Michell Instruments PROMET EExd Installation, Operation & Maintenance Manual

Michell Instruments PROMET EExd Installation, Operation & Maintenance Manual

Process moisture analyzer sampling systems
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PROMET EExd
Process Moisture Analyzer Sampling
Systems
Installation, Operation &
Maintenance Manual
97095 Issue 03, August 2009
© 2006 Michell Instruments Ltd

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Summary of Contents for Michell Instruments PROMET EExd

  • Page 1 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual 97095 Issue 03, August 2009 © 2006 Michell Instruments Ltd...
  • Page 2 We are confident that the dew-point instrument you have purchased from Michell Instruments will meet your own exacting standards. © 2006 Michell Instruments Ltd...
  • Page 3: Table Of Contents

    CONTENTS CONTENTS ................................3 OVERVIEW ................................4 Manufacturing Quality ..........................8 INSTALLATION ..............................9 Gas Connections ............................11 Power Supply Connection ........................11 Output Wiring Connections ........................12 OPERATION ..............................14 Start-Up Procedure ..........................15 Shut-Down Procedure ..........................15 OPTIONS ................................16 Enclosure Heater Temperature Control ....................
  • Page 4: Overview

    ____________________________________________________________ OVERVIEW The PROMET EExd Sampling Systems are designed for continuous on-line measurement and monitoring of the moisture content of a hydrocarbon gas. The sampling systems can be located close to the process gas sample take-off point in a potentially explosive environment designated zone 1 hazardous area.
  • Page 5 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Sampling systems can be supplied in various configurations/options: Indoor (chassis panel mounted) Outdoor (304/316 stainless steel enclosure) 1 or 2 channels Standard operating pressure (69 barg (1000 psig))
  • Page 6 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Process Moisture Analyzer: (PROMET EExd): Provides measurement and output of moisture content of the sample gas (1 or 2 channels). Sample Flow Letdown Pressure Regulator(s)
  • Page 7 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Trace Moisture systems (FM1 for 1 channel): (FM2 for 2 channel): Allows the user to manually set and indicate the sample gas flowrate across the moisture analyzer dew point sensor.
  • Page 8: Manufacturing Quality

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Manufacturing Quality Your sampling system should reach you in perfect working condition. Michell Instruments are registered with the British Standards Institute for Quality Assurance to BS EN ISO 9001: 2000.
  • Page 9: Installation

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ INSTALLATION Sampling Systems are assembled onto a panel for indoor installations or in a stainless steel enclosure for outdoor installations. All are suitable for wall mounting.
  • Page 10 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ M10 MOUNTING HOLES M8 MOUNTING HOLES 3mm DOUBLE BIT LOCKS 1 CHANNEL PANEL 1 CHANNEL ENCLOSURE 1000 M10 MOUNTING HOLES M8 MOUNTING HOLES 3mm DOUBLE...
  • Page 11: Gas Connections

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Gas Connections Note: Ensure that the process sample gas supply line is well flushed through to clear any liquids and debris present prior to connection to the Sampling System.
  • Page 12: Output Wiring Connections

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Output Wiring Connections Cable entry into the sampling system enclosures is through a Ø20 mm clearance hole located in the base of the enclosure. A suitably sized cable gland should be used and if armoured cable is used then this should be terminated at this point.
  • Page 13 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ 2 Channel Version wiring connections are as follows: Terminal No. Output Channel 1 Process Alarm Relay NC Channel 1 Process Alarm Relay COM Channel 1 Process Alarm Relay NO...
  • Page 14: Operation

    OPERATION Operation of the PROMET EExd Sampling Systems should be carried out in conjunction with and referring to the PROMET EExd Process Moisture Analyzer Users Guide prior to commencing system start-up procedure. Before commencing the start up procedure it is essential to ensure the installation conforms to the correct Hazardous area and local plant standards.
  • Page 15: Start-Up Procedure

    FM4 for 2 channel) to indicate a gas flowrate of approximately 0.36 /h (6 L/min). Switch on the power to the PROMET EExd Process Moisture Analyzer using the PROMET EExd Power Isolator switch located on the „Power Circuits‟ junction box.
  • Page 16: Options

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ OPTIONS Enclosure Heater Temperature Control Sampling systems fitted within enclosures are temperature controlled to maintain a constant temperature environment of at least 10 o C above the highest envisaged dew point temperature independent of surrounding temperature variations.
  • Page 17: Trace Heated Sample Line

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Trace Heated Sample Line As an option a trace heated sample line can be supplied with sampling systems to ensure the sample gas temperature from the process take-off point to the analyzer is maintained at a constant temperature of at least 10 o C above the highest envisaged dew point temperature independent of surrounding temperature variations.
  • Page 18: Maintenance

    Maintenance of the PROMET EExd Process Moisture Analyzer Sampling System should be done in conjunction with the maintenance instructions of the PROMET EExd Process Moisture Analyzer Users Guide prior to commencing any maintenance.
  • Page 19: Particulate Filter Element Replacement

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ Isolate the sampling system from the gas supply in accordance with the System Shutdown Procedure. Unscrew and remove the filter bowl from the body of the filter (F3).
  • Page 20 PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ To replace the particulate filter element, proceed as follows: Isolate the sampling system from the gas supply in accordance with the System Shutdown Procedure.
  • Page 21: Technical Specification

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ TECHNICAL SPECIFICATION Gas Wetted Materials: 316L stainless steel with Viton soft parts. Sample Gas: Hydrocarbon/Natural Gas Sample Gas Pressure: Standard – 1 to 69 barg (1000psig) High pressure –...
  • Page 22: Appendix Acontact Details

    PROMET EExd Process Moisture Analyzer Sampling Systems Installation, Operation & Maintenance Manual and User Guide ____________________________________________________________ APPENDIX A CONTACT DETAILS For Customer Service, please feel free to contact us via our website: www.michell.com ____________________________________________________________ www.michell.com...

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