Manual Colony Counters

Introduction to Manual Colony Counters

A manual colony counter is a microbiology device used to assist analysts in visually and accurately determining the number of colonies growing on Petri dishes via manual touch counting. This device optimizes observation thanks to an optimal lighting system and a convenient working surface, suitable for routine quantitative microbiological analyses.

When purchasing a manual colony counter, testing laboratories should prioritize ergonomic design criteria to reduce eye fatigue and musculoskeletal disorders during prolonged use. In addition, the ability to provide clear contrast lighting for distinguishing colonies is a key technical factor. Currently, Hoa Viet supplies the Scan manual colony counter series from Interscience (France), delivering an efficient and durable solution for laboratory technicians.

What is the operating principle of a manual colony counter?

The device operates based on a pressure-sensitive mechanism: when the user touches a colony on the culture plate with a specialized pen, each touch triggers an audible signal or indicator light, and the counter automatically increments. The sub-stage backlighting system enhances contrast, allowing easy visual colony detection with the naked eye.

What does the ergonomic design of a colony counter mean for the analyst?

The ergonomic design provides a comfortable sitting posture and arm position, reducing strain on the operator's wrists, arms, and eyes. This minimizes musculoskeletal disorders when technicians perform continuous microbial counting for long hours.

Which brand of manual colony counter does Hoa Viet supply?

Hoa Viet currently supplies manual colony counters from Interscience (France), prominently featuring the Scan50 product line. Customers can contact Hoa Viet for detailed information and technical support on this product line.

What should be noted when maintaining and cleaning manual colony counters?

After finishing work, disconnect the power supply and use a soft cloth moistened with a suitable disinfectant solution to wipe the counting surface and surrounding areas. Avoid liquid entering the device casing, and always place the instrument in a dry, dust-free location.