Honeywell Sensepoint RFD Technical Manual

0-20% lel and 0-100% lel remote flammable detector

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Technical Manual
Sensepoint RFD
(0-20% LEL and 0-100% LEL)
Remote Flammable Detector

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Summary of Contents for Honeywell Sensepoint RFD

  • Page 1 Technical Manual Sensepoint RFD (0-20% LEL and 0-100% LEL) Remote Flammable Detector...
  • Page 2: Safety

    WARNINGS Sensepoint RFD is designed for installation and use in Zone 1 or 2 hazardous areas in Europe and Class 1 Division 1 or 2 area applications in North America. Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned.
  • Page 3: Information

    2 Information In rush current is dependant on the type of power supply used. Typical in rush current for Sensepoint RFD is 600mA. Measure the in rush current using the specific power supply before installation to ensure suitability for your application.
  • Page 4: Table Of Contents

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 3 Table of contents 1 Safety......................2 2 Information .....................3 3 Table of contents ...................4 4 Introduction ....................5 4.1 Transmitter....................5 4.2 Handheld Remote Interface (ZHC1) ............6 4.3 Gas sensors....................6 4.3.1 Sensepoint flammable gas sensors ............6 4.3.2 705 Flammable gas sensors ..............7...
  • Page 5: Introduction

    RFDMAN MAN0843 Issue 3 4 Introduction The Sensepoint RFD transmitter allows the user to either directly or remotely mount a flammable gas sensor from the Sieger Sensepoint and 705 sensor range. The remote sensors can be located up to 45 meters (147 feet) from the transmitter.
  • Page 6: Handheld Remote Interface (Zhc1)

    4.3 Gas sensors Sensepoint RFD is designed to work with the flammable sensors from the Sieger Sensepoint and 705 ranges. The Sensepoint range is ATEX approved for use throughout Europe. The 705 range is UL approved for use in North America.
  • Page 7: 705 Flammable Gas Sensors

    0-20% LEL up to 0-100% LEL depending on transmitter or controller. Details of connecting these sensors to the Sensepoint RFD transmitter are given in sections 5 and 6. For sensor more specific details, refer to their individual manuals (00705M5002 standard temperature version and 00705M5010 high temperature version).
  • Page 8: Installation

    5 Installation WARNINGS Sensepoint RFD is designed for installation and use in Zone 1 or 2 hazardous areas in Europe and Class 1 Division 1 or 2 area applications in North America. Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned.
  • Page 9: Mounting And Location Of Transmitter And Sensors

    The agreement reached on the location of sensors should be recorded. 5.2 Mounting the transmitter The Sensepoint RFD transmitter is supplied with a mounting bracket. The bracket can be adjusted to fix the transmitter to a wall, or to a mounting pipe (horizontal or vertical), 20.0-80.0mm (0.8 to 3.1 inches).
  • Page 10: Mounting The Sensor

    4. Mount the bracket to a pole or wall using appropriate fixings. 5.3 Mounting the sensor The flammable gas sensors that can be used with the Sensepoint RFD transmitter can be mounted directly to the bottom entry or remotely to a suitable junction box.
  • Page 11: Directly Mounted Sensor

    RFDMAN MAN0843 Issue 3 5.3.1 Directly mounted sensor To mount a sensor directly to the Sensepoint RFD transmitter follow the procedure below. 1. Ensure that the ¾” NPT to M20 adaptor is fitted to the bottom entry if using a sensor with an M20 thread, or is removed if using a sensor with a ¾”...
  • Page 12: Electrical Connections

    Electrical connections WARNINGS Sensepoint RFD is designed for installation and use in Zone 1 or 2 hazardous areas in Europe and Class 1 Division 1 or 2 area applications in North America. Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned.
  • Page 13: Wiring Schematics

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 6.1 Wiring schematics Caution: All electrical connections should be made in accordance with any relevant local or national legislation, standards or codes of practice. 6.1.1 Sensors with 20% LEL and 100% LEL ranges The connection details for the Sensepoint and Model 705 sensors with a detection range of 0-100% LEL or 0-20% LEL are shown in diagram 7 below.
  • Page 14: Terminal Connections

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 6.2 Terminal connections Note: Ensure that none of the wires in the terminal area cause an obstruction when refitting the Display Module. Ensure that the socket on the Display Module is fully engaged in the Display Module Connector on the Terminal Module.
  • Page 15: Power

    RFDMAN MAN0843 Issue 3 6.3 Power The Sensepoint RFD transmitter requires a power supply from the controller of between 12Vdc and 30Vdc. Ensure that a minimum supply of 12Vdc is measured at the sensor, taking into account the voltage drop due to cable resistance.
  • Page 16 SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 Cable to Transmitter Diagram 9: Controller Grounding Diagram 10: System grounding...
  • Page 17: Default Configuration

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 7 Default configuration The Sensepoint RFD transmitter is supplied with the following default configuration. Function Value/Setting Meaning Sensor Type Sensepoint standard temp 0-100% LEL Signal output ≥0.0<4.0mA Fault (refer to table 5 section 8.2 for further details) 4.0mA to 20.0mA...
  • Page 18: Normal Operation

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 8 Normal Operation Sensepoint RFD is managed using a menu system, shown on its display screen, which is configured by a Handheld Remote Interface (ZHC1). 8.1 Display Screen The display features an LCD, an IR receiver, a LED indicator and a label identifying the detector type.
  • Page 19: System Status

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 8.2 System Status Display indications, current output and relay states for various operational conditions are shown in the following table. For further details of error messages and trouble shooting see section 12.
  • Page 20: Handheld Remote Interface (Zhc1)

    8.3 Handheld Remote Interface (ZHC1) The Intrinsically Safe (IS) battery-powered Handheld Remote Interface uses infrared signals to interface with the Sensepoint RFD transmitter. The unit operates at a range of up to 1m from the transmitter, and at an angle of +/-15 degrees (viewed from the front center line of the display screen).
  • Page 21: Menu Functions

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 The transmitter automatically returns to normal gas detection mode from any configuration menu if a button is not pressed for 30 minutes (unless the menu Timeout option is disabled, see the P-07 menu option).
  • Page 22: First Time Switch On

    When in calibration mode the current output from the detector is inhibited (2mA default) to avoid false alarms. Note: Honeywell Analytics recommend the maximum time between calibrations should be no more than 6 months. It is recommended that the calibration is made where the sensor/transmitter have stabilized with their local environment.
  • Page 23 Should the target gas not be listed in the selected sensor manual contact your local Honeywell Analytics representative for more information. Sensepoint RFD is limited to the star ratings and ranges listed in the table below: RFD selected Gas star...
  • Page 24 SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 Calibration procedure: 1. Press the Menu button on the Handheld Remote Interface and the P-00 set zero menu is displayed. 2. Ensure there is clean air (free of hydrocarbon gas) present at the detector.
  • Page 25: User Configuration

    RFDMAN MAN0843 Issue 3 10 User configuration Sensepoint RFD has a menu system to calibrate the detector and configure a range of user settings. The procedure to calibrate (zero and span the system) are detailed in section 9.1. The configuration menus are accessed using the Handheld Remote Interface.
  • Page 26: Set Relay 2

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 10.4 P-05 Set relay 2 1. Select the P-05 set relay 2 menu. 2. The display shows either: r 2-d (relay 2 normally de-energized) r 2-e (relay 2 normally energized) 3. Use the Up and Down buttons on the Handheld Remote Interface to select the required setting.
  • Page 27: Set Inhibit Current And Timeout

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 10.6 P-07 Set inhibit current and timeout 1. Select the P-07 set inhibit current and timeout menu. 2. The display shows either: 2 (inhibit current set to default 2mA) 4 (inhibit current set to 4mA) 3.
  • Page 28: General Maintenance

    Disposal should be according to local waste management requirements and environmental legislation. Alternatively, sensors may be securely packaged and returned to Honeywell Analytics clearly marked for environmental disposal. Substitution of Handheld Remote Interface components may impair its Intrinsic Safety (IS).
  • Page 29: Sensor Replacement

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 11.2 Sensor replacement The Sensepoint and 705 flammable sensors that are used with the Sensepoint RFD transmitter have no serviceable parts. When they have reached the end of their operational life, simply replace the sensor.
  • Page 30: Error Codes And Troubleshooting

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 12 Error Codes and Troubleshooting The table below provides details of possible error codes and the suggested troubleshooting and corrective action. SENSEPOINT RFD FAULT AND TROUBLESHOOTING ERROR NAME DESCRIPTION REASON TROUBLESHOOTING CODE...
  • Page 31: General Specifications

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 13 General specifications Sensepoint RFD Transmitter 3-wire, 4-20mA, flammable gas transmitter for use with remotely or directly fitted flammable gas sensors. For the protection of personnel and plant from flammable gas hazards. IR Handheld Remote Interface for one-man non intrusive operation.
  • Page 32: Ordering Information

    RFDMAN MAN0843 Issue 3 14 Ordering information Sensepoint RFD Transmitter Part number Description SPRFDADX Sensepoint RFD 0-20% LEL / 0-100% LEL approved to ATEX standards SPRFDUDX Sensepoint RFD 0-20% LEL / 0-100% LEL approved to UL standards Detectors 0-100%LEL version sensors: 00705-A-1733 705 Flammable Sensor –...
  • Page 33: Warranty Statement

    Honeywell Analytics reserves the right to charge for any site attendance where any fault is not found with he the equipment. Honeywell Analytics shall not be liable for any loss or damage whatsoever or howsoever occasioned which may be a direct or indirect result of the use or operation of the Contract Goods by the Buyer or any Party.
  • Page 34: Ce Certificate

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 16 CE Certificate A copy of the EC Declaration of conformity is shown below.
  • Page 35: Certification Nameplates

    SENSEPOINT RFD OPERATING MANUAL RFDMAN MAN0843 Issue 3 Certification Nameplates Diagram 15: ATEX certification nameplate Diagram 16: UL certification nameplate...
  • Page 36 Fax: +1 847 955 8208 Fax: +1 847 955 8208 detectgas@honeywell.com detectgas@honeywell.com Asia Pacific Asia Pacific Honeywell Analytics Asia Pacific Honeywell Analytics Asia Pacific #508, Kolon Science Valley (1) #508, Kolon Science Valley (1) 187-10 Guro-Dong, Guro-Gu 187-10 Guro-Dong, Guro-Gu...

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