Beckman Coulter Z1 Particle Counter

Cell Counting and Sizing    
Both Z1 Single and Dual Threshold Models use the Coulter Principle (Electrical Sensing Zone Method) for counting cells or particles in the 1-120 micron size range. This technique provides accuracy, speed, versatility, and excellent precision; it is the accepted reference method for cell counting. Standard apertures are available in five sizes. In addition, for vey small sample volumes, ampoule insertable apertures may be used.    
    
The Z1 Single Threshold Model    
The Z1 Single Threshold instrument allows the operator to set one size threshold. Cells equal to or larger than this setting will be counted. Ideal as a fully automated instrument for the rapid enumeration of both tissue culture and blood cells from most any species. Excellent for rapid total cell count on cell lines containing cells of relatively uniform size.    
    
The Z1 Dual Threshold Model    
The Z1 Dual Threshold Model counts cells or particles in three regions, equal to or above the operator selected lower size, above the upper size setting and between the two sizes. Excellent when cell numbers between a selected size range are required. Instrument of choice when working with numerous cell types, containing variable cell sizes, or platelets.    
    
The Superiority of The Z1 Instruments: More Than Simple To Use, It's Almost Impossible To Misuse    
    
Z1 instruments incorporate a unique, new oil displacement pump which delivers a high degree of accuracy and precision, and eliminates the need for mercury utilized in the traditional mercury manometers. The Z1 was specifically designed for simple operation. Enter the cell size (diameter or volume) and press START. The count is completed in seconds. Clear messages on the LCD display lead you through all set-up and analyses functions. Calibration requires only several keystrokes; optimum instrument settings are automatically computed and set. The constant current feature of the Z1 eliminates calibration drift due to changes in electrolyte conductivity and temperature, a very common problem with other instruments.