Measurements and Ranges
- According to ISO 6976, ASTM 3588, GPA 2172 at all known reference conditions
- Gross Calorific Value
- Standard Density
- Wobbe Index
- Carbon Dioxide Concentration
- Dry/Wet/Saturated CV
- Inferior CV and Wobbe
- Methane Number
- Ethane Plus Higher Alkanes (Sum)
- Calculated Model Gas Composition
Measurement Uncertainty
- Hs, Ws, r: ≤ 0.5 %, xCO₂: ≤ 0.2 mol %
Repeatability
- Hs, Ws, r: ≤ 0.1 %, xCO₂: ≤ 0.1 mol %
Range of Appropriate Gases
- Methane
- Ethane and Higher Alkanes
- Carbon Dioxide
- Nitrogen
- Oxygen
- Hydrogen
- Water (Gaseous)
- Hydrogen Sulphide
- Dust, Liquids
Calibration Gas
- Methane (purity ≥ 3.5) with automatic calibration cycle
Gas Manifold
- Integrated 2-channel double-block and bleed gas manifold for process and calibration gas
Operational Pressure / Consumption
- Inlet pressure 7 to 72 psi, 0.7 to 11 scft/h (total including adjustable bypass flow)
Dynamics
- Analysis rate f=1 Hz, reaction time t90≤ 10 s (90 % step response)
Power Supply
- 24 Vdc ± 10 %, Max. 40 W (32 to +131° F), Max. 80 W (-13 to +131° F)
Environment
- IP64, -13 to +131° F, 0-95 % RH Non-Condensing
Interfaces
- 1x TCP/IP, 2x RS-485 interface, 4-digital outputs, 2-digital inputs, 4 analog outputs
- Modbus via TCP/IP and serial
Data Logger
- Integrated logging of measurements as mean values (e.g. on hourly basis) or current values. Integrated logging of measurement system status and external events
Operational Interface
- 7-channel capacitive touch panel, internal web page accessible through web browser, PC software (enSuite) for configuration, data logging, display and archive retrieval
Safety Approvals
- Zone 1: Ex II 2G Ex d IIC T4 Gb / Class I, Div. 2 Groups A, B, C, D, T4 (pending)