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ULTRA.sens process line - Model AK25 -UV 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 : 225mm x 120mm x 89mm
- Weight : approx. 600 g
- Pipe connectors : 4/6mm tubes
- Lifespan of the UV radiation source : < 20 000 hours
Measurement reaction * :
- Warm-up time : 1 min (initial), <15 min 2
- Response time (t 90 ) : 1.5s – 15s 3
- Detection limit (3·σ) : < 0.1 %FS4
- Linearity error : < ± 1 %FS
- Repeatability : ± 0.5 %FS
- Long-term stability (zero) : < ± 1 %FS /24h
- Long-term stability (range) : < ± 1 %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
- related to Pa = 1020hPa ; Ta= 25°C ; flow = 1l/min//1 FS measuring range end value//2 full specification, environmental requirements//3 depending on the settings of the digital filter//4 at zero point//5 with temperature compensation of the span//6 for each calibrated gas channel, other gases on request//7 without pressure compensation
Electrical inputs and outputs :
- Supply voltage : 24 (15 – 30) VDC
- Supply current (peak) : < 0.4A
- Power consumption (average) : < 7.5W
- Digital output signal : RS 232 (ASCII) or CAN bus
Climatic conditions :
- Operating temperatur * : 5 – 45°C
- Storage temperature : -20 – 60°C
- Air pressure : 800 – 1200 hPa (mbar)
- Ambient humidity : 0 – 95% relative humidity (non-condensing)