Overview
The ATU1-D
Turbidity Meter is a direct reading portable instrument which comprises
a Sensor Unit with 30 m cable (standard length) and a compact rugged
Display Unit housed in an FRP case.The Turbidity Meter uses an infrared
back-scattering detection technique. Supensoids are detected in the area
where the pulsed beams from two transmitter elements intersect. The
diffused light at this junction is sensed by a receiving element located
between the two transmitters. The receiver beam has an acceptance angle
of 165 ¢Xand , being located towards the rear of the unit, enables
turbidity measurements to be made over a wide range without alteration
of the optical axis span. Accurate turbidity data are digitally
displayed on an LCD panel with analogue output signals available for
continuous recording.
| Display Unit | |
| Display method | Liquid crystal display |
| Time constant | 1,5,10 sec. Selectable |
| Batteries | C-type dry cell-8 pcs. |
| Current consumption | 40 mA |
| Analog output | 0 to 2V (0 to 200 ppm) |
| Size | 225 mm (W) 200 mm (H) 130 mm (D) |
| Weight | 3 kgs(Housed in FRP Box) |
| Sensor Unit | |
| Principle | Infrared back-scattering method |
| Wave-length | 880 nm |
| Measuring range | 0 to 199.9 ppm |
| Accuracy | ¡Ó2 % |
| Cable length | Standard 30 meters, maximum 100 meters |
| Size | diameter 60 mm, length 206 mm |
| Weight | 1.75 kg (exclusive of cable) |