User Manual

CS475, CS476, and CS477 Radar Water Level Sensor
Accuracy
CS475: ±5 mm (±0.2 in)
CS476: ±3 mm (±0.1 in)
CS477: ±15 mm (±0.6 in)
Resolution: 1 mm (0.0033 ft)
Output Protocol: SDI-12
6.1 Radar Unit
Frequency: ~26 GHz
Electromagnetic Compatibility: Emission to EN 61326;
Electrical Equipment Class B
Pulse Energy: 1 mW maximum
Beam Angle
CS475: 10° (3-in dia horn)
CS476, CS477: 8° (4-in dia horn)
Power Requirements
Input Voltage: 9.6 to 16 Vdc
Surge Protection: 1.5 KVA
Typical Current Drain with 12 V Power Supply
Sleeps: 4.7 mA
Measurement: 14 mA
6.2 Environmental
Operating Temperature Range: –40° to +80°C
Storage Ranges
Temperature: –40° to +80°C
Relative Humidity: 20% to 80% RH
Temperature Sensitivity: average TK: 2 mm/10 K,
max 5 mm over the entire
temperature range of
–40°to +80°C
Vibration Resistance: Mechanical vibrations with 4 g
and 5 to 100 Hz
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