
For example, the presence of pathogenic microbes such as cryptosporidium in water can be monitored in terms of the two indicators of turbidity and particle size.
Conventionally, the optimal concentration for the measurement of particle size distribution employing the laser diffraction method has been approximately 100 ppm. With the LATS-1, however, an extremely high sensitivity of approximately 100 times that of the SALD series has been achieved, enabling the measurement of particle size distribution even at 0.1 to 1 ppm levels. The particle size distribution of substances which previously could not be measured can now be easily measured using this instrument. It is thus anticipated that new applications will emerge in a variety of fields.
A stable and flat measurement sensitivity over the entire range of measurement has been realized by employing the laser diffraction method as the measurement principle.
Capable of measuring still water, it can also be used for batch measurement in addition to its application as a real time monitor.
Though it is necessary to maintain a constant flow rate of water when operating particle counters or high sensitivity turbidimeters based on such counters, with the LATS-1 there is no need whatsoever to control or measure the water flow rate.
Because measurement is based on the laser diffraction method there is no need for calibration when measuring particle size distribution (particle size and normalized particle amount), which means that particle sizes can be determined accurately. However, when turbidity or the absolute number of particles within a specific volume needs to be ascertained, calibration with the relevant standards is necessary.
The measurement interval can be set freely. At its quickest the instrument can measure turbidity and particle size in approximately 1 second. Hence instantaneous variations can be detected reliably.
A variety of data processing functions such as 3-dimensional graph, overlay graph of particle size distribution results, real time monitoring and time series analysis is equipped as standard.
| Turbidity | Measuring Range | 0 to 3.2NTU (resolution 0.001 NTU) |
|---|---|---|
| Turbidity Standard | Hormazin | |
| Particle size distribution | Measuring Range | 0.5 to 50μm |
| Measurement Principle | Laser diffraction method | |
| Measurement cell | Internal Dimensions | Approx.100 mm square |
| Optical Path | Approx.40 mm | |
| Quantity of water required during real time monitoring | 50 to 3000 cm3/minute | |
| Power requirements | 100~120,200~240VAC 100VA,50/60Hz | |
| Size,Weight | 480mm(W) X 317mm(D) X 474mm(H),approx. 20kg | |
| CPU | Pentium 100MHz or faster | |
|---|---|---|
| Memory | 32 megabytes or more | |
| OS | Windows 95/98/Me/NT4.0/2000 | |
| Display | SVGA 800X800 or better | |
| Printer | One that is compatible with Windows 95/98/Me/NT4.0/2000 | |
| Hard disk capacity | Over 20 megabytes of free hard disk space required | |
| CD-ROM Drive | Required when installing software | |
| Serial Port(RS-3232C) | 1 port | |