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.
Calibration & System Suitability Test (SST)
Pressure regulator for medium
If the feed pressure is higher than 1.5 bar a pressure transducer is required
An offline configuration is available for the uniTOC.
Air filtration unit
To use compressed air instead of oxygen or nitrogen.
Keeps the temperature below 50 °C degrees
|1||Method & detection||UV oxidation & NDIR (enhanced oxidation; configurable with reagent)|
|2||Sample volume||20 mL loop (low range), 5 mL loop (high range)|
|3||Period of measurement||6 to 15 min|
|4||Measurement range||2 to 5000 ppb (low range), 15 ppb to 20 ppm (high range)|
|5||Detection accuracy||~3 ppb or 2 % (whatever is greater)|
|6||Ports||2 for samples | 1 for reagent|
|7||Related norms||USP <643>, DIN 32645, EP 2.2.44, DIN EN 1484, CFR 21 part 11, IP 45|
|8||Ambient parameters||Relative humidity: 10 to 95 %, temperature: 10 to 45 °C|
|9||Interface ports||analog (4 - 20 mA)|
|9||Dimensions, weight, power||400 x 300 x 600 mm, 24 kg, 110 - 230 V, 50 Hz, 70 to 105 Watt|
|1||Type of sample medium||From ground water to ultra pure water|
|2||Sample temperature||10 to 50 °C|
|3||Inlet pressure||< 1.5 bar|
|4||Compressed gas||air, oxygen, nitrogen | free of carbon dioxide|
|5||Inlet pressure of gas||Nitrogen: 1 to 1.5 bar | oxygen: 3.5 to 5 bar|