Michell Instruments MDM300 I.S. Manual

Michell Instruments MDM300 I.S. Manual

Advanced dew-point hygrometer sensor & battery replacement
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MDM300 I.S.
Advanced Dew-Point Hygrometer
Sensor & Battery Replacement Manual
97469 Issue 1
October 2014

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Summary of Contents for Michell Instruments MDM300 I.S.

  • Page 1 MDM300 I.S. Advanced Dew-Point Hygrometer Sensor & Battery Replacement Manual 97469 Issue 1 October 2014...
  • Page 2 Please fill out the form(s) below for each instrument that has been purchased. Use this information when contacting Michell Instruments for service purposes. Instrument Code Serial Number Invoice Date Location of Instrument Tag No Instrument Code Serial Number Invoice Date...
  • Page 3 © 2014 Michell Instruments This document is the property of Michell Instruments Ltd. and may not be copied or otherwise reproduced, communicated in any way to third parties, nor stored in any Data Processing System without the express written authorization of Michell Instruments Ltd.
  • Page 4: Table Of Contents

    MDM300 I.S. Sensor & Battery Replacement Manual Contents Safety ..........................v Electrical Safety ......................v Pressure Safety ......................v Toxic Materials ......................v Repair and Maintenance ....................v Calibration ........................v Safety Conformity ......................v Abbreviations ........................vi Warnings ..........................vi MAINTENANCE ....................1 Routine Maintenance ..................
  • Page 5: Safety

    The recommended calibration interval for this instrument is 12 months. The instrument should be returned to the manufacturer, Michell Instruments Ltd., or one of their accredited service agents for re-calibration. Alternatively a freshly calibrated exchange sensor can be purchased and easily fitted, see Section 1.2.3.
  • Page 6: Abbreviations

    MDM300 I.S. Sensor & Battery Replacement Manual Abbreviations The following abbreviations are used in this manual: alternating current pressure unit (=100 kP or 0.987 atm) (gauge) Hertz psig pound(s) per square inch (gauge) Volts Warnings The following general warnings listed below are applicable to this instrument. They are repeated in the text in the appropriate locations.
  • Page 7: Maintenance

    Using an Allen key, sequentially remove the five cap screws (1) and washers (2) (see Figure 1) . Figure 1 Remove Case-Securing Bolts Michell Instruments Fig 5.1_V4_Remove Screws...
  • Page 8: Close Casing

    MDM300 I.S. Sensor & Battery Replacement Manual MAINTENANCE Open the two halves of the casing. NOTE: There is a seal between the two halves so the top and bottom halves may need to be eased apart. There should also be an O-ring (see Figure 2 , (5)) on each of the five pillars - keep these safe for later use.
  • Page 9: Internal Sensor Removal And Replacement

    4. Re-fit the connectors (3), (4) and (5). The connectors are polarized and cannot be inserted incorrectly. Ensure that the connectors lock into position. 5. Close the casing as described in Section 1.2.2. 6. Switch on the instrument and check that it is operating satisfactorily. Michell Instruments...
  • Page 10: Battery Replacement

    8. Charge the battery, when necessary, as described in the User’s Manual. NOTE: No other parts of the MDM300 I.S. are user-servicable - please contact your Michell representative if further help is needed. Refer to www.michell.com for details of Michell Instruments’ worldwide offices contact information. Figure 4 Battery Replacement...
  • Page 11 MDM300 I.S. Sensor & Battery Replacement Manual APPENDIX A Appendix A Quality, Recycling & Warranty Information Michell Instruments...
  • Page 12: Appendix A Quality, Recycling & Warranty Information

    The directives’ aim is to reduce the impact that electronic devices have on the environment. Michell Instruments is in full compliance with the WEEE Directive and is registered with an approved recycler (Registration No. WEE/JB0235YW) and treats the requirement of the directive and the protection of the environment with the utmost importance.
  • Page 13: Rohs2 Compliance

    Equipment product sold into the EU market place as 22nd July 2017. However, the careful design policy of all Michell Instruments’ products continues to attain compliance in the shortest practical timescales and strives to ensure that less than 0.1% of total mass per product, of all non-compliant materials, appear within them.
  • Page 14: Reach Compliance

    Our continued review of the SVHC Candidate List and latest additions is to ensure we remain compliant. Michell Instruments maintains a hazardous material register in which MSDS data sheets are collated, and we will check that our suppliers will comply to REACH requirements for all materials and substances we use in the processes of our manufacturing.
  • Page 15: Return Policy

    MDM300 I.S. Sensor & Battery Replacement Manual APPENDIX A Return Policy If a Michell Instruments’ product malfunctions within the warranty period, the following procedure must be completed: Notify a Michell Instruments’ distributor, giving full details of the problem, the model variant and the serial number of the product.
  • Page 16 MDM300 I.S. Sensor & Battery Replacement Manual APPENDIX B Appendix B Return Document & Decontamination Declaration 97469 Issue 1, October 2014...
  • Page 17: Appendix B Return Document & Decontamination Declaration

    MDM300 I.S. Sensor & Battery Replacement Manual APPENDIX B Appendix B Return Document & Decontamination Declaration Michell Instruments...
  • Page 18 MDM300 I.S. Sensor & Battery Replacement Manual NOTES: 97469 Issue 1, October 2014...
  • Page 19 MDM300 I.S. Sensor & Battery Replacement Manual NOTES: Michell Instruments...
  • Page 20 http://www.michell.com...

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Mdm300

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