CMS/User Guide - Filterteknik

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Appendix BMicroscope counting examines theparticles differently to APCs andthe code is given with two scalenumbers only. These are at 5 µmand 15 µm equivalent to the 6µm(c) and 14 µm(c) of the APCs.64 ISO4406:1999 Cleanliness Code System
NAS1638 Cleanliness Code SystemAppendix CThe NAS system was originally developed in 1964 to define contaminationclasses for the contamination contained within aircraft components. The applicationof this standard was extended to industrial hydraulic systems simplybecause nothing else existed at the time. The coding system defines the maximumnumbers permitted of 100ml volume at various size intervals (differentialcounts) rather than using cumulative counts as in ISO 4406:1999. Althoughthere is no guidance given in the standard on how to quote the levels,most industrial users quote a single code which is the highest recorded in allsizes and this convention is used on the <strong>CMS</strong> software.Figure C.ICONTAMINATION LEVEL CLASSESaccording to NAS1638 (January 1964).The contamination classes are defined by a number (from 00 to 12) whichindicates the maximum number of particles per 100 ml, counted on a differentialbasis, in a given size bracket.NAS1638 Cleanliness Code System 65
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CMSContamination Monitoring System
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Contents1 Introduction 7•Operatin
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E Recommendations 69F Hydraulic Sys
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2 How to OrderExample: CMS - W M K
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It comprises a USB:RS485 interface
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Moisture &TemperatureMeasurementDat
Page 14 and 15: 4 Status LEDAll CMS versions have a
Page 16 and 17: 5 Front Panel Operation5.1 Result D
Page 18 and 19: SimpleDetailedFigure 5.4 AS4059E Ta
Page 20 and 21: 6 Water SensorCMS-W models measure
Page 22 and 23: 7 Data LoggerThe CMS includes a bui
Page 24 and 25: 9 USBi Optional Computer USBInterfa
Page 26 and 27: is separately available as a pre-wi
Page 28 and 29: 11 PC Software OperationThe Remote
Page 30 and 31: 12 SettingsThe CMS can be reconfigu
Page 32 and 33: The factory set value of 2 minutes
Page 34 and 35: large particles in the system. When
Page 36 and 37: NAS1638 can be used by selecting th
Page 38 and 39: This allows the CMS to switch exter
Page 40 and 41: Turns on When Test Complete ≤Lowe
Page 42 and 43: • If there is no suitable differe
Page 44 and 45: 14.1 DC PowerDC power is connected
Page 46 and 47: supplies can be used to power each
Page 48 and 49: Other ways to start a test are:•
Page 50 and 51: 15.1 Flow Rate15.1.1 SummaryFor the
Page 52 and 53: • See the figures at the start of
Page 54 and 55: 15.3 Active Flow ControlThis is onl
Page 56 and 57: allows a system to remotely monitor
Page 58 and 59: 17 Cycle Time and Flow RateConsider
Page 60 and 61: 18 Modbus ProgrammingThe CMS can be
Page 62 and 63: Appendix ATypical Water Saturation
Page 66 and 67: Appendix DSAE AS4059 REV.E Cleanlin
Page 68 and 69: Appendix DSize μm(c) >4 >6 >14 >21
Page 70 and 71: Appendix Efluids which are cleaner
Page 72 and 73: Appendix FContamination Correspondi
Page 74 and 75: Appendix GISO therefore defined the
Page 76 and 77: Appendix GTo clarify matters still
Page 78 and 79: Appendix Gbut often no direct compa
Page 80: Appendix G80 New ISO Medium Test Du
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