OTT Hydromet - Add-on for Orckestra
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OTT SLD - Doppler Flow Sensor 1MHZ

OTT SLD - Doppler Flow Sensor 1MHZ
Product #: 22.300.030.9.01
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Technology

Equipped with two horizontal ultrasonic transducers "looking sideways" into the flow (Side Looking Doppler) to measure water velocity.

Level Measurement

An optional vertical transducer and integrated pressure cell measures the water level.

Internal Processing

All measurement values are analyzed, verified and processed by an integrated signal processor, before being used in the calculation of discharge.

Internal & External DIscharge calculation

Velocity measurements from up to nine cells are used, along with measured water level, to calculate discharge either internally in the OTT SLD or externally in a data logger.

Communication

All measurements can be retrieved using SDI-12, RS485 , RS232 or Modbus RTU protocols and are available for storing in a data collection platform, such as the OTT netDL station manager.

Specifications

*Parameters Measured: Flow Velocity
Accuracy: Velocity: 1% of measured value +/- 5 mm/s
Water Level: +/- 3 mm
Cable Length: RS 422/485 max. 547 yd (500 m) (9600 baud)
RS232/SDI-12 max. 71.08 yd (65 m) (9600 / 1.200 baud)
Interface: RS-232; SDI-12 or SDI-12 via RS-485; Modbus (optional)
Measuring Range: Velocity: - 32.808 - +32.808 ft/s (-10 - +10 m/s)
Water Level: 0.492 - +32.808 ft (0.15 - 10 m)
Memory: 9 MB
Minimum water level: 6 in (15 cm)
Number of Measuring Cells: 9
Operating Frequency: 1 MHz
Profiling Range: 82 ft (25m)
Resolution: Velocity: 0.04 in/s (1 mm/s)
Water Level: 0.04 in (1 mm)
Sampling Quality: 82 ft (25m)