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Related Manuals for Michell Instruments Easidew I.S.
Summary of Contents for Michell Instruments Easidew I.S.
- Page 1 Easidew I.S. Dew-Point Transmitter User Manual 97099 Issue 16.2 July 2021...
- 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. Transmitter Code Serial Number Invoice Date Location of Instrument Tag Number Transmitter Code Serial Number Invoice Date...
- Page 3 © 2021 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.
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Page 4: Table Of Contents
Easidew I.S. User Manual Contents Safety ..........................vi Electrical Safety ......................vi Pressure Safety ......................vi Toxic Materials ......................vi Repair and Maintenance ....................vi Calibration ........................vi Safety Conformity ......................vi Abbreviations ........................vii Warnings ...........................vii INTRODUCTION ....................VIII Features ......................viii INSTALLATION ....................1 Unpacking the Instrument ................... 1 Preparation of the Sensor Cable ................ - Page 5 Transmitter Mounting - Pipe or Duct.............8 Figure 12 Transmitter Mounting with Adapter .............9 Figure 13 Installation Location .................10 Figure 14 Indication of Dead Space ................10 Figure 15 Material Permeability Comparison ..............11 Figure 16 Replacement of HDPE Guard ..............14 Figure 17 Dimensions .....................18 Michell Instruments...
- Page 6 Easidew I.S. User Manual Appendices Appendix A Technical Specifications ................13 Dimensions ................. 14 Appendix B System Drawings ..................16 Baseefa Approved System Drawing ..........16 FM Approved System Drawing ............17 CSA Approved System Drawing ............. 18 Appendix C Hazardous Area Certification ..............
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Page 7: Safety
The instrument should be returned to the manufacturer, Michell Instruments Ltd., or one of their accredited service agents for re-calibration. Safety Conformity This product meets the essential protection requirements of the relevant EU and US standards and directives. -
Page 8: Abbreviations
Easidew I.S. User Manual Abbreviations The following abbreviations are used in this manual: barg pressure unit (=100 kP or 0.987 atm) (bar gauge) °C degrees Celsius °F degrees Fahrenheit direct current dew point feet per second ft-lbs feet per pounds grams lbs/in pounds per inch... -
Page 9: Introduction
If, after reading this manual, there are any questions about the instrument or how to install and operate it, please contact a Michell representative. Refer to www.michell.com for details of Michell Instruments’ worldwide offices contact information. -
Page 10: Installation
Easidew I.S. User Manual INSTALLATION INSTALLATION Unpacking the Transmitter On removing the transmitter from the box, please check that all the following standard components are included: • Easidew Transmitter • Certificate of Calibration • Electrical Connector (DIN 43650 models only) Figure 1 DIN43650 Transmitter Unpacking Method The Transmitter will also be supplied with a process seal, which will be fitted to the... -
Page 11: Preparation Of The Sensor Cable
Preparation of the Sensor Cable The sensor cable is NOT supplied as standard. A cable can be obtained by contacting your local distributor or Michell Instruments (see www.michell.com for details). The crimps supplied must be fitted onto any cable installed into the connector in order to comply with Hazardous Area Certification of the product. -
Page 12: Figure 5 Cut To 5Mm
Note: The drawing below shows the identity of the connector terminals and wiring connections of the cable manufactured by Michell Instruments. GREEN - 4-20 mA RED + POWER... -
Page 13: Cable Connection
TRANSMITTER VERSION 4-20 mA LOAD KFD0-CS-Ex2.50p TERMINAL NUMBER DEW-POINT EASIDEW I.S. KFD2-CR-Ex1.20200 TRANSMITTER KFD2-CR-Ex1.30200 CERTIFICATION No’s: +VS (20 - 35 V DC) KFD0-CS-Ex1.50P Baseefa06ATEX0330X (RETURN) VS - IECEx BAS 06.0090X MTL5041 MTL5040 MTL5541 Electrical Connections Figure 9 Michell Instruments... -
Page 14: Transmitter Mounting
Easidew I.S. User Manual INSTALLATION Transmitter Mounting Prior to installation of the transmitter, unscrew and remove the black, green or blue plastic cover and retain for future use. Take care to prevent any contamination of the sensor before installation (handle the transmitter by the main body only, avoiding contact with the sensor guard). -
Page 15: Transmitter Mounting - Sample Block (Optional)
(see Section 2.5). NOTE: Use the flats of the hexagonal nut and not the sensor body. Fit the transmitter cable/connector assembly to the plug located on the base of the transmitter and tighten the fixing screw (see Section 2.3). Figure 10 Transmitter Mounting Michell Instruments... -
Page 16: Transmitter Mounting - Direct Pipeline Connection
Easidew I.S. User Manual INSTALLATION 2.5.2 Transmitter Mounting - Direct Pipeline Connection The transmitter may be directly mounted into a pipe or duct as shown in Figure 13. Caution: Do not mount the transmitter too close to the bottom of a bend where any condensate in the pipeline might collect and saturate the probe. -
Page 17: Transmitter Mounting - With Additional Process Connection Adapter
3/4” - 16 UNF ` 40 Nm (29.5 ft-lbs) 1/2” NPT Use a suitable sealant e.g. PTFE tape using correct taping procedures NOTE: Use the flats of the hexagonal nut and not the sensor body. Transmitter Mounting with Adapter Figure 12 Michell Instruments... -
Page 18: Operation
For more demanding applications Michell Instruments offers a range of sampling systems (for more information contact www.michell.com). -
Page 19: Good Measurement Practice
Take into consideration the gas you are measuring, and then choose materials appropriate to the results you need. The effects of diffusion or moisture trapped in materials are more significant when measuring very dry gases than when measuring a sample with a high level of humidity. Michell Instruments... - Page 20 Easidew I.S. User Manual GOOD MEASUREMENT PRACTICE Temperature and Pressure effects As the temperature or pressure of the environment fluctuates, water molecules are adsorbed and desorbed from the internal surfaces of the sample tubing, causing small fluctuations in the measured dew point. Adsorption is the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to the surface of a material, creating a film.
- Page 21 For protection against liquids, a coalescing or membrane filter should be used. The membrane provides protection from liquid droplets and can even stop flow to the analyser completely when a large slug of liquid is encountered, saving the sensor from potentially irreparable damage. Michell Instruments...
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Page 22: Maintenance
Physical Laboratory (NPL) and the US National Institute of Standards and Technology (NIST) are provided by Michell Instruments. Michell Instruments offers a variety of re-calibration and service exchange schemes to suit specific needs. A Michell representative can provide detailed, custom advice (refer to www.michell.com for details of Michell Instruments’... -
Page 23: O-Ring Replacement
O-Ring Replacement If the installed O-ring gets damaged or lost, a pack of 5 replacement O-rings (3/4- OR (for 3/4” - 16 UNF)) can be obtained by contacting Michell Instruments, or your local distributor. Do not touch the filter with bare hands Identify the O-ring to be removed, as shown below. -
Page 24: Appendix A Technical Specifications
Easidew I.S. User Manual APPENDIX A Appendix A Technical Specifications 97099 Issue 16.2, July 2021... -
Page 25: Dimensions
Material - 316 stainless steel Weight 150g (5.29oz) Interchangeability Fully interchangeable transmitter Electrical Connection Hirschmann GDS series (DIN 4350-C) Condition Output Diagnostic Conditions Sensor fault 23 mA (factory programmed) Under-range dew point 4 mA Over-range dew point 20 mA Michell Instruments... - Page 26 Easidew I.S. User Manual APPENDIX A KFD2-CR-EX1.20200 KFD0-CS-EX2.50P Approved Galvanic KFD2-CR-EX1.30200 KFD2-STC4-EX1.H Isolators KFD0-CS-EX1.50P MTL5041, MTL5040 Hazardous Area Certification Certification Codes * See Appendix C * The end user has a responsibility to ensure that when installed in the Hazardous Area, the system is compliant with relevant local and international installation Standards for the use of equipment in explosive atmospheres.
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Page 27: Appendix B System Drawings
Easidew I.S. User Manual APPENDIX B Appendix B System Drawings Michell Instruments... -
Page 28: Baseefa Approved System Drawing
Easidew I.S. User Manual APPENDIX B Appendix B System Drawings Baseefa Approved System Drawing 97099 Issue 16.2, July 2021... -
Page 29: Fm Approved System Drawing
Easidew I.S. User Manual APPENDIX B FM Approved System Drawing Michell Instruments... -
Page 30: Csa Approved System Drawing
Easidew I.S. User Manual APPENDIX B CSA Approved System Drawing 97099 Issue 16.2, July 2021... -
Page 31: Appendix C Hazardous Area Certification
Easidew I.S. User Manual APPENDIX C Appendix C Hazardous Area Certification Michell Instruments... -
Page 32: Product Standards
Easidew I.S. User Manual APPENDIX C Appendix C Hazardous Area Certification The Easidew I.S is certified compliant to the ATEX Directive (2014/34/EU), and IECEx for use within Zone 0, 1 and 2 hazardous areas and has been assessed so by SGS FIMKO Oy, FINLAND (Notified Body 0598). -
Page 33: Special Conditions Of Use
The Easidew I.S. must only be installed by suitably qualified personnel and in accordance with the instructions provided and the terms of the applicable product certificates. Maintenance and servicing of the product must only be carried out by suitably trained personnel or returned to an approved Michell Instruments’ Service Center. Michell Instruments... -
Page 34: Appendix D Quality, Recycling & Warranty Information
Easidew I.S. User Manual APPENDIX D Appendix D Quality, Recycling & Warranty Information 97099 Issue 16.2, July 2021... - Page 35 Easidew I.S. User Manual APPENDIX D Appendix D Quality, Recycling & Warranty Information Michell Instruments is dedicated to complying to all relevant legislation and directives. Full information can be found on our website at: www.michell.com/compliance This page contains information on the following directives: •...
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Page 36: Appendix E Return Document & Decontamination Declaration
Easidew I.S. User Manual APPENDIX E Appendix E Return Document & Decontamination Declaration 97099 Issue 16.2, July 2021... - Page 37 Has the equipment been cleaned and decontaminated? NOT NECESSARY Michell Instruments will not accept instruments that have been exposed to toxins, radio-activity or bio-hazardous materials. For most applications involving solvents, acidic, basic, flammable or toxic gases a simple purge with dry gas (dew point <-30°C) over 24 hours should be sufficient to decontaminate the unit prior to return.
- Page 38 www.ProcessSensing.com http://www.michell.com...
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