DEN-1 McFarland densitometer

Référence
A04727
Unité de vente
Pièce
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Densitometer DEN-1 and DEN-1B is designed for measurement of cell suspension's turbidity in the range 0.3–5.0 (DEN-1); 0.0–6.0 (DEN-1B) McFarland units (100 x 106–150 x 107 cells/ml; or 0–180 x 107 cells/ml correspondingly). DEN-1 and DEN-1Bprovide the opportunity to measure solution turbidity in a wider range(up to 15.0 McFarland units) however, it is necessary to remember thatin this case the standard deviation values increase.

Adensitometer is used for measurement of cell concentration (bacterial,yeast cells) during fermentation process, determination ofmicroorganism sensitivity to antibiotics, microorganism identificationusing various test-systems, for measurement of absorption at thedefinite wavelength, as well as for quantitative estimation ofconcentration of colour solution, absorbing green light.

Theoperation principle is based on measurement of optical density withdigital presentation of results in McFarland units. The unit iscalibrated at the factory and keeps calibration without power supply.However, if necessary it is possible to calibrate the unit by 2–6points in 0.5–5.0 McFarland unit range. Both commercial standards
(e.g. produced by BioMerieux, Lachema, etc.) and the cell suspensionsprepared in a laboratory can be used for calibration.

Following calibration kits are available on request:
CKG16 for glass tubes with diameter 16 mm;
CKG18 for glass tubes with diameter 18 mm.

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). Besides, DEN-1B operates with higher precision
of measurements (up to 0,01 McF).

Plus d’information
Iso Code PCE
Référence fabricant BS-050102-AAF
Max. volume niet minder dan 2 ml
Portée 0.3–15.0 McF
Source de lumière Licht diode
Code UNSPSC 41103303
Alimentation DC 12V 300 mA
Minuteur Non
Référence A04727
Poids 0.9 kg
Garantie 2 ans
Durée de mesure 1 sec
leadtime 8
eclass 32011702
Dimensions totales 165 x 115 x 75 mm
Unité de vente Pièce
Avec display Oui

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