• Effluent and quality control in chlorine-alkali plants
• Monitoring of scrubber water in waste incinerators and power plants
• Control of industrial sewage and purification plants
• Quality control of sulfuric acid and caustic solutions
• Environmental monitoring
• Drinking water and surface water analysis

• Fully automatic system with easy menu-driven operation
• Proven and reliable detection method: CVAAS
• Measuring ranges from 10 ppt to 100 ppm
• High flexibility in sample pretreatment
• Suitable for complex sample compositions
• Low reagent consumption
• Corrosion-protected construction
• Automatic self-diagnosis system for reliable operation

The Mercury Process Analyzer PA-2 / PA-2 Gold is designed for continuous monitoring of mercury concentrations in industrial processes and the environment. The PA-2 systems are equipped with either the VM-3000 or the UT-3000 photometer to meet different accuracy and sensitivity requirements.

• Measuring principle: UV absorption (CVAAS), wavelength = 253.7 nm
• Preconcentration principle: Amalgamation on gold, thermal desorption by rapid heating (MI GoldTrap)
• UV source: Electrodeless low-pressure mercury lamp (EDL)
• Stabilization method: Reference beam method
• Optical cell: Fused silica (Suprasil) l = 230 mm, heated to approx. 55°C
• Response time: approx. 1 minute
• Carrier gas: Compressed air, filtered, approx. 30l/h, 1 bar
• Reducing agent: Tin-II-chloride or sodiumhydroborate
• Reagent consumption: approx. 1 ml
• Sample digestion: HCl or H2SO4, KMnO4 or H2O2 or Fenton’s Reagent or NaClO3, depending on sample composition
• Liquid-gas separation: Aerosol-free principle
• Operation: Waterproof membrane keypad
• Measurement display: Graphical LC display with background illumination
• Concentration output: Analogue 4-20 mA, RS 232 / USB
• Status output: Calibration, Autozero, Service, Malfunction according to NAMUR 64 recommendations
• Housing: Fibreglass-reinforced polyester for use in highly corrosive environments
• Protection class: IP 66 (EN 60529 / NEMA 3; 3R; 4; 4X; 12; 13)
• Power supply: 230 V AC / 50 Hz (110 V AC/ 60 Hz)
• Power consumption: 750 VA max. (PA-2 Gold, heating peak)
• Dimensions: approx. 62 x 78 x 33 cm
• Weight: approx. 50kg

• Multiplexer: Allows measuring two different sample points
• Dilution Unit: For samples with high concentrations of salt or caustic soda, dilution ratio up to 1:50, automatic on-line control

The Mercury Process Analyzer PA-2 / PA-2 Gold is enclosed in an industrial-grade cabinet made of fibreglass-reinforced polyester, providing optimum protection against corrosive environments. The electronic circuitry is shielded from the wet chemical section by a chemically resistant wall.