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MP Filtri ACMU User Manual

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ACMU
User Guide
www.mpfiltri.co.uk
200.189-EN

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Summary of Contents for MP Filtri ACMU

  • Page 1 ACMU User Guide www.mpfiltri.co.uk 200.189-EN...
  • Page 2 Installation, servicing and adjustment is only to be performed by qualified personnel. To secure optimum efficiency from your ACMU, we recommend that you read and follow the instructions set out in this manual. Do not tamper with this device.

  • Page 3: Table Of Contents

    Contents Introduction Variants • • • Product Map "C-Version" Installation dimensions "C-version" Product • Map "P-Version" Installation dimensions "P-version" Materials of Construction Operating Procedures • • • • Mounting/Fixing Hydraulics Motor Wiring Communication • wiring "C-version" Communication wiring "P-version" Safety precautions Fault Finding Measuring Water in Hydraulic and Lubricating Fluids...
  • Page 4 Hydraulic System Target Cleanliness Levels New ISO Medium Test Dust and its effect on ISO Contamination Control Standards • • • • Calibration New Test Dust Benefits Effect on Industry Correlation • Other Standards Clean working practises...

  • Page 5: Introduction

    MP Filtri UK’s ACMU combines technology to enable sampling on low pressure hydraulic and lubrication systems where aeration can be an issue. The ACMU suppresses the air bubbles so they are no longer counted as particles. The ACMU can be installed in most low pressure hydraulic and lu-...
  • Page 6 1 Designed with you in mind... The ACMU is configured deliberately to provide customers the ver- satility they require for existing systems or those in development. The in-built motor/pump assembly and automatic monitoring prod- uct (ICM) can be wired directly, allowing control through a wide range of communication protocol and logic controllers.

  • Page 7: Variants

    2 Variants The ACMU comes ready assembled. It consists of a hydraulic gear pump fitted to an electric motor by means of a flexible coupling and bell housing. The pump/ motor is bolted to a frame assembly in one of the two variants described.
  • Page 8 Figure 1 Product map "C-version" Variants...
  • Page 9 2.2 Installation dimensions "C-version" Figure 2 Dimensions for "C-version" 2.3 Product Map "P-Version" Similar to the cabinet product, the "P-version" does not benefit from the same level of protection, interaction and USBi functionality. It is however... • Lighter weighing only 13kg •...
  • Page 10 Figure 3 Product map for "P-version" Variants...
  • Page 11 2.4 Installation dimensions "P-version" Figure 4 Dimensions for "P-version" Variants...

  • Page 12: Materials Of Construction

    3 Materials of Construction Wetted parts for both C and P units: − Brass − Stainless Steel − Aluminium "C-version" case: − Polyvinyl paint − Steel − Polyester Materials of Construction...

  • Page 13: Operating Procedures

    − Protect the ACMU against corrosion or aggressive environ- ments if necessary. 4.2 Hydraulics − The inlet of the ACMU is the suction side of the pump, it is a 1/4"BSP inlet (also supplied with 1/4BSP to 7/16th JIC adaptor).
  • Page 14 4.3 Motor Wiring Ensure that a qualified electrician carry out the electric installa- tion of the ACMU. − Before installation, ensure that the electrical data of the elec- tric motor corresponds with the data of the local electrical supply.
  • Page 15 − Ensure that the electric motor rotates in accordance with the arrow on the electric motor. Wiring Diagram for Electric Motor Description Visual 3 Phase motor Not connected Υ -star Δ -triangle Operating Procedures...
  • Page 16 Description Visual 1 Phase motor Not connected Left rotation Right rotation Technical Details E-motors 3 phase 50Hz Description Voltage Δ/Υ Nominal Current RPM Setting mot. protection 0.18kW 230/400 VAC 1.03 A/ 0.60 A 1345 Nominal Current 0.18kW 200/400 VAC 1.03 A/ 0.60 A 1345 Nominal Current 0.29kW...
  • Page 17 3 phase 60Hz Description Voltage Δ/Υ Nominal Current RPM Setting mot. protection 0.21kW 265/460 VAC 1.04 A/ 0.60 A 1650 Nominal Current 0.18kW 200/340 VAC 1.06 A/ 0.62 A 1575 Nominal Current 0.33kW 265/460 VAC 1.65 A/ 0.95 A 1585 Nominal Current 0.37kW 200/346 VAC 1.85 A/ 1.08 A...
  • Page 18 4.4 Communication wiring "C-version" Figure 1 Wiring diagram for "C-version" For further information on communications and wiring please refer to the supplied CD containing relevant user guides. Operating Procedures...
  • Page 19 4.5 Communication wiring "P-version" Figure 2 Wiring diagram for "P-version" Operating Procedures...

  • Page 20: Safety Precautions

    51524, 51525. Do not operate with other fluids without the consent of MP Filtri UK. 2 Dangers by electricity All work on the electrical equipment of the ACMU must be carried out by a qualified electrician. Check the electrical equipment of the ACMU regularly. Rectify any faults immediately.

  • Page 21: Fault Finding

    6 Fault Finding FAULT CHECK No oil flow Check rotation of electric motor, if incorrect change the electrical connection. Pump is not drawing fluid, pre-fill the suction hose with oil and start again. Electric motor keeps Check local grid with motor identification plate. tripping Check motor protection switch for setting and ad- just according to electric motor identification la-...
  • Page 22 Airlock at start up Vent the system. Open the measuring point or the valve shown in the figure below. Make sure the suction hose is filled with oil be- fore start up. The return line must be connected to the applica- tion reservoir (pressure-less).

  • Page 23: Measuring Water In Hydraulic And Lubricating Fluids

    Appendix A Measuring Water in Hydraulic and Lubricating Fluids From North Notts Fluid Power Centre In mineral oils and non aqueous fire resistant fluids water is undesirable. Min- eral oil usually has a water content of 50-300 ppm which it can support with- out adverse consequences.
  • Page 24 Appendix A Typical Water Saturation Levels For New Oils Figure I Examples: Hydraulic oil @ 30°C = 200ppm = 100% saturation Hydraulic oil @ 65°C = 500ppm = 100% saturation Measuring Water Content...

  • Page 25: Iso4406:1999 Cleanliness Code System

    Appendix B ISO4406:1999 Cleanliness Code System The International Standards Orga- nization standard ISO 4406:1999 is the preferred method of quoting the number of solid contaminant par- ticles in a sample. The code is constructed from the combination of three scale numbers selected from the following table.
  • Page 26 Appendix B Microscope counting examines the particles differently to APCs and the code is given with two scale numbers only. These are at 5 µm and 15 µm equivalent to the 6 µm(c) and 14 µm(c) of the APCs. ISO4406:1999 Cleanliness Code System...

  • Page 27: Nas1638 Cleanliness Code System

    ACMU software. Figure I CONTAMINATION LEVEL CLASSES according to NAS1638 (January 1964).

  • Page 28: Sae As4059 Rev.e Cleanliness Classification For Hydraulic Fluids

    Contamination Limits (Particles/100ml) of differential and cumula- tive particle counts respectively for counts obtained by an automatic particle counter, e.g. ACMU. The information reproduced on this and the previous page is a brief extract from SAE AS4059 Rev.E, revised in May 2005. For further details and explanations refer to the full Standard.
  • Page 29 Appendix D Size range μm(c): 6 - 14 14 - 21 21 - 38 38 - 70 >70 Class 1,000 2,000 4,000 8,000 1,425 16,000 2,850 32,000 5.700 1,012 64,000 11,400 2,025 128,000 22,800 4,050 256,000 45,600 8,100 1,440 512,000 91,200 16,200 2,880...
  • Page 30 Appendix D Size μm(c) >4 >6 >14 >21 >38 >70 Size Code Classes 1,560 3,120 1,217 6,250 2,432 12,500 4,864 25,000 9,731 1,731 50,000 19,462 3,462 100,000 38,924 6,924 1,224 200,000 77,849 13,849 2,449 400,000 155,698 27,698 4,898 800,000 311,396 55,396 9,796 1,696 11 1,600,000...

  • Page 31: E Recommendations

    Appendix E Recommendations Unit Type ISO 4406:1999 Code PUMP Piston (slow speed, in-line) 22/20/16 Piston (high speed, variable) 17/15/13 Gear 19/17/15 Vane 18/16/14 MOTOR Axial piston 18/16/13 Radial piston 19/17/13 Gear 20/18/15 Vane 19/17/14 VALVE Directional (solenoid) 20/18/15 Pressure control (modulating) 19/17/14 Flow control 19/17/14 Check valve...
  • Page 32 Appendix E fluids which are cleaner than those stated will increase life. However, the di- versity of hydraulic systems in terms of pressure, duty cycles, environments, lubrication required, contaminant types, etc, makes it almost impossible to predict the components service life over and above that which can be rea- sonably expected.
  • Page 33 Appendix F Hydraulic System Target Cleanliness Levels Where a hydraulic system user has been able to check cleanliness levels over a considerable period, the acceptability, or otherwise, of those levels can be verified. Thus if no failures have occurred, the average level measured may well be one which could be made a bench mark.
  • Page 34 Appendix F Contamination Corresponding Recommended Typical Codes Codes Filtration Applications ISO 4406:1999 NAS 1638 Degree Bx200 μm(c) μm(c) μm(c) High precision and laboratory servo-sys- tems Robotic and servo-systems 10-12 Very sensitive - high reliability systems 12-15 Sensitive - reliable systems 15-25 General equipment of limited reliability...
  • Page 35 Appendix G New ISO Medium Test Dust and its effect on ISO Contamination Control Standards When General Motors gave advance warning to the International Standards Organization (ISO) that it was intending to stop the production of AC Fine Test Dust (ACFTD), work commenced immediately on finding an improved replacement dust.
  • Page 36 Appendix G ISO therefore defined the requirements for the replacement for ACFTD and asked the National Institute of Standards and Technology (NIST) in the USA to produce a standard, traceable reference material. The new dust’s parti- cle size distribution has been accurately determined with the aid of modern scanning electron microscope and image analysis techniques.
  • Page 37 Appendix G The standards affected include: ISO 4402:1991 Hydraulic fluid power Calibration of liquid automatic particle counters. ISO 4406:1987 Hydraulic fluid power Code for defining the level of contamination by solid par- ticles. ISO 4572:1981 Hydraulic fluid power – Filters Multi-pass method for evaluating filtration performance of a filter element.
  • Page 38 The following charts shows the correlation between the old ACFTD and the new ISO MTD. The ACMU is calibrated with ISO Medium Test Dust (to ISO 11171). The correlation between particle sizes and the ACFTD (old standard) to the ISO MTD (new standard) is as follows : ACFTD <1 5 15 25 30 50...
  • Page 39 Appendix G Particle Size Obtained Using Correlation ACFTD ISO/NIST (ISO (ISO 11171) 4402:1991) The table shows the correla- µm µm(c) tion between Particle Sizes Obtained using ACFTD (ISO 4402:1991) and NIST (ISO 11171) Calibration Methods This table is only a guideline. 10.6 11.3 The exact relationship between...
  • Page 40 Appendix G Other Standards Although the ISO 4406:1999 standard is being used extensively within the hydraulics industry other standards are occasionally required and a compar- ison may be requested. The following table gives a very general comparison but often no direct comparison is possible due to the different classes and sizes involved.
  • Page 41 Appendix G ISO 4406:1999 DEF.STD 05/42 [7] NAS 1638[5] SAE 749[8] Table A Table B ISO 11218[6] 13/11/08 14/12/09 15/13/10 16/14/09 400F 16/14/11 17/15/09 17/15/10 800F 17/15/12 18/16/10 18/16/11 1,300F 18/16/13 19/17/11 1,300 2000F 19/17/14 20/18/12 2,000 20/18/13 4,400F 20/18/15 21/19/13 4,400 6,300F...
  • Page 42 Appendix H Clean working practises The majority of hydraulic systems require cleanliness which controls below around a 40 micron threshold (beyond the limit of human eyesight). When analysing particles down to levels of 4um, 6um & 14um you are talking about objects of a cellular/bacterial size.
  • Page 43 Appendix H − Do perform a statistically large enough sample of particle analysis results ( 25) to arrive at a base cleanliness level for your system. − Do make sure that filters are correctly sized for your applications and cleanliness you are trying to achieve. Don’ts −...
  • Page 44 Appendix H Clean working practises...
  • Page 45 MP Filtri UK authorised affiliate. 5 How to obtain service? To obtain service under the terms of this warranty, the customer is required to notify MP Filtri UK before the expiration of the warranty period and to return...
  • Page 46 Should MP Filtri UK incur additional cost as a result of a failure to complete the appropriate paperwork, an administrative charge may be levied.
  • Page 47 − The product is damaged in transit and a contributory cause is inadequate packaging. It is the customer’s responsibility to ensure that the packaging used to return equipment to MP Filtri UK is the same, or has equivalent protective qualities, to that used to ship the product to the customer in the first instance.
  • Page 49 Produced by MP Filtri UK Revision 1.2 As a policy of continual improvement, MP Filtri UK reserve the right to alter specifi- cations without prior notice. Except as permitted by such licence, no part of this publication may be reproduced, stored in retrieval system or transmitted, in any form or any means, electronic, me- chanical, recording, or otherwise, without prior written permission of MP Filtri UK.

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