The most time-consuming part of performing a microbial count is the actual counting process on Petri dishes. Colony counters facilitate this task and are essential in every bacteriological laboratory. The WTW BZG 30 offers easy, rapid and reliable counting of bacterial colonies with very simple handling.
The colony counter BZG 30 is easy-to-use, and allows fatigue-free and safe work thanks to its problem-free counting mechanism: The surface on which the Petri dish is placed is pressure-sensitive; marking the colonies on the Petri dish with the marker pen activates the counter. The pressure sensitivity is adjustable for optimal adaptation to the operator.
The colony counter BZG 30 has an acoustic check signal and automatically compensates for the weights of different Petri dishes; the pressure sensor is also uniformly sensitive over the whole working area. Zero-voltage protection guards against power interruptions.
The ring-shaped lamp provides uniform illumination; the magnifier offers distortion-free optics and can be precisely positioned on its extremely flexible arm.
The user is able to select direct or indirect illumination. Direct illumination is particularly suitable for nutrient agars with a dark background; indirect illumination for lighter agars. Colony counter BZG 30 has an additional counter input for counter marker KS 30 and is supplied with an interchangeable Wolffhügel grid.
| Counter | LED display (0 ... 999) with reset to 0 |
| Standard magnifier | 1.7-fold surface magnification, 100 mm (3.34 in) dia. |
| Illumination | 20 W ring lamp |
| Power supply | 230 V ± 15%, 50 ... 60 Hz or 115 V ± 15%, 50 ... 60 Hz, as selected |
| Power consumption | 21 W |
| Dimensions | 300 x 325 x 90 mm (11.81 x 12.80 x 3.54 in) (B x D x H) with magnifier arm |
| Weight | 5,6 kg (12.346 lb) |
