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OTT RLS – Radar Level Sensor

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OTT RLS – Radar Level Sensor

    • No drift over time
    • High Performance–Measurements are unaffected by air temperature, humidity, flood events, floating debris, or contaminated water; reduces the likelihood of missing data and reduces data post processing
    • Low Maintenance–Flat antenna design eliminates nesting areas for insects and periodic maintenance requirement
    • Flexible Integration/Easy Setup–Connects to most data loggers via standard communication interfaces, SDI-12 or 4 … 20 mA; no need for additional PC software
    • Simple Installation–Light weight compact design facilitates easy mounting on bridges, extension mounting bracket or inside a small protective housing
    • Low Profile Design–Unobtrusive appearance is ideal for urban installation sites or sites prone to vandalism
    • Low Power Consumption–Ideal for remote or solar powered sites; requires only 12 mA when active
    For surface water level measurement of:
    • Streams and rivers
    • Tidal zones
    • Reservoirs and lakes

    Ideal for monitoring:

    • Surface waters prone to flooding
    • Sediment or debris laden streams and rivers
    • Migrating channels

    Water level measurements
    Measuring range 0.4 … 35 m
    Resolution SDI-12 output 0.001 m
    Accuracy (SDI-12) 0.4 … 2.0 m: ±10 mm; 2.0 … 30 m: ±3 mm; 30 … 35 m: ±10 mm
    Average temperature coefficient (-20 … +40 °C) 0.01 % full scale/10 K
    Accuracy (4 … 20 mA) ±0.1 % full scale
    Average temperature coefficient 10 ppm full scale/°C (at 20 °C)
    Measuring time 20 s
    Beam angle of antenna (width of beam) 12 º
    Electrical data
    Power supply 5.4 … 28 V DC, typ. 12/24 V DC
    Power consumption in active mode (at 12 V)
    Power consumption in rest mode (at 12 V)
    Interfaces 4 … 20 mA, SDI-12, RS-485 (SDI-12 Protocol)
    Material
    Housing ASA (UV-stabilized ABS)
    Radom (front plate) TFM PTFE
    Mounting bracket 1.4301 (V2A)
    Lateral axis ±90 º
    Longitudinal axis ±15 º
    Dimensions and weight
    Dimensions L x W x H
    Weight (incl. mounting bracket) approx. 2.1 kg
    Operating temperature: -40 … +60 °C
    Storage temperature -40 … +85 °C
    Relative humidity 0 … 100 %
    Type of protection
    With horizontal mounting IP67 (submersion depth max. 1 m; submersion duration max. 48 h)
    EMV limits and radio approvals
    EMV for low power radio devices ETSI EN 301 489-3
    Low-voltage device safety EN 60950-1
    Radio approval for low power radio devices* Short Range Device (SRD)
    Europe ETSI EN 300 440
    USA FCC 47 CFR Part 15
    Canada RSS 210 Issue 7

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