Argonaut-SL Side-Looker
Designed with the need for an easy way to measure water velocity, level and calculate flow / discharge in open channels, the Argonaut-SL has earned worldwide acceptance as a long-term monitoring solution. Fully featured with accessories, mounting options, software, and a variety of integration formats, the Argonaut-SL fits your application in the way you need it to.
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Have a question about your Argonaut-SL Side-Looker? Check out the support page with resources compiled just for you.
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Specification Sheets
Case Studies
Automated Gauging of the Narmada Main Canal
The Argonaut SL is designed specifically for side mounting on bridges, canal walls, or riverbanks, the SL’s low-profile housing makes installation easy. With three models to choose from, the SL can be used in channels as small as you can jump across to rivers as wide as the Severn Estuary. Ultra narrow beam widths combined with unmatched side lobe suppression provide the acoustic directivity necessary for achieving maximum horizontal range free of interference from surface or bottom boundaries.
 SL3000 |
 SL1500 |
 SL500 |
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| Sampling range | 0.1 to 5m | 0.3-17 ft | 0.2 to 20m | 0.7-66 ft | 1.5 to 120m | 5-400 ft |
| Minimum Channel Width | 0.75m | 2.5 ft | 1.50m | 5 ft | 6.5m | 21 ft |
| Acoustics | |||
| Horizontal Beam Width | 1.4° | 1.4° | 1.4° |
| Vertical Beam Width | 1.4° | 2.9° | 3.8° |
| Side Lobe Suppression | >60dB | >60dB | >60dB |
| PowerPing Hi-Precision | Yes | Yes | n/a |
| SonTek TrueCompass/Tilt | n/a | Yes | Yes |
| Water Level | |||
| Vertical Beam Range | 0.1 to 5m | 0.3-17 ft | 0.15 to 10m | 0.5-33 ft | 0.2 to 18.0m | 0.7-59 ft |
| Accuracy: Depth<3m (SL500 <6m) Depth≥3m (SL500 ≥6m) |
±0.3cm (0.01 ft) ±0.1% |
±0.3cm (0.01 ft) ±0.1% |
±0.6cm (0.02 ft) ±0.1% |
| Pressure Sensor | n/a | 0.25% Accuracy | 0.25% Accuracy |
| Wave Height Spectra | n/a | Optional | Optional |
| Power | |||
| Input | 7-15 VDC | 7-15 VDC | 7-15 VDC |
| Consumption | 0.5 to 0.7 W | 0.5 to 0.7 W | 0.7 to 1.0 W |
| Physical | |||
| Weight in Air | 1.2 kg | 2.6 lb | 2.4 kg | 5.3 lb | 6 kg | 13.2 lb |
| Weight in Water | 0.3 kg | 0.7 lb | 0.2 kg | 0.5 lb | 1.1 kg 2.5 lb |
| Pressure Rating | 30 m | 98 ft | 30 m | 98 ft | 30 m | 98 ft |
| Mounting Plate Dimensions | 28 x 25 x 1 cm | Integrated Mount | 35.5 x 22.9 x 1.5 cm |