CHCNAV

CHCNAV RiverStar RS3600D Dual-Frequency ADCP

Name: CHCNAV RiverStar RS3600D Dual-Frequency ADCP
Brand: CHCNAV
Availability: InStock

$1.00

The RS3600D measures flow accurately in both shallow and deep water. Its 3600 kHz channel resolves velocities as low as 1 cm/s and shrinks the near-surface blind zone to only 5 cm, while 1200 kHz keeps deep-water performance stable.

Intelligent coordination of both frequencies plus a dedicated 600 kHz vertical beam collects complete hydrological data in a single deployment.

Key features

High precision – 3600 kHz for shallow, slow water down to 1 cm/s.
Multi-purpose – 4 beams @ 1200 + 4 @ 3600 kHz + 600 kHz vertical.
Smart frequency – Switches frequency automatically by water conditions.
Wide adaptability – 12 cm, 2 kg – USVs, trimarans, cableways, buoys.
Software – HydroProfiler for PC and EasySail on the Apache 4.
Rugged – 200 m depth rating.

At a glance

9 beams (4 + 4 + vertical)
5 cm top blind zone
2 cm minimum cell
1 cm/s minimum velocity
0.05–40 m profiling
2 kg 191 × 126 mm

Supplied, installed and supported by LATNET in Calgary. Contact us for pricing.

RS600-1200 ADCP High Accuracy Acoustic Doppler Current Profiler

Technical Specifications & Features

RS600/1200 Acoustic Doppler Current Profiler (ADCP)

Dual-frequency ADCP

CHCNAV RiverStar RS3600D – 9-beam dual-frequency ADCP with a 5 cm blind zone

Intelligent coordination of both frequencies plus a dedicated 600 kHz vertical beam collects complete hydrological data in a single deployment.

1200 + 3600 kHz5 cm blind zone1 mm/s resolution2 kg

Request a quote Full specifications

Shallow, slow and deep water

One ADCP for every flow condition

Conventional ADCPs struggle in near-still water below 5 mm/s. The RS3600D offers 1 mm/s resolution, 2 cm cells and smart frequency switching, so low-velocity and very shallow sites become measurable. At 12 cm diameter and 2 kg it fits the Apache 4 series, trimarans, cableways and buoys. See how single-beam, multibeam and ADCP surveys work in our 3D animations.

9beams (4 + 4 + vertical)

5 cmtop blind zone

2 cmminimum cell

1 cm/sminimum velocity

0.05–40 mprofiling

2 kg191 × 126 mm

How it works · 3D

How an ADCP measures river discharge

An acoustic Doppler current profiler looks down through the water with four slanted beams and one vertical beam. The Doppler shift of echoes from suspended particles gives the water velocity in hundreds of depth cells, while bottom tracking measures the boat’s own motion. As the survey boat crosses from bank to bank, each ping becomes one ensemble; adding them up – plus estimates for the unmeasured top, bottom and edges – gives the total discharge Q in m³/s.

Water velocity

01.64 m/s

Drag to rotate

Live discharge

Ensemble: 0
Depth: –
Mean velocity: –
Measured Q: 0 m³/s
Top estimate: 0 m³/s
Bottom estimate: 0 m³/s
Edges: 0 m³/s

Total Q0 m³/s

Why the white areas?

An ADCP can’t measure right under the transducer (draft plus blanking distance – the Top Q depth) or close to the bed, where side-lobe echoes interfere (Bottom Q depth). Software extrapolates these layers and the shallow edges near each bank.

Reciprocal transects

Hydrographers cross the river several times in alternating directions and average the results, removing directional bias. The boat here does the same – watch the transect list grow.

CHCNAV ADCP solutions

RiverStar RS600 / RS1200 – 5 beams, 15 cm blind zone
RiverStar RS3600D – 9 beams, 5 cm blind zone
Apache 4 / 4 Pro USVs with 240 mm ADCP well

Simulated river 40 m wide and 3.4 m deep; vertical scale exaggerated 3×. Values are illustrative.

Key features

Why choose the RiverStar RS3600D

3600

High precision

3600 kHz for shallow, slow water down to 1 cm/s.

Multi-purpose

4 beams @ 1200 + 4 @ 3600 kHz + 600 kHz vertical.

Auto

Smart frequency

Switches frequency automatically by water conditions.

2kg

Wide adaptability

12 cm, 2 kg – USVs, trimarans, cableways, buoys.

Software

HydroProfiler for PC and EasySail on the Apache 4.

200

Rugged

200 m depth rating.

High-precision measurement

Accurate in near-still water

Ultra-high 3600 kHz carrier frequency, a 2 cm minimum layer and a 5 cm top blind zone capture the near-surface and low-velocity flow that other ADCPs miss.

Multi-purpose sensor

Nine beams, three frequencies

Four 1200 kHz beams, four 3600 kHz beams and a 600 kHz vertical depth beam support shallow and deep surveys at high and low flow rates.

Smart frequency conversion

No manual assessment

The RS3600D adjusts its measurement frequency automatically to the water conditions, so operators spend less time on settings and more on measuring.

Wide adaptability

Deploy it anywhere

Only 12 cm in diameter and 2 kg, it mounts on the CHCNAV Apache 4 series USVs, trimarans, cableway towing systems, motorized boats and channel buoys. EasySail outputs flow summaries and result tables; HydroProfiler manages data on PC.

Which ADCP?

Compare CHCNAV RiverStar ADCPs

Acoustic Doppler current profilers measure water velocity through the whole water column to calculate river discharge.

	RS600	RS1200	RS3600D
Flow frequency	600 kHz	1200 kHz	1200 + 3600 kHz
Beams	5 (4 + 300 kHz vertical)	5 (4 + 300 kHz vertical)	9 (4 + 4 + 600 kHz vertical)
Profiling range	0.3–90 m	0.1–40 m	0.05–40 m
Bottom tracking	0.3–120 m	0.1–55 m	0.10–45 m
Minimum cell	0.05 m	0.02 m	0.02 m
Top blind zone	—	15 cm	5 cm
Weight	6.86 kg	3.88 kg	2 kg
Best for	Large, deep rivers	Most rivers and canals	Very shallow or slow water
	RS600	RS1200	RS3600D

Applications

Where it works

Hydrological measurement

Discharge from a USV.

Ecological flow

Low-velocity studies.

Channel monitoring

Canals and channels.

Dam monitoring

Flow near structures.

Datasheet

CHCNAV RiverStar RS3600D technical specifications

Flow frequencies	1200 kHz & 3600 kHz
Transducer	9 beams: 4 @ 1200 kHz, 4 @ 3600 kHz, 1 vertical @ 600 kHz
Velocity range	±20 m/s max; ±5 m/s default
Resolution	1 mm/s
Cells	260
Cell size	0.02–4 m
Profiling range	0.05–40 m
Accuracy	±0.25% ±2 mm/s

Bottom track depth	0.10–45 m
Accuracy	±0.25% ±2 mm/s
Velocity range	±20 m/s max; ±5 m/s default
Vertical beam	600 kHz, 0.2–100 m, 1 mm resolution, ±0.01 m + 0.1% D

Compass	0–360°, ±0.1°, 0.01°
Tilt (pitch and roll)	±90°, ±0.15°, 0.01°
Temperature	–10 to 85 °C, ±0.1 °C, 0.01 °C
Pressure (optional)	0–200 m, 0.5% FS, 0.01 m
Operating mode	Broadband / pulse-coherent; automatic / manual
Data output rate	1–20 Hz
Voltage	11–36 V DC
Communication	RS232, RS422 optional; 4800–115200 baud
Internal storage	32 GB (extensible)
Temperature	Operating –5 to 50 °C · storage –30 to 70 °C
Software	HydroProfiler (PC), EasySail (Android)
Size / weight	191 × 126 mm, 2 kg
Depth rating	200 m

Specifications from the CHCNAV datasheet and subject to change without notice. Ranges and endurance depend on water conditions, temperature, salinity, payload and speed.

Questions

RiverStar RS3600D FAQ

Why two flow frequencies?

3600 kHz gives fine resolution and a 5 cm blind zone in shallow, slow water; 1200 kHz keeps range and stability in deeper water. The RS3600D switches automatically.

What is the blind zone?

The layer just below the transducer that an ADCP cannot measure. A smaller blind zone means less of the flow has to be estimated – see the ADCP animation.

Which platforms does it fit?

The Apache 4 series USVs, trimarans, cableways, survey boats and channel buoys.

RS3600D or RS1200?

Choose the RS3600D for very shallow or very slow water; the RS1200 covers most rivers with 55 m bottom tracking.

Authorized CHCNAV dealer · Calgary, Alberta

Get the RiverStar RS3600D from LATNET

Measure low and shallow flows with the RS3600D on an Apache 4 – supplied and supported by LATNET in Calgary.

Request a quote All hydrographic products

CHCNAV RS600-1200 ADCP

Paired with the CHCNAV Apache 4 USV, it boosts hydrological survey efficiency, requiring only one boat and remote control for field operations.