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On-line Chromium VI Analyser CR 200

  • Long range stability thanks to UV spectroscopy
  • No reagent
  • Measurement within 5 seconds
  • Usable with unfiltered water
  • Compact size  

On-line,Chromium VI,Analyser,CR 200On-line chromium VI analysis has become essential to uphold the environmental and sanitary regulations for all kinds of  water: rivers and underground water, drinking water, industrial effluent, sewage.  
Reliability and stability are the main requirements of on-line analysis systems only achieved by UV spectroscopy.  

Main applications

  • Industrial effluent
  • Drinking water mixing
  • Sewage works

Very low operating costs  
The UV spectroscopy measuring principle requires no chemical reagent or calibration solutions resulting in very low operating and maintenance costs.  

No filtration  
Thanks to simple, large bore tubing, turbid  water with particles in suspension can be monitored without clogging risks.  
An optical turbidity compensation maintains correct measurements.  

Automatic cleaning system  
A fully automated cleaning system prevents the measurement flow cell from becoming dirty, giving the analyser autonomy for several weeks without maintenance.  
The cleaning solution (5% sulphuric acid) should be renewed once a month.  
This system is more reliable than falling-stream flow cells or in-medium probes.  

Xenon lamp  
The xenon lamp has a lifetime of 109 flashes, equivalent to 10 years of  use with one measurement every minute.  

Built-in peristaltic pump  
When the water is not pressurised (rivers, effluents, sewage), a peristaltic pump can be added to the analyser. It is synchronized with the measurements to increase the lifetime of the tubes.  

Battery/mains power supply  
For field measurements or isolated sites, a 12V built-in battery can make the analyser autonomous for about 100 measurements.  
For plant applications, the battery provides total immunity against mains disturbances or power cuts, even over a long period.  

Built-in datalogger  
The measurements are dated and stored in a static memory with a capacity of more than 10,000 measurements.  
They can be tranferred later via the RS232 port on a PC without specific software using Hyperterminalâ of Windowsâ. The data are compatible with standard worksheets, particularly Excelâ, to obtain graphs easily.  

Graphic display  
Measurements can be displayed on the graphic screen showing all data obtained during one hour, one day, one week, one month or one year.  
During the measurement cycle, a moving synoptic shows the operation sequence.

0 - 50 mg/l Cr6+ or 0 - 600 mg/l Cr6+
Other ranges on request
At 50 mg/l: +/- 0.1 mg/l Cr6+ typical   
At 200 mg/l: +/- 0.3 mg/l Cr6+ typical
Initial calibration:
+/- 2%  typical
Sample input/output:
Stainless steel fitting for plastic tube external diameter 12 mm
Maximum 5 Bar
0 - 5 L/mn, typical 0.5 L/mn
Sample temperature:
> 0°C - 60°C
4-20 mA insulated,12 bit resolution   
High and low threshold relays
Port 1: RS232 for PC or modem or MODBUS   
Port 2: RS232 for on-line printer
Power supply:
110-120V / 220-240V 50/60 Hz 30VA   
+ built-in 12V battery
Watertight IP559 - Ambient temperature > 0°C - 60°C
400 x 450x 250 mm -Without cleaning system   
650 x 450x 250 mm -With cleaning system
13 Kg -Without cleaning system   
18 Kg -With cleaning system
CE Conformity - EN50081-2, EN50082-2, EN55011
Optional equipments:
  • Peristaltic sampling pump
  • Measurement remote control
  • 4 channels multiplexing system
  • Modem