Sensors

OTT CTD

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Imagen de: OTT CTD

The OTT CTD is an integrated sensor and datalogger for measurement of water level, temperature, and conductivity in groundwater and surface water applications.
It features a robust ceramic measuring cell for long term accuracy and has outputs for salinity and total dissolved solids (TDS). Its built in datalogger manages and stores all measurements at user-programmable intervals.

Specifications

Technical Attributes

*Parameters Measured Water Level
Pressure
Conductivity
Temperature
Battery Type Alkaline
Body material ABS, POM, 904 L (DIN 1.4539)
Conductivity Accuracy Measuring Range 0.001 – 2.000 mS/cm: ±0.5 % of measurement value; min ±0.0025 mS/in (±0.001 mS/cm)
Conductivity Accuracy 2 Measuring Range 0.1 – 100 mS/cm: ±1.5 % of measurement value; min ±0.025 mS/in (±0.01 mS/cm)
Conductivity resolution Measuring Range 0.001 – 2.000 mS/cm: 0.0025 mS/in (0.001 mS/cm)
Measuring Range 0.1 – 100 mS/cm: 0.025 mS/in (0.01 mS/cm)
Interface Infrared (IrDA)
Level Accuracy ±0.05 % FS (linearity and hysteresis)
Lifetime at 1h Reading Intervals NA, min. 1.5 years (high quality battery types)
Measuring Range 0 – 13 ft (0 – 4 m)
Measuring Range Conductivity 0.0025 – 5080 mS/in (0.001 – 2000 mS/cm ); 0.25 – 254 mS/in (0.1 – 100 mS/cm)
Memory 4 MB non-volatile
Number of Measured Values 500000
Operating Temperature Range -13 – +158 °F (-25 – +70 °C) (ice-free)
Power Supply 3 x 1.5 V LR6-cells Alkaline
Protection Class Communication Unit: IP 67
Sensor: IP 68
Reading Interval 1 s – 24 h
Resolution 0.01 ft; 0.001 psi (0.001 m; 0.1 cm; 0.1 mbar)
Storage Interval 1 s – 24 h
System Length 5 – 656 ft (1.5-200 m)
Temperature Accuracy ±0.9 °F (±0.5 °C)
Temperature Compensation +23 – +113 °F (-5 – +45 °C) (ice-free)
Temperature Resolution 0.01 °F (0.01 °C)
Imagen de OTT CTD
Imagen de OTT CTD
Imagen de OTT CTD

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