-
Products
- Lab Instruments
-
Lab Meters and Probes
- Chemistries, Reagents, and Standards
-
Online Analyzers
Ammonium Analysers Ammonia Monochloramine Analyzers Chlorine Analyzers
- CL17sc
- CL10sc Amperometric
- Ultra Low Range CL17sc Colorimetric Chlorine Analyser
- RMC Disinfection Panel
EZ Series Analysers- Iron
- Aluminium
- Manganese
- Phosphate
- Chloride
- Cyanide
- Fluoride
- Sulphate
- Sulphide
- Arsenic
- Chromium
- Copper
- Nickel
- Zinc
- Ammonium
- Total Nitrogen
- COD
- Phenol
- Volatile Fatty Acids
- Alkalinity
- ATP
- Hardness
- Toxicity
- Sample Preconditioning
- Boron
- Colour
- Nitrate
- Nitrite
- Silica
- Hydrogen Peroxide
- EZ Series Reagents
- EZ Series Accessories
- EZ sc Series Additional Analyzers
- EZ sc Series Inorganics
- EZ sc Series Metals
- EZ sc Series Nutrients
- Flow and Collections
-
Online Sensors and Controllers
Digital Controllers (Transmitters) Ammonium SensorspH & ORP Sensors
- 12mm pH/ORP
- 8362 sc High Purity
- Combination pH/ORP
- Differential pH
- Digital Differential ORP
- Digital Differential pH
- LCP ORP
- LCP pH
Conductivity Sensors- 3400 Analogue Contacting
- 3400 Digital Contacting
- 3700 Analogue Inductive
- 3700 Digital Inductive
- 9523 Cation Conductivity
- Samplers
- Claros Water Intelligence System
- Test Kits & Strips
-
Microbiology
Accessories and Chemicals Dehydrated MediaLabware
- Accessories
- Funnels, Pumps & Manifolds
- Microbiology Filters
- Petri Dishes & Accessories
- Sampling Bags
- Vials, Tubes, Bottles & Racks
-
Lab Equipment and Supply
Apparatus
- Brushes
- Clamps, Rings & Stands
- Crucibles
- Crucibles & Casseroles
- Dispensers & Droppers
- Grab Samplers
- Hotplates and Stirrers
- Oil and Grease
- Other Apparatus
- Pipet Aids
- Pipettes
- Racks
- Stir Bars
- Tubing
- Weighing Accessories
General Lab Consumables Glassware/PlasticwareInstruments Safety Equipment - Industrial UV
- Electrochemistry
- Parameters
- Industries
- Support
- Service
- e-Shop
- Brands
Hach New Zealand
Choose your country or region:
Europe
Americas
Asia - Australasia
- Australia
- Mainland China
- India
- Indonesia
- Japan
- Malaysia
- New Zealand
- Philippines
- Singapore
- South Korea
- Thailand (Thai)
- Taiwan
- Vietnam
Middle East - Africa
Prices Online Include GST 0800 50 55 66
Recurring Orders 
Online Analyzers: EZ Series Analysers
EZ Series Hardness Analysers
EZ Series Hardness Analysers
- Overview
- Downloads
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.
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.
|
NZD Price (Incl. GST)
|
|||||
|---|---|---|---|---|---|
| EZ1016.9700140T | 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 | Contact Hach |
| EZ1017.9700140T | 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 Interal 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 | Contact Hach |
| EZ4041.XXXXXXXX | EZ4041 Total Hardness Analyser | Hardness, total | 100 - 1000 mg/L CaCO3 Optional: 10 - 100 mg/L CaCO3 25 - 250 mg/L CaCO3 50- 500 mg/L CaCO3 Internal dispenser dilution (max. factor 100) |
Contact Hach | |
| EZ4043.XXXXXXXX | EZ4043 Total Hardness Analyser | Hardness, total | 0.25 - 10 mg/L CaCO3 Optional: Internal dispenser dilution (max. factor 100) |
Contact Hach | |
| EZ4044.XXXXXXXX | EZ4044 Calcium Hardness Analyser | Calcium Hardness | 100 - 1000 mg/L CaCO3 Optional: 10 - 100 mg/L CaCO3 25 - 250 mg/L CaCO3 50- 500 mg/L CaCO3 Internal dispenser dilution (max. factor 100) |
Contact Hach | |
| EZ5002.XXXXXXXX | EZ5002 Total Hardness Analyser (TH, THCa) | Hardness, total & Calcium Hardness (THCa) | 100 - 1000 mg/L CaCO3 Optional: 10 - 100 mg/L CaCO3 25 - 250 mg/L CaCO3 50 - 500 mg/L CaCO3 Internal dispenser dilution (max. factor 100) |
Contact Hach | |
| EZ5003.XXXXXXXX | EZ5003 Total Hardness + Free Alkalinity Analyser | Hardness, total; Alkalinity, free | Total Hardness: 25 - 1000 mg/L CaCO3 Alkalinity: 100 - 5000 mg/L CaCO3 Optional: Total Hardness: 10 - 100 mg/L CaCO3 Alkalinity: 10 - 500 mg/L CaCO3 Total Hardness: 10 - 250 mg/L CaCO3 Alkalinity: 25 - 1250 mg/L CaCO3 Total Hardness: 25 - 500 mg/L CaCO3 Alkalinity: 50 - 2500 mg/L CaCO3 |
Contact Hach | |
| EZ5004.XXXXXXXX | EZ5004 Total Hardness + Total Alkalinity Analyser | Hardness, total; Alkalinity, total | Total Hardness: 25 - 1000 mg/L CaCO3 Alkalinity: 100 - 5000 mg/L CaCO3 Optional: Total Hardness: 10 - 100 mg/L CaCO3 Alkalinity: 10 - 500 mg/L CaCO3 Total Hardness: 10 - 250 mg/L CaCO3 Alkalinity: 25 - 1250 mg/L CaCO3 Total Hardness: 25 - 500 mg/L CaCO3 Alkalinity: 50 - 2500 mg/L CaCO3 |
Contact Hach | |
| EZ5005.XXXXXXXX | EZ5005 Total Hardness + Total / Free Alkalinity Analyser | Hardness, total; Akalinity, total; Alkalinity, free | Total Hardness: 25 - 1000 mg/L CaCO3 Alkalinity: 100 - 5000 mg/L CaCO3 Optional: Total Hardness: 10 - 100 mg/L CaCO3 Alkalinity: 10 - 500 mg/L CaCO3 Total Hardness: 10 - 250 mg/L CaCO3 Alkalinity: 25 - 1250 mg/L CaCO3 Total Hardness: 25 - 500 mg/L CaCO3 Alkalinity: 50 - 2500 mg/L CaCO3 |
Contact Hach | |
| EZ5006.XXXXXXXX | 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 CaCO3 Total/Free Alkalinity: 100 - 5000 mg/L CaCO3 Optional: TH/THCa: 10 - 100 mg/L CaCO3 Total/Free Alkalinity: 10 - 500 mg/L CaCO3 TH/THCa: 10 - 250 mg/L CaCO3 Total/Free Alkalinity: 25 - 1250 mg/L CaCO3 TH/THCa: 25 - 500 mg/L CaCO3 Total/Free Alkalinity: 50 - 2500 mg/L CaCO3 |
Contact Hach |
You cannot compare more than 4 products at once.
You must select at least 2 products to compare.