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delta-mobrey D21 Safety User Manual

Pressure and differential pressure transmitters
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IOM-D21-D31-SAFETY-B-SEP 2020
DELTA MOBREY
USER'S MANUAL
PRESSURE AND DIFFERENTIAL PRESSURE TRANSMITTERS
D21 Safety
D31 Safety
DELTA MOBREY LTD.
Riverside Business Park, Dogflud
Way,Farnham,Surrey, GU9 7SS,
+44 (0) 1252 729140, fax +44 (0) 1252 729168
www.delta-mobrey.com, e-mail:
sales@delta-mobrey.com

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  • Page 1 IOM-D21-D31-SAFETY-B-SEP 2020 DELTA MOBREY USER’S MANUAL PRESSURE AND DIFFERENTIAL PRESSURE TRANSMITTERS D21 Safety D31 Safety DELTA MOBREY LTD. Riverside Business Park, Dogflud Way,Farnham,Surrey, GU9 7SS, +44 (0) 1252 729140, fax +44 (0) 1252 729168 www.delta-mobrey.com, e-mail: sales@delta-mobrey.com...
  • Page 2 D21 Safety ID: 0022 0004 0002 0000 0000 0008 0002 91 (standard version) ID: 0022 0004 0002 0000 0000 0009 0002 42 (Exi or Exd or Exi/Exd versions) D31 Safety ID: 0023 0004 0002 0000 0000 0008 0002 88 (standard version)
  • Page 3 − possible mechanical impacts, excessive shocks and vibration; − excessive temperature fluctuation; − water vapour condensation, dusting, icing. Changes made to the manufacturing of products may be introduced before the paper version of the manual is updated. The up-to-date manuals are available on the manufacturer's website: www.delta-mobrey.com...

  • Page 4: Table Of Contents

    IOM-D21-D31-SAFETY-B-SEP 2020 TABLE OF CONTENTS 1. INTRODUCTION ..................6 1.1. Purpose of the document .................... 6 1.2. Trademarks ......................... 6 1.3. Definitions and abbreviations ..................7 1.4. Transmitter set range ....................8 2. SAFETY ....................... 9 3. TRANSPORT AND STORAGE ..............10 3.1.
  • Page 5 IOM-D21-D31-SAFETY-B-SEP 2020 9. START-UP ....................26 9.1. Alarm configuration ....................26 9.2. Configuration of operating mode ................27 9.3. Correction of impact of transmitter mounting position on site – pressure reset ..28 9.4. Correction of impact of spacing of distance separators on site ......... 28 9.5.

  • Page 6: Introduction

    INTRODUCTION 1.1. Purpose of the document The subject of manual are smart pressure transmitters D21 Safety and smart differential pressure transmitters D31 Safety hereinafter referred jointly to as D21/D31 Safety. The manual applies to the following versions: standard, PED, flameproof Exd, intrinsically safe Exi.

  • Page 7: Definitions And Abbreviations

    IOM-D21-D31-SAFETY-B-SEP 2020 1.3. Definitions and abbreviations Table 1. Definitions and abbreviations. Item Abbr. Meaning “Lower Range Value” - the value of the set range expressed in physical units corresponding to the current of 4,000mA, i.e. 0% of the output setpoint. The set range cannot exceed the set range limits.

  • Page 8: Transmitter Set Range

    IOM-D21-D31-SAFETY-B-SEP 2020 1.4. Transmitter set range The figure below shows the transmitter set range and limits related to allowable set range, digital pro- cessing range and saturation limits of A/D pressure measurement transducer. As standard, values of 4 mA/20 mA currents are assigned to LRV/URV points. In order to obtain reverse characteristics, it is possible to reverse the assignment so that the LRV/URV points are assigned to 20 mA/4 mA currents.

  • Page 9: Safety

    IOM-D21-D31-SAFETY-B-SEP 2020 SAFETY − The installation and start-up of the device and any activities related to operation shall be carried out after thorough examination of the contents of user’s manual and instructions related thereto; − installation and maintenance should be carried out by qualified staff having the required authorizations to install electrical and measuring devices;...

  • Page 10: Transport And Storage

    GUARANTEE General terms and conditions of guarantee are available on the manufacturer’s website: www.delta-mobrey.com The guarantee shall be repealed if the device is used against its intended use, failure to comply with user’s manual or interference with the structure of the device.

  • Page 11: Identification

    IOM-D21-D31-SAFETY-B-SEP 2020 IDENTIFICATION 5.1. Manufacturer's address Riverside Business Park Dogflud Way Farnham GU9 7SS 5.2. Transmitter identification Depending on the version of the transmitter, the nameplates may differ in the amount of information and parameters. Figure 2. Example nameplate. 1. Logo and name of manufacturer. 15.

  • Page 12: Installation

    IOM-D21-D31-SAFETY-B-SEP 2020 INSTALLATION 6.1. General recommendations It is recommended that in case of a gaseous medium, the transmitters should be installed above the measuring point so that condensate may flow to the point from which the meas- ured pressure is collected, while in case of liquid medium or steam, it should be installed below the point of pressure intake.

  • Page 13: Installation Instructions For Transmitters With Distance Separators

    IOM-D21-D31-SAFETY-B-SEP 2020 Figure 5. Examples of transmitter installation on tanks. 6.1.2. Installation instructions for transmitters with distance separators The protection of the separator diaphragm can only be removed shortly before installation. Hydrostatic pressure of the manometric liquid column in the transmitter-separator system may cause incorrect indication of the measured value.

  • Page 14: Closing Of Housing Covers, Sealing

    IOM-D21-D31-SAFETY-B-SEP 2020 6.1.3. Closing of housing covers, sealing The front and rear cover threads have a factory coating, therefore no additional coating is required. Before tightening the covers, make sure that the thread surfaces are free of contamination, e.g. sand. It should be possible to screw the covers smoothly.

  • Page 15: Electrical Connection

    IOM-D21-D31-SAFETY-B-SEP 2020 ELECTRICAL CONNECTION 7.1. Cable connection to transmitter internal terminals All connection and installation operations must be performed with disconnected supply voltage and other external voltages, if used. Failure to provide proper connection of the transmitter may result in danger. Risk of electric shock and/or ignition in potentially explosive atmospheres.

  • Page 16: Connection Of Transmitter With The Option Of Using Local Hart Communication

    IOM-D21-D31-SAFETY-B-SEP 2020 7.1.2. Connection of transmitter with the option of using local HART communication The transmitter allows to use the local HART communication. To do this you can use a HART com- municator unit or modem connected to a computer. In order to establish the local communication, it is necessary to: −...
  • Page 17 IOM-D21-D31-SAFETY-B-SEP 2020 Figure 9. Electrical connection 4...20 mA of HART to transmitter in Exd version. Figure 10. Electrical connection 4...20 mA of HART to transmitter in Exi version. It is mandatory to read IOM-D21-D31-EX D Explosion-proof Device User Manual, containing important information related to the installation of intrinsically safe and flameproof versions of the transmitter.

  • Page 18: Transmitter Power Supply

    IOM-D21-D31-SAFETY-B-SEP 2020 7.2. Transmitter power supply 7.2.1. Transmitter supply voltage Power cables may be live. There is a risk of electric shock and/or explosion. Installation of the transmitter in explosion-risk atmospheres must comply with national standards and regulations. All explosion protection data is given in manual IOM-D21-D31-EX D Explosion-proof De- vice User Manual.

  • Page 19: Shielding, Equipotential Bonding

    IOM-D21-D31-SAFETY-B-SEP 2020 7.2.6. Shielding, equipotential bonding When using a cable in the screen, connect the screen on one side at the transmitter’s power supply point. 7.3. Equipotential bonding When using an intrinsically safe transmitter with an additional overvoltage protection (Version ‘1’ as shown on the datasheet), having the designation “SA version”...

  • Page 20: Operation

    IOM-D21-D31-SAFETY-B-SEP 2020 OPERATION The transmitter gives the possibility of rotating the housing and adjusting the display position to the mounting position of the body. To rotate the housing, loosen the screw (item 1), position the transmit- ter housing (item 2) as required, tighten the screw (item 1). Access to the extensions (item 4) used to rotate the display is provided after opening the front cover (item 3).
  • Page 21 IOM-D21-D31-SAFETY-B-SEP 2020 LCD2 field: The LCD2 field is used mainly to display floating point decimal values in a unit displayed on LCD3. In some cases, other messages may be displayed: − ERROR in case of some operating errors or failure diagnosed in the transmitter, error/failure number Exxxx will appear on LCD2, the ERROR message will be displayed on LCD3.
  • Page 22 IOM-D21-D31-SAFETY-B-SEP 2020 BYPRES option of setting the range according to pressure. BYVALU option of setting the set range by entering a value. RESET transmitter hot restart software menu. LCD1VR menu for selection of the type of measurement displayed on LCD1. LCD2VR menu for selection of the type of measurement displayed on LCD2.

  • Page 23: Local Buttons

    IOM-D21-D31-SAFETY-B-SEP 2020 message displayed on LCD3. It is displayed if: − a user tried to perform an operation that is disabled or unavailable. It may be caused by: − ER_L16 attempting to access the local setpoint change MENU when the access to the local MENU is disabled; −...

  • Page 24: Structure Of Local Setpoints Menu

    IOM-D21-D31-SAFETY-B-SEP 2020 8.5. Structure of local setpoints MENU Press and hold any of 3 buttons for 4 seconds. When navigating in the area of the active local MENU, holding the button required to trigger the action is minimum 1 second. Continuous pressing of the ↑ or ↓ button results in scrolling of the MENU posi- tions every 1 second.

  • Page 25: Remote Configuration Of Setpoints (Hart)

    IOM-D21-D31-SAFETY-B-SEP 2020 8.6. Remote configuration of setpoints (HART) The transmitter allows to read out and configure the parameters via HART communication using 4...20 mA loop as a physical layer for FSK BELL 202 modulation. 8.6.1. Compatible devices The following devices may be used to communicate with the transmitter: −...

  • Page 26: Start-Up

    IOM-D21-D31-SAFETY-B-SEP 2020 START-UP As standard, the transmitter is adjusted to a set range equal to the base range, unless a specific set range is provided in the order. The base range and the basic unit of the transmitter can be read out from its nameplate (➔...

  • Page 27: Configuration Of Operating Mode

    IOM-D21-D31-SAFETY-B-SEP 2020 The transmitter diagnostics continually tests the environmental parameters: − temperature of the pressure measurement structure sensor; − temperature of the ADC transducer converting the electric signal from the pressure sensor to the digital value of measurement; − temperature of the CPU structure (transmitter's main microcontroller). If the transmitter operat- ing temperature limits are exceeded, the diagnostics will trigger an alarm I_AL<3,600 mA.

  • Page 28: Correction Of Impact Of Transmitter Mounting Position On Site - Pressure Reset

    IOM-D21-D31-SAFETY-B-SEP 2020 9.3. Correction of impact of transmitter mounting position on site – pressure reset Once the transmitter is mounted in a target location, it must be reset. This operation will eliminate the possible influence of the mounting position on the indication of pressure/differential pressure. In order to do so: −...

  • Page 29: Level Measurements

    9.7. Pressure and differential pressure measurements The D21 Safety transmitter is intended for measuring the relative (overpressure and underpressure) and absolute gas, vapour and liquid pressure. Examples of transmitter installation are shown in ➔Figure 3.

  • Page 30: Maintenance

    IOM-D21-D31-SAFETY-B-SEP 2020 10. MAINTENANCE 10.1. Periodic inspections Periodic inspections shall be carried out in accordance with applicable standards. During the inspec- tion, the condition of the pressure (absence of loosened elements and leaks) and electrical (check of connections reliability and condition of gaskets and glands) connectors, condition of separating dia- phragms (tarnish, corrosion) and stability of fixing of the housing and mounting bracket (if used) shall be checked.

  • Page 31: Scrapping, Disposal

    IOM-D21-D31-SAFETY-B-SEP 2020 11. SCRAPPING, DISPOSAL Worn or damaged devices shall be scrapped in accordance with WEEE Directive (2012/19/EU) on waste electrical and electronic equipment or returned to the manufactur- 12. HISTORY OF REVISIONS Revision Document revision Description of changes IOM-D21-D31- SAFETY-A-SEPT First issue.

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D31 safety

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