| Measuring Gas  | 
            Carrier Gas  | 
            Basic range  | 
            Smallest range  | 
            Smallest suppressed zero range  | 
            Multi Gas Mode  | 
        
        
            | H2  | 
            N2 or air  | 
            0% -100%  | 
            0% -0.5%  | 
            98% -100%  | 
            Yes  | 
        
        
            | H2  | 
            Ar  | 
            0% -100%  | 
            0% -0.4%  | 
            99% -100%  | 
            Yes  | 
        
        
            | H2  | 
            He  | 
            20% -100%  | 
            20% -40%  | 
            85% -100%  | 
            On request  | 
        
        
            | H2  | 
            CH4  | 
            0% -100%  | 
            0% -0.5%  | 
            98% -100%  | 
            On request  | 
        
        
            | H2  | 
            CO2  | 
            0% -100%  | 
            0% -0.5%  | 
            98% -100%  | 
            On request  | 
        
        
            | He  | 
            N2 or air | 
            0% -100%  | 
            0% -0.8%  | 
            97% -100%  | 
            Yes  | 
        
        
            | He  | 
            Ar  | 
            0% -100%  | 
            0% -0.5%  | 
            98% -100%  | 
            Yes  | 
        
        
            | CO2  | 
            N2 or air  | 
            0% -100%  | 
            0% -3%  | 
            96% -100%  | 
            Yes  | 
        
        
            | CO2  | 
            Ar  | 
            0% -60%  | 
            0% -10%  | 
            -  | 
            Yes  | 
        
        
            | Ar  | 
            N2 or air | 
            0% -100%  | 
            0% -3%  | 
            96% -100%  | 
            Yes  | 
        
        
            | Ar  | 
            O2  | 
            0% -100%  | 
            0% -3%  | 
            96% -100%  | 
            Yes  | 
        
        
            | Ar  | 
            CO2  | 
            40% -100%  | 
            -  | 
            80% -100%  | 
            Yes  | 
        
        
            | CH4  | 
            N2 or air | 
            0% -100%  | 
            0% -2%  | 
            96% -100%  | 
            Yes  | 
        
        
            | CH4  | 
            Ar  | 
            0% -100%  | 
            0% -1.5%  | 
            97% -100%  | 
            Yes  | 
        
        
            | O2  | 
            N2  | 
            0% -100%  | 
            0% -15%  | 
            85% -100%  | 
            Yes  | 
        
        
            | O2  | 
            Ar  | 
            0% -100%  | 
            0% -2%  | 
            97% -100%  | 
            Yes  | 
        
        
            | N2  | 
            H2  | 
            0% -100%  | 
            0% -2%  | 
            99,5% -100%  | 
            Yes  | 
        
        
            | N2  | 
            Ar  | 
            0% -100%  | 
            0% -3%  | 
            97% -100%  | 
            Yes  | 
        
        
            | N2  | 
            CO2  | 
            0% -100%  | 
            0% -4%  | 
            96% -100%  | 
            On request  | 
        
        
            | NH3  | 
            H2  | 
            0% -100%  | 
            0% -5%  | 
            95% -100%  | 
            On request  | 
        
        
            | NH3  | 
            N2  | 
            0% -100%  | 
            0% -10%  | 
            60% -100%  | 
            On request  | 
        
        
            | CO  | 
            H2  | 
            0% -100%  | 
            0% -2%  | 
            99% -100%  | 
            On request  | 
        
        
            | SF6  | 
            N2 or air | 
            0% -100%  | 
            0% -2%  | 
            96% -100%  | 
            On request  | 
        
    
    
    
        
            | Dimensions without connectors; weight  | 
            145mm x 80mm x 85mm; max. 1800g  | 
        
        
            | Power supply  | 
            24V DC (18V to 36V), 700mA  | 
        
        
            | Ambient temperature range  | 
            -5°C to 50°C, other on request  | 
        
        
            | Linearity  | 
            < 1% of range  | 
        
        
            | Warm up time  | 
            About 30min; 1h for small ranges  | 
        
        
            | Flow rate  | 
            40l/h to 150l/h; 60l/h -80l/h recommended  | 
        
        
            | T90-time  | 
            <1sec at flow rate higher 60l/h  | 
        
        
            | Noise  | 
            < 1% of smallest range  | 
        
        
            | Drift at zero point  | 
            < 2% of smallest range per week  | 
        
        
            | Repeatability  | 
            < 1% of range  | 
        
        
            | Error due to change of ambient temperature  | 
            < 1% of smallest range per 10°C  | 
        
        
            | Error due to change of flow at 80l/h  | 
            < 1% of smallest range per 10l/h  | 
        
        
            | Gas pressure  | 
            Max. 2MPa (20bar)  | 
        
        
            | Error due to change of pressure (above 800hPa abs.)  | 
            < 1% of smallest range per 10hPa  | 
        
    
 
    
• Accurate and long term stable thermal conductivity measurement
• High sensitivity e.g. 0-0.5Vol.% H2 in N2 range; Low noise <10ppm H2 in N2
• Precise linearization for the gas mixtures as H2, He, CO2, CH4 in N2 or Ar and N2 in Ar on board
• Customized linearization with polynomial up to sixth order
• Multi Gas Mode allows sequential indication of up to 15 binary mixtures
• Isolated 4-20mA output, expandable; free set of start and end within 100 Vol.% range
• Classic 2-point calibration or simple one-gas calibration
• Free set of display indication (ppm or Vol.%) at a resolution up to 1ppm
• Cross sensitivity compensation by feed in of external signal and internal calculation
• Fast response with a T90-time of less than 1 sec (depending on flow rate)
• Pressure proof (20bar) and vacuum leak tight stainless steel (LF316i) gas duct
• Three isolated relays for indication of alarms and instrument status
• RS 232 excess to all values and parameters
• Digital output with 1ppm resolution over the whole 100Vol.% rangePC-based service program simplifies all settings, linearization and calibration
• Small and robust transmitter in Al-housing for field use (protection class: IP65)
• Dimensions: Width 145mm, Height 80mm (without connectors), Depth 85mm
• Power supply 18V to 36V DC / 700mA
    
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