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DEN-1B, Densitometer (suspension turbidity detector)

DEN-1B, Densitometer (suspension turbidity detector)
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DEN-1B, Densitometer (suspension turbidity detector) - 1

Biosan SIA., Ratsupites 7, build. 2, Riga, LV-1067, Latvia, Phone: +371 674 261 37, Fax: +371 674 281 01, E-mail: marketing@biosan.lv, www.biosan.lv DEN-1B, Densitometer (suspension turbidity detector) DESCRIPTION Densitometer is designed for measurement of cell suspension's turbidity in the range of 0.0–6.0 McFarland units (0 – 180×107 cells/ml). Densitometers provide the opportunity to measure solution turbidity in a wider range (up to 15.0 McFarland units) however, it is necessary to remember that in this case the standard deviation values increase. A densitometer is used for measurement of cell concentration (bacterial, yeast cells) during fermentation process, determination of microorganism sensitivity to antibiotics, microorganism identiﬁcation using various test-systems, for measurement of absorption at the deﬁnite wavelength, as well as for quantitative estimation of concentration of colour solution, absorbing green light. The operation principle is based on measurement of optical density with digital presentation of results in McFarland units. The unit is calibrated at the factory (for operation with 16 mm diameter glass tubes) and keeps calibration without power supply. However, if necessary it is possible to calibrate the unit by 2–6 points in 0.0–6.0 McFarland unit range. We recommend to use Biosan standards to ensure full reliability, but it is acceptable to use other commercial as well as self prepared standards (e.g. BaSO4). Possibility to restore factory calibration settings. Following calibration kits are available on request: CKG16 for glass tubes with diameter 16 mm, set of 0.5; 1.0; 2.0; 3.0; 4.0 McFarland Turbidity Standards (latex particles); CKG1802 for glass tubes with diameter 18 mm, set of 0.5; 1.0; 2.0; 3.0; 4.0; 5.0 McFarland Turbidity Standards (BaSO4); CKG12 for glass tubes with diameter 12 mm, set of 0.0 (blank); 0.5; 2.0; 3.0 McFarland Turbidity Standards (latex particles). 230VAC 50/60Hz UK plug, 230VAC 50/60Hz AU plug, 100VAC 50/60Hz US plug, 120VAC 60Hz US plug Two versions of the product are available: 1. DEN-1 powered from external energy supply; 2. DEN-1B powered both from external energy supply and from batteries (АА). DEN-1B, Densitometer (suspension turbidity detector)

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DEN-1B, Densitometer (suspension turbidity detector) - 2

SPECIFICATIONS Measurement range Display resolution Light source Measurement time Sample volume not less than 2 ml 12 mm, 16 mm (using A-12, A-16 adapter) or 18 mm (without adapter) Tube external diameter Possibility to restore factory calibration settings Independent power supply Overall dimensions (W×D×H) Input current/power consumption External power supply External power supply, A-16 and 3 × AA batteries Glass sample tubes BS-050102-LK Glass sample tubes without lid (16х100x0.8mm), 78 pcs. Fits DEN-1, DEN-1B factory calibrated CKG16 for glass tubes with diameter 16 mm, set of 0.5; 1.0;...

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