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Wiring Configurations 

 

22 

SafEye™

 Toxic and Aromatic Open-Path Gas Detection System 

 

3.5 

Models and Types 

The Quasar 950/960 is available in 3 models for each type.  Each model has the 
same detector but a different source. This allows for detection at distances of 5

–

60m. The various options are listed in Table 1. 

Table 1: Model Numbers and Installation Distances 

Model 

No. 

Detector 

Source 

Min. 

Installation 

Distance 

(ft/m) 

Max. 

Installation 

Distance 

(ft/m) 

H

2

S 

951 

QRU-X-11X 

QTU-X-11X 

17/5

 

52/16

 

952 

QRU-X-11X 

QTU-X-21X

 

46/14 

132/40

 

953 

QRU-X-11X 

QTU-X-31X

 

115/35 

200/60

 

Ammonia 

961 

QRU-X-21X 

QTU-X-11X 

17/5

 

52/16

 

962 

QRU-X-21X 

QTU-X-21X

 

46/14 

132/40

 

963 

QRU-X-21X 

QTU-X-31X

 

115/35 

200/60

 

 

Summary of Contents for SafEye Quasar 950

Page 1: ...xic and Aromatic Open Path Gas Detection System User and Maintenance Manual 8200 Market Blvd Chanhassen MN 55317 USA Phone 1 973 239 8398 Fax 1 973 239 7614 Website www spectrex net Email spectrex csc rmtna emerson com ...

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Page 3: ... or any use of any product or circuit described herein neither does it convey license under its patent rights or the rights of others Warranty SPECTREX agrees to extend to Purchaser Distributor a warranty on the SPECTREX supplied components of the SharpEye products SPECTREX warrants to Purchaser Distributor that the products are free from defects in materials and workmanship for a period of three ...

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Page 5: ...inciples of Operation 18 3 3 1 Definitions of Terms 18 3 3 2 Spectral Fingerprint 18 3 3 3 Optical Path 19 3 3 4 Detected Gases 19 3 3 5 UV Source 20 3 3 6 Heated Optics 20 3 3 7 HART Protocol 20 3 3 8 Modbus RS 485 20 3 3 9 Tilt Mount 21 3 4 Product Certification 21 3 4 1 ATEX IECEx 21 3 4 2 SIL 2 21 3 4 3 TR CU EAC 21 3 4 4 Inmetro UL 21 3 5 Models and Types 22 3 6 Description 24 3 6 1 UV Source...

Page 6: ...trical Specifications 34 5 2 1 Current Consumption 34 5 2 2 Electrical input protection 34 5 2 3 Electrical outputs 34 5 3 Mechanical Specifications 35 5 4 Environmental Specifications 35 5 4 1 High Temperature 36 5 4 2 Low Temperature 36 5 4 3 Humidity 36 5 4 4 Salt and Fog 36 5 4 5 Water and Dust 36 5 4 6 Shock and Vibration 36 5 4 7 Electromagnetic Compatibility EMC 37 6 Installation Instructio...

Page 7: ...6 9 2 Terminal Wiring 49 7 Operating Instructions 51 7 1 SafEye Operation 51 7 2 Alignment of Unit 51 7 3 Powering up the System 52 7 4 Safety Precautions 53 7 5 Signal Verification 53 7 5 1 Signal Values Limitation 53 7 6 Zero Calibration 54 7 7 Functional Check 55 8 Maintenance Instructions 57 8 1 General Maintenance 57 8 2 Periodic Maintenance 57 8 2 1 Routine Optical Surface Cleaning 57 8 2 2 ...

Page 8: ... B 4 Wall Mount 65 B 5 Commissioning Kit 65 B 6 HART Handheld Diagnostic Unit 65 B 7 HART Handheld Harness Kit 65 B 8 USB RS 485 Harness Converter Kit 66 B 9 Sunshade 66 Appendix C SIL 2 Features 67 C 1 Safety Relevant Parameters 67 C 2 General Conditions for Safe Use 67 Technical Support 72 ...

Page 9: ...Figure 13 0 20mA Non Isolated Sink 3 Wire 63 Figure 14 0 20mA Source 3 Wire 63 Figure 15 RS 485 Networking for Wiring Option 3 64 List of Tables Table 1 Model Numbers and Installation Distances 22 Table 2 Detector LED Indications 28 Table 3 Source LED Indications 29 Table 4 Standard default 0 20mA Current for the Gas Channel 29 Table 5 Detector Default Setup 31 Table 6 Source Default Setup 31 Tabl...

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Page 11: ...hapter 3 Technical Description describes the detector s theory of operation Chapter 4 Operating Modes describes the detector s operation modes user interface and indications Chapter 5 Technical Specifications describes the detector s electrical mechanical and environmental specifications Chapter 6 Installation Instructions describes how to install the detector including wiring and mode settings Ch...

Page 12: ...14 Fourth Release Ian Buchanan Eric Zinn 4 November 2014 Fifth Release Ian Buchanan Eric Zinn 5 November 2014 Sixth Release Ian Buchanan Eric Zinn 6 January 2015 Seventh Release Ian Buchanan Eric Zinn 7 March 2016 Eighth Release Ian Buchanan Eric Zinn 8 June 2016 Ninth Release Ian Buchanan Eric Zinn 9 January 2017 Tenth Release Jay Cooley Ian Buchanan 10 February 2017 Eleventh Release Jay Cooley I...

Page 13: ...ctromagnetic Interference EOL End of Line FOV Field of View HART Highway Addressable Remote Transducer communications protocol IAD Immune at Any Distance IECEx International Electro Technical Commission Explosion IP Internet Protocol IPA Isopropyl Alcohol IR Infrared IR3 Refers to the 3 IR sensors in the VID JP5 Jet Fuel LED Light Emitting Diode MODBUS Serial communications protocol using Master S...

Page 14: ...nt 1 3 Notifications This section explains and exemplifies the usage of warnings cautions and notes throughout this guide Warning This indicates a potentially hazardous situation that could result in serious injury and or major damage to the equipment Caution This indicates a situation that could result in minor injury and or damage to the equipment Note This provides supplementary information emp...

Page 15: ...tector and its features It includes instructions on the installation operation and maintenance of the detector To use the WinHost software to change the required functions and for a description of its maintenance please refer to Manual TM899050 for instructions To use the HART Protocol to change the required functions and for a description of its maintenance please refer to Manual TM899030 To set ...

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Page 17: ... Standard 0 20mA output Maintenance Call Mode 3mA HART protocol communications protocol RS 485 Output Modbus compatible with PC communications network for a maximum of 247 systems Simple one person installation alignment and calibration ATEX and IECEx approved per Ex II 2 2 G D Ex db eb ib ib Gb IIB H2 T4 Gb Ex tb IIIC T135 C Db TR CU approved per 1Ex db eb ib ib Gb IIB H2 T4 Gb X Ex tb IIIC T135 ...

Page 18: ...n which ammonia concentration monitoring is required 3 3 Principles of Operation The Quasar system detects gases through dual spectral range monitoring analyzing the absorption of radiation caused by gases in the atmosphere and comparing the ratio to background atmospheric absorption 3 3 1 Definitions of Terms The following list defines gas concentration measurement terms that are used in this man...

Page 19: ...pm is essential in order to prevent its toxic effects such as respiratory tract paralysis In the UV band NH3 gas has a typically strong absorption in the solar blind range of 189 210nm that enables its fast and reliable detection at low concentrations Hydrogen Sulfide H2S A flammable poisonous gas with a characteristic smell of rotten eggs It is perceptible in air at concentrations of 0 001 0 1ppm...

Page 20: ...perated per temperature change the user can define the start temperature below which the window will be heated default is 41 F 5 C This temperature can be defined from 32 F 0 C to 122 F 50 C Heating stops when the temperature is 27 F 15 C above the start temperature 3 3 7 HART Protocol The Quasar 950 960 uses the HART Protocol HART Communication is a bi directional industrial field communication p...

Page 21: ... ib ib Gb IIB H2 T4 Gb Ex tb IIIC T135 C Db T Ambient 55 C to 65 C This product is suitable for use in hazardous zones 1 and 2 with IIB H2 group vapors present and zones 21 and 22 with IIIC combustible dust types 3 4 2 SIL 2 The Quasar 950 960 is TUV approved for SIL 2 requirements per IEC 61508 According to SIL 2 requirements the alert condition can be implemented by an alert signal via the 0 20m...

Page 22: ...ection at distances of 5 60m The various options are listed in Table 1 Table 1 Model Numbers and Installation Distances Model No Detector Source Min Installation Distance ft m Max Installation Distance ft m H2S 951 QRU X 11X QTU X 11X 17 5 52 16 952 QRU X 11X QTU X 21X 46 14 132 40 953 QRU X 11X QTU X 31X 115 35 200 60 Ammonia 961 QRU X 21X QTU X 11X 17 5 52 16 962 QRU X 21X QTU X 21X 46 14 132 40...

Page 23: ...019 23 The Quasar 950 960 can be ordered according to a specific system model structure that defines the calibration type commissioning kit P N 888847 X and 2 tilt mounts P N 88270 Refer to Figure 1 Figure 1 System P N Definition of Quasar 950 960 ...

Page 24: ... source P N QTU XX1X detector P N QRU XX1X and commissioning kit P N 888847 X Refer to Figure 2 Figure 2 P N Definition of Quasar 950 960 3 6 Description The SafEye system consists of 2 main units UV source transmitter Infrared detector receiver Quasar 950 960 detects gases over an open path transmitted from the UV source to the detector ...

Page 25: ...53 963 Source P N QTU X 31X 1 Front window section 7 Earth terminal 2 Label 8 Front window 3 Main housing 9 Cable inlet 4 Mounting plate 10 Indicator LED 5 Junction box 11 Shield 6 Back cover Figure 3 UV Source The sources for models 951 952 and 953 are the same electronically and optically The only distinction between them is that each detector apparatus is suitable for a different distance 3 6 2...

Page 26: ...heated to improve performance in ice condensation and snow conditions The P N QRU X 11X Detector is suitable for Quasar models 951 952 and 953 The P N QRU X 21X Detector is suitable for Quasar models 961 962 and 963 1 Front window section 7 Earth terminal 2 Label 8 Front window 3 Main housing 9 Handheld fast connection 4 Mounting plate 10 Cable inlet 5 Junction box 11 Indicator LED 6 Back cover 12...

Page 27: ...l and to A at alarm level 4 1 2 Maintenance Call Mode 3mA Output The maintenance call mode indicates a low signal or low signal ratio that may be caused by a dirty window misalignment poor source or that one of the detector s parameters is at the limit value The detector continues to operate reading any gas present but provides a 3mA pre warning signal that a maintenance procedure is required 4 1 ...

Page 28: ...cted to zero It should only be performed when the following criteria are met No combustible gases are present A clear path exists between the UV source and the detector Clear weather conditions are present Zero calibration must be performed after installation re alignment or cleaning using the handheld unit or host software on a PC 4 2 Visual Indicators One 3 color LED indicator is located in the ...

Page 29: ...s Source see The maximum permitted load resistance for the 0 20mA output is 500Ω Table 4 Standard default 0 20mA Current for the Gas Channel Current Reading Status and Description 0mA 0 2mA Fault in 0 20mA loop 1mA 0 2mA Zero calibration in progress Fault 2 2mA 0 2mA Fault 1 non critical 3mA 0 2mA Maintenance call 4mA 0 2mA No gas present 4 20mA Continuous measuring of gas concentration at a range...

Page 30: ...includes the following options Automatic BG Calibration Address Setup Heated Optics Operation 4 4 2 1 Automatic BG Calibration Enable Automatic BG calibration is performed according to background conditions Disable The detector is not updated when there is a change in the background conditions 4 4 2 2 Address Setup The detector provides up to 247 addresses that can be used with the RS 485 communic...

Page 31: ... 4 functions that can be programmed according to customer requirements either at the factory or at the customer facility using a PC software host or a handheld unit The standard setup is as follows Table 5 Detector Default Setup Function Setup Automatic BG Calibration Enabled 0 20mA Continuous Heat mode Auto Heat on 5 Table 6 Source Default Setup Function Setup Heat mode Auto Heat on 5 The source ...

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Page 33: ...953 QRU X 11X QTU X 31X 115 35 200 60 Ammonia 961 QRU X 21X QTU X 11X 17 5 52 16 962 QRU X 21X QTU X 21X 46 14 132 40 963 QRU X 21X QTU X 31X 115 35 200 60 Response Time 10sec to T90 Spectral Response 200 300nm Sensitivity Range Full Scale Warning Alarm ppm m ppm m ppm m 500 100 300 Field of View Line of sight Alignment Tolerance 1 Drift Long term 5 of full scale Minimum Detectable Level 50 ppm m ...

Page 34: ...0mA Current Output The 0 20mA is an isolated Sink option This output can also be configured as Source see Wiring Configurations on page 61 The maximum permitted load resistance is 500Ω 5 2 3 2 Communication Network The detector is equipped with an RS 485 communication link that can be used in installations with computerized controllers Communication is compatible with the Modbus protocol This prot...

Page 35: ...ctrochemical and passivated coating Explosion Proof ATEX and IECEx Ex II 2 2 G D Ex db eb ib ib Gb IIB H2 T4 Gb Ex tb IIIC T135 C Db Water and Dust Tight IP66 and IP68 IP68 is rated for 2m depth for 45 minutes NEMA 250 type 6p Electrical Modules Conformal coated Electrical Connection 2 options specified at time of order 2 X M25 ISO 2 X 3 4 14 NPT conduits Dimensions Detector 10 5 x 5 1 x 5 1 267 x...

Page 36: ... is designed to meet MIL STD 810C Method 507 1 Procedure IV Relative humidity of up to 95 for the operational temperature range 5 4 4 Salt and Fog The SafEye system is designed to meet MIL STD 810C Method 509 1 Procedure I Exposure to a 5 salt solution for 48 hours 5 4 5 Water and Dust IP68 per EN60529 IP66 per EN60529 Dust Completely protected against dust Liquids Protected against immersion betw...

Page 37: ... 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 To fully comply with EMC directive 2014 30 EU and protect against interference caused by RFI and EMI the cable to the detector must be shielded and the detector must be grounded The shield should be grounded at the detector end ...

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Page 39: ...ions are stressed wherever applicable 6 2 General Considerations 6 2 1 Personnel Only suitably qualified personnel familiar with the local codes and practices and trained for gas detection maintenance should be employed Wiring should only be performed or supervised by someone with knowledge of electronics and in particular wiring installation 6 2 2 Required Tools The detector can be installed usin...

Page 40: ...n the protected area or block the infrared beam 6 2 5 Tips for Selecting a Gas Detector Location The following are some tips for selecting gas detector locations in order to provide the best detection coverage For heavier than air gases below potential leak sources For lighter than air gases above potential leak sources Along the expected leak trajectory near leak sources considering prevailing wi...

Page 41: ...270 1 base is used for the detector 1 base is used for the UV source The commissioning kit P N 888847 1 for H2S and 888847 2 for ammonia includes Magnetic mode selector P N 790285 Handle for cover opening P N 888242 Telescope kit P N 888210 Function check filters P N 888280 888280 1 for H2S 888280 2 for ammonia Other accessories are available per customer request Pole mount U bolt 2 3 P N 888140 U...

Page 42: ...s The cable entry point may not exceed 182 F 83 C Suitable precautions should be taken when selecting the cable The marking of the equipment is Ex II 2 2 G D Ex db eb ib ib Gb IIB H2 T4 Gb Ex tb IIIC T135 C Db The equipment may be used with flammable gases and vapors with apparatus groups IIA and IIB H2 T4 in the ambient temperature range 67 F 55 C to 149 F 65 C Installation should be carried out ...

Page 43: ...oints differ from the relevant minimum or maximum values required by Table 2 of IEC EN 60079 1 2007 for IIB H2 as detailed below Flamepath Description Type of Joint Minimum Width L mm Maximum Gap iC mm Cylindrical section of spigot both ends of Ex d compartment Cylindrical 15 0 08 30mm diameter window fitted against enclosure Flanged 10 7 0 02 39 5mm diameter window fitted against enclosure Flange...

Page 44: ...ontinuity test 6 6 Detector Source Mounting Mount the detector source with the tilt mount kit P N 888270 The tilt mount enables the detector to be rotated up to 60º in all directions with a fine alignment of up to 10º 6 6 1 Tilt Kit The following contents are included with the tilt mount kit P N 888270 Table 10 Tilt Mount Kit Item Qty Type Model Tilt mount 1 888269 Screw 1 M10 x 1 5 Spring washer ...

Page 45: ...2 Remove the protective plug mounted on the detector conduit cable entry inlet and pull the wires through the detector inlet Figure 7 Item 4 Use a 3 4 14 NPT or M25x1 5 explosion proof conduit connection cable gland to assemble the cable explosion proof conduit to the detector 3 Connect the wires to the required terminals Figure 7 Item 2 according to the wiring diagram See Detector Terminal Wiring...

Page 46: ...g plate 5 Vertical fine alignment tightening screw 2 Detector source holding plate 6 Vertical crude alignment tightening screw 3 Horizontal crude alignment tightening screw 7 Vertical fine alignment screw 4 Horizontal fine alignment tightening screw 8 Horizontal fine alignment screw Figure 5 Tilt Mount ...

Page 47: ...l crude alignment tightening screw 11 Detector 4 Horizontal fine alignment tightening screw 12 Telescope 5 Vertical fine alignment tightening screw 13 Telescope tightening bolt 6 Vertical crude alignment tightening screw 14 Detector back cover 7 Vertical fine alignment screw 15 Detector back cover secure bolt 8 Horizontal fine alignment screw Figure 6 Detector and Tilt Mount Assembly ...

Page 48: ...held unit 3 Earth terminal 7 Detector holding plate 4 Inlet conduit Figure 7 Detector with Cover Removed 6 8 Detector Terminal Wiring The detector has 6 wiring terminals Table 11 lists the functions of each electrical terminal of the detector Table 11 Wiring Options Terminal No Function 1 Power 24VDC 2 Return 24VDC 3 0 20mA In 4 0 20mA Out 5 RS 485 6 RS 485 ...

Page 49: ...he detector 3 Connect the wires to the required terminals Figure 8 Item 2 according to the wiring diagram See Terminal Wiring page 49 and Figure 13 in Wiring Configurations on page 61 4 Connect the grounding wire to the ground screw located on the exterior of the detector Figure 8 Item 3 The source must be well grounded to earth ground 5 Place and secure the source unit s back cover by screwing on...

Page 50: ...ions 50 SafEye Toxic and Aromatic Open Path Gas Detection System 1 Housing 5 Internal earth connection 2 Terminal board 6 N A 3 Earth terminal 7 Detector holding plate 4 Inlet conduit Figure 8 Source with Cover Removed ...

Page 51: ...icularly to the one being aligned when access from the rear of the unit is impossible For installations where rear access is possible the periscope is not necessary and it can be removed by releasing the periscope fastening screw Notes To ensure proper alignment according to factory calibration prior to telescope installation verify that the telescope and its sight mounting are free of dirt To ens...

Page 52: ... or source see Figure 3 and Figure 4 Item 8 b Tighten screw 5 c Aim within the vertical axis using screw 8 d Tighten screw 4 e Make sure the telescope cross is pointing to the center of the detector and source window 7 Repeat Step 6 for the detector alignment 8 Remove the telescope and replace the front shield 7 3 Powering up the System Warning Prior to any operation or maintenance check the Safet...

Page 53: ...al TM899050 or by the HART handheld unit refer to Manual TM899030 7 5 1 Signal Values Limitation Table 13 describes the maintenance data channels limitation values Table 13 Maintenance Channel Limitation Values Channel Short Range Medium Range Long Range Maintenance 5m 20m 15m 40m 35m 60m Reference 2V Gain 0 1 5V Gain 2 2V Gain 0 1V Gain 1 2V Gain 1 1V Gain 2 The minimum signal allowed is 2V at Ga...

Page 54: ...o the zero calibration procedure Perform zero calibration in good weather conditions with insignificant gas concentrations in the surrounding environment or indoors To perform the zero calibration procedure 1 Switch from normal to alignment mode indication 2 Switch from alignment to standby mode 3 Switch from standby to zero Calibration mode 4 The 0 20mA output should now be at 1mA 5 Wait up to 60...

Page 55: ...sed to confirm that a response has not changed from previous readings The filter is not used for calibration since it is unnecessary in the procedure nor does it equate to a particular quantity of gas Caution Disable automatic activation and disconnect any external device that should not be activated during the calibration check Notes This functional verification procedure is for a standard 0 20mA...

Page 56: ...ter s window over the viewing window of the detector 3 Wait 20 seconds 4 Read the 0 20mA current Determine the difference between the reading taken with and without the functional check filter This difference is the 0 20mA current variance 5 Record the 0 20mA current variance in the maintenance logbook If the variance is more than a 30 change when compared to the previous check see delivery form r...

Page 57: ...s each time that the source or the detector unit are opened or moved for any reason 2 The signal verification check corroborates the current signals from the UV source compared to that of previous alignments This check should be performed every 6 12 months The signal should be checked according to threshold levels see Signal Verification page 53 3 Perform a functional check every 6 months see Func...

Page 58: ...nctional check see Functional Check page 55 8 2 2 Signal Verification The signal verification check determines the proper operation of the open path It checks the alignment and cleanliness of the window or any problem in the source or detector Use the PC Host software to measure the signal verification Refer to Manual TM888050 or use the IS handheld unit 8 2 3 Functional Check of Unit The SafEye Q...

Page 59: ...detector NQR at below the permitted limit Gas in the path Make sure that the path is clean and that the weather conditions are good NQR at above the permitted limit Poor alignment Perform alignment Temperature higher than 77 F 25 C beyond the room temperature Electronic problem Replace repair detector Ratio1 and Ratio2 out of the limit Poor alignment Perform alignment Dirt on the window Clean the ...

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Page 61: ...Wiring Configurations TM888300 Rev Al August 2019 61 Appendix A Wiring Configurations Figure 10 Detector Wiring Terminal ...

Page 62: ...Wiring Configurations 62 SafEye Toxic and Aromatic Open Path Gas Detection System Figure 11 Source Wiring Terminal Figure 12 0 20mA Sink 4 Wire ...

Page 63: ...960 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 Using repeaters the number of detectors can be much larger 32 detectors for each repeater up to 247 on the same 4 wires When using the RS 485 network it is possible to read each detector status Fault Warning and Alarm individually For more...

Page 64: ...Wiring Configurations 64 SafEye Toxic and Aromatic Open Path Gas Detection System Figure 15 RS 485 Networking for Wiring Option 3 ...

Page 65: ...e kit includes an alignment telescope P N 888210 a magnetic mode selector P N 790285 2 functional check filters P N 888280 1 for H2S and 888280 2 for ammonia for system installation and periodical functional testing and socket keys for access to units B 6 HART Handheld Diagnostic Unit The HART handheld diagnostic unit P N 888810 is fitted with a harness to the quick plug connection providing an ea...

Page 66: ...B converter P N 794079 together with SPECTREX host software enables the user to connect to any available PC or laptop to reconfigure settings or perform diagnostics on the Quasar 950 960 Gas Detector Refer to Manual TM899050 for programming instructions B 9 Sunshade The sunshade P N 888263 is designed to protect the detector from the heat of the sun ...

Page 67: ...D 1660 7 fit λDD 1624 7 fit DC 94 SFF 97 PFDavg 5 5 E 04 PFD _SIL2 5 5 PFH 9 7 E 08 1 h PFH _SIL2 9 7 C 2 General Conditions for Safe Use The SafEye Quasar 950 960 Open Path Gas Detector should consist only of the approved hardware and software modules Take note of the application advice and limitations listed in this manual The regional and national regulations should be considered when performin...

Page 68: ...n Path Gas Detector must be checked completely The alarm conditions of the transmitter must be checked periodically together with standard gas calibration checks The SafEye Quasar 950 960 Open Path Gas Detector must be switched off and on The connected controller must monitor the 0 20mA signal current for values below 4mA and above 20mA Defects found in the detector must be repaired within 72 hour...

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Page 72: ...echnical Support For technical assistance or support contact 8200 Market Blvd Chanhassen MN 55317 USA Phone 1 973 239 8398 Fax 1 973 239 7614 Email spectrex csc rmtna emerson com Website www spectrex net ...

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