Monitoring hardness can help optimise processes, protect equipment, and support compliance.
| Flow Rate | 100 - 300 mL/min |
| Drenaj | Atmospheric pressure, vented, min. Ø 32 mm |
| Power | 100 - 240 VAC, 50/60 Hz Max. power consumption: 120 VA |
| Warranty | 24 aylar |
| Malzeme | Hinged part: Thermoform ABS, door: PMMA Wall section: Galvanised steel, powder coated |
| Sample quality | Maximum particle size 100 µm, < 0.1 g/L; Turbidity < 50 NTU |
| Sample temperature | 10 - 30 °C |
| Ambient temperature | 10 - 30 °C ± 4 °C deviation at 5 - 95% relative humidity (non-condensing) |
| Reagent requirement | Keep between 10 - 30 °C |
| Earth connection | Dry and clean earth pole with low impedance (< 1 Ohm) using an earth cable of > 2.5 mm² |
| Part No. | Description | Product description | Parameter | Measuring range | Output |
|---|---|---|---|---|---|
| EZ1016.9800140T | EZ1016sc Total Hardness Colorimetric Analyser, 1 stream, 4x mA Output | EZ1016sc Total Hardness Colorimetric Analyser, 1 stream, 4x mA Output | Hardness, total | No Dilution 0.025 - 0.25 mg/L CaCO₃ 0.025 - 0.5 mg/L CaCO₃ 0.05 - 1 mg/L CaCO₃ Internal Dilution 0.25 - 5 mg/L CaCO₃ 0.5 - 10 mg/L CaCO₃ 1.25 - 25 mg/L CaCO₃ 2.5 - 50 mg/L CaCO₃ 3.75 - 75 mg/L CaCO₃ 5.0 - 100 mg/L CaCO₃ | Optional: Claros Ethernet connection and Modbus TCP/IP Ethernet connector; LAN version; 10/100 Mbps or Profinet or Ethernet IP |
| EZ1017.9800140T | EZ1017sc Calcium Hardness Colorimetric Analyser, 1 stream, 4x mA Output | EZ1017sc Calcium Hardness Colorimetric Analyser, 1 stream, 4x mA Output | Hardness, Calcium | No Dilution 0.005 - 0.25 mg/L CaCO₃ 0.005 - 0.5 mg/L CaCO₃ 0.025 - 1 mg/L CaCO₃ Internal Dilution 0.125 - 5 mg/L CaCO₃ 0.25 - 10 mg/L CaCO₃ 0.625 - 25 mg/L CaCO₃ 1.25 - 50 mg/L CaCO₃ 1.875 - 75 mg/L CaCO₃ 2.5 - 100 mg/L CaCO₃ | Optional: Claros Ethernet connection and Modbus TCP/IP Ethernet connector; LAN version; 10/100 Mbps or Profinet or Ethernet IP |
| EZ4041.XXXXXXXX | EZ4041 Total Hardness Analyser | EZ4041 Total Hardness Analyser | Hardness, total | 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) | |
| EZ4043.XXXXXXXX | EZ4043 Total Hardness Analyser | EZ4043 Total Hardness Analyser | Hardness, total | 0.25 - 10 mg/L CaCO 3 Optional: Internal dispenser dilution (max. factor 100) | |
| EZ4044.XXXXXXXX | EZ4044 Calcium Hardness Analyser | EZ4044 Calcium Hardness Analyser | Calcium Hardness | 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) | |
| EZ5002.XXXXXXXX | EZ5002 Total Hardness Analyser (TH, THCa) | EZ5002 Total Hardness Analyser (TH, THCa) | Hardness, total & Calcium Hardness (THCa) | 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) | |
| EZ5003.XXXXXXXX | EZ5003 Total Hardness + Free Alkalinity Analyser | EZ5003 Total Hardness + Free Alkalinity Analyser | Hardness, total; Alkalinity, free | Total Hardness: 25 - 1000 mg/L CaCO 3 Alkalinity: 100 - 5000 mg/L CaCO 3 Optional: Total Hardness: 10 - 100 mg/L CaCO 3 Alkalinity: 10 - 500 mg/L CaCO 3 Total Hardness: 10 - 250 mg/L CaCO 3 Alkalinity: 25 - 1250 mg/L CaCO 3 Total Hardness: 25 - 500 mg/L CaCO 3 Alkalinity: 50 - 2500 mg/L CaCO 3 | |
| EZ5004.XXXXXXXX | EZ5004 Total Hardness + Total Alkalinity Analyser | EZ5004 Total Hardness + Total Alkalinity Analyser | Hardness, total; Alkalinity, total | Total Hardness: 25 - 1000 mg/L CaCO 3 Alkalinity: 100 - 5000 mg/L CaCO 3 Optional: Total Hardness: 10 - 100 mg/L CaCO 3 Alkalinity: 10 - 500 mg/L CaCO 3 Total Hardness: 10 - 250 mg/L CaCO 3 Alkalinity: 25 - 1250 mg/L CaCO 3 Total Hardness: 25 - 500 mg/L CaCO 3 Alkalinity: 50 - 2500 mg/L CaCO 3 | |
| EZ5005.XXXXXXXX | EZ5005 Total Hardness + Total / Free Alkalinity Analyser | EZ5005 Total Hardness + Total / Free Alkalinity Analyser | Hardness, total; Akalinity, total; Alkalinity, free | Total Hardness: 25 - 1000 mg/L CaCO 3 Alkalinity: 100 - 5000 mg/L CaCO 3 Optional: Total Hardness: 10 - 100 mg/L CaCO 3 Alkalinity: 10 - 500 mg/L CaCO 3 Total Hardness: 10 - 250 mg/L CaCO 3 Alkalinity: 25 - 1250 mg/L CaCO 3 Total Hardness: 25 - 500 mg/L CaCO 3 Alkalinity: 50 - 2500 mg/L CaCO 3 | |
| EZ5006.XXXXXXXX | EZ5006 Total Hardness / Total Calcium Hardness + Total / Free Alkalinity Analyser | EZ5006 Total Hardness / Total Calcium Hardness + Total / Free Alkalinity Analyser | Hardness, total; Calcium Hardness, total; Alkalinity, total; Alkalinity, free | Total Hardness/Total Calcium Hardness: 25 - 1000 mg/L CaCO 3 Total/Free Alkalinity: 100 - 5000 mg/L CaCO 3 Optional: TH/THCa: 10 - 100 mg/L CaCO 3 Total/Free Alkalinity: 10 - 500 mg/L CaCO 3 TH/THCa: 10 - 250 mg/L CaCO 3 Total/Free Alkalinity: 25 - 1250 mg/L CaCO 3 TH/THCa: 25 - 500 mg/L CaCO 3 Total/Free Alkalinity: 50 - 2500 mg/L CaCO 3 | |
| EZ5010.XXXXXXXX | EZ5010 Calcium Hardness + Total Alkalinity Analyser | EZ5010 Calcium Hardness + Total Alkalinity Analyser | Calcium Hardness; Alkalinity, total | Calcium Hardness: 10 - 100 mg/L CaCO₃; Total Alkalinity: 20 - 500 mg/L CaCO₃ | |
| EZ5011.XXXXXXXX | EZ5011 Total Hardness + Total Alkalinity Analyser | EZ5011 Total Hardness + Total Alkalinity Analyser | Hardness, total; Alkalinity, total | Total Hardness: 25 - 1000 mg/L CaCO 3 Alkalinity: 40 - 1000 mg/L CaCO 3 Optional: Total Hardness: 10 - 250 mg/L CaCO 3 Alkalinity: 10 - 250 mg/L CaCO 3 Total Hardness: 25 - 500 mg/L CaCO 3 Alkalinity: 20 - 500 mg/L CaCO 3 |
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Monitoring hardness can help optimise processes, protect equipment, and support compliance. The Hach EZ Series Hardness Analysers provide a range of online analysers that use colorimetric or titrimetric methods to deliver online hardness results.
Colorimetric methods are suited for routine online monitoring of drinking water and surface water applications. Titrimetric methods are suited for demanding applications requiring measurement across broader concentration ranges or more complex matrices, such as wastewater and power generation.
Across these applications, the Hach EZ Series helps you select the right method for your monitoring needs. With options for total hardness, calcium hardness, and alkalinity, the EZ Series delivers reliable online results tailored to your water quality requirements.
Which Analyser Should I Choose?
• For Straightforward Colorimetric Monitoring Choose the EZ1016sc Total Hardness Colorimetric Analyser (0.025 - 1,000 mg/L CaCO₃) and the EZ1017sc Calcium Hardness Colorimetric Analyser (0.005 - 1,000 mg/L CaCO₃) for standard drinking water, ultrapure water, and surface water applications. They use colorimetric analysis to deliver consistent results, providing real-time data to help you make faster decisions and protect your infrastructure without requiring complex maintenance.
• For Precise Single-Parameter Titration Choose the EZ4000 Series Online Volumetric Hardness Analyser (total hardness: 0.025 - 1,000 mg/L CaCO₃; calcium hardness: 0.005 - 1,000 mg/L CaCO₃) for wastewater, ultrapure water, and industrial power applications that require dedicated measurement of a single parameter over a wide range. Using a robust Calmagite and EDTA method, this series delivers online automatic titration of total hardness or calcium hardness in water, ensuring your critical operations remain stable and compliant.
• For Comprehensive Multi-Parameter Management Choose the EZ5000 Series (total hardness: 0.025 - 1,000 mg/L CaCO₃; calcium hardness: 0.005 - 1,000 mg/L CaCO₃; alkalinity: 100 - 5,000 mg/L CaCO₃) for complex power generation, cooling water, and advanced wastewater treatment facilities. These multi-parameter analysers perform online automatic titration of hardness and alkalinity in water, making them ideal when you need to track several critical parameters at once. By combining a hardness and an alkalinity measurement into one powerful system using online titration, this series helps you maximize operational efficiency and control costs effectively.
Use the filters in the table below to find your online Hardness Analyser. Need support or a different configuration? Please contact us.
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