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On these operating instructions

If the text follows a mark (as shown on the left), this means that an important instruction
follows.

If the text follows a mark (as shown on the left), this means that an important warning
follows relating to danger to the user or damage to the apparatus.The user is always
responsible for its own personal protection.

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Description

With the rainfall simulator, one measures the runoff and soil loss generated by a standardised rainshower on a
plot with standard surface area. The duration, intensity and kinetic energy of the shower are such that a high
sensitivity of the test results for differences in soil properties is obtained.

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Rainfall simulator

Essentially the rainfall simulator consists of three parts (see figure page 1):

A sprinkler (A) with a built-in pressure regulator for the production of the standard rain shower.

An adjustable support (B) for the sprinkler.

An aluminium ground frame (C), which is placed on the soil and prevents the lateral movement of water

from the test plot to the surrounding soil.

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Summary of Contents for 09.06

Page 1: ...2 1 Description 2 1 1 Rainfall simulator 2 1 2 Accessories 3 2 Technical specifications 4 3 Safety instructions 4 4 Calibration 4 5 Installation 6 6 The use 6 7 Application 6 8 Troubleshooting 6 9 Mai...

Page 2: ...by a standardised rainshower on a plot with standard surface area The duration intensity and kinetic energy of the shower are such that a high sensitivity of the test results for differences in soil...

Page 3: ...d levelling the sprinkler Two levels 16 and four knobs 18 are used to level the support B on which the sprinkler is placed The stainless steel adjustable legs 17 are positioned on the ground frame C G...

Page 4: ...check if all capillaries are clear and to calibrate the sprinkler before use on the plot field Follow the next procedure A plot can only be used once Therefore do not calibrate or test the sprinkler...

Page 5: ...C the water has a lower viscosity so therefore the pipe must be placed a little bit lower At the Wageningen University and Research Centre they tested with the following results Water temp Shower h 1...

Page 6: ...e aeration pipe 2 starts the simulation Start the stopwatch 6 During the simulation move the sprinkling head sideways in all horizontal directions to make sure that the drops emerging from the capilla...

Page 7: ...r part Replace the sealing Reassemble the sprinkler using the eight screws 12 For replacing sealing 6 remove the eight screws 13 and the assembled sprinkler part Replace the sealing Reassemble the spr...

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