Related Manuals for EIJKELKAMP 0865
Summary of Contents for EIJKELKAMP 0865
- Page 1 Air permeameter User manual Meet the difference Royal Eijkelkamp +31 313 880 200 Nijverheidsstraat 9, 6987 EN info@eijkelkamp.com M-0865E Giesbeek, the Netherlands royaleijkelkamp.com © 2022-06...
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Page 2: Table Of Contents
Royal Eijkelkamp. Technical data can be amended without prior notification. Royal Eijkelkamp is not responsible for (personal) damage due to (improper) use of the product. Royal Eijkelkamp is interested in your reactions and remarks about its products and operating instructions. -
Page 3: On These Operating Instructions
This apparatus is rated for indoor lab locations only. Servicing should be performed by Eijkelkamp trained qualified personel only! Only original spare parts supplied by Eijkelkamp are allowed to service. In case of any doubt about functionality, always contact your supplier. -
Page 4: Product Description
Product description Introduction The air permeameter apparatus measures the permeability or conductance of an (undisturbed soil) sample. Air permeability is the property of the soil pore system that allows air to flow through. Generally the pore sizes and their connectivity determine whether a soil has high or low permeability. Air will flow easily through soil with large pores with good connectivity between them. -
Page 5: Technical Specifications
Technical specifications Item Range Accuracy Remarks external pressure regulator and dryer are Operating pressure max. 0.5 bar required Restricted air pressure scale 600 hPa 1.6% Sample pressure scale 15 hPa / cmH 0.1 hPa / cmH scale zero mechanism Temperature 0-60 ˚C restricted air temperature Flowmeter 1 range... - Page 6 1. Sample holder chamber 9. Sample holder 53/60 mm insert 2. Rubber seal sample holder 10. Rubber seal (flat) sample holder clamp ring insert Ø 100 mm 3. Sample holder insert 11. Rubber seal (flat) sample holder clamp ring insert Ø 53 mm 4.
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Page 7: Preparation (Unpacking, Etc.)
Preparation (unpacking, etc.) Remove all packaging materials, check for completeness and damages and report irregularities directly to your supplier. Tabel 1 Part list air permeameter (art. no. 0865) Quantity Description Art. no. Remarks Pressure hose 8x13 mm (max. 20 bar) length 10 m, with Euro quick... -
Page 8: Connecting The Air Pressure
Connecting the air pressure Clean, dry air must be available in the operating range of 0.5 bar. Maximum inlet pressure to the apparatus is for about 1 bar; supplied by a pressure pre-regulator (fig. 1). The precision regulator on the apparatus will restrict the pressure to the Work pressure: p = 0.5 bar needed operating pressure general 0-0.2 bar *. -
Page 9: Filling The Water Column Pressure Gauge
Filling the water column pressure gauge The water column pressure gauge is used to measure the air pressure difference across the sample. Fill the system using demineralised water preventing e.g. algae built up inside the system. An anti-bacterial addition can be added to the water e.g. Aqua-Stabil (supplied by Julabo labortechnik GMBH). Fig. -
Page 10: Operation Of The Apparatus
Operation of the apparatus Prepare the soil sample to the desired state i.e. soil moisture tension. See appendix 1: Laboratory sample preparation. The soil sample chamber can be used for 53, 60 and 103 mm (outer diameters) sample rings using the proper adaptors. -
Page 11: The Soil Sample Chamber For 53 And 60 Mm Samples
Fig. 7 Fixing the clamp ring using special ‘fast screwing nuts’ a. Fixing the clamp ring using special ‘fast screwing nuts’. The nuts can be shifted over the screw thread by tilting the nut. This is only possible while they are not fastened. b. -
Page 12: Starting The Measurement
Sample placement: Fig. 9 Sample placement of Ø53 or Ø60 mm sample rings. a. Place the sample into the removable sample holder insert. In case of a fragile sample, the sample holder can be taken out of the sample holder chamber to place the sample in vertical position, preventing the sample falling out of the sample ring. - Page 13 First read the left flow meter 60- 600 cm³/min (=0.06...0.6 l/min). Try to regulate the pressure in combination with an air flow in the range of 300...600 cm /min. If the reading is higher then 0.6 l/min, open the middle valve and close the left one. Read the middle flow meter range 0.2...2.0 l/min.
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Page 14: Theory Of Operation
Theory of operation The determination of the air permeability is required if quantified data and interpretation about the pore continuity and its dependency on the matric potential as well as the effect of mechanical stress application on e.g. anisotropy of pore structure are considered. The theory as well as the analysis of the obtained results are described in Hartge and Horn (2009). - Page 15 solid, liquid, and gaseous. A classification of the obtained results e.q. according to the German soil mapping system allow also a direct correlation with the soil strength properties and a direct measure to quantify the soil degradation status. Fig. 12 Change in air permeability of the examined soil types/ horizons due to different mechanical loads (unloaded, 70 kPa and 230 kPa: n = 8, 500 kPa and 1000 kPa: n = 3);...
- Page 16 (taken from Gebhardt et al. 2009). Literature: Gebhardt,S.,Fleige,H., Horn,R.2009; ‘Effect of compaction on pore functions of different soils’. Journal of Plant Nutrition and Soil Science. Eijkelkamp expresses her thanks to the scientific contributions of R.Horn, S.Gebhardt, H. Fleige and J.Rostek.
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Page 17: Appendix 1: Taking Soil Samples
Ring holders may be used to facilitate insertion, especially in the subsoil. After insertion to the desired depth, the rings are carefully dug out (e.g. using the spatula provided with the Eijkelkamp sample ring set), at some centimetres below the ring itself. The surplus of soil is reduced to a few millimetres, trimming it carefully with a fine iron saw, and the caps are placed on the ring for protection and to minimise evaporation losses. - Page 18 Field sampling (Fig. 15) Fig. 15 Various steps for field sampling. • Clear and prepare the soil surface to make sure representative samples can be taken. • Place 5 sample rings on the soil surface. • Place the sample tool over the sample ring. •...
- Page 19 • Optional weigh the sample for volumetric soil moisture content of the field capacity. • Bring the soil moisture matrix to a predetermined value (Eijkelkamp can supply the proper equipment for this (see Fig. 16). • Weigh the sample for volumetric soil moisture content.
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Page 20: Appendix 2: Calibration; Maintenance And Service
Appendix 2: Calibration; maintenance and service Specifications check Calibration of the flow meters can be checked using a calibration block i.e. sample blocks with a specified permeability. A reference pressure source can be used to check the reading of the pressure gauge. Calibration Ex factory the apparatus is completely checked for leakage and a calibration measurement is done with the delivered calibration block. - Page 21 * The intervals are only as indication and can be adapted based on local conditions and use. ** Please consult Royal Eijkelkamp for service contract proposals. Spare and maintenance parts Normally there are no spare parts needed, in case of questions please contact Royal Eijkelkamp.
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Page 22: Appendix 3: Problem Solving, Tips And Tricks
Appendix 3: Problem solving, tips and tricks Q The water manometer level reading is too high or to low. A Adjust the manometer scale by shifting it to the desired zero level. If out of range adjust the water level in the container using the plastic bottle with nozzle. -
Page 23: Appendix 4: Ec Declaration Of Conformity
Appendix 4: EC Declaration of Conformity The undersigned, representing the manufacturer Eijkelkamp Agrisearch Equipment BV (Royal Eijkelkamp) Nijverheidsstraat 9 6987 EN Giesbeek The Netherlands Herewith declare that the product: Type Air permeameter Art.nr. 0865 Function : apparatus for measuring the permeability or conductance of an undisturbed soil sample.
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