AppliTek's mercury (Hg) analyzer system is a state of the art monitor using Atomic Absorption Spectroscopy (AAS) to determine on-line the mercury level in stack gases, even with strongly bound mercury that can cause false readings. The system includes a thermal catalyst, integrated within the sampling probe, reducing ionic mercury compounds to elemental mercury vapor. The mercury is finally measured in a UV atomic absorption photometer.
On top of that, a special amalgamation unit eliminates completely cross-interference from organic components, such as NO, NOX and VOCs. This measurement mode can deal with extremely small concentrations but is restricted to batchwise readings (discontinuous). When concentrations exceed a user-defined threshold, however, the On-line Mercury Analyzer switches automatically to the continuous mode.
The On-line Mercury Analyzer comes factory calibrated and needs virtually no further calibration nor maintenance.
Thermocatalytic converter integrated in the sampling probe, easily accessible
Automatic switching between continuous/discontinuous mode (amalgamation unit)
Human interface: 4-line color TFT display, backlit
Temperature controlled high-frequency UV excitation lamp
Continuous operation (no integration time)
Detection limit less than 1 µg/m3
Factory calibrated (FAT certificate included)
Automatic zero point calibration
Pressure and temperature compensation
Response time selectable (1s up to 30s)
Communication: 4 - 20 mA, RS232
Supplied as an integrated system in a dedicated rack cabinet with all necessary connections and communications.