测量方法
1. 水样进入反应器中与酸反应，此时水样中的无机碳转换成二氧化碳；
2. 利用不含二氧化碳的空气（纯氧）作为载气，将无机碳转换成的二氧化碳排出，此时通过NDIR检测器进行检测可测得总无机碳（TIC）；
3. 再将去除TIC(总无机碳)的水样进行氧化；
4. 氧化完成后，再通过载气将有机碳转换成的二氧化碳排出并通过NDIR检测器检测得到总有机碳（TOC）含量。
仪器特点
● 采用UV过硫酸盐和羟基自由基相结合的氧化方法，氧化效率更高，在低浓度时也具有较高的准确度
● 采用4mm内径的进样管路，可通过内径达2mm的软颗粒，自带流通池，常规样品无需过滤处理
● 两点自动校准功能减少操作人员的额外维护量，序批式测量减少试剂的消耗。
● 分析过程不使用碱性试剂，有效的降低了操作人员制备药剂的难度且排除因二氧化碳溶入碱性试剂造成的测量干扰
● 低维护量，低维护费用
● 友好的人机界面：配备高清触摸屏，具有人性化的操作界面和仪表接口，可快速便捷进行数据下载和软件更新，多级管理模式方便用户对仪表进行管理
技术指标
测量参数 TOC (NPOC)/TIC
氧化方法 UV过硫酸盐和羟基自由基相结合的氧化方法
测量方法 水样经氧化后，用NDIR检测器进行二氧化碳浓度检测
测量范围 0-10 mg/L
最低检出限 0.05 mg/L
重复性 读数的±2%或±0.05 mg/L(取其大者）
准确度 读数的±3%或±0.05 mg/L(取其大者）
零点漂移 ±2%f.s./天以内
量程漂移 ±2%f.s./天以内
分析时间 7分钟 (TOC)
测量间隔 可调（以分钟计）
干扰 可能存在的浊度、脂肪、油、蛋白质、焦油会干扰测量结果
进样要求 流量：≥100 mL/min
颗粒粒径：≤2 mm，软颗粒
进样压力：≤1 bar
载气（氧气） 制氧机：电源电压与频率：220V AC/50Hz (±10%)
氧气浓度：＞92%
压力：＞0.05 Mpa
氧气消耗流量：最大1.7L/min
水样温度 5℃– 45℃
维护周期 每3个月一次
防护等级 IP44
信号输出 0/4~20 mA, Modbus/RTU RS485
继电器输出 4个继电器（24v 2A，干接点)
显示屏 7英寸, 800 × 480像素(4:3) TFT-LCD 触摸屏
数据储存 9999个分析数据，99个故障信息
电源 100 – 240 V AC, 50/60Hz
尺寸 1100 x 560 x 370 mm
重量 65 Kg
订货信息
主机
8653100 QL3580M 在线总有机碳分析仪
配件
8663500 制氧机
其他备件和年维护包
8651700 QL3580M 年维护包
8651000 NDIR二氧化碳检测器 343
9789600 循环泵专用管材包
8654000 蠕动泵管材包
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.
