Hach, EZ4044.XXXXXXXX, EZ4044 Calcium Hardness Analyzer
Catalog Number: EZ4044.XXXXXXXX
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| Alarm | 1x malfunctioning, 4x user-configurable, max. 24 VDC/0.5 A, potential free contacts |
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| 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 | Some metal ions interfere by causing fading or indistinct end points or by stoichiometric consumption of EDTA. Suspended or colloidal organic matter also may interfere with the end point. Large amounts of color and turbidity interfere. Fats, oil, proteins, surfactants and tar. |
Unless otherwise stated, the minimum order amount is USD 1,000.
For orders below USD 1,000, an additional handling fee may apply, or we may arrange local delivery / local handover where available.
All quotations are subject to final confirmation, including product availability, lead time, batch information, shipping cost, and applicable export or handling requirements.
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| Lower Limit of Detection (LOD) | ≤ 10 mg/L |
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| Material | Hinged part: Thermoform ABS, door: PMMA Wall section: Galvanized steel, powder coated |
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| Measurement Method | Colorimetric titration by EDTA using color indicator hydroxynaphthol blue at 620 nm |
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| Method Name | Titrimetric |
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| Model | EZ4044 |
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| Number of sample streams | 1, 2, 4 or 8 |
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| Parameter | Calcium Hardness |
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| Power | 100 - 240 VAC, 50/60 Hz Max. power consumption: 120 VA |
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| Precision | Better than 2% full scale range for standard test solutions |
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| Protection Class | Protection class: Analyser cabinet: IP44 / Panel PC: IP65 |
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| Range | 100 - 1000 mg/L CaCO 3 Optional: 10 - 100 mg/L CaCO 3 25 - 250 mg/L CaCO 3 50- 500 mg/L CaCO 3 Internal dispenser dilution (max. factor 100) |
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| Range | 100 - 1000 mg/L CaCO₃ |
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| Reagent Requirements | Keep between 10 - 30 °C (50 - 86 °F) |
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| Sample Flow Rate | 100 - 300 mL/min |
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| Sample Pressure | By external overflow vessel |
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| Sample Quality | Maximum particle size 100 µm, < 0.1 g/L; Turbidity < 50 NTU |
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| Sample Temperature | 10 - 30 °C (50 - 86 °F) |
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| Validation | Automatic; frequency freely programmable |
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| Warranty | 12 months |
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| Weight | 25 kg (55 lbs.) |
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| What's included? | EZ4044 Calcium Hardness Analyzer, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 2 x empty 2.5L Reagent Containers with Fittings (for Colour & Acid Solution), 1 x empty 5L Reagent Container with Fittings (for Buffer Solution) and 1 x empty 10L Reagent Container with Fittings (for EDTA Solution) |
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