ATIs Model C10/77 Particle Counter is designed to provide valuable particle data by continuously monitoring particle counts in raw water, filter influent, or filter effluent. Based on a laser light blocking principle, this sensor will provide particle count data over size ranges from 2 to 400 microns, with three 4-20 mA analog outputs and an RS-232/485 digital output supplied as standard. The scaling of the three 4-20 mA outputs is selectable by use of DIP switches mounted on the counter circuit board, and can be set from 0-127 up to 0-32,000 counts per ml., with one channel proportional to total particles, one channel proportional to particles in the range of 3-5 microns, and one channel proportional to particles in the range of 7-10 microns. The digital output provides actual particle counts for particle sizes 2, 3, 5, 7, 10, 15, 20, and 200 microns. This data can be used for computerized calculations of filter removal efficiencies as well as trending of particle data.
Each C10/77 Particle Sensor contains an integral LED display used to indicate either raw count data or differential counts. The user may select a display of the total particles above a certain size, or differential counts of 2-3μm, 3-5μm, 5-7μm, 7-10μm, 10-15μm, or 20-200μm. The display is operated from sealed membrane switches on the front of the unit. Particle alarm indication can also be programmed at the counter so that high particle counts are indicated locally.
A unique feature of the C10/77 sensor is an easily removable measuring cell. Since deposits on optical surfaces can degrade particle sensors over time, the cell can be easily removed for cleaning. And because all cell are interchangeable, a spare cell can be inserted in seconds so that monitoring can continue while cell cleaning is done at your convenience.
Data from other devices can also be monitored through theC10/77 Counter. Each unit contains 3 optically isolated 4-20 mA input channels. This allows data from other instruments such as turbidimeters, pH monitors, residual chlorine monitors, etc. to be read over the RS232/485 communication link using the software package.
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