- The OTT Acoustic Digital Current meter (ADC) delivers consistently accurate results with the most advanced acoustic technology available for point velocity measurement. Designed specifically for in-stream velocity measurement, the ADC features a sensor with two 6 MHz acoustic transducers, temperature and depth sensors, and a cable and handheld unit for signal processing.
- Innovative Technology– Accurate velocity measurements using the latest acoustic technology and automatic discharge calculation based on international standards (USGS and ISO 748)
- High Performance– 6 MHz acoustic transducers and large sample volume reduce potential signal-to-noise issues
- Time Saver– Built-in depth sensor and measurement guidance minimizes time in the field and reduces sources of measurement error
- Simple Setup– Logical menu structure and large buttons help facilitate quick and easy setup
- Easy-to-Use– Review instantaneous velocity and measurement quality data during the measurement with the rod-mounted graphical display
- Versatile– Supports USGS, ISO, ICE, KREPS, and multi-point velocity methods and Mid and Mean section discharge methods
- Flexible– Attaches to common wading rods like the USGS Top Setting wading rod
Thông số kỹ thuật
- Water Velocity Measurement :
+ Range : -0.2 m/s ... + 2.5 m/s
+ Accuracy : ±1% of measured value ±0.25 cm/s
- Sampling volume :
+ Distance from probe : 10 cm
+ Diameter : 1 cm per beam
+ Length : 5 cm
- Ultrasonic Transducer :
+ Acoustic frequency : 6 MHz
- Absolute Pressure Cell : Piezoresistive
+ Range : 0 ... 5 m
+ Resolution : 0.01 % FS
+ Accuracy : 0.1 % FS
+ Max. Overload : 1.5 of full range
- Temperature : Thermistor embedded in probe
+ Range : -5 ... +35°C
+ Resolution : 0.1°C
+ Accuracy : ±0.5°C
- Electrical data :
+ Capacity : 4 MB
+ Power supply : 9.6 VDC - rechargeable batteries
+ Operating time : typical 14 hours
- Environmental conditions :
+ Operating temperature range : -20 ... +60°C
+ Storage temperature range : -40 ... +85 °C
- Shock and vibration : Compliant with EN 60068-2-32
- Dimensions
+ Cylinder : Ø 40 mm x 14.5 cm
- Weight :
+ In air : 800 g
+ In water : 620 g