Wohler A 550 INDUSTRIAL
Portable Flue Gas Emissions Analyzer with
superior accuracy
ADVANTAGES
··7" color-touchscreen as intuitive to use as a smartphone··NOx and SOx emissions measurement with 0,1 ppm resolution
··In-stack sinter-filter probe for dust protection
··Battery-driven peltier cooler device – more than 4 h off-grid operation time
··High-power sample pump for differential pressures up to 300 mbar
··Built-in logger function with user selectable configuration
TECHNICAL DATA
Oxygen concentration (O2) in fl ue gasDisplay ....................................Volume % referenced to dry fl ue gas
Measurement principle .............Electrochemical sensor
Range .....................................0.0…21.0 Vol. %
Accuracy .................................±0.3 Vol. %
Carbon monoxide (CO 100,000) in flue gas
Display ....................................Volume ppm referenced to dry flue gas
Measurement principle .............Electrochemical sensor
Range .....................................0…100,000 Vol. ppm; resolution 1 Vol. ppm
Accuracy .................................±100 Vol. ppm (< 1,000 Vol. ppm), otherwise 10 % of reading (with H2 < 5 % of reading)
Nitric oxide concentration (NO) in flue gas
Display ....................................Volume ppm referenced to dry flue gas
Measurement principle .............Electrochemical sensor
Range .....................................0…3,000 Vol. ppm (continuously up to 1,000); resolution 0.1 Vol. ppm (< 1,000 Vol. ppm), otherwise 1 Vol. ppm
Accuracy .................................±5 Vol. ppm (< 100 Vol. ppm), otherwise 5 % of reading
Nitrogen dioxide concentration (NO2) in flue gas
Display ....................................Volume ppm referenced to dry flue gas
Measurement principle .............Electrochemical sensor
Range .....................................0…1,000 Vol. ppm (continuously up to 200 Vol. ppm);resolution 0.1 Vol. ppm
Accuracy .................................±5 Vol. ppm (< 100 ppm), otherwise 5 % of reading
Sulfur dioxide concentration (SO2) in flue gas
Display ..........................................Volume ppm referenced to dry fl ue gas
Measurement principle ...............Electrochemical sensor
Range ............................................0…5,000 Vol. ppm; resolution 0.1 Vol. ppm (< 1,000 Vol. ppm), otherwise 1 Vol. ppm
Accuracy .......................................±10 Vol. ppm (< 200 Vol. ppm), otherwise 5 % of reading
Differential pressure (PD)
Display ..........................................Pascal
Measurement principle ...............Semi-conductor diaphragm
Range ............................................0.00…±110.00 hPa; resolution 0.1 Pa (< 1,000 Pa), otherwise 1 Pa
Accuracy .......................................0.3 Pa (< 10.0 Pa), otherwise 3 % of reading
Flue gas temperature (TS)
Display ..........................................°C
Measurement principle ...............Thermocouple (NiCr-Ni) (NiCr-Ni)
Range ............................................-20.0…800 °C; resolution 0.1 °C
Accuracy .......................................0…133 °C: ±2°C 133…800 °C: ±1.5 % of reading
Combustion air temperature (TA)
Display ..........................................°C
Measurement principle ...............Thermocouple (NiCr-Ni)
Range ............................................-20.0…100 °C; resolution 0.1 °C
Accuracy .......................................±1°C
Power supply .............................Lithium-Ion, rechargeable battery 3.7 V, 5800 mAh, charges via USB
Battery operating time ...........Approx. 7 h (depends on operating status and display illumination)
Storage temperature ...............-20…+50 °C
Operating temperature ...........+5…40 °C to maintain stated accuracy
Weight .........................................1,250 g
Dimensions ................................220 x 160 x 55 mm (without probe)
Length of cable-hose ..............1,700 mm
US 6954 
BR 4285 
CA 1622 
AU 1603 
TH 1554 
JP 1440 
SG 1165 
VN 1108 
