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Madur GA21 Bio+
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Madur GA21 Bio+

( Madur )
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The gas analyser GA-21Bio plus  is designed for use in waste plants where it is necessary to measure the gases produced and the emissions from a connected power or heat generation station. This is now possible with a single instrument thanks to the use of the most modern technology. Like all our instruments, the GA-21Bio plus is manufactured to give a long working life.
Using the optional dryer it is possible to carry out longer term measurements. Three extra analogue inputs allow the simultaneous measurement of a voltage or current signal and a temperature. This makes it ideally suited for measurements on district heating plants. Manufactured with EN50379 in mind.
  • Measurement of gas concentrations
    • Gas concentrations measured with NDIR sensors: CO2, CH4
    • Gas concentrations measured with electrochemical sensors: O2, CO
    • Toxic gas concentrations measured with electrochemical sensors: CO, NO, NO2, SO2, H2S. Please ask for quote for other gases.
  • Measurement of other parameters
    • Measurement of gas and ambient temperatures
    • Pressure, draft and differential pressure measurements with 1 Pa resolution
    • Soot test according to Bacharach with a pump flow of 1.62 l/min
    • Three analogue inputs (1 current/voltage, 1 thermocouple, 1 thermistor)
  • Calculation
    • Calculation of absolute and relative mass concentrations & relative emissions
    • Calculation of all relevant combustion parameters
  • Processing and presentation of measured data
    • All results shown on display
    • Averaging of all measured values. Averaging time: 10 sec - 60min
    • Graphical presentation of all measured values as diagram (option)
    • Memory capacity for 1024 sets of data, organised into 10 data banks
    • Up to 9 separate items in a data set
    • User definition of the 9 items
    • Memory capacity for 30 reports
    • Data logger function for the analogue inputs
    • All measured values, stored values or displays can be printed on the internal printer.
    • Powerful PC program for analyser settings and data communication
  • Software-Eigenschaften
    • International compatibility (language, date format etc.)
    • Password protection for settings
    • Automatic zeroing when the analyser is switched on
    • Calibration of O2/CO2 during use
    • All parameters programmable
    • List of 22 common fuels
    • 10 further freely programmable fuels
    • Permanent automatic check of the instrument with acoustic warning and full information in the "control list"
    • Compensation of cross sensitivity and temperature drift of gas sensors
  • Hardware capabilities
    • Electronic regulation of the pump flow rate
    • Integrated clock/calendar
    • Internal 57 mm dot-matrix printer
    • Power from rechargeable battery or mains
    • Big (70 x 60 mm) LCD display with backlighting (Graphics or 11 x 21 characters)
    • Gas probe with thermocouple and condensate trap
    • Power for heated probe holder during mains operation
    • RS-232C interface and multifunctional PC program