RSS: Horizontal intake passive suspended sediments sampler

RSS: Horizontal intake passive suspended sediments sampler

Passive rising stage sampler for suspended sediment collection in flashy or intermittent streams. Automatically collects samples as water levels rise and reach multiple inlets, enabling unattended sampling at remote sites during rapidly changing flow conditions.
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Container
  • Material: high density polyethylene
  • Capacity:
    • 1 litre (stand-alone or as part of the RSS/3 and RSS/5 assemblies with stands, see below)
    • 2.5 litres (stand-alone only)
    • 4 litres (stand-alone only)
  • 1 litre bottles available as white container (optional) or as UV stabilised brown
Intake and Exhaust Tubes Stainless steel
Scope of Delivery Bottle with stopper and inlet/outlet tubes
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RSS device with cylindrical housing and curved metal tube
RSS – Horizontal intake passive suspended sediments sampler
Passive rising-stage sediment sampler

Operation

As the water rises in the stream it reaches the crown of the intake, flow starts over the crown, and begins to fill the bottle. Sampling ceases when the level of the water in the bottle reaches the inner end of the air exhaust that prevents circulation through the sampler. An air-lock also forms in the intake and prevents enrichment of the sample from water flowing back and forward in the intake and transporting sediment into the sample container.

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