Process Control Instruments, Field Devices and Industrial Automation
SKU# (332)

ENDRESS+HAUSER  CA72TOC-B1A0B2




ENDRESS+HAUSER CA72TOC-B1A0B2 (1)
  • Overview
  • Benefits
  • Specs
  • Documents

EH TOCII CA72TOC High temperature TOC (total organic carbon) analyzer for online monitoring of industrial wastewater. UV photometric measurement. Thermic catalytic combustion. 0/4-20 mA output and 8 signal inputs. IP54.

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Analyzer for online-determination of TOC in aqueous media using thermic catalytic combustion

Application
  • Industrial wastewater monitoring
  • Control of process wastewater
  • Monitoring of industrial surface water
  • Monitoring of surface water at airports
  • Municipal wastewater monitoring
  • Recording of the carbon load to control the nutrient dosage
Your benefits
  • Optimized for industrial applications with varying pH values and high salt loads
  • Fast and easy maintenance thanks to good accessibility of all components
  • Available measuring ranges inside of 0.25 mg/l to 12,000 mg/l TOC expandable by predilution
  • pH-controlled acid dosage for TIC stripping minimizes acid consumption
  • Measurement proceeds as "Double Batch"
  • One and two-channel measurement available
  • Heatable salt trap significantly increases the service life
  • Exchangeable furnace concept significantly decreases service time thanks to prepared furnace
  • External triggered self testing with TOC standard (e.g. for limit violation)
Measuring principle

The analyzer determines the TOC (total organic carbon) content of an aqueous sample. It uses thermic catalytic combustion with subsequent NDIR (non-dispersive infrared) detection of the produced CO 2 . TOC indicates the total organic load of water. It is used to assess the water quality and can serve as a basis for calculation of wastewater charges.

The analyzer works with two interconnected circuits, a liquid and a gas circuit, to determine TOC by the direct method. In the liquid circuit, the sample is pumped into the analyzer where it can be diluted in case of high salt loads or TOC values. The sample is acidified and the inorganic carbon is eliminated (Stripping). Then the sample is transferred through a rotation slit filter in which the particles are separated according to DIN standards. After that, it is dosed into the furnace.

The sample is combusted at a temperature of 850 C (1550 F). Then, the combustion gas is cooled down and the CO 2 content is determined by the NDIR detector.

The double-batch operation makes sure that the reactor and gas circuit are flushed with CO 2 -free carrier gas and the basic trace is determined while the next sample is prepared in the liquid circuit.

Measuring Principle UV photometric
Characteristic Analyzer for online - determination of TOC in aqueous media using thermic catalytic combustion
Size H: 61.3 inch B: 23.6 inch D: 15.8 inch
Design IP54
Process temperature 32 ... 104F
Ambient temperature 41 ... 95F
Process pressure pressure free
Probe rate 0.32 US gal/hr
Consistency of the probe Aqueous, flammable substances are not allowed in ignitable concentrations - such cases a sample dilution is required
Specials Aqueous, flammable substances are not allowed in ignitable concentrations - such cases a sample dilution is required
Application Industrial wastewater monitoring
Control of process wastewater
Monitoring of industrial surface water
Recording of the carbon load to control the nutrient dosage
Power Supply 115 VAC, 230 VAC, 50/60Hz
Output 0/4 - 20 mA, galvanically separated
Two channel version has an addtional one
RS 232 C, propietary, for data output and remote control (optional)
Input 8 sinal inputs 24 V DC, ative, load max. 500 Ohm
Measurement range 0.25 ... 600 mg TOC/l
1 ... 2400 mg TOC/l
2.5 ... 6000 mg TOC/l
5 ... 12000 mg TOC/l
with the optional pre-dilution the measuring range will expand by the factor of 20
Consumables Stripp reagent, KHP or citric acid standard

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