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Thorne & Derrick SafEye Quasar 900 User And Maintenance Manual

Open-path gas detection
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Quasar 900
Open-Path Gas Detection System
User's and Maintenance Manual
ATEX, IECEx
Factory Mutual
Ex II 2 (2) GD,
Class I Div. 1 Groups B, C, D
Ex d e ib [ib Gb] IIB+H2 T4 Gb
Class II Div. 1 Groups E, F, G
Ex tb IIIC T135°C Db
Document Ref: TM 888200, Rev. H, August 2013
218 Little Falls Rd., Cedar Grove, NJ 07009 USA;
Phone: +1 (973) 239 8398
Fax: +1 (973) 239 7614
Web-Site:
www.spectrex.net
; Email:
spectrex@spectrex.net

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  • Page 1 Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual ATEX, IECEx Factory Mutual Ex II 2 (2) GD, Class I Div. 1 Groups B, C, D Ex d e ib [ib Gb] IIB+H2 T4 Gb Class II Div. 1 Groups E, F, G Ex tb IIIC T135°C Db Document Ref: TM 888200, Rev.
  • Page 2 SafEye Quasar 900 Gas Detector...

  • Page 3: Legal Notice

    Legal Notice The SafEye monitoring system described in this document is the property of Spectrex, Inc. 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 Spectrex, Inc.

  • Page 4: Release History

    SafEye Quasar 900 Gas Detector Release History Date Revision History Prepared by Approved by February First Release Ian Buchanan Eric Zinn June 2013 Second release Ian Buchanan Eric Zinn August 2013 Third Release Ian Buchanan Eric Zinn Release History...

  • Page 5: About This Guide

    About this Guide This manual describes the Quasar 900 Open-Path Gas Detection System and its features and provides instructions on the installation, operation and maintenance. This guide includes the following chapters and appendices:  Chapter 1, Scope, provides a general introduction and overview of the product and the guide, with a brief description of its content.

  • Page 6: Abbreviations And Acronyms

    SafEye Quasar 900 Gas Detector Abbreviations and Acronyms Abbreviation Meaning ATEX Atmosphere Explosives American Wire Gauge Built In Test Electromagnetic Compatibility End of Line Field of View HART Highway Addressable Remote Transducer- communication protocol Immune at Any Distance IECEx International Electrotechnical Commission Explosion Isopropyl Alcohol Infrared Jet Fuel...

  • Page 7: Table Of Contents

    Table of Contents Quasar 900 Open-Path Gas Detection System User's and Maintenance Manual ............... i Legal Notice ....................iii Release History ....................iv About this Guide ....................v Abbreviations and Acronyms ................vi Scope ......................1 Product Overview ................... 1 Technical Description ................
  • Page 8 SafEye Quasar 900 Gas Detector Operating Modes..................13 Operational Modes ................13 3.1.1 Normal Mode .................. 13 3.1.2 Maintenance Call Mode (3mA Output) ..........13 3.1.3 Fault Mode ..................14 3.1.4 Zero Calibration Mode (1mA Output) ..........14 Visual Indicators ................... 15 Output Signals ..................
  • Page 9 TM 888200 Rev (H), August 2013 5.2.4 The Source and Detector ..............26 5.2.5 Guidance Tips for Gas Detector Locations........... 26 Preparations for Installation ..............26 Certification Instructions ................ 28 Conduit/Cable Installation ..............29 Detector/Source Mounting ..............29 5.6.1 Tilt Kit P/N 888270................29 5.6.2 Detector/Source Installation .............
  • Page 10 SafEye Quasar 900 Gas Detector Accessories ....................55 Tilt Mount P/N 888270 ................55 Pole Mount (U-Bolt 5 inch) P/N 799225 ............ 55 Commissioning Kit P/N 888247 ............... 55 RS485 Hand-Held Diagnostic Unit P/N 799810 .......... 55 HART Hand-Held Diagnostic Unit P/N 888810 ........... 56 HART Hand-Held Harness Kit P/N 888815 ..........
  • Page 11 TM 888200 Rev (H), August 2013 List of Figures Figure 1: P/N Definition of Quasar 900 ..............9 Figure 2: Flash Source ..................10 Figure 3: Detector ..................... 11 Figure 4: Tilt Mount ................... 31 Figure 5: Detector and Tilt Mount Assembly ............32 Figure 6: Detector with Cover Removed ...............
  • Page 12 SafEye Quasar 900 Gas Detector List of Tables Table 1: Gas Concentrations Measurement Terms ..........4 Table 2: Model Numbers and Installation Distances ..........8 Table 3: Detector LED Indications ............... 15 Table 4: Source LED Indications ................15 Table 5: Standard (default) 0-20mA Current for the Gas Channel ......16 Table 6: Detector Default Set Up .................

  • Page 13: Scope

    Quasar 900 detects ambient combustible gases over a path length of up to 660ft. (200 m), even in harsh environments where dust, fog, rain, snow or vibration can cause a high reduction of signal. The SafEye Quasar 900 can maintain operation in up to 90% signal obscuration and ±0.5 degree of misalignment.
  • Page 14 SafEye Quasar 900 Gas Detector Product Overview...

  • Page 15: Technical Description

    Technical Description ➣ In this chapter… Features page 3 Applications page 4 Principle of Operation page 4 Product Certification page 7 Models and Types page 8 Description page 9 Features  Long Range Gas Detection up to 660ft (200m)  Simultaneous detection of C1-C8 flammable gases ...

  • Page 16: Applications

    SafEye Quasar 900 Gas Detector Applications The Quasar 900 system may be used to monitor flammable gas concentration in various applications, such as:  Petrochemical, pharmaceutical and other chemical storage and production areas.  Flammable and toxic chemical storage sites and hazardous waste disposal areas.

  • Page 17: Optical Path

    2.3.5 Gas Sensitivity The SafEye Quasar 900 Model uses wavelengths around 2.3µ spectral band to measure air flammability potential between the source and detector. At this wavelength, all hydrocarbon materials have an absorption peak. This enables the detector to achieve both regular sensitivity of 0-5 LEL.m.

  • Page 18: Heated Optics

    SafEye Quasar 900 Gas Detector 2.3.8 Heated Optics SafEye Quasar includes heated optics for the Detector and source. The heater increases the temperature of the optical surface by 5-8°F (3-5°C) above the ambient temperature to improve performance in icing, condensation and snow conditions. The heated optics is configured to automatically operate when the change in temperature requires the heating (default).

  • Page 19: Modbus Rs-485

    TM 888200 Rev (H), August 2013 The handheld unit can be used: For on-site function programming and set up changes to the Detector. During installation, the handheld unit will display all the detector’s parameters and confirm that the installation has been completed successfully.

  • Page 20: Fm / Fmc

    SafEye Quasar 900 Gas Detector 2.4.2 FM / FMC The Quasar 900 is approved to FM / FMC Explosion Proof per:  Class I, Div. 1 Group B, C and D, T6 -58°F (-50°C) ≤ Ta ≤ 149°F (65°C)  Dust Ignition Proof –...

  • Page 21: Description

    TM 888200 Rev (H), August 2013 Figure 1: P/N Definition of Quasar 900 Description The SafEye comprises two main units:  The Flash Infrared Source (Transmitter)  The Infrared Detector (Receiver) Quasar 900 detects gases over an open path transmitted from the Flash Source to the Detector.

  • Page 22: Flash Source Unit

    SafEye Quasar 900 Gas Detector 2.6.1 Flash Source Unit The Flash Source unit emits IR radiation pulses at the rate of two pulses per second. The pulse width (5-10µsec) is very powerful. The front of the source SafEye has a lens that collimates the IR beam for maximum intensity.

  • Page 23: Detector Unit

    TM 888200 Rev (H), August 2013 2.6.2 Detector Unit The Detector receives the transmitted pulsed radiation signals from the Flash Source. The signals are then amplified and fed into an analog to digital signal converter to be processed by the internal microprocessor. When the signals drop below a prescribed level, the internal microprocessor will compensate for them.
  • Page 24 SafEye Quasar 900 Gas Detector Description...

  • Page 25: Operating Modes

    Operating Modes ➣ In this chapter… Operational Modes page 13 Visual Indicators page 15 Output Signals page 15 System Setup page 16 Operational Modes The Quasar 900 has four operational modes:  Normal Mode, page 13  Maintenance Call Mode (3mA Output), page 13 ...

  • Page 26: Fault Mode

    SafEye Quasar 900 Gas Detector 3.1.3 Fault Mode In the Fault status, there are three fault types:  Fault 1 (2mA Output) – Non critical If this occurs, it is due to blockage, very low signal or in the case of partial obscuration or full beam block and detection is no longer possible.

  • Page 27: Visual Indicators

    TM 888200 Rev (H), August 2013 Visual Indicators One 3-color LED indicator is located in the back side of the detector/source and can be seen through the back cover window. See Figure 2 and Figure 3, item 11. The detector statuses are listed in Table 3. Table 3: Detector LED Indications Detector Status LED Color...

  • Page 28: Rs-485 Interface

    Detection Setup Function, page 17  Detector Default Setup, page 18 3.4.1 Detection Function Programming The SafEye Quasar 900 incorporates several functions that can be set by the customer using:  Host software. Refer to manual TM 888050 for programming instructions.

  • Page 29: Detection Setup Function

    TM 888200 Rev (H), August 2013 3.4.2 Detection Setup Function See Detector Default Setup, page 18 for default settings. Setup includes the following options:  Gas Calibration, page 17  Zero Calibration, page 17  Address Setup, page 17  Heated Optic Operation, page 17 3.4.2.1 Gas Calibration...

  • Page 30: Detector Default Setup

    SafEye Quasar 900 Gas Detector 3.4.3 Detector Default Setup The Detector has 8 functions that can be programmed according to the customer requirement at factory or at customer facility using a software Host or a handheld unit. The standard set up is as follows: Table 6: Detector Default Set Up Function Setup...

  • Page 31: Technical Specifications

    Technical Specifications ➣ In this chapter… General Specifications page 19 Electrical Specifications page 20 Mechanical Specifications page 21 Environmental Specifications page 22 General Specifications Detected Gases: Simultaneous detection of C1-C8 flammable gases Detection Distance range: Table 8 Table 8: Detection Distance Range Min.

  • Page 32: Electrical Specifications

    SafEye Quasar 900 Gas Detector Immunity to false Does not produce false alarm and is not alarm: influenced by Solar Radiation, Hydrocarbon Flames and other external IR Radiation Sources. Electrical Specifications Operating Voltage: 18-32 VDC 4.2.1 Power Consumption Table 9: Detector and Source Maximum Power Consumption Without Heated With Heated Optic (Max.)

  • Page 33: Mechanical Specifications

    TM 888200 Rev (H), August 2013 Through the HART Protocol the detector can:  Display set-up  Reconfigure set-up  Display detector status and definition  Perform detector diagnostic  Troubleshooting Mechanical Specifications Enclosure: The Detector, Source and tilt mount are St. St. 316 Electro chemical and passivized coating.

  • Page 34: Environmental Specifications

    SafEye Quasar 900 Gas Detector Environmental Specifications The SafEye system is designed to withstand harsh environmental conditions. The source and detector units compensate for adverse conditions while maintaining accuracy. 4.4.1 High Temperature Designed to meet MIL-STD-810C, method 501.1 procedure II. Operating Temperature: +149 ºF (+65 ºC) Storage Temperature:...

  • Page 35: Electromagnetic Compatibility (Emc)

    TM 888200 Rev (H), August 2013 4.4.7 Electromagnetic Compatibility (EMC) This product is in conformance with EMC per EN50270: Radiated Emission: EN55022 Conducted Emission: EN55022 Radiated Immunity: EN61000-4-3 Conducted Immunity: EN61000-4-6 ESD: EN61000-4-2 Burst: EN61000-4-4 Surge: EN61000-4-5 Magnetic Field: EN61000-4-8 Environmental Specifications...
  • Page 36 SafEye Quasar 900 Gas Detector Environmental Specifications...

  • Page 37: Installation Instructions

    Installation Instructions ➣ In this chapter… Introduction page 25 General Considerations page 25 Preparations for Installation page 26 Certification Instructions page 28 Conduit/Cable Installation page 29 Detector/Source Mounting page 29 Detector Wiring page 30 Detector Terminal Wiring page Flash Source Wiring page 34 Introduction The Detector and Flash Source units can be installed and maintained with...

  • Page 38: Site Requirements

    SafEye Quasar 900 Gas Detector 5.2.3 Site Requirements The installation position of the SafEye system must take into account if the gas being monitored is heavier or lighter than air, and the individual site requirements. The site selected must give the Detector a direct view to the Source.
  • Page 39 TM 888200 Rev (H), August 2013 The Commissioning kit includes Function Check Filter and the Telescope Kit, which is used during each SafEye installation and then removed. They can be reused for all other SafEye installations on the site. Therefore, only one set is provided for several detectors. ...

  • Page 40: Certification Instructions

    SafEye Quasar 900 Gas Detector Certification Instructions Warning: Do not open the detector, even when isolated, when flammable atmosphere is present. Use the following certification instructions:  The cable entry point may exceed 182°F (83°C) suitable precautions should be taken when selecting the cable. ...

  • Page 41: Conduit/Cable Installation

    TM 888200 Rev (H), August 2013 Conduit/Cable Installation The conduit and cable installation must comply with the following guidelines: To avoid water condensation in the detector, it should be installed with the conduits/cable entries facing downwards. Use flexible conduits/cables for the last portion connecting to the detector.

  • Page 42: Detector Wiring

    SafEye Quasar 900 Gas Detector Place the Detector, with its conduit/cable inlets pointing downwards on the Detector holding plate of the Tilt Mount (item 2). Secure the Detector with M10 x 1.5 screw with No. M10 spring washers (9,10). Secure the detector to the Tilt Mount use Hex Key No. 7 for M10 x 1.5 screw (item 9).

  • Page 43: Figure 4: Tilt Mount

    TM 888200 Rev (H), August 2013 Tilt Mount Holding Plate Vertical Fine Alignment Tightening Screw Detector/Source Holding Vertical Crude Alignment Plate Tightening Screw Horizontal Crude Alignment Vertical Find Alignment Screw Tightening Screw Horizontal Fine Alignment Horizontal Fine Alignment Tightening Screw Screw Figure 4: Tilt Mount Detector Wiring...

  • Page 44: Figure 5: Detector And Tilt Mount Assembly

    SafEye Quasar 900 Gas Detector Tilt Mount Holding Plate Detector Tightening Screw Detector/Source Holding Detector Tightening Washer Plate Horizontal Crude Alignment Detector Tightening Screw Horizontal Fine Alignment Telescope Tightening Screw Vertical Fine Alignment Telescope Tightening Bolt Tightening Screw Vertical Crude Alignment Detector Back Cover Tightening Screw Vertical Fine Alignment...

  • Page 45: Figure 6: Detector With Cover Removed

    TM 888200 Rev (H), August 2013 Housing Internal Earth Connection Terminal Board Connection to Handheld Unit Earth Terminal Detector Holding Plate Inlet Conduit Figure 6: Detector with Cover Removed Detector Wiring...

  • Page 46: Detector Terminal Wiring

    SafEye Quasar 900 Gas Detector Detector Terminal Wiring The Detector has six wiring terminals. The following describes the function of each electrical terminal of the detectors. Table 11: Wiring Options Terminal Function Power +24V DC Return +24V DC 0-20mA (Input) 0-20mA (Output) RS-485 (+) RS-485 (-)

  • Page 47: Terminal Wiring

    TM 888200 Rev (H), August 2013 5.9.2 Terminal Wiring The Flash Source contains six wiring terminals. Table 12: Flash Source Wiring Options Terminal Function Power +24V DC Return +24V DC Spare Spare RS-485 (+) RS-485 (-) Housing Internal Earth Connection Terminal Board Earth Terminal Detector Holding Plate...
  • Page 48 SafEye Quasar 900 Gas Detector Flash Source Wiring...

  • Page 49: Operating Instructions

    Operating Instructions ➣ In this chapter… SafEye Operation page 37 Alignment of Unit page 37 Powering up the System page 38 Safety Precautions page 39 Signal Verification page 39 Zero Calibration page 40 Functional Check of Unit page 41 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.

  • Page 50: Powering Up The System

    SafEye Quasar 900 Gas Detector Install the Telescope Assembly (12) on the detector/source front. Fasten the Telescope with Fastening Screws (13). Crude Alignment Use ¼” Allen screw driver for all alignment screws Loosen screws 5, 6 Approximately aim the source horizontally toward the detector Tighten screw 5 Loosen screws 3, 4 Approximately aim the source vertically toward the detector...

  • Page 51: Safety Precautions

    TM 888200 Rev (H), August 2013 Safety Precautions After powering up, the Detector requires minimal attention in order to function properly, but the following should be noted: Follow the instructions in the Manual; refer to the drawings and specifications issued by the manufacturer. Do not open the detector/source housing while power is supplied.

  • Page 52: Zero Calibration

    SafEye Quasar 900 Gas Detector Zero Calibration Zero calibration must be done after:  Installation.  Realignment.  Window Cleaning.  Any change in Detector or Source position. Precise alignment must be performed prior to the zero calibration procedure. Zero calibration should be performed in good weather conditions with insignificant gas concentrations in the surrounding environment or indoors.

  • Page 53: Functional Check Of Unit

    TM 888200 Rev (H), August 2013 Functional Check of Unit The SafEye system has been calibrated at the factory for the User's specific gas or vapor detection requirements. The following procedure validates the functional operation of the system. The Functional Check Filter is a convenient operational check used to confirm that response has not changed from previous readings.
  • Page 54 SafEye Quasar 900 Gas Detector Functional Check of Unit...

  • Page 55: Maintenance Instructions

    Periodic Maintenance page 43 General Maintenance The SafEye Quasar 900 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. Record the periodic test results in Maintenance Logbook with a copy of the delivery form inside.

  • Page 56: Routine Optical Surface Cleaning

    SafEye Quasar 900 Gas Detector 7.2.1 Routine Optical Surface Cleaning The SafEye system, being an optical device, must be kept as clean as possible. The optical surfaces concerned are the Source and Detector viewing windows. ➣ To clean the optical window, proceed as follows: Turn off the power to the SafEye detector and source.

  • Page 57: Troubleshooting

    Troubleshooting Table 14: Troubleshooting Problem Cause Solution “Maintenance call” Poor alignment Perform alignment status or R and S are Dirt on the Clean the window below 2V DC at Gain window Poor light source Replace the light source Detector fault Replace/repair Detector NQRat below the Gas in the path...
  • Page 58 SafEye Quasar 900 Gas Detector Periodic Maintenance...

  • Page 59: Appendices

    Appendices Appendices...
  • Page 60 SafEye Quasar 900 Gas Detector Appendices...

  • Page 61: A Wiring Configurations

    Wiring Configurations ➣ In this appendix… RS-485 Communication Network page 53 Figure 9: Detector Wiring Terminal RS-485 Communication Network...

  • Page 62: Figure 10: Source Wiring Terminal

    SafEye Quasar 900 Gas Detector Figure 10: Source Wiring Terminal RS-485 Communication Network...

  • Page 63: Figure 11: 0-20Ma Sink 4-Wire

    TM 888200 Rev (H), August 2013 Figure 11: 0-20mA Sink 4-Wire Figure 12: 0-20mA Non-isolated Sink 3-Wire RS-485 Communication Network...

  • Page 64: Figure 13: 0-20Ma Source 3-Wire

    SafEye Quasar 900 Gas Detector Figure 13: 0-20mA Source 3-Wire RS-485 Communication Network...

  • Page 65: Rs-485 Communication Network

    TM 888200 Rev (H), August 2013 RS-485 Communication Network By using the RS-485 network capability of the SafEye Quasar 900 detector and additional software, it is possible to connect up to 32 Detectors in an addressable system with four (4) wires only (2 for power and 2 for communication).
  • Page 66 SafEye Quasar 900 Gas Detector RS-485 Communication Network...

  • Page 67: Tilt Mount P/N 888270

    Accessories ➣ In this appendix… Tilt Mount P/N 888270 page 55 Pole Mount (U-Bolt 5 inch) P/N 799225 page 55 Commissioning Kit P/N 888247 page 55 RS485 Hand-Held Diagnostic Unit P/N page 55 799810 HART Hand-Held Diagnostic Unit P/N page 56 888810 HART Hand-Held Harness Kit P/N 888815 page 56...

  • Page 68: Hart Hand-Held Diagnostic Unit P/N 888810

    SafEye Quasar 900 Gas Detector This is an I.S. approved Hand-Held with I.S. harness and converter to suit the detector and programmed with a special host for maintenance and commissioning. HART Hand-Held Diagnostic Unit P/N 888810 HART Hand-Held diagnostic unit fitted with harness to the quick plug connection which provides easy and economical connection.

  • Page 69: Technical Support

    Technical Support For all technical assistance or support, contact: 218 Little Falls Road Cedar Grove, NJ 07009, USA Tel: +1 (973) 239 8398 Fax: +1 (973) 239 7614 Email: spectrex@spectrex.net Web-site: www.spectrex.net Your Local Office: SPECTREX INC. USA (Texas) Mr. Jay Cooley, Regional Sales Manager 16203 Park Row, Suite 150 Houston, Texas 77084 Phone: +1 (832) 321 5229...
  • Page 70 SafEye Quasar 900 Gas Detector Technical Support...

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