UV reduction)
  • NITRATE (UV 220 nm direct reading)
  • TSS
  • ZINC



Published in Portable Analyzers
Saturday, 15 January 2011 17:03

Laboratory Applications

A Wide Range of Water, Environmental, Beverage, and Industrial

Our routine analyzers performs several manual or automated colorimetric methods. SYSTEA has a powerful applications laboratory that utilizes colorimetric trace metal analysis techniques to evaluate and develop other methods and ranges not included in the standard list. Below is a sampling of the different applications and parameters that can be measured.

Water, Wastewater and Seawater Chemistries (Environmental)

  • Alkalinity
  • Aluminum
  • Ammonia
  • Chloride
  • Chlorine
  • Chromium 6+
  • Cyanide
  • Hardness
  • Iron
  • Manganese
  • Nitrate
  • Nitrite
  • Nitrogen Total Kjeldhal
  • Phenol
  • Orthophosphate
  • Phosphorus, Total Kjeldhal
  • Silicate
  • Sulfate

Plant, Soil Extracts and other Environmental Chemistries

  • Ammonia
  • Boron
  • Calcium
  • Chloride
  • Manganese
  • Nitrite
  • Nitrate
  • Nitrogen Total dissolved
  • Orthophosphate
  • Phosphorus, Total Kjeldhal

Beverage and Food Chemistries

  • Free and Total So2
  • Total and Reducing Sugars
  • Lactic Acid
  • L-Malic acid
  • Volatile Acid
  • Acetic Acid
  • Glucose+Fructose
  • Glycerol
  • Citric Acid
  • Polyphenols
  • Sucrose
  • Amino nitrogen
  • Phosphoric acid
  • Protein
  • Calcium
  • Phosphate
  • Ammonia
  • Cyanide
  • Total soluble Iron
  • Nitrate
  • Nitrite
  • Chloride

Industrial, Feed and Agricultural Chemistries

  • Ammonia or Protein
  • Boron
  • Calcium
  • Color
  • Nitate
  • Phosphate


  • Silicates
  • Sulfate
  • Total Nitrogen
  • Total Phosphorus
  • Vitamins


For inquiries concerning additional parameters, please contact us

Wednesday, 12 January 2011 13:50

Applications in-situ


  • COD (UV)
  • UREA
  • ZINC
Saturday, 15 January 2011 15:02

In-situ filtration

25 microns cut-off filtration cartridge with antifouling capability

The 25 microns cut-off inlet cylindrical filter cartridge (dimensions 30 mm x 100 mm) avoids the clogging of the sample inlet and protect the probe’s inlet tube and internal hydraulics from fouling.

It has to be mounted directly on the sample line and it has to be cleaned regularly at the time of maintenance service.

Autocleaning 25 microns cut-off filtration system with antifouling capability

The same 25 microns cut-off inlet cylindrical filter cartridge is provided coupled with a compressed air generator and sample line rinsing pump: this device produces compressed air at 1 bar to clean automatically the filter; a secondary peristaltic pump updates the outlet of the filter to the inlet of the probe.

This device has to be mounted outside water; the internal air compressor is protected by a water level sensor placed at the bottom of the device. The autocleaning and rinsing sequence is defined by a programmable internal timer.

In-situ 0.1 microns cut-off microfiltration unit with auto back-wash

This microfiltration device with auto-backwash capability is composed by the following components:

  • 25 microns filter with antifouling capability;
  • 0.1 microns cut-off filtration cartridge;
  • PVC IP67 cylinder containing a 12 Vcc peristaltic pump and a three way selection valve, to update the water sample into the 0.1 microns cut-off filtration cartridge and to perform the periodic backwash;
  • 250 ml storage bag, to store the filtered sample to be used for filter backwash after the measurement.

Variable depth sampling system with autocleaning 25 microns cut-off filtration system and antifouling capability

The WIZ variable depth sampling system can be used to allow the measurement of a water sample collected at various depths in a lake, lagoon or estuary, down to -50 m depth.

The system is composed by the following units:

  • raw filter inlet and sample line: the incoming water sample is collected with a raw filter having a cut-off of about 1 mm; the 4 mm I.D. sampling Rilsan type tube can be provided up to 50 m length;
  • submergible sampling pump unit: peristaltic pump, 250ml/min flow at 12 Vcc; this device can be submerged, max. down to -5 m depth;
  • filtration chamber: it contains the 25 µm cut-off filter with autocleaning and biofouling protection: this unit can be opened from the bottom side to ensure a complete manual cleaning of the filter during routine maintenance activities; the internal volume of the filtration chamber is about 250 ml; this device can be submerged too;
  • compressed air generator and sample line rinsing pump: this device produces compressed air at 1 bar to clean automatically the filter; a secondary peristaltic pump updates the outlet of the filter to the inlet of the probe. This device has to be mounted outside water; the internal air compressor is protected by a water level sensor placed at the bottom of the device. The autocleaning and rinsing sequence is defined by a programmable internal timer.

The WIZ variable depth sampling system can be used to allow the measurement of a water sample collected at various depths in a lake, lagoon or estuary, down to -50 m depth.

Monday, 03 January 2011 14:44

WIZ probe

Water in-situ analyzer

WIZ probe is the state of the art portable “in-situ” probe, to measure automatically up to four chemical compounds in surface and sea water.

The innovative design allows an easy handling and field deployment by a single user.

WIZ probe allows, in the standard configuration, the detection at trace levels of the main four nutrients compounds:

  • ammonia (N-NH3)
  • orthophosphate (P-PO4)
  • nitrate + nitrite N-(NO3+NO2)
  • nitrite (N-NO2).

WIZ probe automatically manages the well known spectrophotometric wet chemistries and an advanced fluorimetric method for ammonia measurement.

Many other analytical methods are available on request, including silicates, Total P, Total N, iron and other metals.

WIZ Pro is the most advanced analytical probe for field applications:

  • the 1.5 ml micro Loop Flow Reactor (μLFR*) enables an extremely low consumption of reagents and calibrants
  • the exclusive multibeam compact, optic fibers based, colorimetric detector, coupled with a state of the art fluorimeter
  • the new compact cylindrical design allows the deployment as any conventional water quality monitoring probes available in the market
  • the new innovative “plug-in” and compact reagents container allows an immediate field reagents and calibration solutions changeover.

* Patented

Results are directly provided in concentration units; all measured values are stored with date, time and sample O.D.; the same data are remotely available through a serial communication port, which allows the complete probe configuration and remote control using the external Windows® based Wiz Control Panel software.

The Wiz reagents container:

Reagents and calibrants flexible bags are placed inside the “plug-in” compact reagents container.

The bags are connected to the internal analytical reactor with an enhanced version of our exclusive fast hydraulic 10 lines multiconnector*, ensuring quick replacement in the field.

Reagents consumption is limited to about 30-60 microliters of each reagent per single analysis; the reagents container is designed to contain up to 500 ml of reagents and calibrant solution, to ensure at least 1000 automatic field analysis.

Auto-calibration is performed using concentrated standard solutions, contained in the same reagents container.

* Patent pending




Tuesday, 06 April 2010 12:35

In-situ Probes

SYSTEA proposes a series of submergible multiparametric in-situ probes for sequential automatic analysis of up to four nutrients or other chemical parameters in surface and sea water.

Our probes are specifically designed for unattended monitoring in oceanographic research, environmental protection and biological studies; the following models are available:

The standard wet chemistries for nutrients analysis used in our in-situ probes are optimized to be used for unattended water quality monitoring in surface and sea water: NH3: fluorimetric OPA method PO4: Molibdate, Ascorbic acid colorimetric method NO3+NO2: UV reduction + NED, SAA colorimetric method NO2: NED, SAA colorimetric method.

Other chemical parameters available are: Silicates Total Phosphorous Total Nitrogen Total Dissolved Iron Sulphide.

Features and benefits

Up to four parameters sequentially measured Easy reagents replacement Low reagents consumption (about 200 microliters of each reagent for analysis) Reagents sealed bags refrigerated by surrounding water.

Advanced functionality Toxic waste is collected in a special bag placed inside the reagents compartment (NPA / DPA Pro) or outside the probe's body (WIZ) DI water is used to wash the hydraulic circuit and to perform a diluted measurement Self-cleaning filtration unit available as option.

Tuesday, 06 April 2010 10:51


Nutrients probe analyzer 

NPA Pro is submergible multiparametric in-situ probe for sequential automatic analysis of up to four nutrients or other chemical parameters in surface and sea water, based on μLFR* technology. The standard wet chemistries for nutrients analysis used in NPA Pro are the ones recommended by international standard:

  • NH3: Berthelot reaction
  • PO4: Molibdate, Ascorbic acid
  • NO3+NO2: Cd reduction NED, SAA
  • NO2: NED, SAA.

* Patented

New innovative chemistries are also available to make easier the management of the on site operations:

  • NH3: fluorimetric OPA method
  • NO3+NO2: UV photoreduction method exclusively licensed to Systea by Ifremer (French Research Institute for Exploitation of the Sea).

Other chemical parameters available are:

  • total phosphorous
  • total nitrogen (UV Reduction)
  • total dissolved iron
  • silicates 
  • sulphide.

The NPA Pro has been designed to be best integrated in coastal buoys. The two cylinders can be easily placed on the buoy’s body holes and then simply anchored with chains or hooks or snaphooks.It is made of two different PVC cylinders: 

  • the first one includes hydraulic and electronics components;
  • the second one includes reagents, calibrant, DI water and waste bag.

A single hydraulic connector with 10 tubing is used to connect the second cylinder to the first one. This multi-connector is provided with a valve to open it during functioning and to close it during transportation, to avoid reagent spillage.

Advanteges and benefits

  • Two cylinders are more convenient/easy to deploy: the electronic compartment is never removed;
  • The NPA Pro doesn't unbalances the buoy: the single body, if placed externally, can tilt the whole system that needs redistribution of buoyancy;
  • If needed, the Cd column, may be placed just above the electronic compartment;
  • The reagent compartment may be changed as a whole; its allowance is around 17 litres;
  • Long lasting reagents quantity, expected reagent changeover every 45/60 days.
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