envea Mercury Instruments Mercury Process Analyzer PA-2 / PA-2 Gold The Mercury Process Analyzer PA-2 / PA-2 Gold is meant for continuous monitoring of mercury concentrations in industrial processes and in the environment MAIN APPLICATIONS ■ effluent and quality control in chlorine-alkali plants ■ monitoring of scrubber water of waste incinerators and power plants ■ control of industrial sewage and purification plants ■ quality control of sulphuric acid and caustic solutions ■ environmental monitoring ■ drinking water ■ surface water PA-2 or PA-2 Gold? The PA-2 Systems come with either the VM-3000 or the UT-3000 photometer to meet different requirements regarding accuracy and sensitivity of measurements: PA-2 measuring ranges: 0.1 ... 1|jg/l to 0 ... 10mg/l PA-2 Gold measuring ranges: 0.01 ... 1 jg/l to 0.1 ... 10jg/l Thanks to its GoldTrap, the UT-3000 is able to measure mercury in ultra trace concentrations (ppt range). SPECIFIC FEATURES ■ Fully automatic system ■ Easy menu-driven operation ■ Proven and reliable detection method: CVAAS ■ Measuring ranges from 10 ppt to 100 ppm ■ High flexibility of sample pretreatment ■ Suited for complex sample compositions ■ Low reagent consumption ■ Corrosion-protected construction ■ Automatic self diagnosis system for reliable operation

TECHNICAL SPECIFICATIONS Measuring principle: UV absorption (CVAAS), wavelength = 253.7 nm Amalgamation on gold, thermal desorption by rapid heating (MI GoldTrap) Electrodeless low-pressure mercury lamp (EDL) Stabilization method: Reference beam method INDUSTRIAL GRADE DESIGN Optical cell: Measuring ranges: Response time: Fused silica (Suprasil) l = 230 mm heated, approx 55°C • PA-2: 0.1 ... 1|jg/l to 0 ... 10mg/l • PA-2 Gold: 0.01 ... 1|jg/l to 0.1 ... 10pg/l approx. 1 minute compressed air, filtered, approx. 30l/h, 1 bar Reducing agent: Tin-II-chloride or sodiumhydroborate Reagent consumption:...