TOC
Applications
- Drinking water
- Industrial waste water
- Municipal waste water
- Surface water

Description
Total Organic Carbon analyzer based on UV/persulfate method.
Method
The total organic carbon measurement is based on the UV/persulfate method. The sample is acidified and stripped with air to remove inorganic carbon. Sodium persulfate is added and the sample is processed in two UV reactors. In the reactors the organic species present in the sample are completely oxidized to CO2. The resulting carbon dioxide is then measured by a NDIR detector and the TOC concentration is measured.
Reagents
Standard solutions
- TOC standard solution 2500 ppm, 1 L
- Toc standard solution 1000 ppm 1l
- Certified toc standard solution 1000 ppm 1l
- Toc standard solution 5000 ppm 1l
- Certified toc standard solution 5000 ppm 1l
- Toc standard solution 10000 ppm 1l
- Certified toc standard solution 10000 ppm 1l
- TOC standard solution kit (predosed powder), 1000 ppm, 1 L
- TOC standard solution kit (predosed powder), 5000 ppm, 1 L
Features
Range (with dilution) |
20000 mg/l |
Reproducibility | ±2 % FS |
Reproducibility (with dilution) | ±4 % FS |
Number of reagents | 2 |
Technical Specifications
Model | TM |
Sampling Mode | Continuous. |
Sample | Pressure: Atmospheric Temperature: 2 - 70 °C (36 - 158 °F) Flow Rate: 80 to 500 mL/min Connection: 6 mm (¼-in.) |
Drain |
Pressure-free drain Connection: 12 mm (½-in.) |
Input Streams | 2 |
Cabinet Material | Epoxy-coated stainless steel AISI 304 |
Dimensions (H x W x D) | 760 x 600 x 210 mm (29.6 x 23.4 x 8.2 in) |
Weight | 37 kg (81 lbs) |
Power Supply |
Input Voltage:115 - 240 VAC 50/60 Hz Power consumption: max. 350 W |
Output signals |
2 x 4-20 mA analog outputs Modbus RTU via RS485 |
Alarms | 2 SPDT programmable voltage-free relays |
Digital Input | Online |
Ambient Temperature | 5 - 45 °C (41 - 113 °F) |
Ambient Humidity | 10 to 90 % RH (indoor use only, outdoor installation possible with protective cabinet or shelter not included) |
Protection Grade | IP54 |
Documentation
- 🇺🇸 / 🇬🇧 Brochure 3S-TOCmeter
- 🇮🇹 Brochure 3S-TM ITA
- 🇫🇷 3S-TM-2.01 – Manuel Utilisateur
- 🇩🇪 3S-TM-2.01 – Betriebsanleitung
- 🇺🇸 / 🇬🇧 3S-TM-2.01 – User Manual
- 🇮🇹 3S-TM-2.01 – Manuale Utente
Related Accessories
- External compressed air purifier for CO2 free air for TOC analyzers
- SS external reservoir with level switch for dilution water
- Fast Loop external reservoir with level switch - polycarbonate
- SS External reservoir with level switch for sample
- Epoxy-coated steel stand for TOC analyzer
- Filtration unit 100 micron 230 VAC
- SS stand for TOC analyzer + cabinet for the chemicals