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Mercury Analyzer for Water and Aqueous Solutions in Process Applications

PA-2 / PA2-Gold

The mercury analyzer PA-2 is used for continuous monitoring of mercury concentrations in industrial processes.

The PA-2 was specially designed for process analysis and operation under harsh industrial condition. The system comes with either the VM-3000 or the UT-3000 photometer to meet different requirements regarding accuracy and sensitivity of measurements.


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  • Fully automatic system
  • Easy menu-driven operation
  • Proven and reliable detection method: AAS
  • 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
  • Quality control in chlorine-alkali plants
  • Monitoring of scrubber water of waste incinerators and power plants
  • Control of industrial sewage
  • Control of purification plants
  • Quality control of sulphuric acid
  • Quality control of drinking water
Technical Specifications
Measuring principleAmalgamation on MI GoldTrap (PA-2 Gold only), cold vapor atomic absorption (CVAAS) at 253.7 nm
UV-SourceElectrodeless low pressure mercury lamp (EDL)
Stabilization methodReference beam method
Optical cellFused silica (Suprasil), lapprox. 230mm, heated approx. 55°
Measuring ranges PA-20.1 … 1 µg/l to 0…10 mg/l
Measuring ranges PA-2 Gold0.01 … 1 μg/l to 0.1 … 10 μg/l
Sensitivity> 0.01 µg/l
Response timeapprox. 1 minute
Sample flowapprox. 20 l/h
Carrier gascompressed air, filtered, approx. 30l/h, 1bar
Reduction reagentTin-II-chloride or Sodiumhydroborate
Reagent consumptionapprox. 3l/week for each reagent
Sample digestionHCl or H2SO4, KMnO4 or H2O2 or Fenton’s Reagent or NaClO3; depending on sample composition
Technical Data
Signal outputsanalogue: 4 – 20 mA (500 Ω max.);
serial: RS232 / USB/td>
Status outputCalibration; Autozero; Service; Malfunction; according to NAMUR 64 recommendations
HousingFibreglass-reinforced polyester, for use in highly corrosive environment – Reagent storage cabinet made of chemically resistent plastic material/td>
Protection classIP 66 (EN 60529/ NEMA 3; 3R; 4; 4X; 12; 13)
Operating temperature0 to 40°C
Sample temperature65°C
Power supply230 VAC / 50 Hz (110 VAC / 60 Hz option)
El. Power consumption750 VA max. (PA-2 Gold, heating peak)
Dimensions (W x H x D)62 x 78 x 33 cm
Weightapprox. 50 kg
  • Our products are manufactured according to ISO 9001 quality regulations.
  • CE approved


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