Mercury analyzer RA-915M
Mercury analyzer RA-915M is part of an analytical mercury complex that has the unique ability to perform rapid, selective measurements of mercury concentrations in atmospheric air, gas streams, liquid and solid samples. The original optical-electronic circuit of the analyzer provides an ultra-low detection limit for mercury in direct measurement mode (without preconcentration), high selectivity of analysis and a wide dynamic range of measurements. In this model, the battery life from built-in batteries without recharging has been increased to 12 hours, the modernization of the design has increased the moisture and dust resistance of the device, a remote display and a new communication system allow the use of wireless communication, and the ergonomics of the device have been improved. An increased service life of the UV radiation source and a change in the element base increased the reliability of the device. Operation procedure The analyzed air passes through the analytical cell at a speed of 10 l/min and the mercury concentration with a frequency of 1 Hz is displayed on the analyzer display (or on an external computer). Zero control is carried out manually or automatically. The control cuvette built into the analyzer allows you to check the functionality of the analyzer in 1-2 minutes. The mercury analytical complex allows you to solve any problems related to the determination of mercury in natural environments and control of technological processes: searches and localization of mercury pollution outdoors and indoors in continuous air analysis mode; control of the demercurization process when using any chemical reagents; assessment of the quality of demercurization work; determination of mercury content in building materials and surface washouts. Manba: https://www.nv-lab.ru/catalog_info.php?ID=1489
- Feature: Parameter
- Measuring range of mass concentration of mercury vapor in air, ng/m³: 20…20,000
- Limits of permissible basic relative error, d0, %: ±20
- Limit of permissible relative standard deviation of the analyzer output signal, %: 5
- Limit of the permissible value of the standard deviation (RMS) of the zero signal, ng/m³: 2
- Drift of the zero signal of the analyzers over 5 minutes, ng/m³, no more than: 2
- Limit of permissible change in analyzer readings over 8 hours in fractions of d0: 0.5
- Volume flow rate of analyzed air at the analyzer inlet, dm³/min, not less than: 10
- Volumetric air flow rate at the outlet of the analyzer gas system with the inlet closed, dm³/min, no more than: 0.3
- Mercury vapor absorption coefficient by built-in sorption filter, %, not less: 98
- Limit of permissible additional error due to a change in ambient temperature within the operating range for every 10 °C, in fractions of d0: 0.5
- Power, V/Hz: 220/50
- Power consumption, VA, no more than: 35
- Dimensions, mm, no more: 470x110x220
- Weight of analyzers, kg, no more: 7
- Time for analyzers to enter mode, min, no more than: 20
- Time to establish readings, s, no more than: 20
- Continuous operation time of the analyzers from the built-in battery, h, not less: 8
- Mean time between failures, hours, not less: 2500
- Total average service life, years, not less: 5