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Online, automatic titration of Alkalinity in water monitoring applications
State of the art titration platform
The EZ4000 Series Analyzers are single-parameter titrators built on an industrial analytical platform. High precision dispensers, robust peristaltic pumps and carefully designed liquid pathways all add up to the highest performance for industrial and environmental analysis needs.
Unique flexibility in titration methods
Every application starts with the basics: the right titrimetric technique for the parameter of interest, the measuring range and the water matrix. Depending on the change in the specific variables, the EZ4000 Series run either acid-base, redox, precipitation or photocolorimetric titration allowing for a unique flexibility.
The EZ4003 Free Alkalinity Analyzers use acid-base titration. They combine an unparalleled expertise in online titration with a set of unique analysis, control and communication features in a compact footprint:
– Wide standard range of 100-2500 mg/L CaCO3
– Smart automatic features
– Control and communication via industrial panel PC
– Analogue and digital output options
– Multiple stream analysis (up to 8 streams)
There are many additional options available. Please contact Hach for more details.
| Alarm | 1x malfunctioning, 4x 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 | Automatic, 2-point; frequency freely programmable |
| 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. |
| 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 hydrochloric acid |
| Method Name | Titrimetric |
| Number of sample streams | 1, 2, 4 or 8 |
| Parameter | Alkalinity, free |
| Power | 100 – 240 VAC, 50/60 Hz
Max. power consumption: 120 VA |
| 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 CaCO3
Optional: |
| Range | 100 – 5000 mg/L CaCO₃ |
| 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.) |
