RA-915 CEM Civa Emisyon Monitörü
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Ra 915 CEM is an industrial system for direct total mercury determination in stack gas with dry converter. Designed for outdoor installation on the stack, no heated lines needed. |
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Designed for outdoor installation directly on a stack the Monitor continuously measures total mercury mass concentration in stack gases, including metallic, oxidized, and particulate bound mercury species.
Oxidized mercury is completely reduced to its elemental form through the thermal conversion.
Mercury concentration is determined by Zeeman atomic absorption spectrometry using high frequency modulation of light polarization.
The Monitor presents the mercury concentration at standard conditions. Measurements are taken on hot wet basis.
- direct determination of total mercury without using any absorption traps
- no wet chemistry, reagent-free analysis
- no catalyst in the converter
- real-time measurements, minimal measuring time is one second
- high selectivity of the measurements, insensitive to interfering components
- no need in heated lines
- no need for compressed air
- automatic drift and span correction
- optional calibration by injecting a calibration gas mixture directly into the converter
| Measured component |
total mercury |
| Measuring principle |
thermal conversion, atomic absorption spectrometry, Zeeman background correction |
| Measuring range |
0 - 75 µg/m3; 0 - 150 and 0 - 300 µg/m3 optional |
| Detection limit |
< 0,1 µg/m3 |
| Cross-sensitivities |
≤ 4% of measuring range |
| Response time (T90) |
< 30 seconds |
| Zero point |
automatic zero correction |
| Sample gas flowrate |
1 l/min |
| Operating temperature |
from -20 to +50oC |
| Power requirements |
110 V, 60 Hz, 1800 W |
| Dimensions & weight |
980õ655õ450 mm, 72 kG |
| Protection class |
IP 55 |
| Signal outputs |
analog: 4-20 mA |
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digital: RS-485, RS-232 |
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status relays: Operating, Maintenance, Failure |
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