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Automatic on-line analysers UV lamp How cell Reference ► Control with touchscreen display ► "Long life" UV lamp - 10 years ► Internal data logger with data download via UV lamp Row cell Referena Excitation filter Emission filter Photomultiplier UV-VIS lamp How cell pholodelector ► No reagent (except for NaOH ► Built-in automatic washing ► Extremely fast response time ► The running costs are very low measurement principle does not ► Extremely simple hydraulic system with pipes with large ► The automatic cleaning system keeps the measuring cell clean for long periods with no need for...

The measuring principle is based on the intense UV absorption of the organic molecules at 254 nm in accordance with the Beer-Lambert law: ⎛ Iin ⎞ [ C ] = k • log⎜— ⎜ — ⎝ Iout ⎠ [C]: concentration of the sample k: extinction coefficient Iin: intensity of light input sample Iout: intensity of light output sample Turbidity, organic substances, suspended solids or dirt in the measuring cell are compensated for automatically by means of a differential measurement with a second detector at a different wavelength. Complies with AFNOR X PT 90- 210 – DIN38404-C3 standards. Applications 4Monitoring...

On-line nitrate analysers Analysers The measuring principle is based on the intense UV absorption of the NO chromophore at 210-220 nm according to the Beer-Lambert law: ⎛ Iin ⎞ [ C ] = k • log⎜— ⎜ — ⎝ Iout ⎠ [C]: concentration of the sample k: extinction coefficient Iin: intensity of light input sample Iout: intensity of light output sample Automatic linearization stored in the analyzer is used to compensate the nonlinearity of the Beer-Lambert law for high concentrations.The measurement is the weighted sum of the concentrations of NO2 and NO3, although, in most applications, the...

The measuring principle is based on the UV absorption of ammonia in the NH3 gas phase. The addition of a small amount of sodium hydroxide (NaOH) to the sample allows the almost complete passage (stripping) of the ammonium ion NH4+ to the NH3 gaseous form. An FFT (Fast Fourier Transform) algorithm is applied to the spectrometer to extract the absorption signal typical of ammonia gas. This method is very selective as no interferent is entrained for determination on surface water or waste water. Turbidity or the colour of the sample do not influence the measurement, as the determination is...

On-line analyser for hydrocarbons in water Excitation filter Emission filter Photomultiplier UV-VISIamp Flow cell photodetector a high sensitivity photomultiplier, even very low concentrations (of be determined. The table shows the relative intensity measurements of certain aromatic hydrocarbons: water (BTEX, PAH, phenol, oil, Technical data

Measuring T.O.C. - Total Organic Carbon Measuring principle The analyser measures total organic carbon (TOC) using a method which oxidises the aqueous sample in the presence of sodium persulfate and UV irradiation and then measures the carbon dioxide produced using a non-dispersive infrared (NDIR) analyser. The method has been approved by the US Environmental Protection Agency (EPA) and complies with ISO/CEN European guidelines. The analyser is able to take this type of measurement from aqueous samples in a field that ranges from 0 - 5 mg/l up to a maximum of 10,000 mg/l (others on...

TOCMETER Analysers The “TOC Meter” analyser takes continuous measurements of the total organic carbon by means of oxidation with sodium persulfate and UV irradiation, after removal of inorganic carbon by means of acidification with phosphoric acid (EPA Method 415.1, in accordance with EN 1484, ISO 8245). CO2 is measured by means of a built-in high stability NDIR. Characteristics 4TOC analysis with high accuracy and repeatability. 4High stability NDIR sensor. 4Internal system for generating and purifying the carrier gas. No additional cylinders or air treatment systems required. 4Intuitive...

The “COMPAC TOC” analyser takes batch measurements of the total organic carbon by means of oxidation with sodium persulfate and UV irradiation, after removal of inorganic carbon by means of acidification with phosphoric acid (EPA 415.1 method, in accordance with EN 1484, ISO 8245). CO2 is measured by means of a built-in high stability NDIR. Characteristics 4TOC analysis with high accuracy and repeatability. High stability NDIR sensor with no moving parts. 4Sampling method: discontinuous at settable frequency. 4The only analyser that can be powered at low voltage (12 VDC - Compactoc-LV...

Color meter on-line colorimetric determination General characteristics ► Intuitive touchscreen user colorimetric cell (approx. 35 validation / cleaning ► Built-in peristaltic pump for sample collection ► Sample recirculation barrel with level contact ► Dedicated drainage for samples containing analysis reagents ► Sampling method: discontinuous with settable Developed and manufactured for the industrial environment and on-line environmental applications, it is characterised by high levels of robustness of the electronic, mechanical and hydraulic components. The analyser is delivered after a...

Analysers 4Complete separation of the electronic part from the hydraulic part. Technical data Measuring principle Colorimetric analysis Measuring range in relation to the analytical method used Analysis time Analysis frequency Maximum error 2% of the measurement range full scale Thermostat control Reagents / cleaning solution in relation to the analytical method used Analogue outputs 2 relays (settable as threshold, fault…) Optional, depending on the sample matrix Ambient temperature Sample temperature Data logger Built-in (optional) Power supply Running costs Extremely limited Installation...

Filtration system for analysers The SF-100 filtration system, often used upstream of online analysis systems, is a self-cleaning filter that uses compressed air with a programmable frequency to keep the stainless steel filter element clean. While most of the liquid in analysis passes very quickly passes through the polypropylene body of the filter, only the amount necessary for the analyser is filtered through the stainless steel filter element with a special profile. This prevents a rapid accumulation of dirt and deposits on the filter element. In addition to this, the filtration system...