|
|
|
|
|
 |
|
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.
|
|
|
|
|
|
|
|
|
|
|
- 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
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 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
|