Related Manuals for Spectrex SafEye 300 Series
Summary of Contents for Spectrex SafEye 300 Series
- Page 1 300 Series Open-Path Gas Detection System User Guide Document Ref: TM794200, Rev Ae July 2021 6021 Innovation Blvd, Shakopee, MN 55379, USA Phone: +1 (973) 239 Website: www.spectrex.net Email: spectrex.csc.rmtna@emerson.com...
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Page 3: Legal Notice
Legal Notice The SPECTREX SafEye Open Path Gas Detector described in this document is the property of Rosemount. No part of the hardware, software or documentation may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, without prior written permission of Rosemount. -
Page 4: Release History
Release History Date Revision History Prepared by Approved by August 2018 First Release Michal Heller Udi Tzuri December 2018 Second Release Michal Heller Udi Tzuri February 2019 Third Release Michal Heller Udi Tzuri March 2019 Fourth Release Michal Heller Udi Tzuri July 2021 Fifth Release Michal Heller... -
Page 5: Table Of Contents
Table of Contents Legal Notice ....................iii Warranty ....................iii Release History ..................iv Scope....................11 1.1 Product Overview ................11 Technical Description ................13 2.1 Features .................... 13 2.2 Applications ..................13 2.3 Principle of Operation ................14 2.3.1 Definitions of Terms ..............14 2.3.2 Spectral Finger Print .............. - Page 6 3.7.2 Relays ..................26 3.7.3 RS-485 Interface ................26 3.8 Terminals ................... 27 3.8.1 Detector Terminal ................. 27 3.8.2 Light Source Terminals ..............29 3.9 System Setup ..................30 3.9.2 Detector Default Setup ..............31 Technical Specifications ..............33 4.1 General Specifications ................33 4.2 Electrical Specifications ................
- Page 7 6.2 Powering on the System ............... 55 6.3 Safety Precautions ................55 6.4 Signal Verification ................56 6.5 Setting the Baseline (Zero Calibration) ........... 56 6.6 Validating the Installation ..............56 Maintenance Instructions ..............59 7.1 General Maintenance ................59 7.2 Periodic Maintenance ................
- Page 8 List of Figures Figure 1: P/N Definition for the 300 Series ........19 Figure 2: Light Source – Reflector Type ........20 Figure 3: Detector ..............21 Figure 4: Detector Wiring Diagram ..........27 Figure 5: Detector Terminal Board ..........28 Figure 6: Light Source Terminal Board .........
- Page 9 List of Tables Table 1: SafEye 300 IR type Model Information ......18 Table 2: Status Indication ............25 Table 3: Standard 4–20mA Current for the Gas Channel ....26 Table 4: Light Source Terminals ..........29 Table 5: Sensitivity Levels Options 301 SIL ........31 Table 6: Detection Distance Range ..........
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Page 11: Scope
Product Overview Scope Product Overview The SafEye 300 Series is an IR open-path gas detector that detects ambient combustible gases at LEL*m concentrations over a path length from 2ft/0.6m up to 11.5ft/3.5m, even in harsh environments. The shorter path lengths are usually associated with applications in ducts/air intakes to provide a fast response to ingress of flammable gases. -
Page 13: Technical Description
Applications Technical Description Features • Operating distance from 2ft/0.6m up to 11.5ft/3.5m • Simultaneous detection of C –C flammable hydrocarbon gases • High sensitivity and fast detection response • Continuous operation in extreme and harsh environmental conditions • Withstands extreme vibration conditions •... -
Page 14: Principle Of Operation
Principle of Operation Principle of Operation The SafEye system detects gases through a dual spectral range monitoring, analyzing the absorption of radiation caused by gases in the atmosphere, and comparing it (ratio) to background atmospheric absorption. 2.3.1 Definitions of Terms The following list defines gas concentrations measurement terms that are used in this manual: Lower Explosive Limit - The minimum concentration of a substance... -
Page 15: Microprocessor Based
2.3.5 Gas Sensitivity The SafEye 300 series uses wavelengths around the 3.4µ spectral band to measure air flammability potential between the source and detector. At this wavelength, hydrocarbon-based gases have a strong absorption peak. -
Page 16: Gas And Mixture Selection And Setting
Actual selections should be made by the user in consultation with experts to provide for safety requirements. However, for special cases where none of the 4 calibrations are appropriate, SPECTREX, through local agents, can advise on how to calibrate a SafEye detector to any specific gas. -
Page 17: Modbus Rs-485
Principle of 2.3.8 Modbus RS-485 A PC can be used for onsite function programming and setup changes to the detector using RS-485 Modbus-compatible output. This feature enables easy maintenance of local and remote diagnostic tools. During installation, the personal computer with the preinstalled Winhost software, which could be downloaded from the product web page will display all the detector’s parameters and confirm that the installation has been completed successfully. -
Page 18: Product Certification
300 Series Model Product Certification The SafEye 300 Series is approved by the following certifications: 2.4.1 The SafEye 300 series is approved per FM certification: Class I, Div. I, Groups B, C, and D Class II, Div. I, Groups E, F, and G Type 6P, IP66/IP67 2.4.2... -
Page 19: Figure 1: P/N Definition For The 300 Series
300 Series Mo Figure 1: P/N Definition for the 300 Series TM794200 Rev Ae, July 2021... -
Page 20: Description
Description Description The system comprises 2 main units: the light source and the detector. The SafEye 300 Series detects gases over an open path transmitted from the light source to the detector. 2.6.1 Light Source Unit The light source unit emits IR radiation pulses in a collimated beam to the detector unit. -
Page 21: Detector Unit
Description 2.6.2 Detector Unit The detector’s sensors receive the transmitted pulsed radiation signals from the light source (see Figure 3). The detector uses sophisticated signal processing techniques for the detection of the targeted gas. The detector output signals can be sent to a standard control panel or to a central computer. -
Page 23: Operation Mode
Alignment Mode Operation Mode The SafEye system has 3 operation modes: Normal, Alignment, and Zero Calibration. Normal Mode This mode is used for gas detection. The following status signals are possible (see Table 2 for visual indications): Normal The targeted gases have not been detected at warning / alarm levels Warning The targeted gases have been detected at warning levels... -
Page 24: Setting The Baseline (Zero Calibration Mode) - 1Ma Output
Visual Indica Setting the Baseline (Zero Calibration Mode) - 1mA Output This mode zeros the base level from which the detector will read gas. It should only be performed after verifying the installation parameters (refer to Table 10 on page 56) and when there are: •... -
Page 25: Table 2: Status Indication
Visual Indicator Table 2: Status Indication Status Remarks 4–20mA Output Normal Warning 14mA Alarm 19mA Fault 1 Fault 2 Voltage Alignment First receives the Mode intensity compared to the last calibration: The intensity is min. 80% of the last calibration intensity 80%–60% 60% or less After 20 seconds... -
Page 26: Output Signals
PC. The protocol is Modbus-compatible. Communication with the PC is operated through this interface is executed only when used with appropriate host software (available to download for free from the product page on the Spectrex website) SafEye Open Path Detection System User Guide... -
Page 27: Terminals
Terminals Terminals Terminal outputs are described for the detector and the light source. 3.8.1 Detector Terminal Terminal wiring: Figure 4 displays a schematic diagram of the terminals and Figure 5 shows their location. Figure 4: Detector Wiring Diagram TM794200 Rev Ae, July 2021... -
Page 28: Figure 5: Detector Terminal Board
Terminals Description Detector Cover Terminal Board Terminal Screw Securing Cable Figure 5: Detector Terminal Board SafEye Open Path Detection System User Guide... -
Page 29: Light Source Terminals
Terminals 3.8.2 Light Source Terminals Figure 6 shows the terminals board and Table 4 describes their use. Figure 6: Light Source Terminal Board Table 4: Light Source Terminals Light Source Terminal Number Description TM794200 Rev Ae, July 2021... -
Page 30: System Setup
System Setup System Setup The SafEye 300 series is configured according to the default settings. See Detector Default Setup on page 31 It incorporates several functions that can be set by the customer using: • Host software: Refer to Manual TM899050 for programming instructions •... -
Page 31: Detector Default Setup
System Setup 3.9.1.2 Measurement Scales The SafEye 300 series has two selectable measurement scales: normal and high sensivity. Table 5: Sensitivity Levels Options 301 SIL Sensitivity Full Scale Warning Level Alarm Level Normal 2.5 LEL*m 1 LEL*m 1.5 LEL*m High 1 LEL*m 0.4 LEL*m... -
Page 33: Technical Specifications
Electrical Specifications Technical Specifications General Specifications Detected Gases: Simultaneous detection of selected C –C flammable gases Table 6: Detection Distance Range Model No. Distance (ft) 2–11.5 Distance (m) 0.6–3.5 Response Time Typically, 2 sec., max. 5 sec. Spectral Response: 3.0–4.0 µm Table 7: Sensitivity Range Sensitivity... -
Page 34: Electrical Specifications
The 4–20mA is a source configuration. The maximum permitted load resistance is 600ohm. 4.2.2 Communication Communication with the SafEye 300 series can be via RS485 or HART protocol. 4.2.2.1 RS485 The detector is equipped with an RS 485-communication link that can be used in installations with computerized controllers. -
Page 35: Relay Output
Electrical Specifications 4.2.3 Relay Output The detector includes the following three relays. Table 8: Dry Contact Relays Relay Type Normal Maximum Ratings Alarm* SPST N.O. 2A at 30VDC Accessory* SPST N.O. 2A at 30VDC Fault** SPST N.C. 2A at 30VDC * Alarm and accessory relays are normally de-energized open. -
Page 36: Mechanical Specifications
Mechanical Specifications Mechanical Specifications Enclosure: Anodized aluminum with less than 1% magnesium with an epoxy enamel finish Approvals: Class I Div. 1 Groups B, C, and D Class II Div. 1 Groups E, F, and G SIL-2 Per IEC61508 (TÜV) Electrical 2x3/4”... -
Page 37: Environmental Specifications
Environmental Specification Environmental Specifications • High Temperature: Designed to meet MIL-STD-810C, Method 501.1, Procedure II. Operating temperature: +185ºF/+85ºC Storage temperature: +185ºF/+85ºC • Low Temperature: Designed to meet MIL-STD-810C, Method 502.1, Procedure I. Operating temperature: -40ºF/-40ºC Storage temperature: -40ºF/-40ºC • Humidity: Designed to meet MIL-STD-810C, Method 507.1, Procedure IV. -
Page 39: Installation Instructions
Needed for Installation Installation Instructions The detector and light source units can be installed and maintained with the use of general-purpose common tools and equipment. General Considerations 5.1.1 Required Tools The detector can be installed using general-purpose common tools and equipment. -
Page 40: Duct Installation: Surface Preparation
Needed for Installation • Two duct mounts – 1 for the detector and 1 for the light source. • RS485 Communication harness – 794079 • PC/laptop with Windows 10 • Commissioning kit 794247-5: o The commissioning kit includes an alignment toll and check filter. The kit is used for installation and maintenance and then removed. -
Page 41: Figure 7: Drilling Layout Dimensions For Duct Installation
Needed for Installation Description Air duct installation surface Duct mount screw securing hole Opening for detector/light source Figure 7: Drilling Layout Dimensions for Duct Installation TM794200 Rev Ae, July 2021... -
Page 42: Duct Mount Installation
Needed for Installation 5.2.2 Duct Mount Installation The following instructions are applicable for both the light source unit and the detector unit. 1) Unscrew the detector plate holding screws, Figure 8, item A. Figure 8: Duct Mount SafEye Open Path Detection System User Guide... -
Page 43: Figure 9: Duct Mount - Rear View
Needed for Installation 2) Remove the detector plates, Figure 9, item A. Figure 9: Duct Mount – rear view 3) Insert the detector plate screws into the screw holes, item A, Figure 10 as prepared in section 5.2.1 on page 40 TM794200 Rev Ae, July 2021... -
Page 44: Figure 10: Inserting Detector Plate Screws
Needed for Installation Figure 10: Inserting detector plate screws 4) Place the duct mount front plate on the screws that have been threaded through the drilled screw holes as indicated in Error! R eference source not found.. Note: Ensure the duct mount is positioned correctly, using the affixed label. -
Page 45: Figure 12: Tightening The Detector Plate Screws
Needed for Installation 5) Attach washers and nuts to the four detector plate screws, item A, Figure 12 and tighten. Figure 12: Tightening the detector plate screws TM794200 Rev Ae, July 2021... -
Page 46: Duct Mount Alignment
Needed for Installation 5.2.3 Duct Mount Alignment The following instructions are applicable for both the light source unit and the detector unit and require the alignment tool, included in the commissioning kit, Figure 13. Attaching the alignment tool to the duct mount simulates the position in which the device will be attached to the duct mount once the alignment step is complete and the alignment tool removed. -
Page 47: Figure 14: Connecting The Alignment Tool
Needed for Installation 1) Connect the alignment tool plate, item A, Figure 14, to the duct mount plate, item B, Figure 14 by connecting and tightening the four holding screws, item A, Figure 15 Figure 14: Connecting the alignment tool Figure 15: Affixing the alignment tool TM794200 Rev Ae, July 2021... -
Page 48: Figure 16: Adjusting The Detector Plate
Needed for Installation 2) Look at the aim view, item C, Figure 14 and use the vertical, item A Figure 16, and horizontal, item B Figure 16, nuts to adjust the detector plate angle until you see a cross in the middle of the aim view, as shown in Figure 17. -
Page 49: Conduit/Cable Installation
Needed for Installation 5.2.4 Conduit/Cable Installation • To avoid water condensation in the detector, it should be installed with the conduits/electrical entries facing downward. • Use flexible conduits for the last portion connecting to the detector. • When pulling the cables through the conduits, ensure that they are not tangled or stressed. - Page 50 Needed for Installation Align the 2 connector guide pins in the housing section with the correct openings in the housing section. Carefully slide the housing section onto the floating holes in the female D connector. Using the long handled hex key, tighten the 4M6 1.0Px50 screws (14). Insert the 4 threaded plugs (13).
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Page 51: Figure 18: Detector With Cover (Removed)
Needed for Installation Description Housing Cover Screw hole Female D connector Terminal board Male D connector Threaded plug Conduit inlet plug Socket head screw (M6x1.0Px50) Ground terminal screw Screw pan head (No. 4-40UNC-2Ax3/8”) Securing cable Cable tie Figure 18: Detector with Cover (removed) TM794200 Rev Ae, July 2021... -
Page 52: Detector Terminal Wiring
Needed for Installation 5.2.6 Detector Terminal Wiring The detector contains a terminal board consisting of two parts. 5.2.6.1 Power Supply: The input power is supplied to Terminal 1. The return is connected to Terminal 2. Note: Ensure that the detector unit receives a minimum of 18VDC and does not exceed 32VDC. -
Page 53: Light Source Wiring
Light Source Wiring Light Source Wiring 5.3.1 Power Supply Input power is supplied to Terminal 1. The return is connected to Terminal 2 (see Figure 19). Note: Ensure that the light source unit will receive a minimum of 18VDC and does not exceed 32VDC. Pre-wiring requirements and wiring requirements are identical to the appropriate requirements for the detector, as described in Appendix A. -
Page 54: Figure 19: Light Source - Open View
Light Source Wiring Description Housing Grounding wire Cover Securing cable Conduit/cable inlet plugs Screw hole Ground terminal screw Figure 19: Light Source - Open View SafEye Open Path Detection System User Guide... -
Page 55: Operating Instructions
Operating Instructions SafEye Operation Once the system is positioned, it will monitor for possible specified gases, automatically sending signals to a standard control panel or a PC. This chapter describes the alignment, calibration, and operation of the detector. Note: Accurate alignment is essential for proper operation of the SafEye system. -
Page 56: Signal Verification
Validating the Installation Use the check filter, included in the commissioning kit, to verify that the SafEye 300 Series has been properly installed. Caution: Automatic activation or any external device that should not be activated during the calibration check should be disconnected. - Page 57 Validating the Installation ➢ To perform a check of the unit: Position the check filter in front of the SafEye 300 Series detector. The check filter window must be placed in between the base plate and the alignment plate, centered over the viewing window of the detector.
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Page 59: Maintenance Instructions
Maintenance Instructions General Maintenance The SafEye system requires only simple periodic maintenance to provide satisfactory service and achieve maximum performance. The detector and source units can be maintained with the use of common tools and equipment. Note: The maintenance can be performed through RS-485. For more details, refer to Manual TM899050. - Page 60 Periodic Maintenance Signal 2 2.5V Gain 0 1V Gain 1 1.5V Gain 2 Ratio 1 0.6-2 0.6-2 0.6-2 Ratio 2 0.6-2 0.6-2 0.6-2 NQRat 1 0.95 – 1.05 NQRat 2 0.95 – 1.05 0 LEL x m Temp. Up to 25° C beyond ambient temp. Voltage 32VDC >...
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Page 61: Routine Optical Surface Cleaning
Periodic Maintenance 7.2.1 Routine Optical Surface Cleaning The optical surfaces concerned are the source and detector viewing windows. ➢ To clean the optical window: Turn off the power to the SafEye detector and source. Where dust or dirt has accumulated on the optical surface, clean the surface with a small, soft-bristle brush. -
Page 62: Signal Verification
Periodic Maintenance Setting the Baseline (Zero Calibration on page 56). Perform functional check (see Validating the Installation on page 56). 7.2.2 Signal Verification The Signal Intensity Check determines if there is a misalignment or if the light source signal is wearing over a period of time. Clean the optical surfaces prior to performing this check (see Routine Optical Surface Cleaning on page 61). -
Page 63: Troubleshooting
Troubleshooting Problem Cause Solution LEDs are off and fault is Power is not supplied to Supply power to the indicated at 0mA level the detector detector Both LEDs are on at Fault 2 Bring the detector unit for yellow and fault is service indicated at 0mA level Both LEDs are flashing at... -
Page 65: Appendix A: Wire Selection Tables
Appendix A: Wire Selection Tables General Instructions for Electrical Wiring • mA output or relay wiring: Refer to Table 11 to determine the required wire gauge for general wiring and to calculate the permitted voltage fall with respect to loads current, wire gauge, and length of wires. -
Page 66: Table 12: Wiring Length In Feet/Meters
General Instructions for Electrical Wiring Table 12: Wiring Length in Feet/Meters No. of Recommended Wire Diameter Power Supply Detectors Range (VDC) 22–32 22–32 22–32 20–32 20–32 4 and less 20–32 Feet Meters Max. length from power supply to last detector SafEye Open Path Detection System User Guide... -
Page 67: Appendix B: Wiring Option Configurations
Appendix B: Wiring Option Configurations Figure 20: Detector Wiring Diagram TM794200 Rev Ad, March 2019... -
Page 68: Figure 21: 4-20Ma Source Output
Wiring Option Configurations Figure 21: 4–20mA Source Output Figure 22: Typical 4 Wire Controller SafEye Open Path Detection System User Guide... -
Page 69: Rs-485 Communications Network
RS-485 Communications Network RS-485 Communications Network By using the RS-485 network capability of the SafEye detector and additional software, it is possible to connect up to 32 detectors in an addressable system with 4 wires only (2 for power and 2 for communication). -
Page 71: Appendix C: Outline Drawings
Appendix C: Outline Drawings TM794200 Rev Ad, March 2019... - Page 72 Outline Drawings SafEye Open Path Detection System User Guide...
- Page 73 Outline Drawings TM794200 Rev Ae, July 2021...
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Page 75: Appendix D: Special Conditions To Comply With Sil-2 Requirements
Guidelines for Configuration, Installation, Operation, and Maintenance Appendix D: Special Conditions to Comply with SIL-2 Requirements This appendix details the special conditions to comply with the requirements of EN 61508 for SIL-2. The SafEye 300 can be used in low or high demand mode applications. -
Page 76: Alarm Operation Using The 4-20Ma Signal Current
Special Conditions A.4.2 Alarm Operation Using the 4–20mA Signal Current • The connected controller has to monitor the 4–20mA signal current for valid values (see Output Signals on page 26). Mode Normal Warning Alarm Continuous current with low 4 mA 7.2 mA 13.6 mA sensitivity (Full Scale: 5 LEL*m) -
Page 80: Technical Support
Technical Support For technical assistance or support, contact: 6021 Innovation Blvd, Shakopee, MN 55379 , Phone: +1 (973) 239 8398 Email: spectrex.csc.rmtna@emerson.com Website: www.spectrex.net...
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