| Measurement Method |
Ratio turbidimetric determination using a primary nephelometric light |
| scatter signal (90°) to the transmitted light scatter signal |
| Regulatory |
Meets EPA Method 180.1 |
| Lamp Source |
Tungsten filament lamp |
| Range |
0-1000 NTU |
| Accuracy |
±2% of reading plus stray light from 0-1000 NTU |
| Repeatability |
±1% of reading or 0.01 NTU, whichever is greater |
| Resolution |
0.01 NTU on lowest range |
| Stray Light |
= 0.02 NTU |
| Signal Averaging |
Selectable on or off |
| Detector |
Silicon Photodiode |
| Reading Modes |
Normal (Push to Read) |
| Signal Averaging |
| Rapidly Settling Turbidity(TM) |
| Calibration Options |
Single step RapidCal(TM) for low-level regulatory reporting from 0-40 NTU |
| Full range calibration from 0-1000 NTU |
| Calibration to degrees of turbidity |
| Calibration Logger |
Records the last 25 successful calibrations |
| Verification Logger |
Logs the last 250 successful verifications |
| Data Logger |
500 records |
| Power Requirement |
AC 100-240 V, 50/60 Hz (with Power or USB+Power Module) |
| 4 AA alkaline batteries |
| Rechargeable NiMH (with USB+Power Module) |
| Operating Conditions |
Temperature: 0 to 50 °C (32 to 122 °F) |
| Relative Humidity: 0-90% at 30 °C, 0-80% at 40 °C, 0-70% at 50 °C noncondensing |
| Storage Conditions |
-40 to 60 °C (-40 to 140 °F), instrument only |
| Interface |
Optional USB |
| Sample Required |
15 mL (0.5 oz.) |
| Sample Cells |
Round cells, 60 x 25 mm (2.36 x 1 in.), borosilicate glass with screw caps |
| Dimensions |
22.9 x 10.7 x 7.7 cm (9.0 x 4.2 x 3.0 in.) |
| Weight |
530 g (1.17 lb) without batteries |
| 620 g (1.37 lb) with four AA alkaline batteries |
| Meter Enclosure Rating |
IP67 (closed lid, battery and module compartment excluded) |
| Protection Class |
Power supply: Class II |
| Certification |
CE certified |
| Warranty |
1 year |
