Wöhler A 450 HCO flue gas analyzer (CO 25,000 ppm)
Wöhler flue gas analyzer (flue gas measurement) A 450 HCO As light and easy to use as a smartphone. This is how the new WÖHLER A 450 HCO flue gas analyzer works for you. The advantages of this device are obvious at first glance: all functions on...
Product code: 5398 Producer: Wöhler Bohemia
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Wöhler flue gas analyzer (flue gas measurement) A 450 HCO
As light and easy to use as a smartphone. This is how the new WÖHLER A 450 HCO flue gas analyzer works for you. The advantages of this device are obvious at first glance: all functions on the display are accessible at the touch of a finger.
The wide range of applications of the A 450 HCO analyzer and its advantages
- device software completely in Czech language
- free application (Wöhler A 450 APP) for your smartphone (smartphone, tablet)
- automatic CO sensor overload protection function
- data export - USB, WLAN or infrared interface
- PC program for data processing in Czech language
- graphic support of measured values
- possibility of saving 1,000 measured values
- strong magnet for holding the device
- wide range of accessories
- protection of the display against damage
- Graphical preview of measured values before printing them
- selectable units for different measurements
- possibility to manually set the O 2 reference value – calculation of periodic inspection TPG 70401
- flue gas path draft measurement
- 4 / 8 Pa Test
- flue gas analysis
- CO measurement around the appliance
- annular measurement
- high reliability
- effective protection against condensate ingress
- device and sensor diagnosis
- flexible measuring hose
Technical data
| O 2 - measured value: | |
| Sensor: | electrochemical |
| Range: | 0 ... 21.0% |
| Accuracy: | ± 0.3% of the reading |
| CO - measured value: | |
| Sensor: | electrochemical |
| Range: | 0 ... 25,000 vol. ppm, resolution 1 vol. ppm |
| Accuracy: | ± 20 ppm (< 400 ppm) otherwise 5% nh |
| Flue gas temperature: | |
| Display: | °C |
| Measurement principle: | thermocouple (NiCr-Ni) |
| Range: | - 20.0 ... 800.0°C, resolution 0.1°C |
| Accuracy: | - 20.0 ...133.0°C: ±2°C 133.0... 800.0°C: ±1.5% of measured value |
| Flue differential draft with 4 Pa test: | |
| Display: | Pascal |
| Measurement principle: | semiconductor membrane |
| Measurement range: | 0.0 ... 110 hPa, resolution 0.1 Pa (< 1000.0 Pa) |
| otherwise 1 Pa, when measuring ventilation loss 0.01 Pa | |
| Accuracy: | ± 0.3 Pa (< 10.0 Pa), otherwise 3% nh, current ≤ 0.2 Pa within 5 minutes |
| Combustion air temperature: | |
| Display: | °C |
| Measurement principle: | thermocouple (NiCr-Ni) |
| Measurement range: | -20...100°C, resolution 0.1°C |
| Accuracy: | ± 1°C |
| 4 Pa test | |
| Measurement principle: | electrical resistance measurement |
| Measurement range: | 10.0...40.0%, resolution 0.1% |
| Accuracy: | ± 40% calculated according to VDI 4206 part 4 |
| General information: | |
| Storage temperature: | -20°C ... 50°C |
| Operating temperature: | + 5 °C ... 40 °C (taking into account maintaining measurement accuracy) |
| Working hours: | approx. 6 h (depending on working conditions and display backlight) |
| Power supply: | lithium-ion battery 3.6 V, 2,250 mAh, charging via USB |
| Weight: | 620 grams |
| Dimensions: | 160 x 110 x 45 mm (without probe) |
| Probe hose length: | 1,500 mm |
Scope of delivery
- basic configuration with measuring hose with 250 mm probe
- CO sensor 25,000 ppm
- pressure sensor for 4/8 Pa test
- USB charging adapter with micro USB cable
- Li-Ion battery

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