测量方法：
EZ7200在线挥发性脂肪酸（VFA）分析仪采用酸碱滴定法。
测量参数：
EZ7200在线挥发性脂肪酸（VFA）分析仪可测量挥发性脂肪酸（VFAs）、碳酸氢盐、总碱度、部分碱度。
仪器特点：
1）EZ7200挥发性脂肪酸分析仪采用酸碱滴定法，直接滴定，挥发量最小
2）连续监测厌氧过程，防止因VFA累积而导致消化池故障
3）易于实施的动态控制策略，配合在线监测，挥发性脂肪酸分析仪保障工艺厌氧过程
4）EZ7200在线VFA监测仪可轻松集成到公司网络，操作简便
5）EZ7200在线VFA监测仪可实现多流路分析（最多8通道）
测量参数 挥发性脂肪酸（VFAs）、碳酸氢盐、总碱度、部分碱度
测量方法 酸碱滴定法
测量范围 VFA：10-10,000 mg/L 以醋酸计
碳酸氢盐：0-100meq/L 或10,000mg/L 的CaCO3
总碱度和部分碱度：0-100 meq/L 或10,000 mg/L CaCO3
检测限值 ≤ 10 mg/L ( 范围 10 - 500 mg/L VFA)
准确度 ≤3% F.S.（使用标准溶液）
测量间隔 10-15 分钟
验证 自动验证，频率可设置
校准 自动校准，频率可设置
环境温度 10℃ - 30℃±4℃，相对湿度：5%-95%（非冷凝）
试剂要求 10 - 30 ℃之间保存
样品流速 100-300ml/min
样品温度 10℃ - 30℃
仪表空气 根据ISA-S7.0.01-1996 仪表空气质量标准，要求无油干燥
电源要求 110 - 240 VAC，4 A，50/60 Hz，最大功耗：150VA
模拟输出 4-20 mA，最大500 欧姆负载，标配1 路模拟输出，最多8 路（可选）
数字输出 可选：RS232、Modbus（TCP/IP、RS485）
样品要求 最大粒径500μm，<0.1 g/L
认证 符合CE / UL 认证
外壳防护 分析仪主机：IP55;
PC面板：IP65
尺寸 690mmx 465mmx 330mm
装运重量 25kg
订购信息
EZ7200.99001102 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：10-500ppm VFA, 1通道, 1路0/4-20mA输出
EZ7201.99001102 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：20-1000ppm VFA, 1通道, 1路0/4-20mA输出
EZ7202.99001102 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：100-5000ppm VFA, 1通道, 1路0/4-20mA输出
EZ7203.99001102 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：5000-10000ppm VFA, 1通道, 1路0/4-20mA输出
EZ7250.99001002 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：10-500 ppm VFA, 1-50 meq bicarb/alk, 1通道, 1路0/4-20mA输出
EZ7251.99001002 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：20-1000 ppm VFA, 1-50 meq bicarb/alk, 1通道, 1路0/4-20mA输出
EZ7252.99001002 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：100-5000 ppm VFA, 5-100 meq bicarb/alk, 1通道, 1路0/4-20mA输出
EZ7253.99001002 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：500-10000 ppm VFA, 5-100 meq bicarb/alk, 1通道, 1路0/4-20mA输出
EZ7254.99001002 EZ7200 挥发性脂肪酸（VFA)分析仪, 标准测量范围：100-5000 ppm VFA, 5-500 meq bicarb/alk, 1通道, 1路0/4-20mA输出
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.
