Uniphos Online Total Cyanide Analyzer

Total Cyanide in effluent water refers to the sum of all cyanide-containing compounds, including free/ weak acid as well as dissociable and strong metal cyanide complexes.  

The Uniphos online Cyanide analyzer is a reliable, fully automatic analyzer designed to measure the total cyanide of waste / effluent water samples by an ASTM 7511-09 method. The ASTM 7511-09 method involves acid digestion with UV irradiation and determination of total cyanide by amperometric method. The amperometric technique used is demonstrated to be free of analytical interferences and eliminates the use of hazardous reagents. No human intervention is required during the measurement as the analyzer is completely automated.
The inbuilt diagnostics feature gives an alarm if there are any faulty components or if the reagent level goes below the minimum level. Equipped with a next generation touchscreen HMI for display and programming, the analyzer provides a variety of data communication options such as RS-485 MODBUS and industry standard 4-20 mA analog output 

Application

  • Municipal Water
  • Industrial Process Fluids
  • Wastewater and Effluent Water
  • Ground and Surface water

Features

  • Measures Total Cyanide by UV- digestion with amperometric detection technique according to ASTM Method D7511-09 and OIA 1678.
  • Technique has fewer analytical interferences (positive and negative) and consequently supports a lower method detection limit (MDL) and a broader measurement range.
  • Eliminates preliminary 2-hour acid distillation step prior to analysis.
  • Amperometric detection eliminates use of hazardous pyridine, barbutaric acid reagents required in cyanide analysis by spectrophotometric method.
  • A fully automated system with a industry accredited Program Logic controller (PLC) and Human Machine Interface (HMI)
  • Built in diagnostic features for reagent level alarm and the component malfunctions
  • Data communication compatible with required SPCB/CPCB norms

Specifications

  • Operating principle: UV digestion with amperometry
  • Measurement Technique: Amperometric detection with three electrode system
  • Measuring Range: 10 – 2000 ppb/ 2000-20000 ppb
  • Reference Method: ASTM 7511-09e2
  • Measurement Accuracy: ±20 ppb for 10-200 ppb
                                               ±10% of reading for ≥200 ppb
  • Calibration: Single point calibration
  • Sample injection: Automatic
  • Sampling interval: 30 min
  • Analysis time: 30 min
  • Operating temperature: 20oC to 50oC
  • Display: HMI full touch screen
  • Reagents: NaOH, H2SO4, distilled water, Hypophosphorous acid, ascorbic acid, Bismuth nitrate
  • Power: 230 V AC/ 60 Hz
  • Instrument dimensions:1200 X 400 X 600 mm
  • Instrument weight: 70kg

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