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Applications
Measuring suspended sediment transport in rivers and other water courses
Specifications
Particle size: >50 μm
Maximum water velocity: 2.5 m/s
Maximum sample depth: > 10 m
Product material: Steel, other material
Rod or cable operated: Cable
Sample stored in: Bottle
Sample volume: 100 ml
Package size: 120 x 94 x 50 cm
Weight: 93 kg
Description
The suspended load sampler Delft bottle is used to measure suspended sediment transport in rivers and other water courses, from the surface down to 0.1 metres above the river bottom. The water containing sediment flows through a bottle shaped collector. The shape induces a low pressure at the rear part of the device, so the water enters the nozzle of the sampler with almost the same velocity as the undisturbed flow.
When the water reaches the wide sampling chamber, the velocity decreases and this causes the sediment material to settle. The sampler is made with a sturdy construction. Because of the weight of the instrument, a davit with depth gauge and winch is required for handling. Please note that simultaneous measurement of the water speed is necessary.
The suspended load sampler is easy to use. The sampler can be used in two ways:
With no frame, suspended on a cable for all depths from the surface to 0.5 metres above the bottom. A tail fin keeps the nozzle in up-stream direction
With frame, standing on the bottom, the height can be set to 10, 20, 30, 40 and 50 centimetres from the bottom.
Set contains
Delft bottle sampler
Nozzle 1.9 cm², straight
Nozzle 1.9 cm², bended
Nozzle 3.8 cm², straight
Nozzle 3.8 cm², bended
Measuring glass, content 100 millilitres
Frame for Delf bottle, for use bottom placement
Wooden case for Delft bottle
