Technical data

FLUE GAS ANALYSIS | WÖHLER A 550
Wöhler A 550 A 550 L
Applications (depends on accessories)
Flue Gas Analysis
4 Pa-test
Wood moisture
Backflow check
Wöhler Tuning Guide
Possible sensors 5 3
Functionality
7" color touchscreen
Fresh air pump, simulta-
neous hot spot search and
calibration
Start-/stop function at probe
1,000 measurement records
USB & infrared
Bluetooth
®
CO clean out pump
Reliability
4-year sensor and
analyzer guarantee
1)
Analyzer self diagnostics
Field replaceable sensors
Visual
filter alarm
Lithium Ion rechargeable
battery with up to 12 h
battery operating time
Scope of supply
Interchangeable probe with
1.7 m hose assembly and
plug-in probe 295 mm
Probe with 1.7 m hose
assembly and fixed probe
275 mm
Combustion air temperature
probe
optional
Wood Moisture Probe optional optional
Pressure measurement
adapter for 4 Pa test
optional
1 water stop filter and
1 coarse filter
Rechargeable battery and
USB battery charger
Case
= included
1)
Except thermocouple, rechargeable battery and special sensors; for further information please
read our Terms and Conditions.
TECHNICAL DATA
Oxygen concentration (O
2
) in flue gas
Display .................................Volume % referenced to dry flue gas
Measurement principle .........Electrochemical sensor
Range .................................. 0.0-21.0 vol. %
Accuracy .............................. ± 0.3 Vol.-%
Carbon monoxide (CO 4000 ppm) in flue gas (Wöhler A 550)
Display .................................Volume ppm referenced to dry flue gas
Measurement principle .........Electrochemical sensor
Range .................................. 0-4,000 vol. ppm; resolution 1 vol. ppm
Accuracy .............................. ±20 ppm (< 400 ppm), otherwise 5% of reading
Carbon monoxide (CO) in flue gas (Wöhler A 550 L)
Display .................................Volume ppm referenced to dry flue gas
Measurement principle .........Electrochemical sensor
Range .................................. 0-35,000 vol. ppm; resolution 1 vol. ppm
Accuracy .............................. ± 100 ppm (< 1,000 ppm),
otherwise 10% of reading (with H
2
< 5% of reading)
Carbon monoxide (CO
high
) in flue gas (optional)
Display .................................Volume ppm referenced to dry flue gas
Measurement principle .........Electrochemical sensorr
Range .................................. 0-100,000 vol. ppm; resolution 1 vol. ppm
Accuracy .............................. ± 100 ppm (< 1,000 ppm),
otherwise 10% of reading (with H
2
< 5 % of reading)
Nitric oxide concentration (NO) in flue gas (optional)
Display .................................Volume ppm referenced to dry flue gas
Measurement principle .........Electrochemical Sensor
Range .................................. 0-3,000 vol. ppm (continuously up to 1,000);
Resolution ............................ 1 vol. ppm
Accuracy .............................. ± 5 Vol.-ppm (< 100 ppm), otherwise 5 % of reading
Nitrogen dioxide concentration (NO
2
) in flue gas (optional)
Display .................................Volume ppm referenced to dry flue gas
Measurement principle .........Electrochemical sensor
Range .................................. 0-1000 vol. ppm (continuously up to 200); resolution 1 vol. ppm
Accuracy .............................. ±5 vol. ppm (< 100 ppm), otherwise 5 % of reading
Sulfur dioxide (SO
2
) in flue gas (optional)
Display .................................Volume ppm referenced to dry flue gas
Measurement principle .........Electrochemical sensor
Range .................................. 0-5,000 vol. ppm; resolution 1 vol. ppm
Accuracy .............................. ± 10 vol. ppm (0...200 ppm), otherwise 5 % of reading
Chimney draught / differential pressure (PD) with 4 Pa test (Wöhler A 550)
Display .................................Pascal
Measurement principle .........Semi-conductor diaphragm
Range .................................. 0.00 to ± 110.00 hPa; resolution 0.1 Pa (< 1000.0 Pa),
otherwise 1 Pa, with ventilation loss measurement 0.01 Pa
Accuracy .............................. 0.3 Pa (< 10.0 Pa), otherwise 3 % of reading
Drift < 0.2 Pa in 5 minutes
Chimney draught / differential pressure (PD) (Wöhler A 550 L)
Display .................................Pascal
Measurement principle .........Semi-conductor diaphragm
Range .................................. 0.00 to ± 110.00 hPa; resolution 1 Pa
Accuracy .............................. 2 Pa (< 40 Pa), otherwise 5% of reading
Flue gas temperature (T
S
)
Display .................................°C
Measurement principle .........Thermocouple (NiCr-Ni) (NiCr-Ni)
Range .................................. -20.0 °C to 800 °C; resolution 0.1 °C
Accuracy .............................. 0-133 °C: ± 2°C
133-800 °C: ± 1.5 % of reading
Combustion air temperature (T
A
)
Display .................................°C
Measurement principle .........Thermocouple (NiCr-Ni)
Range .................................. -20.0 °C to 100 °C; resolution 0.1 °C
Accuracy .............................. ± 1°C
Wood moisture
Display .................................Mass of water referenced to dry fuel mass
Measurement principle .........Electrical resistance measurement
Range .................................. 10.0-40.0%; resolution 0.1%
Accuracy .............................. ±40% of reading tested to VDI 4206 Part 4
Power supply .....................Lithium-Ion, rechargeable battery 3.7 V, 5800 mAh,
charges via USB
Battery operating time ......Approx. 12 h (depends on operating status and display illumination)
Storage temperature .........-20 °C to +50 °C
Operating temperature ......+5-40 °C to maintain stated accuracy
Weight ................................ 1250 g
Dimensions ........................ 220 x 160 x 55 mm (without probe)
Length of cable-hose: .......1700 mm
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VISUAL INSPECTION
MEASURING INSTRUMENTS
LEAKAGE AND PRESSURE
SWEEP INSTRUMENTS
MEASURING INSTRUMENTS
IAQ/BUILDING
MEASURING INSTRUMENTS
FLUE GAS ANALYSIS