Emriver Em2, Use And Care Manual

Page 1: ...model Using more than the maximum amount of water and sediment could cause the box or supports to collapse Never use more than the provided 150 lb 68 kg of sediment in the box and do not place any hea...

Page 2: ...2 2012 Little River Research Design updated July 2018 This page was intentionally left blank...

Page 3: ...klist 6 Assembly and Operation 7 Setup checklist 21 Disassembly Transport and Storage 22 Maintenance and Care 23 Demonstrations and Experiments 24 Specifications 26 All contents copyrighted 2012 Littl...

Page 4: ...water and could be dangerous if not properly supported assembled and operated Therefore it is important that you read understand and abide by all the instructions and warnings in this manual to avoid...

Page 5: ...Introduction 2012 Little River Research Design updated July 2018 5 Figure 2 Power supply included with the Emriver Em2 model shown attached to the downstream support...

Page 6: ...vegetation Scrapers for moving media Blue and green dye Paper towels and mop Shim materials Hand level Plastic buckets for sediment and water Garden hose Scraper trowel Notebook Household bleach Smal...

Page 7: ...Figure 3 The supports must be both level and parallel The supports should be set up so that the crossbars are 49 in 1 25 m apart and aligned as shown in Figure 3 to prevent damage to the box Figure 3...

Page 8: ...his opening lies at the downstream end The Emriver supports have a difference in height of about 3 in 76 mm yielding a box slope of 6 The slope of channels in the box will be determined by the positio...

Page 9: ...d last for many uses As needed apply a small amount to restore smooth movement This silicone grease may be found at most hardware stores and is typically used for waterproofing electronics and o rings...

Page 10: ...be supported at the two reinforced ribs and nowhere else See Figure 6 Figure 6 Support ribs on the underside of the box indicated with arrows are areas where the box must be supported CAUTION The supp...

Page 11: ...on them Note Gaps of more than 0 25 in 6 mm between the box s support ribs and the support crossbars indicate that the supports are NOT properly aligned Figure 7 Lift the box onto the supports It is...

Page 12: ...r beneath the support at the downstream end STEP 5 Position the pump Attach one end of the tubing onto the arm of the pump Place the pump lying on its side in the bottom of the reservoir keeping the w...

Page 13: ...l 102 L of water WARNING Using more than 27 gal 102 L of water could damage the box or cause it to collapse Do not exceed this volume and do not start the pump until you have filled the reservoir and...

Page 14: ...Figure 13 The outlet should snap into place Figure 13 Align the mushroom fasteners on the flow outlet with those on the inside of the box at the upstream end Snap the fasteners together to secure the...

Page 15: ...the box STEP 9 Position the Energy Dissipater Unit Place the Energy Dissipater Unit EDU beneath the flow outlet The flow outlet opening should line up with the innermost cylinder of the EDU The EDU s...

Page 16: ...te in the sediment trap The rate at which the sediment trap fills is highly variable depending on activity in the box When the sediment trap becomes full use the perforated scoop included with the Emr...

Page 17: ...ck power supply to the leg of the downstream support Connect the power cord to the Ground Fault Circuit Interrupter GFCI US users only If you are using an extension cord connect the extension cord to...

Page 18: ...roller to the downstream end of the box Connect the pump to the controller using the gray blue and orange connectors note there is one red tab that is not a connector Then connect the controller to th...

Page 19: ...n the circuit board round green light If it is lit check the connection between the controller and the pump Also check for any obstructions or clogged filters Expel all air from pump and hose If the f...

Page 20: ...r Em2 model has been assembled according to the instructions in this manual it is ready for use Figure 22 is a conceptual chart that shows flow pathways of water and electricity through a properly ass...

Page 21: ...an 0 25 in 6 mm between the support crossbars and the box support ribs 7 Place the reservoir under the standpipe and place the pump in the reservoir lying on its side Check the pump filter for fine de...

Page 22: ...remaining water must be drained from the sediment This water can take several hours to drain Pile the media at the upstream end of the box to aid drainage You can also remove the standpipe to speed al...

Page 23: ...ler after each use by disconnecting the pump from the controller and disconnecting the controller from the power supply Do not use solvents which may dissolve or weaken the plastic tubing If the tubin...

Page 24: ...ser level can be used to explore the relative elevations of the upper end of the channel and the standpipe The modeling media is manufactured within a range of specifications and its specific gravity...

Page 25: ...e realistic characteristics Remember that your modeled channels should be in a near equilibrium condition in order to show the effects of disturbances The guidelines and videos at the following places...

Page 26: ...t particle size 0 02 0 09 in 0 5 2 1 mm Box box weight approx 38 lb 17 5 kg box dimensions 77 x 33 x 5 inches 1 96 x 0 83 x 0 13 m Reservoir water capacity 27 gal 102 L Pump pump capacity 12V DC marin...