Grant-bio DEN-series densitometers are extremely compact, benchtop nephelometers developed primarily for microbiological and Life Science applications involving the turbidity of bacterial and other cell suspensions.
General specifications:
- Measure turbidity in McFarland units*
- Choice of ranges:– 0.3 to 5 McF (model DEN-1) or 0 to 6 McF (model DEN-1B) but can measure from 0 to 15 McF, operating under a wider standard deviation
- Factory calibrated, with non-volatile memory. Can be user calibrated using commercial standards or prepared cell suspensions
- Accepts 18mm overall diameter sample tubes (or 16mm overall diameter tubes using the adapter supplied) for 2ml minimum or greater sample volumes
DEN-1B features:
| Model | DEN-1B | |
| Range x resolution | McF* | 0.00 to 15.00 x 0.01 |
| Precision | % | ±3 |
| Measurement time | secs. | 1 |
| Display | LCD | |
| Overall W x D x H | mm | 165 x 115 x 75 |
| Weight | kg | 0.7 |
*1 McFarland unit approximates to 3 x 108 CFU per ml
Supplied with adapter for 16mm diameter sample tubes, a.c. adapter for 100-240V 50/60Hz a.c. supplies and 3 x 1.5V AA batteries.