DEN-1B McFarland densitometer (Ref. 96881) with built-in adapter for 18 mm tubes

Densitometers are designed for measurement of cell suspension's turbidity in the range:

DEN-1 0.3–5.0 McFarland units
(100×106 –150×107 cells/ml);
DEN-1B 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 solution turbidity in a wider range (up to 15.0 McFarland 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, microorganisms identification using various tests-system 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 and keeps calibration without power supply. However, if necessary it is possible to calibrate the unit by 2–6 points in 0.5–5.0 McFarland unit range. Both commercial standards and the cell suspensions prepared 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 andfrombatteries (АА).Besides, DEN-1B operates with higher precision of measurements (up to 0.01 McF).

den 1B

 

For inquiry please kindly email to : lisa@prolabios.com



Related Product

0.01mg Analytical Balance (BEL Balance)
FA (SEM) SERIES Semi-Micro Analytical Balance Recipe database: 99 datas can be stored Automatic internal calibration (one key trigger cal/automatic time-triggered cal) Tare/counting/percentage t...
Dry Heat Incubator Double Module Double Control or Single Control
Dry bath incubator TAL-M2 is a microprocessor-controlled device, high precision of temperature control, sample preparation parallelism, as an alternative to the traditional water bath device. It is re...
Mini Dry Heat Incubator
The mini dry bath heating block is a micro-processor controlled heating block with semiconductor heating technology. It adapts onboard use, smart, light and convenient for movement, suit for any kind ...
LabFlame Range Basic/RF/IR/+/AutoLoop
Security Bunsen Burner Safe gas use Bench, Field and Laminar Flow use Fully stainless steel body Inclination Turbo flame Safety Control System Multiple accessories Security Bunsen Burner ...
Air sampler
The SAS Super IAQ is a microbiological air sampler especially suited for the Indoor Air Quality. It is based on the same working “impact” principle of the portable “Surface Air ...
Disc Dispenser
One of the simplest and most widely used methods for susceptibility testing, disk diffusion is extremely flexible, offering a wide variety of antibiotics and concentrations which can easily be changed...
SensorTurn (Ref. 96796)
Sensor-controlled turntable for Petri dishes The touch-free IR-Sensor technology guarantees extremely simple operation with movements of the hand. Flexible Start-Stop functions or the second timer co...
Rotating Plate Inoculator (Ref. 96794)
The Rotating Plate Inoculator (RPI) is used to inoculate 90 mm agar plates for AST methods such as MIC Test Strip and antibiotic disks. The rotation speed can be easily adjusted to user preference. Th...
e-Loop
Annealing without Flame! The electrical sterilization system e-Loop is most suitable for the sterilization of inoculation loops, needles and instruments. It is ideal for laboratories and safety cabin...
GlowZone (LF4.001.000), Instant Heat – Like a Vulcano.
GlowZone, IR Microincinerator, 230V (LF4.001.000) just needs to be plugged in and will be immediately ready to use, without any warm-up period. Touch-free: ignition by approach. Specifically focused i...