Solartron Mobrey MRL800 Installation & Maintenance Manual

Radar level transmitter. radar-based continuous level measurement

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process measurement solutions
Radar Level
Transmitter
Installation &
Maintenance
Radar-Based Continuous Level
Manual
IP2028/IM
Measurement
891
!
518
IP2028/IM
Page 1

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Summary of Contents for Solartron Mobrey MRL800

  • Page 1 process measurement solutions Radar Level Transmitter Installation & Maintenance Radar-Based Continuous Level Manual IP2028/IM Measurement IP2028/IM Page 1...
  • Page 2 However, we cannot be responsible for errors, omissions or any loss of data as a result of errors or omissions. Solartron Mobrey reserves the right to make changes to the manual or improvements to the product at any time without notice.
  • Page 3: Table Of Contents

    Table of Contents Page Introduction ............Description ............How the Radar Level Transmitter Works ...... How to use this manual .......... Technical Services ..........Installation Procedure ..........Radio Licensing Approval ......... General installation requirements ......Hazardous area installation ........Selecting a Location ..........Mounting the Radar Level Transmitter ......
  • Page 4 Safety Precautions The following safety precautions should be observed before using this product or working on the attached cables. This Radar Level Transmitter is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury.
  • Page 5 To clean the instrument, use a damp cloth or mild, water based cleaner. Clean the exterior of the instrument only. Do not allow liquids to enter the instrument. WARNING - If this equipment is used in a manner not specified by Solartron Mobrey, the protection provided may be impaired.
  • Page 6 Approvals The Radar Level Transmitter is certified for use in hazardous locations as follows : ATEX Detail available once certification • process is complete • • Detail available once certification • process is complete • • Detail available once certification •...
  • Page 7: Introduction

    Introduction The Radar Level Transmitter uses an FMCW microwave signal to measure the level of the process material. The Radar Level Transmitter provides superior performance to pulsed measurement systems, particularly in hostile environments, because the continuous microwave signal is unaffected by mist, surface agitation, temperature changes, or pressure changes.
  • Page 8 The Radar Level Transmitter firmware uses the distance measurement to calculate the level in the tank. The Solartron Mobrey Hand Held Communicator (MRL-HHC) can be connected to the Radar Level Transmitter using the lead provided which allows the user to interrogate, programme or display values in the transmitter.
  • Page 9 The standard Radar Level Transmitter provides a 4-20 mA current output, with HART digital protocol super imposed. Characteristics Table (1) below. Input / Output Characteristics Characteristics Type Comments 13-30Vdc Input Power 18-30Vdc when RS232 connected 4-20 mA dc. Full HART Current output communication.
  • Page 10: How The Radar Level Transmitter Works

    How the Radar Level Transmitter Works The Radar Level Transmitter generates and transmits a swept frequency modulated radio signal, which is reflected from the surface of the process material. The distance to the liquid surface is calculated by measuring the difference between the transmit frequency and the received echo frequency;...
  • Page 11: Technical Services

    Solartron Mobrey Distributor or Representative. Contact details can be found on the Solartron Mobrey website at www.solartronmobrey.com Main U.K. office and Solartron Mobrey international headquarters is located in Slough, United Kingdom.
  • Page 12: Installation Procedure

    If it is inteneded to install the Radar Level Transmitter other than as specified, it is the responsibility of the user to ensure compliance with local telecommunications regulations. Solartron Mobrey accept no liability whatsoever resulting from incorrect installation or use of the Radar Level Transmitter.
  • Page 13 A license is currently required in the United Kingdom and Norway. If in any doubt, refer to your Solartron Mobrey Distributor for assistance. Note also any restrictions on use imposed. It is the responsibility of the user to ensure any such licence is obtained.
  • Page 14: General Installation Requirements

    General installation requirements All installation and wiring must be carried out by qualified individuals in accordance with any local or national regulations. The cable entries must be sealed or fitted with a suitable cable gland. 2.3 Hazardous Area Installation requirements : Refer also to IP2028/SI The Radar Level Transmitter is certified for use in hazardous locations as follows : ATEX / FM / CSA •...
  • Page 15: Selecting A Location

    Selecting a location Selecting a good location to mount the Radar Level Transmitter will ensure optimum performance and ease of operation of the instrument. Follow these guidelines when selecting a location for the Radar Level Transmitter: • The ambient temperature range is –20ºC to 60ºC. •...
  • Page 16: Mounting The Radar Level Transmitter

    • If the vessel has a dome top, a good guideline is to mount the Radar Level Transmitter away from the vessel’s centre point by at least 10% of the vessel diameter. If the Radar Level Transmitter is mounted in the centre of the vessel, the dome top will act as a parabolic antenna, potentially enhancing “false”...
  • Page 17 To mount an Radar Level Transmitter with the 1.5” thread, simply screw the threaded mounting nipple into the corresponding fitting on the tank to achieve a pressure tight seal. PTFE tape or equivalent should be used on the taper threaded models, or a suitable seal/gasket on the parallel threaded models. Note: Do not apply force to the housing to tighten the mounting nipple.
  • Page 18 Install the bolts and washers, and attach the nuts. Tighten the bolts in a star- patterned sequence to equalise compression. (See bolting torques 2.5.3) 2.5.3 Bolting torques The information in this section is to the best of our knowledge correct. Since conditions of use are beyond our control users must satisfy themselves that bolt torques are suitable for the flange/process/conditions of their applications.
  • Page 19 2.5.4.2 Carbon steel bolts only If ordinary carbon steel or similar low quality bolts are used the recommended torques are shown below The gasket sealing force created by the application of these torques is not sufficient to withstand full flange pressure rating. To achieve full rating, use high tensile steel bolts as above.
  • Page 20: Wiring Procedure

    Wiring procedure Warnings : • All wiring must be carried out by qualified individuals in accordance with national codes. • Caution: remove all power from the unit before making any connections. • The unit is for connection to SELV voltage levels only. •...
  • Page 21 Wiring instructions Loosen the enclosure cover retaining clamp, then unscrew and remove the cover. Screw a suitable cable gland into the conduit entry provided : Model Code Conduit Entry Thread ******A*** M20 x 1.5 ******U*** 3/4” NPT Feed the 2 core cable into the enclosure and strip wire to reveal the 2 conductors and the screen.
  • Page 22 To open the terminal, simply insert a standard electricians screwdriver tip into the lower rectangular hole in the terminal block such that the tension clamp is opened. Having prepared the connecting cable by stripping the conductor insulation back by 5mm, insert the bare conductor into the tension clamp and withdraw the screwdriver from the terminal block.
  • Page 23 3.2.2 Power consumption The Radar Level Transmitter is designed to operate on 13-30Vdc. The maximum input power requirement is 630mW. 3.2.3 4-20mA current output The current output is fully isolated, and will vary between 4-20mA proportionally to the liquid level. The current ouput can in fact be driven outside of the 4-20mA range to signal fault or alarm conditions.
  • Page 24: Programming & Commissioning

    3.2.5 Programming and commissioning Refer to Technical Handbook IP2028/OM for full programming details. 3.2.5.1 Programming using the MRL-HHC programmer To use the Mobrey MRL-HHC programmer, simply connect the flying lead of the programmer to the gauge at the RS232 socket markeed “programming”. (Note - this must not be left connected once commissioning is complete) 3.2.5.2.
  • Page 25: Maintenance

    Solartron Mobrey Distributor or Representative. Contact details can be found on the Solartron Mobrey website at www.solartronmobrey.com Main U.K. office and Solartron Mobrey international headquarters is located in Slough, United Kingdom.
  • Page 26 APPENDIX A Radar Level Transmitter - ROD ANTENNA : THREAD MOUNTING IP2028/IM Page 26...
  • Page 27: Appendix A : Rod Antenna : Threaded Mounting

    APPENDIX A ROD ANTENNA : Threaded Mounting General Specifications : Enclosure : Cast Aluminium Paint : Polyester Powder Coat Ambient Temperature : -20°C to +60°C Rating : IP66 / NEMA 4X Mounting : 1.5” BSPT, 1.5” NPT Wetside Material : 316L Stainless Steel / Viton seals on antenna Antenna : PTFE...
  • Page 28: Appendix B : Rod Antenna : Flange Mounting

    APPENDIX B Radar Level Transmitter - ROD ANTENNA : FLANGE MOUNTING IP2028/IM Page 28...
  • Page 29 ROD ANTENNA : Flange Mounting APPENDIX B General Specifications : Enclosure : Cast Aluminium Paint : Polyester Powder Coat Ambient Temperature : -20°C to +60°C Rating : IP66 / NEMA 4X Mounting flange : ANSI 2”, 3”, 4” or 6” ANSI # 150RF (Others on request) 2”, 3”...
  • Page 30: Appendix C : 4" Horn Antenna

    APPENDIX C Radar Level Transmitter - 4” HORN ANTENNA IP2028/IM Page 30...
  • Page 31 APPENDIX C 4” HORN ANTENNA : Flange Mounting only General Specifications : Enclosure : Cast Aluminium Paint : Polyester Powder Coat Ambient Temperature : -20°C to +60°C Rating : IP66 / NEMA 4X Mounting flange : Minimum flange size : ANSI 4”/DN100 (Others on request) ANSI 4”...
  • Page 32: Appendix D : 6" Horn Antenna

    APPENDIX C Radar Level Transmitter - 6” HORN ANTENNA IP2028/IM Page 32...
  • Page 33 6” HORN ANTENNA : Flange Mounting only APPENDIX D General Specifications : Enclosure : Cast Aluminium Paint : Polyester Powder Coat Ambient Temperature : -20°C to +60°C Rating : IP66 / NEMA 4X Mounting flange : Minimum flange size : ANSI 6”/DN150 (Others on request) ANSI 6”...
  • Page 34 Roxboro Group Company Solartron Mobrey GmbH Deutschland tel: 0211/99 808-0 Solartron Mobrey Ltd China tel: 021 6353 5652 Solartron Mobrey sp z oo Polska tel: 022 871 7865 Solartron Mobrey AB Sverige tel: 08-725 01 00 Solartron Mobrey SA France tel: 01.30.17.40.80...

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