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| Portable gas analyzer using electrochemical gas sensors. |
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The flue gas analyser GA-21plus is designed especially for service technicians who are permanently employed in measuring emissions and carrying out adjustments on various burner and heating equipment. Using the optional NO and NO2 sensors it is possible to calculate NOx simply as the sum of NO and NO2. SO2 can also be measured if needed. All parts of the analyser are designed for a long and trouble-free operation.
Using the optional Peltier dryer it is possible to carry out longer term measurements. Two extra analog 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. |
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| Standard configuration |
- Measurement of gas concentrations
- Gas concentrations measured with NDIR sensors: CO2, CH4
- Gas concentrations measured with electrochemical sensors: O2
- Toxic gas concentrations measured with electrochemical sensors: CO, NO, NO2, SO2. 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 1.5 lpm
- Flow velocity (Option)
- Three analog inputs (1current/voltage, 1 thermocouple, 1 thermistor)
- Calculation
- CO2 concentration
- Calculation of absolute and relative mass concentrations & relative emissions
- Calculation of all relevant combustion parameters
- Processing and presentation of measuring data
- All results shown on display
- Averaging of all measured values. Averaging time: 10 sec - 60 min
- Graphical presentation of all measured values as diagram
- 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 analog inputs
- All measured values, stored values or displays can be printed on the internal printer.
- Powerful PC program for analyzer settings and data communication
- Software capabilities
- International compatibility (language, date format etc.)
- Password protection for settings
- Automatic zeroing on power-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 2.25" dot-matrix printer
- Power from rechargeable battery or mains
- Big (3" x 2.5") 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
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| Technical data |
- Size of case W x H x D: 18’’ x 6’’ x 7’’
- Weight w/o probe: 13 lbs
- Display size: Graphical - LCD, with backlighting and variable contrast, 128 x 112 pixels, 3" x 2,5"
- Printer: high-speed dot matrix printer with graphics capability for 2.25" normal paper
- Data memory: Memory for 30 reports and 10 banks containg a total of 1024 sets of data
- CO - measurement channel: Separate from the other gas channels. If the freely programmable maximum is exceeded then the sensor is purged with air, without interrupting the other measurements
- Interface: RS232C
- Power supply: 90 ÷ 230 VAC 50 ÷ 60 Hz
- Charging time: Lead-acid battery 12 V / 2.2 Ah, charging time 10 h, working time approx. 6 h (w/o dryer))
- Gas pump: Membrane pump, electronically regulated at 1.5 lpm
- Probe: Inconel stainless steel probe with pistol grip. Heated for soot test
- Probe length: 12" (other options available)
- Length of gas line: 10 ft.
- Gas filter: In line filter 20 µm
- Operating temperature: 10°C ÷ 50°C
- Storage temperature: -20°C ÷ +55°C
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| Optional accessories |
- Choice of soft carrying case or hard housing
- Mini Peltier gas dryer with peristaltic pump
- External ambient temperature sensor
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