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Rauchgasanalysegerät GA-12
Products >> Gas Analysers >> Hand-Held-Instruments >> GA-12
GA-12 low-cost handheld combustion analyser
GA-12

Small, low cost hand-held combustion analyser using electrochemical sensors.
The smallest combustion analyser from madur. A full-blood analyser despite the compact size. This combustion analyser can be fitted with up to 3 electrochemical sensors. This is an attractive alternative to other, larger analysers on the market. Is especially suited to short-term measurements on small burner systems. Designed according to EN50379.
Pictures
Product info
Brochure (90 kB)
Manual (365 kB)
Control software
(27 MB)
Application possibilities
  • Combustion gas analysis
  • Emmision measurement from internal combustion engines
  • Boiler regulation
  • Burner emission checks
Standard configuration
  • Measurement of gas concentrations
    • Standard version with two gas sensors: O2, CO
    • Optional gas sensor NO
    • CO ambient measurement with a resolution of 0.1 ppm
  • Measurement of other parameters
    • Measurement of gas and ambient temperatures
    • Pressure, draft and differential pressure measurements with 0.1 Pa resolution
    • Flow velocity measurement
    • Relative humidity measurement probe - optional
  • Calculation
    • CO2 concentration
    • Calculation of all relevant combustion parameters
  • Processing and presentation of measuring data
    • All results shown on display
    • Averaging of all measured values. Averaging time: 2, 10, 20, 30, 60, 120, 180 seconds
    • Graphical presentation of all measured values as diagram
    • Storage for 16 measurements - "measure now, print later"
    • Powerful PC program for analyser settings and data communication
  • Software capabilities
    • Automatic zeroing when the analyser is switched on
    • All settings for the analyser carried out with PC programm
    • List of 6 common fuels (from DIN or OENORM)
    • 4 further freely programmable fuels
    • Permanent automatic check of the instrument with acoustic warning and full information in the "control list"
  • Hardware capabilities
    • Integrated clock/calendar
    • IR interface for external printer
    • Incredible 75 hours operating time from one set of batteries
    • Full graphic display LCD 66 x 36 mm
    • Gas probe with thermocouple and condensate trap
    • RS-232C interface and multifunctional PC program
    • Updateable FLASH ROM program memory
    • Simple, intuitive operation, like a mobile phone
Optional accessories
    • leather-look case for storage and rubber boot for protection of the instrument
    • Backlighting
    • Magnetic plate to attach the instrument to steel surfaces
    • External thermal printer with wireless IR communication
Technical data
    • Size 245 x 116 x 45 mm
    • Weight 600 g
    • Probe length 150 mm
    • Length of gas line 2 m
    • In line filter 20 µm
    • Display 38 x 6 6mm
    • Power supply 6 V ( 4 x AA) Battery
    • External power supply 9 VDC
    • Membrane pump
    • Operating temperature 10 °C ÷ 50°C
    • Storage temperature -20 °C ÷ +55 °C

Parameter Measuring method Range Resolution Accuracy Detection
Limit		 Time (T90)
O2 - oxygen, volumetric concentration
 electrochemical gas sensor 0..25 % 0.01 % ±0.2 % or
2 % rel.		 0.01 % 45 s
CO2 - carbon dioxide, volumetric concentration
 calculated from volumetric concentration of O2 0..25 % 0.01 % ±0.2 % or
2 % rel.		 0.01 % 45 s
CO - ambient carbon monoxide, volumetric concentration
 electrochemical gas sensor 0..100 ppm 0.1 ppm ±0.5 ppm or
5 % rel.		 0.1 ppm 45 s
CO - carbon monoxide, volumetric concentration
 electrochemical gas sensor 0..20000 ppm 0.1 ppm or
1 ppm as set		 ±5 ppm or
5 % rel.		 1 ppm 45 s
COmg - carbon monoxide, mass concentration
 calculated from volumetric concentration of CO 0... 1 mg/Nm3 ±5 mg/Nm3
or 5 % rel.		 1 mg/Nm3 45 s
COrel - carbon monoxide, mass concentration relative to O2
 calculated from volumetric concentration of CO and O2 0... 1 mg/Nm3 ±5 mg/Nm3
or 5 % rel.		 1 mg/Nm3 45 s
NO / NOx - volumetric concentration of nitrogen oxides.
 electrochemical gas sensor 0..1000 ppm 0.1 or 1 ppm
set by user		 ±5 ppm or
5 % rel.		 1 ppm 45 s
NOmg/NOxmg - mass concentration of nitrogen oxides
 calculated from volumetric concentration of NO 0... 3 mg/Nm3 ±3 mg/Nm3
or 5 % rel.		 3 mg/Nm3 45 s
NOrel / NOxrel - mass concentration of nitrogen oxides relative to O2
 calculated from volumetric concentration of NO and O2 0... 3 mg/Nm3 ±3 mg/Nm3
or 5 % rel.		 3 mg/Nm3 45 s
Tgas - flue gas temperature
 Thermocouple -10..1000°C 0.1 or 1°C
set by user		 ±2 °C or
1.5 % rel.		 1 °C 30 s
Tamb - ambient temperature
 Thermistor -10..100°C 0.1 or 1°C
set by user		 ±1 °C 1 °C 30 s
TI (CO/CO2-Toxic Index)
 calculated 0...0.01 0.0001 0.0001
Lambda - excess air number
 calculated 1..10 0.01 0.01
qA - combustion losses
 calculated 0..100% 0.1% 0.1%
Eta - efficiency
 calculated 0..120% 0.1% 0.1%
Pressure
 DMS bridge -25 hPa ...
+25 hPa		 0.1 or 1 Pa
set by user		 ±2 Pa or
5 % rel.		 0.1 Pa 10 s
Diff. Pressure
 DMS bridge -25 hPa ...
+25 hPa		 0.1 or 1 Pa
set by user		 2 Pa or
1 % rel.		 0.1 Pa 10 s
V - flow velocity
 Pitot tube 1..30 m/s 0.1 m/s 0.5 m/s or
2 % rel.		 1 m/s 10 s
rH -relative humidity
 capacitive sensor 5..95 % 0.01 % 2 % rH or
2 % rel.		 5 % 10 s
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