| Range | 0 - 10,000 NTU | 
        
            |  | 0 - 2,450 EBC | 
        
            |  | 0 - 10,000 FNU | 
        
            |  | 0 - 10,000 FAU | 
        
            | Principal of operation | Nephelometric | 
        
            | Ratio (color correction) | Full time ON or OFF | 
        
            | Accuracy | ± 2% of reading plus 0.01 NTU (0 to 1000 NTU) | 
        
            |  | ± 5% of reading (1000 to 4000 NTU) | 
        
            |  | ± 10% of reading (4000 to 10,000 NTU) | 
        
            | Resolution | 0.0001 NTU on lowest range | 
        
            | Response time | Less than 6 seconds | 
        
            | Sample size | 30 ml | 
        
            | Light source | Quick connect tungsten filament or infrared | 
        
            | Operating temperature | 32° - 122°F (0° - 50°C) | 
        
            | Air purge | Connection for external dry air supply | 
        
            | Outputs | RS-232 serial port (bidirectional) | 
        
            | Shipping dimensions | 14 x 12 x 12 inches (35.5 x 30.4 x 30.5 cm) | 
        
            | Weight | 7.0 lbs. (3.18 kg) | 
        
            | Certification | UL, CSA, CE, USEPA, ISO7027 |