The uniTOC device uses the full oxidation by UV. The oxidation process can be enhanced with additional dosage of reagent (persulfate). By using the NDIR detector the uniTOC gives precise results in applications of ground water to ultrapure water. The NDIR detector is absolutely selective to carbon dioxide and therefore independent from conductivity and sample temperature. Measuring times are short and the continuous self-cleaning of the reactor avoids any cross-contamination. Since the quality of the stripped gas can be low, the use of pressurised air in combination with our air filters saves money and is optionally available.

 

Technical Specifications:

  • method & detection:

          UV oxidation (full) & NDIR

  • sample volume flow:

          20 mL (low range), 5 mL loop (high range)

  • Total Organic Carbon (TOC) range:

          2 to 5000 ppb (low range), 15 ppb to 20 ppm (high range)

  • related norms:

          USP <643>, EP 2.2.44, DIN EN 1484,

          DIN 32645, 21 CFR part 11, IP 45

 

uniTOC advantages

• NDIR detector / TOC is detected directly over CO2 and not via a 3rd parameter (conductivity). Therefore no limit to conductivity.
• available for two ranges of TOC
• 9 months UV lamp life guarantee / 50% longer life time range than usual
• 2 sample inlets / 2 points of the loop can be measured ,so double efficiency
• Remote service / Instrument can be connected to internet to get service diagnosis

uniTOC advantages

• NDIR detector / TOC is detected directly over CO2 and not via a 3rd parameter (conductivity). Therefore no limit of conductivity.
• available for two ranges of TOC
• 9 months UV lamp life guarantee / 50% longer life time range than usual
• 2 sample inlets / 2 points of the loop can be measured ,so double efficiency
• Remote service / Instrument can be connected to internet to get service diagnosis

Calibration & System Suitability Test (SST)

Calibration and SST of the uniTOC is easy and can be done by the user. Online operation is interrupted briefly for the system checks to be performed. The operator simply has to connect the inlet with the calibration standard solutions and the diluting water sample. The software enables the user to perform calibration and SST independently and the programmable sequence ensures the automatic procedure and data evaluation of the test. The verification of the TOC results according to the requirements of USP and Ph.Eur is realised by the periodic performance of system suitability tests.

Options

pressure regulator for medium

If the feed pressure is higher than 1.5 bar a pressure transducer is required,

offline version

An offline configuration is available for the uniTOC

air filtration unit

to use compressed air instead of oxygen or nitrogen

heat exchanger

keeps the temperature below 50 °C degrees

Click here for more technical information.

 
Technical Specifications 
method & detectionUV oxidation & NDIR (enhanced oxidation; configurable with reagent)
sample volume20 mL loop (low range), 5 mL loop (high range)
period of measurement6 to 15 min
measurement range2 to 5000 ppb (low range), 15 ppb to 20 ppm (high range)
detection accuracy~3 ppb or 2 % (whatever is greater)
ports2 for samples | 1 for reagent
related normsUSP <643>, DIN 32645, EP 2.2.44, DIN EN 1484, CFR 21 part 11, IP 45
ambient parametersrelative humidity: 10 to 95 %, temperature: 10 to 45 °C
interface portsanalog (4 - 20 mA)
dimensions, weight, power400 x 300 x 600 mm, 24 kg, 110 - 230 V, 50 Hz, 70 to 105 Watt
Medium Requirements 
type of sample mediumfrom ground water to ultra pure water
sample temperature10 to 50 °C
inlet pressure< 1.5 bar
compressed gasair, oxygen, nitrogen | free of carbon dioxide
inlet pressure of gasnitrogen: 1 to 1.5 bar | oxygen: 3.5 to 5 bar

 

 

For further informations please check the brochure or CONTACT US!