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COMPOSER Carl Czerny - SEIBOLD Online-Analyser for Lead
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- Properties and typical applications
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Bild vergrößern
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- Toxicology
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- Method
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- Application information
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- Technical information
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- Downloads
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- Carl Czerny
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Properties and typical application
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Native lead (Pb) is a soft, lustrous, bluish-white metal and rarely found in
nature. Usually lead can be found in ore together with zinc, silver and copper.
Lead is primarily used for the production of lead-acid batteries, solder and
various alloys. In alloys lead is used for increasing hardness, mechanical
resistance and protection from abrasion.
As a result of the decreasing use of lead-containing additives in petrol in the
past years, concentration of lead in air, water and food is declining. The
presence of lead in water is primarily from household plumbing systems, but
not from natural sources.
In general concentrations of lead in drinking-water are below 5 µg/litre.
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Toxicology
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For lead the guideline value for chemicals that are of health siginificance in
drinking water according to
World Health Organisation
is 0.01 mg/litre.
Lead and its sulfide, being incapable of absorption, are considered innocuous
to a large extend, but it´s soluble salts are very poisonous. Intoxication
caused by lead is mainly a consequence of exposure of its compounds to vapors
and dusts.
Symptoms for lead intoxication are, amongst others, intestinal malfunction,
abdominal pain and appetite loss.
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Method
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The concentration of lead is analysed by the use of a specific ion selective
electrode (ISE) sensitive to lead ions.
The electrode allows for the determination of the concentration plus the
activity of lead ions.
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Application information
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Measuring range
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0.2 - 20,000 mg/l Pb
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Resolution
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0.01
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Accuracy
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+/- 2% (based on full scale)
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Measuring interval
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Continuous
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Discontinuous/programmable
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External start
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Measuring method
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Ion selective electrode
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Reagents
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1
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Calibration
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Automated
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Cleaning
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Automated
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Interferences
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Ag, Hg, Cu
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Interfering ions can be masked in local applications.
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Technical information
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Power supply
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230 VAC, 50 Hz (110 VAC optional)
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Current consumption
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Max. 50 VA
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Switch contacts
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2 x P-controlled (min, max)
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1 x alarm contact
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Analogue output
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4..20 mA
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Digital output
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RS232 C
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Options: Interbus-S, Profibus, CAN
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Cabinet size
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746 x 600 x 373 mm (HxBxD)
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Weight
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App. 80 kg
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Environmental temperature
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+15°C .. +35°C
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Humidity
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Max. 70% RH, no condensation
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Sample pressure
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0 .. 0.5 bar
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Sample inlet
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6/4 mm hose
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Sample drain
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Unpressurised, free falling, 6/4 mm hose
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Downloads
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DataSheet COMPOSER Carl Czerny - SEIBOLD Online-Analyser for Lead (english)
Datenblatt COMPOSER Carl Czerny - SEIBOLD Online-Analysator für Blei (deutsch)
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Carl Czerny
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Carl Czerny, born on February 21st, 1791 in Vienna, was a famous Austrian composer
and pianist. Well trained by his father, he was a brilliant pianist with only ten
years of age and then became student of Ludwig van Beethoven.
He later wrote far more than 1000 compositions and was, amongst others, tutor of
Franz List. Carl Czerny was acknowledged for his piano lessons, e.g. The School
of Velocity and The Art of Finger Dexterity. Although he was an outstanding
mucisian, he performed only very limited concerts himself.
Carl Czerny died on July 15th, 1857 in Vienna.
The work of Carl Czerny comprises:
piano lessons
various symphonies
piano concerts
church music
chamber music
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SEIBOLD-Messtechnik und Projektentwicklug GmbH, A-1110 Wien, Grillgasse 51
Tel +43 1 332 00 60, Fax +43 1 332 00 60 44,
office@seiboldme.com
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