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

Handheld combustion analyser using electrochemical sensors.

A further development from the tried and tested GA-12 hand-held combustion analyser. This new analyser is equipped with the following extra features:

  • Can be fitted with up to 4 electrochemical sensors.
  • Suitable for a soot test using electronically controlled gas volume.
  • Fitted with a powerful Li ion battery.
  • Big memory capable of storing 32 measurement reports.
  • Backlit graphic LCD
  • Robust metal connectors

An attractive alternative to other, bigger analysers. Manufactured according to the principles of EN50379.
Pictures
Product info
Brochure (97 kB)
Manual (435 kB)
Standard configuration
  • Measurement of gas concentrations
    • Standard version with two gas sensors: O2, CO
    • Two further optional sensors from: NO, NO2, SO2, H2S. NO required as third sensor
    • CO ambient measurement with a resolution of 0.1 ppm
  • Measurement of other parameters
    • Measurement of gas and ambient temperatures
    • Pressure or draft pressure measurements with 0.1 Pa resolution
    • Relative humidity measurement probe - optional
    • Soot/smoke test according to the Bacharach method - electronically regulated to 1.63 l
  • 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 32 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 72 hours operating time from one set of batteries
    • Full graphic display LCD 66 x 36 mm
    • Gas probe with thermocouple and condensate trap
    • Power supply for heated probe holder (when powered from the mains)
    • RS-232C interface and multifunctional PC program
    • Updateable FLASH ROM program memory
    • Simple, intuitive operation, like a mobile phone
Optional accessories
    • differential pressure measurements with 0.1 Pa resolution
    • Flow velocity measurement
    • leather-look case for storage and rubber boot for protection of the instrument
    • Magnetic plate to attach the instrument to steel surfaces
    • External thermal printer with wireless IR communication
Technical data
    • Size: 245 x 90/128 x 60 mm
    • Weight w/o probe: approx. 700 g
    • Display size: 66 x 36 mm
    • Power supply: mains adapter or internal rechargeable battery (24 hours)
    • External power supply: 18 VDC
    • Pump type: membrane pump
    • Probe: heated, with condensate trap and filter
    • Probe length: 300 mm
    • Length of gas line: 2 m
    • Gas filter: in line filter 20 µm
    • Operating temperature: 10 °C ÷ 50°C
    • Storage temperature: -20 °C ÷ +55 °C

Parameter
Method
Indication range
Display resolution
Accuracy
Detection limit
Time (t90)
Standard sensors (O2, CO)
O2 - oxygen, volumetric concentration
electrochemical gas sensor
0..25 %
0.01 %
0.002
0.002
45 s
CO2 - carbon dioxide, volumetric concentration
calculated from volumetric concentration of O2
0..25 %
0.01 %
0.002
0.002
45 s
CO - ambient carbon monoxide, volumetric concentration
electrochemical gas sensor
0..100 ppm
0.1 ppm
±1 ppm or 5 % rel.
1 ppm
45 s
CO - carbon monoxide, volumetric concentration
electrochemical gas sensor
0..2000 ppm
1 ppm
±5 ppm or 5 % rel.
5 ppm
45 s
COmg - carbon monoxide, mass concentration
calculated from volumetric concentration of CO
0...
1 mg/Nm3
±10 mg/Nm3 or 5 % rel.
10 mg/Nm3
45 s
COrel - carbon monoxide, mass concentration relative to O2
calculated from volumetric concentration of CO and O2
0...
1 mg/Nm3
±10 mg/Nm3 or 5 % rel.
10 mg/Nm3
45 s
Optional sensors
CO - carbon monoxide, volumetric concentration
electrochemical gas sensor
0...20.000ppm
1 ppm
±5 ppm or 5 % rel.
5 ppm
45 s
CO - carbon monoxide, volumetric concentration
electrochemical gas sensor
0...10 %
0.01 %
0.05 %
or 5 % rel.
0.01 %
45 s
NO - volumetric concentration of nitrogen oxides
electrochemical gas sensor
0..1000 ppm
1 ppm
±5 ppm or 5 % rel.
5 ppm
45 s
NOmg - mass concentration of nitrogen oxides
calculated from volumetric concentration of NO
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
NOrel - mass concentration of nitrogen oxides relative to O2
calculated from volumetric concentration of NO and O2
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
NO2 - volumetric concentration of nitrogen dioxide.
electrochemical gas sensor
0...500 ppm
1 ppm
±5 ppm or 5 % rel.
5 ppm
45 s
NO2mg - mass concentration of nitrogen dioxide
calculated from volumetric concentration of NO2
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
NO2rel - mass concentration of nitrogen dioxide relative to O2
calculated from volumetric concentration of NO2 and O2
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
SO2 - volumetric concentration of sulphur dioxide
electrochemical gas sensor
0...2000 ppm
1 ppm
±5 ppm or 5 % rel.
5 ppm
45 s
SO2mg - mass concentration of sulphur dioxide
calculated from volumetric concentration of SO2
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
SO2rel - mass concentration of sulphur dioxide relative to O2
calculated from volumetric concentration of SO2 and O2
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
H2S - volumetric concentration of hydrogen sulphide
electrochemical gas sensor
0...500 ppm
1 ppm
±5 ppm or 5 % rel.
5 ppm
45 s
H2Smg - mass concentration of hydrogen sulphide
calculated from volumetric concentration of H2S
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
H2Srel - mass concentration of hydrogen sulfide relative to O2
calculated from volumetric concentration of H2S and O2
0...
1 mg/Nm3
±15 mg/Nm3 or 5 % rel.
15 mg/Nm3
45 s
Further measured values
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
Pressure
DMS bridge
-25 hPa ... +25 hPa
0.1 or 1 Pa set by user
±2 Pa or 5 % rel.
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.
1 Pa
10 s
V - flow velocity
Pitot tube
1..30 m/s
0.1m/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
Soot/smoke test
Bacharach method
0..9
0.5
0.5
0.5
Combustion parameters
TI (CO/CO2-Toxic Index)
calculated
0...0.01
0.0001
5 % rel.
0
45 s
Lambda - excess air number
calculated
1..10
0.01
2 % rel.
0
45 s
qA - combustion losses
calculated
0..100 %
0.1 %
2 % rel.
0 %
45 s
Eta - efficiency
calculated
0..120 %
0.1 %
2 % rel.
0 %
45 s
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