TOC, BOD, COD analyzers
TOC Analyzer
Measuring TOC continuously online is the perfect solution
for monitoring contamination and discharges. The TOC
Analyzer measures total organic carbon in liquid samples
using the method of UV persulfate oxidation with
subsequent carbon dioxide detection by nondispersive
infrared absorption (NDIR). The analyzer can measure TOC
in liquid samples ranging from 0–5 mg/L to 20,000 mg/L.
The method conforms to EPA, DIN, CE, ASTM, and NAMUR
regulations as well as meeting the requirements of ISO and
EN directives
Analyte: Total Organic Carbon (TOC), Total Carbon (TC)
Method: For TOC measurements, inorganic carbon is removed by acidification and sparging;
this is followed by UV‐promoted persulfate oxidation. This process oxidizes the total
organic carbon into carbon dioxide which is measured in a nondispersive infrared
(NDIR) analyzer. For TC measurements, the sparging step is omitted
Range: 0–5 mg/L to 20,000 mg/L
Measurement type: Continuous
Lower determination limit: 0.2 mg/L (for range 0‐5 mg/L using nitrogen as carrier gas)
Accuracy: ± 2% of full scale non-diluted, ± 4% of full-scale diluted ranges
Response time: >6 min
User interface: Colour Touchscreen
Data logger: Integrated
Size: 760 × 600 × 210 mm / 29.9 x 23.6 x 8.3 in
Weight: 37 kg
Carrier gas: Air purifier integrated, supplied by an internal compressor. N2 or CO2 free air supply can be used
Reagents: Phosphoric acid and sodium persulfate
Analog outputs: 2 × 4–20 mA outputs for measured data
Alarms: 2 SPDT contacts
Protection class: IP54 ‐ NEMA 3
Auto-clean, auto-calibration, auto-validate functions available as options
