Product Description
l three modes of illumination: from below, from the side and from the top (optional)
l Petri dishes or nutrient disks with 90 mm, 60 mm or 150 mm (optional)
l high transparency of colonies reached by LED-light source - practically no heat
transferred to the sample
l light intensity, pressure sensitivity for count and acoustical counting signal adjustable
l average determination
l data transfer via USB
Designed for reliable and efficient counting of bacterial colonies and bacteriophage plaques growing on nutrient agar or nutrient disks/filter disks in Petri dishes.
For Petri dishes up to 150 mm.
Easy adjustable illumination intensity. Three modes of illumination sideways from below, sideways from above and top-light (optional).
State-of-the-art LED-light allows for glarefree illumination without blinding or straylight. No eyestrain. A sofar unknown transparency and differentiation is obtained. Contrast-disk for counting colonies in light and dark fields for the use with clear or dark agar. Adjustable pressure-sensitivity for counting. Designed for ergonomic and relaxed working.
Accurate color re-production makes it easier to distinguish between differently coloured cultures on selective culture media and nutrient disks in food analysis. With process water and waste water, the high contrast illumination simplifies the task of distinguishing between colonies that develop within the agar and colonies that grow on the agar surface.
The counting impulse is realized by marking the colonies with an ordinary felt-tip marker pen. An acoustical signal confirms each sound its sound level is individually adjustable.
The attachment is equipped with a pen holder.
With a 4-digit LED-display (0-9999) and a clearly arranged keypad for all controls.
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Technical Data
| Dimensions (w x h x d): | 260 x 130 x 250 mm |
| Height with gooseneck magnifying glass/lamp: | approx. 300 mm |
| Weight: | 1.5 kg |
| Power: | 100-240 V / 50-60 Hz |
| Power adapter: | 5 V DC, 2100 mA, 7,5 W |
Enhanced Accuracy and VisibilityEquipped with a magnifying lens and built-in LED illumination, the Manual Colony Counter increases visibility while counting, ensuring highly accurate results. The digital LED display provides instant readouts, while an audible beep confirms each registered colony, eliminating guesswork during enumeration.
User-Friendly Design for LaboratoriesDesigned for bench-top use, this device accommodates Petri dishes up to 90mm in diameter. The detachable marking pen and pressure sensor (or pencil touch) offer seamless marking and counting, supporting a test range of up to 9,999 colonies on a single specimen. Its robust ABS plastic and glass construction ensures long-term reliability and compliance with laboratory standards.
FAQs of Manual Colony Counter:
Q: How do I operate the Manual Colony Counter for effective colony enumeration?
A: To operate, place the Petri dish on the Wolffhuegel glass plate and use the pressure sensor or the provided marking pen to touch each colony. Each touch is instantly counted and displayed on the digital LED panel, accompanied by an audible beep for confirmation. Use the rotary knob to reset or adjust as needed.
Q: What benefits does the built-in LED illumination provide during counting?
A: The integrated LED illumination enhances visibility by evenly lighting the Petri dish, enabling more precise identification and counting of colonies, especially under low-light conditions. This feature, combined with 3X magnification, reduces eye strain and increases accuracy during prolonged use.
Q: When is this colony counter most suitable for use?
A: The counter is ideally used in microbiology laboratories during colony enumeration processes when high accuracy is crucial, such as in quality control, research experiments, or routine microbial testing within a controlled temperature (10C 40C) and humidity (30%80% RH) environment.
Q: Where can I use this device within my laboratory?
A: This equipment is designed for bench-top mounting, making it suitable for a range of laboratory environments including microbiology labs, research facilities, and educational institutions that require precise microbial enumeration.
Q: What process ensures accurate results with this colony counter?
A: The device combines physical touch detection with digital processing. Counting occurs through a pressure sensor or pencil touch, each press resulting in immediate digital registration with 1 count accuracy. The detachable pen assists in marking counted colonies, minimizing the risk of duplicate counts.
Q: How many samples can the colony counter handle at one time?
A: The equipment is designed for single plate processing, accommodating one Petri dish up to 90mm diameter at a time. This ensures focused, accurate counting and easy monitoring of results for each individual specimen.