Tiếng Việt
Trace metal analysis of dissolved Arsenic As(III) in water by online voltammetry
About the 6000 Series
The EZ6000 Series of Online Trace Metal Analyzers are based on the technology of stripping voltammetry, a sensitive analytical technique that can be automated for the determination of trace levels of metals in water. For many metals the EZ6000 Series boasts limits of quantification in the low ppb range, comparing the technique favorably with AAS or ICP analysis.
Single, multiple and total parameter configurations
Several product sublines with a wealth of combinations are available for determination of trace metals, including the standard single parameter and multi-parameter configurations without digestion. Measurement of complexed or adsorbed metals is possible by means of the configurations with built-in digester. Combinations of metals depend on the choice of working electrode and the priority metals for your application.
Advanced features
The EZ6000 Series build upon tried and tested voltammetry technology used in many clean water applications, in an industrial mainframe with the following prime features:
– Excellent selectivity and sensitivity
– Built-in sample digestion unit (hot acid or UV)
– Smart automatic features
– Standard 4 – 20 mA signal output with alarm processing
– Communication ports supporting connectivity to Modbus
– Higher measuring ranges: internal sample dilution
– Multiple stream analysis
There are many additional options available. Please contact Hach for more details.
| Alarm | 1 x malfunctioning, 4 x user-configurable, max. 24 VDC/0.5 A, potential free contacts |
| Ambient Temperature | 10 – 30 °C ±4 °C deviation at 5 – 95% relative humidity (non-condensing) |
| Analog Outputs | Active 4 – 20 mA max. 500 Ohm load, standard 1, max. 8 (option) |
| Automatic cleaning | Yes |
| Calibration | Automatic, 2-point; frequency freely programmable |
| Certifications | CE compliant / ETL certified |
| Cooling Water | Not required |
| Cycle Time | 10 minutes (dilution + 5 min.) |
| Demineralized Water | For rinsing |
| Digital Outputs | Optional: Modbus (TCP/IP, RS485) |
| Dimensions (H x W x D) | 690 mm x 465 mm x 330 mm |
| Drain | Atmospheric pressure, vented, min. Ø 32 mm |
| Earth Connection | Dry and clean earth pole with low impedance (< 1 Ohm) using an earth cable of > 2.5 mm² |
| Instrument Air | Dry and oil free according to ISA-S7.0.01-1996 quality standard for instrument air |
| Interferences | Iodide, organic matter, copper Cu(II) > 30 µg/L, iron Fe(III) >20 mg/L, various metals in mg/L levels may interfere. Fats, oil, proteins, surfactants and tar. |
| Lower Limit of Detection (LOD) | ≤ 1 µg/L |
| Material | Hinged part: Thermoform ABS, door: PMMA Wall section: Galvanized steel, powder coated |
| Measurement Method | Stripping voltammetry using gold electrode |
| Model | EZ6000 |
| Number of sample streams | 1, 2, or 4 |
| Parameter | Arsenic, dissolved As(III) |
| Power | 100 – 240 VAC, 50/60 Hz Max. power consumption: 120 VA |
| Precision | Better than 5% full scale range for standard test solutions |
| Protection Class | Analyzer cabinet: IP44 / Panel PC: IP65 |
| Range | 1 – 20 µg/L As |
| Range | 1 – 20 µg/L As |
| Reagent Requirements | Keep between 10 – 30 °C (50 – 86 °F) |
| Sample Flow Rate | 100 – 300 mL/min |
| Sample Pressure | By external overflow vessel |
| Sample Quality | Maximum particle size 100 µm, < 0.1 g/L; Turbidity < 50 NTU |
| Sample Temperature | 10 – 30 °C (50 – 86 °F) |
| Validation | Automatic; frequency freely programmable |
| Warranty | 12 months |
| Weight | 25 kg (55 lbs.) |
| What’s included? | EZ6000 Arsenic Analyzer, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 1 x Counter Electrode – Platina, 1 x Working Electrode – Gold, 1 x Reference Electrode – Ag/AgCl, 1 x empty 10L Reagent Container with Fittings (H2SO4 Solution) and 1 x empty 5L Reagent Container with Fittings (Buffer Solution) and 2 x empty 1L Reagent Container with Fittings (Ref Blank & Res As Solution) |
