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PST Michell Instruments Promet I.S. User Manual

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Promet I.S.
Process Moisture Analyzer
User Manual
97221 Issue 6
July 2022

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  • Page 1 Promet I.S. Process Moisture Analyzer User Manual 97221 Issue 6 July 2022...
  • 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. Product Name Order Code Serial Number Invoice Date Installation Location Tag Number Product Name Order Code Serial Number Invoice Date Installation Location Tag Number...
  • Page 3 Promet I.S. Process Moisture Analyzer For Michell Instruments' contact information please go to www.michell.com © 2022 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

    Promet I.S. User Manual Contents Safety ..........................vi Electrical Safety ......................vii Pressure Safety ......................vii Hazardous Materials (WEEE, RoHS3 & REACH) ..............vii Repair and Maintenance ....................vii Calibration ........................vii Safety Conformity .......................vii Abbreviations ........................viii INTRODUCTION ....................1 Performance Features ..................2 Applications ....................... 2 Theory of Operation ...................
  • Page 5 Promet I.S. User Manual Figures Figure 1 Promet I.S. Control Unit ................1 Figure 2 Structure of the Michell Ceramic Metal-Oxide Moisture Sensor .......3 Figure 3 Major Components of the Promet I.S............4 Figure 4 Dimensions of the Control Unit (in mm) ............7 Figure 5 Rack Mounting Method ................8 Figure 6...

  • Page 6: Safety

    Promet I.S. User Manual Safety The instrument is designed to be completely safe when installed and operated correctly in accordance with the information provided in this manual. This manual contains all the required information to install, operate and maintain this product. Prior to installation and use of this product, this entire manual should be read and understood.

  • Page 7: Electrical Safety

    Promet I.S. User Manual Electrical Safety Ensure electrical safety is complied with by following the directions provided here and observing all local operation & installation requirements at the intended location of use. This product is completely safe when using any options and accessories supplied by the manufacturer of this product for use with it.

  • Page 8: Abbreviations

    Promet I.S. User Manual Abbreviations The following abbreviations are used in this manual: Ampere alternating current barg pressure in bar (gauge) °C degrees Celsius °F degrees Fahrenheit direct current dew point Hertz lb/MMscf pounds per million standard cubic feet lbf-ft pound force per foot milliampere mg/m...

  • Page 9: Introduction

    Promet I.S. User Manual INTRODUCTION INTRODUCTION The Promet I.S. Process Moisture Analyzer is a continuous, on-line instrument for the measurement of absolute moisture content in gas. It is designed to fulfil a wide range of applications and provide for the monitoring and/or control of moisture in gas. The instrument consists of two component parts: the control unit and the sensors’...

  • Page 10: Performance Features

    Promet I.S. User Manual INTRODUCTION Performance Features • State-of-the-art ceramic metal-oxide moisture sensor with chemically inert materials coupled with physical resilience provides long-term reliability in the most arduous applications. Robust construction also enables measurement directly at process / pipeline pressure up to 45 MPa (450 barg/5801 psig).

  • Page 11: Theory Of Operation

    Promet I.S. User Manual INTRODUCTION Theory of Operation The reliable and robust sensor design is fundamental to achieving accurate measurement of moisture in process over a long period of time. Proprietary thick- and thin-film techniques are applied in the Michell ceramic metal-oxide moisture sensor. The inert materials of the sensor have a high resistance to aggressive media while the inherent strength of the sensor and the thermal bonded connections to the active device ensures reliable operation.

  • Page 12: System Components

    Promet I.S. User Manual INTRODUCTION System Components The Promet I.S. Process Moisture Analyzer consists of: • the sensor assembly • the multi-channel control unit   Sensor Assembly Control Unit (Up to four channels can have any combination of Promet I.S., Liquidew I.S.

  • Page 13: Input/Output Signal

    Promet I.S. User Manual INTRODUCTION 1.4.1 Input/Output Signal The terminal blocks for the signal input, signal output and alarm output are located on the back panel of the control unit (see Figure 8) . • Signal Input There are two 4...20 mA signal input channels from the dew-point and optional pressure sensors to the control unit.

  • Page 14: Installation

    Promet I.S. User Manual INSTALLATION INSTALLATION It is essential that the installation of the electrical and gas supplies to this analyzer be undertaken by suitably qualified personnel. Unpacking the Analyzer Unpack carefully as follows: Remove the accessories (if ordered). If no accessories have been ordered the delivery should contain following items: •...

  • Page 15: Environmental Requirements

    Promet I.S. User Manual INSTALLATION Environmental Requirements The Promet I.S. sensor assembly is intrinsically safe and designed to be installed on- site, indoors or outdoors, directly at the point of measurement within a Hazardous Area. The sensor assembly is ATEX, UKCA, IECEx and QPS certified (to be specified at time of order).

  • Page 16: Figure 5 Rack Mounting Method

    Promet I.S. User Manual INSTALLATION Figure 5 Rack Mounting Method Figure 5 illustrates the general method for fitting a rack mount instrument into a standard 19” rack. To fit the unit proceed as follows: Remove all terminal blocks for the electrical connections. If necessary, remove any covers from the rack cabinet to gain access to the rear and side.

  • Page 17: Mounting The Promet I.s. Sensor Assembly Into The Sampling System

    Promet I.S. User Manual INSTALLATION 2.3.2 Mounting the Promet I.S. Sensor Assembly into the Sampling System HIGH PRESSURE! High pressure gases are potentially hazardous. Energy stored in these gases can be released suddenly and with extreme force. High pressure systems should be assembled and operated only by people who have been trained in proper safety practices.
  • Page 18 Promet I.S. User Manual INSTALLATION The dew-point transmitter has a 5/8” UNF parallel mounting thread which should be installed directly into the sampling block with the bonded seal provided. The bonded seal provided should be placed over the transmitter mounting thread before it is screwed into the sampling block.

  • Page 19: Sampling System Installation

    Promet I.S. User Manual INSTALLATION 2.3.3 Sampling System Installation HIGH PRESSURE! High pressure gases are potentially hazardous. Energy stored in these gases can be released suddenly and with extreme force. High pressure systems should be assembled and operated only by people who have been trained in proper safety practices.

  • Page 20: Wiring

    Promet I.S. User Manual INSTALLATION Wiring These tasks are to be undertaken only by suitably qualified personnel. All the connections to the rear panel are electrical connections. Exercise due caution, particularly when connecting to external alarm circuits which could be at high potential. 2.4.1 Overall Wiring Arrangement EASIDEW PRO I.S.

  • Page 21: Control Unit Wiring

    Promet I.S. User Manual INSTALLATION 2.4.2 Control Unit Wiring The electrical connections are located at the rear panel of the control unit. There are spaces for four individual channels. HAZARDOUS AREA INFORMATION: The only connections on the control unit which can take cables from hazardous area are the connectors labelled I.S.

  • Page 22: 2.4.2.1 Power Supply Input Connection

    Promet I.S. User Manual INSTALLATION 2.4.2.1 Power Supply Input Connection 85...265 V AC POWER INPUT The AC power supply connection is a push fit socket labelled as shown below. POWER INPUT  Socket IEC connector  Figure 9 POWER INPUT Socket The method of connection is as follows: Turn off the AC power.

  • Page 23: Figure 10 Power Input Connector Block

    Promet I.S. User Manual INSTALLATION 18...28 V DC If a DC power supply version is ordered it will come with a 3-way push fit connector block labelled POWER INPUT as shown below. POWER INPUT  socket  Terminal block Figure 10 POWER INPUT Connector Block The method of connection is as follows: Turn off the power.

  • Page 24: 2.4.2.2 Sensor Signal Input Connection

    Promet I.S. User Manual INSTALLATION 2.4.2.2 Sensor Signal Input Connection HAZARDOUS AREA INFORMATION Cables from transmitters mounted in hazardous areas can be SENSOR INPUTS connected directly to the connector block. There are built-in Galvanic I.S. barriers for all connections made to this connector block.

  • Page 25: 2.4.2.3 Analog Output Connection

    Promet I.S. User Manual INSTALLATION 2.4.2.3 Analog Output Connection Three analog output ports are provided for moisture content signal and pressure signal respectively. They are connected via a single 5-way push-fit connector block labelled OUTPUT as explained below. Terminal Block Pin Output Screen The method of connection is as follows:...

  • Page 26: 2.4.2.4 Alarm Output Connection

    Promet I.S. User Manual INSTALLATION 2.4.2.4 Alarm Output Connection Four alarm output ports are provided and are connected to the instrument via a single 8-way push fit connector block labelled ALARMS as shown below. ALARMS  socket  Terminal bock Figure 12 ALARM Connector Block Alarm 1 (connection labelled as AL1) and Alarm 2 (connection labelled as AL2) are Form...

  • Page 27: 2.4.2.5 Rs485 Port Connection

    Promet I.S. User Manual INSTALLATION Alarm 3 (connection labelled as AL3) and Alarm 4 (connection labelled as AL4) are Form A (single pole, single throw, normally open) relays. The method of connection is as follows: Strip back the wires of the Alarm 3 cable, exposing approximately 6 mm (0.2”) –...

  • Page 28: Sensor Assembly Wiring

    Promet I.S. User Manual INSTALLATION 2.4.3 Sensor Assembly Wiring NOTE: If the analyzer has been ordered with a sampling system, the Promet I.S. sensor assembly will be wired-up in the factory to the junction box. In that case, disregard the following instructions and go to Section 3. 2.4.3.1 Dew-point Transmitter Wiring HAZARDOUS AREA INFORMATION The dew-point transmitter (Easidew PRO I.S.) is certified...

  • Page 29: Figure 13 Crimped Wires

    Promet I.S. User Manual INSTALLATION Preparation of the Sensor Cable In order to comply with hazardous area certification of the product it is essential that the crimps/wire ferrules supplied must be attached on to any cable installed into the connector. As shown in Figure 13 below, the crimps/wire ferrules should be applied so that there is no possibility of a conductor strand of a core becoming free.

  • Page 30: Figure 16 Pin Assignment Drawing

    Promet I.S. User Manual INSTALLATION Ensure that the outer diameter of the selected cable is matched to an EExe M20 cable gland (5). Unscrew the cable gland (5) and slide the cable through the cable gland (5) and into the terminal housing (1) through the cable entry (3).

  • Page 31: 2.4.3.2 Optional Pressure Transmitter Wiring

    Promet I.S. User Manual INSTALLATION 2.4.3.2 Optional Pressure Transmitter Wiring HAZARDOUS AREA INFORMATION The pressure transmitter is certified intrinsically safe for use in hazardous areas. Before using the pressure transmitter in any hazardous environment ensure that personnel are competent. If the pressure transmitter is not ordered together with the analyzer, it is the user’s responsibility to make sure that the pressure transmitter is compatible with the I.S.

  • Page 32: Figure 18 Removal Of Terminal Block

    Promet I.S. User Manual INSTALLATION When the connector is unplugged from the transmitter, remove the central screw (1) (Figure 17) completely. Remove the gasket (8) (Figure 17) from the connector. Using a small screwdriver in the mounting hole (7), lever the terminal block (6) out of the outer housing (5) (Figure 18) .

  • Page 33: Figure 19 Pressure Transmitter Wiring Diagram

    Promet I.S. User Manual INSTALLATION + 4-20mA lead Supply – 4-20mA lead 4-20 mA Figure 19 Pressure Transmitter Wiring Diagram CAUTION: Always connect the 4...20 mA return signal to a suitable load (in this case, back into the control unit) before the power is applied.

  • Page 34: Operation

    Promet I.S. User Manual OPERATION OPERATION Preparation Before applying power and beginning sample flow ensure that the system has been properly installed following the instructions in Section 2 and that all sample connections are tight and leak free. Check that the wiring has been correctly completed. Ensure that personnel are familiar with Sections 1, 2 and 3 of this manual in which the equipment controls, indicators, elements of the display and overall menu structure are described before starting operation.

  • Page 35: Setup Menu

    Promet I.S. User Manual OPERATION To change the displayed humidity value LOCK Press the icon and enter the passcode (5618) using the keypad. Then press the upper value to toggle between °Cdp, ppm (I), lbmmscf, mg/m (N). 3.2.2 Setup Menu LOCK To enter the Setup Menu, press the icon and enter the password as described...
  • Page 36 Promet I.S. User Manual OPERATION Alarm Menu The alarm menu sets the Source and High (Hi) and Low (Lo) set points for all 4 alarms, whereby the Source can be set, selected from Dew Point, Pressure, ppm (I), lbmmscf, mg/m and ppm (N), whereby the units for the Dew Point and Pressure are set in the Display menu above.
  • Page 37 Promet I.S. User Manual OPERATION Inputs Menu Sets the range of the Dew Point and Pressure input channels, in the units set in the Display page. The default values are shown below: Pressure Menu Set the pressure source to be either from a pressure transducer or from a fixed value. Michell Instruments...

  • Page 38: Menu Structure

    Promet I.S. User Manual OPERATION PUV = Press Upper Value (-46.7) Menu Structure Dp PUV ppmV(I) LBMMSCF ppmV(N) mg/M3 The Promet I.S. main menu has a two-level menu structure. There are three sub-menus DISP FAULT OUTPUT . The ALARM SETTINGS are not in the main menu and are accessed separately.

  • Page 39: Figure 20 Menu Map

    Promet I.S. User Manual OPERATION PUV = Press Upper Valu Dp PUV ppmV(I) Select Alarm Pressure ppmV(I) Save Setting for exiti Select Output Pressure ppmV(I) Save Setting before e Temperature Unit (C or F) for both Inputs and Outpu ISO & IGT selection for Na Save Setting before e Sets the 4-20mA range fo Transmitters, which are in...
  • Page 40 Promet I.S. User Manual APPENDIX A Appendix A Technical Specifications 97221 Issue 6, July 2022...

  • Page 41: Appendix A Technical Specifications

    Promet I.S. User Manual APPENDIX A Appendix A Technical Specifications Sensors Sensor Technology Michell Ceramic Metal-Oxide Moisture Sensor Sensor Version Easidew PRO I.S. Measurement Range -100...+20 °Cdp (-148...+68 °Fdp) Calibration Range -100...+20 °Cdp (-148...+68 °Fdp) Traceable to British (NPL) and American (NIST) National Humidity Calibration Standards Dew point: ±1 °C between -60 and +20 °Cdp (-76 and +68 °Fdp)

  • Page 42: Figure 21 Dimensional Drawings (In Mm)

    Promet I.S. User Manual APPENDIX A Sampling Systems Refer to relevant ES70G data sheet (97550) Hazardous Area Certification Certification Codes See Appendix C Dimensional Drawings Figure 21 Dimensional Drawings (in mm) 97221 Issue 6, July 2022...
  • Page 43 Promet I.S. User Manual APPENDIX B Appendix B Serial Communications Michell Instruments...

  • Page 44: Appendix B Serial Communications

    Promet I.S. User Manual APPENDIX B Appendix B Serial Communications To communicate with the monitor: • Connect to the serial port using the wiring defined below. • Set the address of the monitor using the front panel. • Set the desired communication protocol (ASCII or Modbus RTU) via the front panel or over the serial interface.
  • Page 45 Promet I.S. User Manual APPENDIX B Process Monitor Register Map: Read/ Default Register Address Function Description Notes Write Value Configuration Modbus Address 1...32 Alarm Configuration mA output Configuration System Configuration O/p 1 low s/p hi word FLOAT O/p 1 low s/p lo word FLOAT O/p 1 high s/p hi word FLOAT...
  • Page 46 Promet I.S. User Manual APPENDIX B Read/ Default Register Address Function Description Notes Write Value Configuration Liquid Selection Liquid Mix Ratio (% of Mixed Liquid 1) User Cs Table 1, Cs Value at -20 °C User Cs Table 1, Cs Value at -10 °C User Cs Table 1, Cs Value at 0 °C User Cs Table 1, Cs Value at 10 °C User Cs Table 1, Cs Value at 20 °C...
  • Page 47 Promet I.S. User Manual APPENDIX B Read/ Default Register Address Function Description Notes Write Value Configuration Analog Output 1 – DAC 20 mA 0...65535 Value Analog Output 2 – DAC 4 mA Value 0...65535 Analog Output 2 – DAC 20 mA 0...65535 Value Analog Output 3 –...
  • Page 48 Promet I.S. User Manual APPENDIX B Read/ Default Register Address Function Description Notes Write Value Configuration Moisture – ppm – Lo Word IEEE754 Moisture – ppm (Ideal) – Hi Word IEEE754 Moisture – ppm (Ideal) – Lo Word IEEE754 Moisture – ppm (Nat Gas) –...
  • Page 49 Promet I.S. User Manual APPENDIX B Register Configuration A A1: Unsigned Short. Range = 0...65535 A2: Unsigned Short /10. Range = 0...6553.5 A3: Unsigned Short /100. Range = 0...655.35 Conversion: float*x = unsigned integer Unsigned integer/x = float Or cast: float value to read= ((float) (value))/x;...
  • Page 50 Promet I.S. User Manual APPENDIX B Register Configuration C – System Configuration Pressure Units (PU) Temperature Unit (TU) 00 = Bar.G (def) 0 = C (def) 01 = Psi.G 1 = F 10 = Mpag 11 = Spare Main Unit Instrument Type (IT) –...
  • Page 51 Promet I.S. User Manual APPENDIX B Register Configuration E – mA Output Config Ouput1 Parameter (O1) Output2 Parameter (O2) Output3 Parameter (O3) 0000 = Dew point (O2) 0000 = Dew point (O2) 0000 = Dew point (O2) 0001 = Pressure/ 0001 = Pressure/ 0001 = Pressure/ Temperature...
  • Page 52 Promet I.S. User Manual APPENDIX B Register Configuration G – Liquid Selection Liquid Selection (LQ) Mixed Liquid 1 (M1) Mixed Liquid 1 (M2) 0 = n-Butane 0 = n-Butane 0 = n-Butane 1 = n-Propane 1 = n-Propane 1 = n-Propane 2 = n-Hexane 2 = n-Hexane 2 = n-Hexane...
  • Page 53 Promet I.S. User Manual APPENDIX B Register Configuration H – Instrument Setup and Command Register (Reg 30) 2 = Set Dew point Channel 4 mA ADC Value 3 = Set Dew point Channel 20 mA ADC Value 4 = Set Pressure/Temperature Channel 4 mA ADC Value 5 = Set Pressure/Temperature Channel 20 mA ADC Value 10 = Force Analog Output 1...4 mA 11 = Force Analog Output 1...20 mA...
  • Page 54 Promet I.S. User Manual APPENDIX C Appendix C Hazardous Area Certification 97221 Issue 6, July 2022...

  • Page 55: Appendix C Hazardous Area Certification

    Promet I.S. User Manual APPENDIX C Appendix C Hazardous Area Certification The Promet I.S. Process Moisture Analyzer utilizes the Easidew PRO I.S. dew-point transmitter The Easidew PRO I.S is certified compliant to the ATEX Directive (2014/34/EU), the IECEx scheme and SI 2016 No. 1107 UKCA product marking scheme for use within Zone 0, 1 and 2 Hazardous Areas and has been assessed as being so by CML Bv Netherlands (Notified Body 2776) and EUROFINS CML UK (Approved Body 2503).

  • Page 56: Terminal Parameters

    Promet I.S. User Manual APPENDIX C Terminal Parameters = 28 V = 93 mA = 820 mW = 37 nF Special Conditions The wiring connections to the free socket must be made via crimped connectors in such a way that all the strands of the wire used are held securely by the crimp.
  • Page 57 Promet I.S. User Manual APPENDIX D Appendix D System Drawings Michell Instruments...

  • Page 58: Appendix D System Drawings

    Promet I.S. User Manual APPENDIX D Appendix D System Drawings Baseefa Approved System Drawing 97221 Issue 6, July 2022...

  • Page 59: Qps Approved System Drawing

    Promet I.S. User Manual APPENDIX D QPS Approved System Drawing Michell Instruments...
  • Page 60 Promet I.S. User Manual APPENDIX E Appendix E Quality, Recycling & Warranty Information 97221 Issue 6, July 2022...

  • Page 61: Appendix E Quality, Recycling & Warranty Information

    APPENDIX E Promet I.S. User Manual Appendix E 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: •...
  • Page 62 APPENDIX F Promet I.S. User Manual Appendix F Return Document & Decontamination Declaration 97221 Issue 6, July 2022...

  • Page 63: Appendix F Return Document & Decontamination Declaration

    Promet I.S. User Manual APPENDIX F Appendix F Return Document & Decontamination Declaration Decontamination Certificate IMPORTANT NOTE: Please complete this form prior to this instrument, or any components, leaving your site and being returned to us, or, where applicable, prior to any work being carried out by a Michell engineer at your site.
  • Page 64 www.ProcessSensing.com http://www.michell.com...

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