Ice Roller,Ice Face Massager,Ice Massage Roller,Ice Ball Face Massager Ningbo Prestigeplus Commodity Co.,Ltd , https://www.prestigemedics.com
Selection criteria for colony counters
Selection criteria for colony counters
The automatic colony counter is popular among many enterprises, hospitals and research institutes because of its accurate counting, high degree of automation, retention of sample information, and ease of use. It can generally count the number of sample colonies and cost-effectiveness in a few seconds, but it is loved by many enterprises, hospitals, and research institutes. Due to the high scientific and technological content of the automatic colony counter, if there is a problem in the selection, it will bring great inconvenience to the future inspection and scientific research work. Therefore, the best way is to select a colony that meets the needs of use. Counter, how to choose a good quality colony counter?
First, determine the grade of the CCD sensor according to the actual use requirements
Many users prefer to choose a high-resolution colony counter, but they do not take into account the actual application requirements of inspection and scientific research, so users must determine how many pixels of CCD sensor they want to buy before purchasing.
Second, look at the image acquisition channel function, the more indicators the better
The so-called "image acquisition channel" is the ability of the colony counter to acquire sample information, that is, whether the initial information before the colony counter starts counting statistics is true and reliable. If the image acquisition channel function is too single, it will be easy to misjudge when counting later, so the more "image acquisition channel" indicators are better. The smaller the indicator response time, the stronger the ability of the colony counter to obtain sample information.
Third, see the minimum colony resolution
Generally, the minimum colony resolution of the entry-level colony counter has an effect of about 0.1mm, and the medium model has a level of 0.05mm. If the actual display of the image of the entry-level and high-end models is displayed, the counter with high resolution is in the colony. The effect will be more noticeable when it is smaller.
Fourth, see if there is data and report management functions
When purchasing a colony counter, it is necessary to select a device with data and report management functions. Due to the non-recoverability of microorganisms, it is extremely important for the management and backtracking of past inspection data. Otherwise, the complicated statistics and actual work are carried out. Report management can drain the energy of researchers.
5. If the index is not high, it will be effective.
Now some colony counters will introduce how many functions of their products, how many high and high indicators, actually wait for the real home to buy, do not use such multi-functional, the most important thing is to count the colonies. The actual effect is not good, you can't buy a device that is not very good for too many functions. The key to the statistical effect is whether the algorithm is reasonable.
Six, see if it is convenient to use
One of the main advantages of the automatic colony counter is that it reduces the workload of manual statistical colonies and reduces the work intensity of the staff. However, due to the uncertainty of colony morphology and sample state, most colony counters on the market emphasize the adoption of labor. Intervention to improve accuracy. When purchasing equipment, users should pay attention to whether the operation is simple, whether it meets the staff's operating habits and operation ideas. In general, the smaller the manual intervention required, the easier it is to use.