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ULTRA.sens - Model AK250 -Gas Measurement Module
The ULTRA.sens® is the world’s first OEM gas measurement module based on miniaturized UV LEDs. The stability and lifetime of these UV-LEDs enables high-precision gas analyses down to the ppb range. By using two UV-LEDs 2 gases can be detected simultaneously. With this approach, 2 measuring ranges from ppm to Vol.-% can also be realized. In the spectral range from 200 nm to 500 nm, nitrogen oxides (NO+NO2), aromatic hydrocarbons, hydrogen sulphide, ozone, sulphur dioxide and chlorine can be reliably detected with this novel sensor platform.
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General characteristics * :
- Measuring principle : Non-dispersive ultraviolet (NDUV); dual beam
- Measuring range : see list of measuring ranges
- Gas flow : 0.1 – 1.5 l/min
- Dimensions : 348mm x 120mm x 82mm
- Weight : approx. 720g
- Pipe connectors : 4/6mm tube
- Lifespan of the UV radiation source : > 40 000 hours
Measurement reaction * :
- Warm-up time : 1 min (initial),
- Response time (t 90 ) : 1.5s – 15s 3
- Detection limit (3·σ) : < 0.25 ppm 4
- Linearity error : < ± 0.5 %FS
- Repeatability : ± 0.5 % FS1
- Long-term stability (zero) : < ± 2 %FS /24h
- Long-term stability (range) : < ± 2 %FS /month
- Temp. Influence Zero : < 1%FS/10K
- Temp. Influence Range : < 2 %FS /10K 5
- Cross sensitivity : < 2 %FS 6
- Pressure influence : < 1.5%/10hPa of reading
Electrical inputs and outputs :
- Supply voltage : 24 (15 – 30) VDC
- Supply current (peak) : < 0.1A
- Power consumption (average) : < 1W
- Digital output signal : RS 232 (ASCII) or CAN bus
Climatic conditions :
- Operating temperatur * : 5 – 45 °C
- Storage temperature : -20 – 60 °C
- Air pressure : 600 – 1200 hPa (mbar)
- Ambient humidity : 0 – 95% relative humidity (non-condensing)