测量方法：
EZ4000/5000系列水硬度检测仪分别采用EDTA比色滴定法和光比色滴定法进行水硬度检测；EZ4000/5000系列碱度测定仪采用酸碱滴定法进行总碱度测定。
仪器特点：
EZ4000/5000系列水硬度检测仪/碱度测定仪将在线滴定方面专业知识与一系列独特的分析、控制和通讯功能相结合，分配器、蠕动泵和流路设计精巧，选材优良
● EZ4000/5000系列水硬度检测仪/碱度测定仪采用独特且灵活的滴定方法，满足不同水质硬度检测和总碱度测定的需求
● EZ4000/5000系列水硬度检测仪/碱度测定仪可根据需求选择单参数或者多参数的配置
● EZ4000/5000系列水硬度检测仪/碱度测定仪内置智能自动控制系统，通过工业平板电脑进行控制和通信
● EZ4000/5000系列水硬度检测仪/碱度测定仪拥有带报警功能的标准4 - 20 mA信号输出
● EZ4000/5000系列水硬度检测仪/碱度测定仪支持以太网连接到Modbus TCP / IP的通信
● EZ4000/5000系列水硬度检测仪/碱度测定仪支持多通道分析（最多可选8通道）
测量参数 总硬度，钙硬度，总碱度，游离碱度
测量方法 EZ4000硬度：钙镁指示剂在610 nm 或羟萘酚蓝在620 nm 的EDTA 比色滴定
EZ4000碱度：酸碱滴定法（盐酸）
EZ5000硬度碱度：EDTA 滴定（LED 浸渍探针）
EZ5000碱度：酸碱滴定法
测量范围 EZ4000硬度：
10 - 1000 mg/L CaCO₃ (TH 或 THCa)
0.05 - 10 mg/L CaCO₃ (TH)
EZ4000碱度：
10 - 5000 mg/L CaCO₃
EZ5000硬度碱度：
总硬度: 10 - 1000 mg/L CaCO₃
碱度: 10 - 5000 mg/L CaCO₃
检测限值 EZ4043: ≤ 0.05mg / L（通过LED 浸渍探头）
其它型号：≤ 10mg/L
反应时间 EZ4000（单参数）:10-15分钟、EZ5000（多参数）:20-30分钟；40分
工作温度 10-30° C ± 4° C，
样品温度 10 - 30 ° C
存储温度 仪器: -20 °C 至+55 °C；
电极: -15 °C 至+55 °C
相对湿度 5 % ~ 95 % ( 无冷凝)
电源要求 (110-240 VAC，4A，50/60 Hz；最大功耗：150 VA
输出 4-20 mA，最大500 Ohm 负载，标准1 路，最多8 路（可选）
仪表气源 干燥无油，符合ISA-S7.0.01-1996 仪表气源质量标准
样品流速 100-300ml/min
样品要求 颗粒物最大粒径100μm，<0.1 g / L; 浊度<50 NTU
认证 符合CE / UL 认证标准
外壳防护 分析仪箱体：IP55 ；面板PC： IP65
尺寸 690mmx 465mmx 330mm
重量 25千克
订购指南
EZ4000系列硬度分析仪标准配置货号：
EZ4041.99001102 dd EZ4041, 总硬度 (钙镁试剂EDTA) 标准测量范围：0-1000ppm, 1通道, 1 mA
EZ4043.99001102 dd EZ4043, 总硬度（钙镁试剂/EDT with LED dipping probe, 0.05 - 10 mg/L
EZ4045.99001102 dd EZ4045, THCa (HNB) standard range, 1 str, 1 mA
EZ4000系列碱度分析仪标准配置货号：
EZ4003.99001102 dd EZ4003, free alkalinity standard range, 1 str, 1 mA
EZ4004.99001102 dd EZ4004, total alkalinity standard range, 1 str, 1 mA
EZ5000系列硬度分析仪标准配置货号：
EZ5003.99001102 dd dd EZ5003, TH, free alkalinity standard range, 1 str, 1 mA
EZ5004.99001102 dd dd EZ5004, TH, total alkalinity standard range, 1 str, 1 mA
EZ5005.99001102 dd dd EZ5005, TH, total/free alkal. standard range, 1 str, 1 mA
EZ5006.99001102 dd dd EZ5006, TH, THCa, total/free alkal standard range, 1 str, 1 mA
EZ5000系列碱度分析仪标准配置货号：
EZ5001.99001102 dd dd EZ5001, total+free alkalinity standard range, 1 str, 1 mA
来源:哈希水质网站公开信息
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · HACH-ONLINE Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of HACH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable HACH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · HACH-ONLINE Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of HACH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable HACH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · HACH-ONLINE Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of HACH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable HACH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · HACH-ONLINE Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of HACH-ONLINE.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable HACH-ONLINE for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
