CS477-L
CS477-L
RetiredRadar Water-Level Sensor
No longer available to order
This product is retained for service, documentation, and compatibility information.
Replaced by
- CS475A-L
Radar Water-Level Sensor
- Model:
- CS477-L
- Item Number:
- 25612
- Warranty:
- 2 years
Overview
The CS477 is a radar-ranging sensor that monitors water level of rivers, lakes, tidal seas, and reservoirs. It can measure distances up to 70 meters. The CS477 outputs a digital SDI-12 signal to indicate distance and stage. This output can be read by many of our data loggers.
Key Advantages
FCC approved for outdoor use
Technical Description
The CS477 emits short microwave pulses and then measures the elapsed time between the emission and return of the pulses. The elapsed time measurement is used to calculate the distance between the sensor and the target (e.g., water, grain, slurry). The distance value can then be used to determine depth.
Benefits
- FCC approved for outdoor use (FCC ID number MOIPULS616263)
- Ideal for areas where submersed sensors can be damaged due to corrosion, contamination, flood-related debris, lightning, or vandalism
- Compatible with most Campbell Scientific data loggers
- Low maintenance—no moving parts significantly reduces maintenance cost and time
- Low power consumption
- Rugged enough for harsh environments—NEMA rated 4X
- Wide operating temperature range (-40° to +80°C)
Specifications
- Compliance
- FCC approved for outdoor use
(FCC IC number M01PULS616263)
- Measurement Range
- 400 mm to 70 m
(16 in. to 230 ft)
- Accuracy
- ±15 mm
(±0.6 in.) over entire measurement range
- Resolution
- 1 mm
(0.04 in.)
- Output Options
- SDI-12
- Radar Frequency
- ~26 GHz
- Electromagnetic Compatibility
- Emission to EN 61326; Electrical Equipment Class B
- Pulse Energy
- 1 mW
(maximum)
- Beam Angle
- 8°
- Input Voltage
- 9.6 to 16 Vdc
- Surge Protection
- 1.5 KVA
- Temperature Sensitivity
- Average TK is 2 mm/10 KMaximum 5 mm
(over the entire temperature range of -40° to +80°C)
- Vibration Resistance
- Mechanical vibrations with 4 g and 5 to 100 Hz
- Housing Rating
- NEMA 4x
- Housing Material
- Aluminum, coated IP66/68
- Horn Material
- 316L stainless steel
- Typical Sleep Current Drain
- 4.7 mA
(with 12 V power supply)
- Typical Measurement Current Drain
- 14 mA
(with 12 V power supply)
- Side Cap Diameter
- 8.6 cm
(3.4 in.)
- End Cap Diameter
- 8.6 cm
(3.4 in.)
- Horn Diameter
- 9.5 cm
(3.7 in.)
- Horn Length
- 43.0 cm
(16.9 in.)
- Head Width
- 13 cm
(5 in.)
- Total Length
- 58.5 cm
(23 in.)
- Weight
- 4.3 kg
(9.4 lb)
Accessories
(5)Common Accessories
(4)25616
CS475, CS476, or CS477 Adjustment Display Module
The 25616 is a display module used for changing settings, testing, and diagnostics. A cap is available for this display (see below).
Orderable25654
CS475, CS476, or CS477 Cap with Window for Use with Display
The 25654 provides a cap with a window. It is used with the 25616 display module.
Orderable27162
CS476 and CS477 Enclosure Mounting Kit
The 27162 is a mounting bracket for the field enclosure.
Orderable39642
SDI-12 DIN Rail Terminal Bus Kit without Mounting Bracket
The 39642 makes it easier for you to connect wires from multiple SDI-12 sensors into one set of terminals on a data logger. The 39642 uses six DIN-rail mountable (pn 27479), 6-wire terminal blocks. The 39642 is a jumper that electrically connects two terminal blocks together at a time (pn 32918). This setup allows up to 11 SDI-12 sensors to be connected to one set of terminals on a data logger.
Orderable
Related Resources
Case Studies
Documents
- Manual
CS475, CS476, and CS477 Radar Water Level Sensor
May 2017
View Document - Brochure
CS477-L Radar Water-Level Sensor
March 2026
View Document - Manual
SDI-12 Terminal Bus Kit Getting Started Guide
May 2026
View Document - Brochure
CS475, CS476, and CS477 Radar Water Level Sensors
August 2016
View Document
Showing 4 of 6 results
See all DocumentsVideos and Tutorials
Services Available
- Repair
- Yes
- Calibration
- No
- Free Support
- No


