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Michell Instruments Condumax II Installation Operation & Maintenance

(class 1 division 1) hydrocarbon dew-point analyzer
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Condumax II
(Class 1 Division 1)
Hydrocarbon Dew-Point Analyzer
Sampling System
Installation, Operation & Maintenance Manual
97525, Issue 1
November 2016

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Summary of Contents for Michell Instruments Condumax II

  • Page 1 Condumax II (Class 1 Division 1) Hydrocarbon Dew-Point Analyzer Sampling System Installation, Operation & Maintenance Manual 97525, Issue 1 November 2016...
  • 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 © 2016 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

    Condumax II Sampling System - NEC Compatible IOM Manual Contents Safety ..........................vi Electrical Safety ......................vi Pressure Safety ......................vi Toxic Materials ......................vi Repair and Maintenance ....................vi Safety Conformity ......................vi Abbreviations ........................vii Warnings ...........................vii INTRODUCTION ....................1 General ......................1 INSTALLATION ....................4 Gas Connections ....................6 Power Supply Connection ..................
  • Page 5 Manufacturing Quality ..............23 Appendix C Analyzer Return Document & Decontamination Declaration ......25 Figures Figure 1 Condumax II Sampling System - Indoor Version ...........4 Figure 2 Condumax II Sampling System - Outdoor Version .........5 Tables Table 1 Wire colors ....................6 Table 2 Terminal marks ...................7...

  • Page 6: Safety

    Repair and Maintenance The instrument must be maintained either by the manufacturer or an accredited service agent. Refer to www.michell.com for details of Michell Instruments’ worldwide offices contact information. Safety Conformity This product meets the essential protection requirements of the relevant EU directives.

  • Page 7: Abbreviations

    Condumax II Sampling System - NEC Compatible IOM Manual Abbreviations The following abbreviations are used in this manual: alternating current barg pressure unit (=100 kP or 0.987 atm) °C degrees Celsius °F degrees Fahrenheit pound(s) kilogram(s) HCdp hydrocarbon dew-point Nl/min...
  • Page 8 Condumax II Sampling System - NEC Compatible IOM Manual This page intentionally left blank viii 97525, Issue 1, November...

  • Page 9: Introduction

    The water dew-point (where fitted) is measured at full pipeline pressure, to determine the highest water dew-point for the gas sample being analyzed. The complete Condumax II Hydrocarbon Dew-Point Analyzer Sampling System can be located close to the gas sample take-off point in a potentially explosive environment - designated Class 1 Division 1 hazardous area.
  • Page 10 Condumax II Sampling System - INTRODUCTION NEC Compatible IOM Manual • Line Pressure Gauge (PG1): Indicates the sample gas line pressure. • HCdp Pressure Regulator (PR1): Allows the user to manually set the sample gas analysis pressure for hydrocarbon dew-point measurement.
  • Page 11 Condumax II Sampling System - INTRODUCTION NEC Compatible IOM Manual The bypass flow gas handling components are as follows: • Bypass Flow Letdown Pressure Regulator (PR2): Provides pressure letdown from sample line pressure to a lower vent pressure. • Non Return Valve (NRV2): Provides system protection from back pressure of vent gas when sample gas is not flowing.

  • Page 12: Installation

    INSTALLATION NEC Compatible IOM Manual INSTALLATION The Condumax II Hydrocarbon Dew-point Analyzer Sampling System gas handling components are assembled onto a stainless steel mounting plate suitable for wall mounting. The indoor version Sampling System should be located in a constant temperature controlled environment of at least +10°C (+18°F) above the highest envisaged dewpoint...

  • Page 13: Figure 2 Condumax Ii Sampling System - Outdoor Version

    (1/4" OD TUBE) WARM AIR VENT SAMPLE GAS INLET VIA SILENCER (1/4" OD TUBE) INSTRUMENT AIR INLET BREATHER/DRAIN (1/4" NPTF) LETDOWN GAS VENT/DRAIN EARTHING POST (M8) (1/4" OD TUBE) Figure 2 Condumax II Sampling System - Outdoor Version Michell Instruments...

  • Page 14: Gas Connections

    The factory-set power supply voltage is indicated on a yellow label located on the rear panel. NOTE: The user cannot change the specified power supply voltage. The Condumax II analyzer is powered via the mains from the analyzer conduit. Wire Color...

  • Page 15: Output Wiring Connections

    Condumax II Sampling System - INSTALLATION NEC Compatible IOM Manual Wiring connections, for power to heater circuit and heated regulator are made onto terminals within the Power Circuits conduit box. Terminals are marked: Terminal No. Power Connection Line Voltage Neutral...

  • Page 16: Table 5 Wire Numbers, Hc And Water Dew-Point Version

    Condumax II Sampling System - INSTALLATION NEC Compatible IOM Manual HC and Water Dew-Point Version Wire No. Output Modbus RS485 digital comms Earth Modbus RS485 digital comms A Modbus RS485 digital comms B Water dew-point measurement current - mA1 Water dew-point measurement current + mA1...

  • Page 17: Operation

    OPERATION NEC Compatible IOM Manual OPERATION Operation of the Condumax II Sampling System should be carried out in conjunction with, and referring to, the Condumax II Hydrocarbon Dew-Point Analyzer User Manual prior to commencing the System Start-Up Procedure (Section 3.1).

  • Page 18: System Start-Up Procedure

    NEC Compatible IOM Manual System Start-Up Procedure Proceed as follows: Unscrew and remove the Condumax II flameproof enclosure cover after first loosening the hex grub screw. The user interface/display assembly uses two ¼-turn bayonet style fasteners to secure it and are finger operated - clockwise to lock, counter-clockwise to release.

  • Page 19: System Shut-Down Procedure

    After the flameproof enclosure cover has been refitted the Condumax II is ready for power up. Switch on the power to the Condumax II using the Condumax II Power Isolator switch located on the Power Circuits junction box. Re-adjust the HCdp Pressure Regulator (PR1) to set the HCdp gas analysis pressure.

  • Page 20: Pressure Regulator Temperature Control

    Condumax II Sampling System - OPERATION NEC Compatible IOM Manual Pressure Regulator Temperature Control WARNING This operation will expose electrical parts operating at high voltage. Therefore, isolate the power supply from the Sampling System before making adjustments. The heated pressure regulator contains an adjustment for the temperature control set point (factory-set to approximately +40°C (+104°F)).

  • Page 21: Options

    Condumax II Sampling System - OPTIONS NEC Compatible IOM Manual OPTIONS Enclosure Heater Temperature Control Sampling systems can be fitted with temperature control, to maintain a constant temperature environment of at least 10°C (18°F) above the highest envisaged dew- point temperature, independent of surrounding temperature variations. The temperature control system, consists of a heater controlled by a fixed preset thermostat to provide internal ambient air temperature control of >+15°C (>+59°F) or >+35°C (>+95°F).

  • Page 22: Membrane And Particulate Filter Element Replacement

    Condumax II Sampling System - MAINTENANCE NEC Compatible IOM Manual MEMBRANE AND PARTICULATE FILTER ELEMENT REPLACEMENT Service Intervals The life expectancy of the filter elements is dependent upon operating conditions in each specific application. As a minimum it is recommended that the filter elements be changed every 12 months.
  • Page 23 Condumax II Sampling System - MAINTENANCE NEC Compatible IOM Manual Installing the Filter Housing As the filter housing is a pressure vessel the system connections and accessory outlets must be leak tight. It is good practice to use a pipe sealant on the fittings prior to connecting to the filter housing ports.
  • Page 24 Condumax II Sampling System - MAINTENANCE NEC Compatible IOM Manual Membrane Replacement The membrane is held in place by the O-ring.The whole membrane holder unit comes free from the housing leaving the filter housing /body still intact with the process lines with no need to loosen connections.
  • Page 25 Condumax II Sampling System - APPENDIX A NEC Compatible IOM Manual Appendix A Technical Specifications Michell Instruments...

  • Page 26: Appendix A Technical Specifications

    Condumax II Sampling System - APPENDIX A NEC Compatible IOM Manual Appendix A Technical Specifications General Gas Wetted Materials 316L stainless steel with Viton soft parts ® Sample Gas Hydrocarbon/Natural Gas Sample Gas Pressure 10 to 100 barg (145 to 1450 psig) HCdp range = 0.02 to 0.13 m³/hour (0.3 to 2.2 Nl/min)
  • Page 27 Condumax II Sampling System - APPENDIX B NEC Compatible IOM Manual Appendix B Quality, Recycling & Warranty Information Michell Instruments...

  • Page 28: Appendix B Quality, Recycling & Warranty Information

    European manufacturers of electrical and electronic equipment. 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 29: Rohs2 Compliance

    Category 9, Control and Monitoring Equipment. Under the 2002/95/EC Directive, Category 9 products are exempt from compliance with the Directive. However, the careful design of all Michell Instruments’ products takes into consideration the requirements of the Directive and, wherever possible, compliance is achieved. All future products will be developed entirely using compliant materials.

  • Page 30: 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 31: Return Policy

    APPENDIX B NEC Compatible IOM Manual 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 32 Condumax II Sampling System - APPENDIX L NEC Compatible IOM Manual Appendix C Analyzer Return Document & Decontamination Declaration 97525, Issue 1, November...

  • Page 33: Appendix C Analyzer Return Document & Decontamination Declaration

    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 34 http://www.michell.com...

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