Low-range TOC analyzer
CA78
Precise online TOC monitoring in power plants and semiconductor production
Advantages
Real-time overview of water quality:
The online TOC analyzer provides a fast response time (t90) of 50 seconds. This enables you to react immediately to potential water contamination and effectively protect your product.
The CA78 uses proven UV oxidation and differential conductivity measurement, the most established method for reliable trace TOC analysis in ultrapure water.
The maintenance-friendly design of the analyzer combined with our global service network provides you with comprehensive measuring point support from commissioning through the entire device life cycle.
Perfectly adapted to your process requirements:
Choose between the high-precision 2 μS/cm conductivity version and the robust conductivity version tolerant up to 10 μS/cm. Reduce your investment costs with the optional 3-channel configuration.
Field of application
The total organic carbon (TOC) content has a major influence on the quality of ultrapure water. High TOC concentrations can damage the water purification system or impair the desired water quality. The CA78 online TOC analyzer provides continuous, accurate TOC monitoring, ensuring consistently high quality of the ultrapure water used in production. You retain full control over your product yield and quality.
The CA78 TOC analyzer is ideal for TOC monitoring of ultrapure water in the following industries:
Power & energy
Semiconductor production
Personal care
Disinfectant production
With the following process conditions:
Conductivity: 2 μS/cm (standard), 10 μS/cm (order option)
pH range: neutral
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Technical data
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Source:Endress+Hauserpublic information from the website
Technical Data
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| Measuring Principle | Differential conductivity |
| Characteristic | Total carbon (TOC) analyzer for trace levels |
| Measuring method | TOC determination by UV digestion and measurement of the differential conductivity |
| Size | Housing: 500 x 290 x 200 mm 19.68 x 11.41 x 7.87 in |
| Design | Stainless steel housing; IP 42 (standard), IP54 (optional) |
| Process temperature | < 50 °C (122 °F) |
| Ambient temperature | 10 to 45 °C (50 to 113 °F) |
| Process pressure | max. 0.5 bar (7.25 psi) |
| Sample flow rate | Min. 5 ml/min (0.17 fl.oz/min) |
| Consistency of the sample | max. conductivity 2 μS/cm, optional: max. 10 μS/cm; particle free |
| Specials | UV reactor with continuous function monitoring |
| Application | Determination of total carbon in ultrapure water applications, e.g. in the power or semiconductor industry, that meet the following conditions: Conductivity < 10 μS/cm pH range: neutral |
| Power supply | 100/240 V AC, 47 - 63 Hz |
| Output / communication | 0/4 to 20 mA, galvanically isolated |
| Input | 1 to optional 3 measuring channels Optinonal control input 24 V (for 1 channel instruments) |
| Measuring range | 0.5 to 1 000 μg/l (ppb) |
Case Studies
市政污水处理污水处理厂 · EH-ONLINE应用案例
项目背景
市政污水处理客户在污水处理厂环节，长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移，影响达标排放」的困扰，对EH-ONLINE的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的EH-ONLINE，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应市政污水处理复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
食品饮料食品生产线 · EH-ONLINE应用案例
项目背景
食品饮料客户在食品生产线环节，长期面临「卫生级测量要求高，在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰，对EH-ONLINE的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的EH-ONLINE，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应食品饮料复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
化工制药反应釜与储罐 · EH-ONLINE应用案例
项目背景
化工制药客户在反应釜与储罐环节，长期面临「介质腐蚀性强、工况复杂，仪表需耐腐蚀且防爆」的困扰，对EH-ONLINE的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的EH-ONLINE，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应化工制药复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
电力能源电厂锅炉与汽机 · EH-ONLINE应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节，长期面临「高温高压工况下测量不稳定，维护停机成本高」的困扰，对EH-ONLINE的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的EH-ONLINE，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应电力能源复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
