| Range |
|
0.00 to 9.99; 10.0 to 99.9 and 100 to 1000 NTU |
| Range Selection |
|
automatic |
| Resolution |
|
0.01 NTU from 0.00 to 9.99 NTU; 0.1 NTU from 10.0 to 99.9 NTU; 1 NTU from 100 to 1000 NTU |
| Accuracy @25°C |
|
±2% of reading plus 0.02 NTU |
| Repeatability |
|
±1% of reading or 0.02 NTU, whichever is greater |
| Stray Light |
|
< 0.02 NTU |
| Light Detector |
|
silicon photocell |
| Light Source |
|
tungsten filament lamp |
| Lamp Life |
|
greater than 100,000 readings |
| Method |
|
Ratio Nephelometric Method (90°), ratio of scattered and transmitted light; Adaptation of the USEPA Method 180.1 and Standard Method 2130 B |
| Measuring Mode |
|
normal, average, continuous |
| Turbidity Standards |
|
<0.1, 15, 100 and 750 NTU |
| Calibration |
|
two, three or four-point calibration |
| Log Memory |
|
200 records |
| PC Connectivity |
|
USB or RS232 |
| Environment |
|
up to 50°C (122°F); RH max 95% non-condensing |
| Power Supply |
|
1.5V AA alkaline batteries (4) or AC adapter; auto-off after 15 minutes of non-use |
| Dimensions / Weight |
|
224 x 87 x 77 mm (8.8 x 3.4 x 3.0”) / 512 g (18 oz.) |