The sample is continuously drawn from each sampling point through special tubing to a heated multiplexer valve unit. One sample at a time is fed into the Mercury Vapor Monitor where the mercury concentration is measured. All sample lines are permanently purged with sample thus minimizing the response time of the system. By this method sample line lengths of 100 m and even more can be employed.
The MMS system basically comprises a multiplexer-valve unit and the highly accurate and selective mercury detector VM-3000 Vapor Monitor. A bypass pump maintains a steady flow of sample through the sample filters, sample lines and multiplexer valves. Flow meters with optical alarm sensors guarantee that flow rates are stable. All components are installed inside a protective cabinet.
A special version employing the UT-3000 Mercury Ultratracer as detector is available for concentrations in the sub-µg/m³ range.
Options like air conditioning assure reliable function of the system even under extreme climatic conditions.
Number of sampling points:
2 ... 24
Purging of sample lines:
approx. 40 - 80 l/h for each channel
Flow meters with alarm sensors for low flow
Heating of valve unit:
approx. 70 °C
45 sec - 99 minutes,
separately adjustable for each channel
UV absorption (CVAAS),
Wavelength = 253,7 nm
Principle of preconcentration:
(only special version with
Amalgamation on gold surface,
thermal desorption by rapid heating
(standard version with VM-3000)
(special version with UT-3000)
approx. 80 l/h per channel
Construction, weight and Dimensions
metal, protection standard IP 55 (NEMA 4X, others as an option)
from 553 x 600 x 500 mm (WxHxD) to 800 x 2000 x 600 mm; according to number of channels and optional equipment (air conditioning)
approx. 35 - 175 kg; depending on number of channels and optional equipment
PC with Windows XP or higher
Display of measuring data:
current readings numerically, filed data as concentration-time graphs
As a leading supplier of high precision analytical equipment, we strive at all times to offer top quality solutions. Our products are manufactured according to the ISO 9001 quality regulations.