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Online automatic titration of Ammonium in water
EZ4000 Series Analyzers are single-parameter titrators that achieve excellent precision and accuracy. Depending on the parameter of interest, the measuring range and the water matrix the EZ4000 Series may use either potentiometry i.e. acid-base, redox or precipitation titration, where the endpoint is determined by a change in a specific variable, or photocolorimetry, where color change is used to determine the endpoint of the titration. The high precision dispenser for addition, robust peristaltic pumps for sampling and drain, and carefully designed liquid pathways all add up to the highest performance for industrial and environmental analysis needs.
Results you can rely on
Smart automatic features for validation, priming and cleaning are embedded in the controller software and contribute to analytical performance, maximized uptime and negligible operator invervention. Sample lines and analysis vessel are cleaned with demineralized water to eliminate cross contamination between samples. Electronic and wet-chemical part of the analyzer are strictly separated. A transparent door allows for instant visual inspection of the wet part.
Flexibility that meets your needs
EZ Series Ammonium Analyzers come in an attractive, ergonomic mainframe with a compact footprint. All hardware is controlled by the integrated industrial panel PC. The modular build allows for the analyzer to match your application and operational needs.
• The standard measuring range can be narrowed by a different calibration range or extended via internal dilution options.
• Analog and digital output options
• Multiple stream analysis for up to 8 sample streams
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 (50 – 86 °F ± 7.2 °F deviation) at 5 – 95% relative humidity (non-condensing) |
| Analog Outputs | Active 4 – 20 mA max. 500 Ohm load, standard 1, max. 8 (option) |
| Calibration | N.A. |
| Certifications | CE compliant / UL certified |
| Cycle Time | 10 – 15 minutes |
| Demineralized Water | For rinsing / dilution |
| 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 | Soaps, oily matter, suspended solids or precipitates may coat the glass electrode and cause a sluggish response. Allow additional time between titrant additions to let the electrode come to equilibrium or clean the electrodes occasionally. Alkaline compounds may interfere with the titration. |
| Lower Limit of Detection (LOD) | ≤ 10 mg/L |
| Material | Hinged part: Thermoform ABS, door: PMMA Wall section: Galvanized steel, powder coated |
| Measurement Method | Acid-base titration with sulphuric acid, conform with standard method APHA 4500-NH3 |
| Model | EZ4005 |
| Number of sample streams | 1, 2, 4 or 8 |
| Parameter | Ammonium |
| Power | 100 – 240 VAC, 50/60 Hz Max. power consumption: 120 VA |
| Power Supply | 100 – 240 VAC, 50/60 Hz |
| Precision | Better than 2% full scale range for standard test solutions |
| Protection Class | Protection class: Analyser cabinet: IP44 / Panel PC: IP65 |
| Range | 100 – 5000 mg/L NH₄
Optional: |
| Range | 100 – 5000 mg/L NH₄ |
| 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? | EZ4005 Ammonium Analyzer, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 1 x pH Electrode, Routine S7 Connection, 1 x empty 5L Reagent Container with Fittings (for H₂SO₄ Solution) and 1 x empty 10L Reagent Container with Fittings (for NaOH Solution) |
