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SPETCREX INC

SafEye

™

™

Series 200 IR Gas Detector - User’s and Maintenance Manual

Doc. No. TM792100, Rev. B, Oct..1997

- 36 -

LEGEND:
1. Housing

9. SW1

2. Cover

10. SW3

3. Screw Hole

11. SW2

4. Female D Connector

12. Terminal Board

5. Male D Connector

13. Threaded Plug

6. Conduit Inlet Plug

14. Socket Head Screw (M6x1.0Px50)

7. Ground Terminal Screw

15. Screw Pan Head (No. 4-40UNC-2Ax3/8”)

8. Securing Cable

16. Cable Tie

Figure 2-6. Series 400 Detector with Cover (removed)

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Содержание SafEye 200 Series

Страница 1: ...SafEye Open Path IR Gas Detector Series 200 User s and Maintenance Manual Document No TM792100 Rev B October 1997 ...

Страница 2: ...th all of the necessary information included Spectrex Inc reserves the right to make changes to any products described herein to improve reliability function or design and reserves the right to revise this document and make changes from time to time in content hereof with no obligation to notify any persons of revisions or changes Spectrex Inc does not assume any liability arising out of the appli...

Страница 3: ...1 8 3 RS 485 Interface 10 1 9 Terminals 11 1 9 1 Detector Terminal 11 1 9 2 Flash Source Terminals 13 1 10 System Setup 14 1 10 1 Detector Setting 14 1 10 2 Flash Source Setting 16 1 11 Specifications 17 1 11 1 General Specifications 17 1 11 2 Electrical Specifications 17 1 11 3 Mechanical Specifications 19 1 11 4 Environmental Specifications 20 1 12 Applications 21 2 2 Installation 23 2 1 Introdu...

Страница 4: ...ss Connection Figure 1 6 39 2 6 3 Terminal Wiring Table 1 6 39 3 3 Operation Procedures 41 3 1 SafEye Operation 41 3 2 Alignment of Unit Figures 3 1 through 3 2 41 3 3 Powering on the system 45 3 4 Safety Precautions 45 3 5 Zero Calibration 45 3 6 Calibration Check of Unit 46 4 4 Maintenance 47 4 1 General Maintenance 47 4 2 Periodic Maintenance 47 4 2 1 Routine Monthly Optical Surface Cleaning 48...

Страница 5: ...afEye Flash Source Detector Alignment 43 Figure A 1 Detector Outline Drawing A 1 Figure A 2 Source Outline Drawing Lens 65θ Type A 2 Figure A 3 Source Outline Drawing Lens 80θ Type A 4 Figure A 4 Source Outline Drawing Reflector Type A 5 List of Tables Table 1 1 Model Selection Guideline for Safeye Series 200 IR Type 1 Table 1 2 LED Status Indication 8 Table 1 3 Alignment Indication LED Color 9 Ta...

Страница 6: ...e optical path of up to 160 meter 525ft This manual is designed to provide product description installation and periodic maintenance procedures It is intended to be used by qualified personnel 1 2 Model Identification This manual includes information for Safeye Series 200 models Table 1 1 identifies the detector model options in reference to the required gas type and detection range Table 1 1 Mode...

Страница 7: ...e atmosphere and comparing it ratio to background atmospheric absorption 1 4 1 Spectral Finger Print Each hazardous material is detected by a specific sensor selected according to its specific spectral absorption or finger print There are three IR sensors that can be used for combustible gases The detection process involves two separate filters one transmitting radiation which is absorbed by a par...

Страница 8: ...der Over Estimation In cases where a detector is calibrated to the least sensitive gas composition possible in a protected area then it will over estimate the actual flammability of all other gas compositions For example if calibrated for methane and the mixture is 98 Methane 2 Propane the over estimation factor will be 2 5 The detector will read 3 LELxm when the actual gas concentration mixture b...

Страница 9: ...are O K Spectronix through local agents can advise how to calibrate a SafEye detector to any specific gas 1 5 Description The system comprises two main units the Flash Source and the Detector The SafEye system detects gases over an open path transmitted from the Flash Source to the Detector 1 5 1 Flash Source Unit Figures 1 1 1 2 The Flash Source unit emits IR radiation pulses in a collimated beam...

Страница 10: ... Oct 1997 5 The Series 200 Detector is available in three basic types a Without lenses for short range installation b With lenses for medium range installation c With lenses for long range installation Figure 1 1 Flash Source reflector type a 80φ φ Lens b 65φ φ Lens Figure 1 2 Flash Source lens Type ...

Страница 11: ...or visual indications In the Normal status the signals received from gas detection is at safe levels In the Warning status gases have been detected at Warning levels In the Alarm status gases have been detected at Alarm levels In the Fault status there are three fault types Fault 1 In this case detection is disabled due to blockage poor alignment very low signal or in the case of partial or full s...

Страница 12: ...e LED indications represent the received signal for precise alignment There is a temporary Standby Mode to give the option of switching from Alignment Mode to Calibration Mode 1 6 3 Calibration Mode This mode zeros the gas detection reading It should only be performed when there is no combustible gases or insignificant blocking between the Flash Source and Detector units and in proper weather cond...

Страница 13: ... Warning See Note 4 Off Red Constant 14 mA Alarm See Note 4 Red Red Constant 19 mA Fault 1 Off Orange Constant 2 mA Fault 2 Orange Orange Constant 0 mA Low Voltage Orange Orange Both LEDs Blink at rate of 2 Hz 0 mA Alignment Mode first Received the intensity compared to the last calibration The intensity is min 80 of the last calibration intensity Green Green 0 mA 80 60 Green Orange 0 mA 60 or les...

Страница 14: ...ext alignment comparison 4 The 4 20mA level in this Table refers to discrete indication option A different continuous reading option is described later in section 1 8 1 1 8 Output Signals The Safeye system provides the following outputs Standard 4 20 mA port Three dry contact relays Optional RS 485 Output for PC Communications 1 8 1 4 20mA Current Output The 4 20mA output can provide the detector ...

Страница 15: ...50 1 8 2 Relays The detector includes three following relays Fault relay Alarm relay Accessory relay The normal position of the alarm and warning relays is open When in the alarm or warning status the appropriate relay is closed The normal position for the fault relay is closed and when it is in the fault situation the relay is open 1 8 3 RS 485 Interface The RS 485 input output sends complete dat...

Страница 16: ...minal a Terminal Wiring Figure 1 4 displays a schematic diagram of the terminals and Figure 5 shows their location INCLUDEPICTUREORDTEXT 1 2 6 3 4 5 7 8 9 13 11 10 12 14 Detector is Activated N O Return 18 32VDC Power N C COM N O Alignment Strobe Fault Relay Closed Contact When Alarm Relay Accessory Relay Earth Ground 4 20mA IN 4 20mA OUT N O R S 485 R S 485 Screw Grounding Figure 1 4 Detector s W...

Страница 17: ...00 IR Gas Detector User s and Maintenance Manual SPETCREX INC Doc No TM792100 Rev B Oct 1997 12 LEGEND 1 Detector Cover 2 Terminal Board 3 Terminal Screw 4 Securing Cable 5 Conduits Figure 1 5 Detector Terminal Board ...

Страница 18: ...Doc No TM792100 Rev B Oct 1997 13 1 9 2 Flash Source Terminals Figure 6 shows the terminal board and Table 6 describes their use INCLUDEPICTUREORDTEXT J J N O S Figure 1 6 Flash Source Terminal Board Table 1 6 Flash Source Terminals Flash Source Terminal Description 1 VIN 2 RTN ...

Страница 19: ... note 1 below Detection speed control bit 0 at 1 see note 1 below on 2 Detection speed control bit 1 at 0 see note 1 below Detection speed control bit 1 at 1 see note 1 below off 3 Gas type control bit 0 at 0 see note 2 below Gas type control bit 0 at 1 see note 2 below off 4 Gas type control bit 1 at 0 see note 2 below Gas type control bit 1 at 1 see note 2 below off 5 Full scale sensitivity is 0...

Страница 20: ...fic address in RS485 network The address should be determined by a pre setting of SW2 1 to SW2 6 switches SW2 also provides the user to select configuration of the 4 20mA output between either Source type or Sink type according the requirements of the interfaced controller This can be done upon pre setting of SW2 7 to SW2 8 Attention SW2 7 and SW2 8 should be always at on Table 1 10 describes SW2 ...

Страница 21: ...momentarily power disconnection or when the detector is set to alignment mode off 2 Continuous reading of the 4 20mA output reading Discrete Reading of the 4 20mA output according to the detector status see 1 8 1 off 3 Non latching position of Alarm indications during Blocking Mode Alarm outputs indications are latched when the detector turns to Blocking Mode from Alarm position Latching reset can...

Страница 22: ... 5 LELxm Standard 0 2 LELxm Set by DIP Switch SW1 5 e Field of View Line of Sight f Alignment Tolerance 1 g Drift Long term 5 of full scale h Temperature Range 4oF 20oC to 131oF 55oC i Immunity to false alarm Does not produce false alarm and is not influenced by Solar Radiation Hydrocarbon Flames and Other external IR Radiation Sources 1 11 2 Electrical Specifications a Power Supply Standard 24 VD...

Страница 23: ...range is 18 to 32VDC Dry Contacts Relays Ratings Relay Name Type Normal position Maximum Ratings Alarm Relay SPDT NO NC 2A at 30 VDC or 0 5A at 250 VAC Accessory Relay SPST Open 5A at 30VDC or 250VAC Fault Relay SPST Closed 5A at 30VDC or 250 VAC Electrical Interface Terminals Function 1 POWER SUPPLY IN 2 RTN 3 ALIGNMENT MODE SELECTION 4 FAULT RELAY NO 5 FAULT RELAY COMMON 6 ALARM RELAY NO 7 ALARM...

Страница 24: ...ns b Explosion Proof CENELEC approved SCS No Ex96D1067 EExd IIB T5 55 per En 50014 En 50018 Designed to meet FM requirements Class I Div 1 Group B C and D Class II Div 1 Groups E F and G c Electrical Modules Conformal coating d Electrical connection Standard Two 3 4 14NPT conduits Optional Two M25 x 1 5 conduits e Dimensions Detector Source 132 mm 132 mm x height where height value is defined acco...

Страница 25: ...IL STD 810C method 507 1 procedure IV Relative humidity of up to 95 for the operational temperature range d Salt and Fog Design to meet MIL STD 810C method 509 1 procedure I Exposure to a 5 salt solution for 48 hours e Water and Dust IP67 per En60529 IP66 per En60529 Dust Totally protected against dust Liquids Protected against immersion between 15 cm and 1m in depth Protected against all water je...

Страница 26: ...mical pharmaceutical and other chemical storage and production areas Flammable and toxic chemical storage sites and hazardous waste disposal areas Refineries oil platforms pipelines refueling stations fuel storage facilities Hazardous loading docks transportation depots and shipping warehouses Engine rooms Compressor and pumping stations Test cells LNG LPG Systems Offshore Floating Production Stor...

Страница 27: ...as air intakes pipelines Air flow ducts etc For each installation option the mounting of Detector and Flash source is identical The only difference is in the terminal wiring Since that mounting procedures are given for installation options separately and wiring procedures are given for Detector or Flash Source separately 2 2 General Considerations 2 2 1 Personnel Only qualified personnel familiar ...

Страница 28: ...etector and one unit is used for the Flash Source Telescope Kit Calibration Filter Magnetic Mode Selector Notes 1 The Magnetic Mode Selector the Calibration Filter and the Telecope Kit are used during each detector s installation and then removed They can be reused for all other detectors installation in the site Therefore only one set is submitted for several detectors 2 There are two different T...

Страница 29: ...Place the detector with its conduit inlets pointing down on the holding plate of the swivel mount 10 Secure the detector by four 1 4 20UNC allen screws or M6 x 1P 8 with 1 4 spring washers from the swivel mount kit use No 5 Hex Key for M6 screws or 3 16 Hex Key for 1 4 20UNC screws 4 Tighten the three locking 3 8 24UNF screws 5 of the swivel mount ring until the friction in the ball joint holds th...

Страница 30: ...bly 6 Vertical Adjustment Screws 2 Swivel Mount Securing Plate 7 Horizontal Adjustment Screws 3 Protective Front Cover 8 Detector Screws 4 Swivel Mount Alignment Plate 9 Swivel Mount Plate Securing Screws 5 Swivel Mount Locking Screws 10 Swivel Mount Holding Plate Figure 2 1 Detector Flash Source and Swivel Mount Assembly for Standard Installation ...

Страница 31: ...riate screws and nuts It provides a reliable attachment of the detector to the air intake as well as good sealing and accurate alignment capability 2 4 2 Alignment Set Figure 2 5 and Accessories Air Duct Installation has a limitation which is the disability of viewing at the Detector s front and performing fine alignment through detector aim such as performed in standard installation As a result f...

Страница 32: ...urface edge This will provide that both Detector and Source optical axis will be in parallel to the Air Duct wall lines such that any blocking in the interior area will be prevented 3 Preparation of the surface Prior to holes drilling it should be verified that the Installation Surface is straight clean and free of corrosion Drilling and cutting Mark the Location and dimensions of the Installation...

Страница 33: ...nternal Plate screws should be inserted slightly to the Base Plate holes 3 Secure the Base Plate to the Installation Surface using four Nuts and Flat Washer 4 4 Attach the Window Plate 5 by threading its holes on the Base Plate Screws The Window 7 Protection Ring of the plate should be directed outside Secure it by four Nuts and Flat Washers 6 5 Alignment Plate installation Screw together the Inte...

Страница 34: ...Securing Nut and Flat Washer 5 Window Plate 6 Window Plate Nut and Flat Washer 7 Window 8 Alignment Plate 9 Internal Vertical Alignment Nut and Flat Washer 10 External Alignment Nut and Flat Washer 11 Horizontal Alignment Nut and Flat Washer 12 Detector Flash Source Plate 13 Detector Flash Source 14 Horizontal Adjustment Locking Screw 15 Detector Flash Source Securing Nut and Flat Washer 16 Window...

Страница 35: ...w Plate 6 Window Plate Nut and Flat Washer 7 Window 8 Alignment Plate 9 Internal Vertical Alignment Nut and Flat Washer 10 External Alignment Nut and Flat Washer 11 Horizontal Alignment Nut and Flat Washer 12 Detector Flash Source Plate 13 Detector Flash Source 14 Horizontal Adjustment Locking Screw 15 Detector Flash Source Securing Nut and Flat Washer 16 Window Nut Figure 2 4 Duct Mount Installat...

Страница 36: ...locate the Aim Cross at the middle of the opposite side Installation Surface Hole Rotate the Vertical and Horizontal Nuts Figure 2 4 items 10 14 to achieve best result Provide stability of the plate by securing and releasing the opposite nuts or screws gently 4 Repeat step 3 until best result is achieved 5 Provide final Screws and Nuts securing Figure 2 4 items 9 11 6 Remove the Alignment set care...

Страница 37: ...R Gas Detector User s and Maintenance Manual SPETCREX INC Doc No TM792100 Rev B Oct 1997 33 A VIEW A LEGEND 1 Telescope Plate 2 Detector Flash Source Securing Screw Hole 3 Telescope Aim Figure 2 5 Telescope Alignment Set ...

Страница 38: ... applicable for both the Source unit and the Detector unit Use color coded conductors or suitable wire markings or labels Use 12 to 20 AWG wires for site wiring The selection of wire gauge should be based on the distances between the power supply and the Flash Source and the power supply to the Detector units Procedure for Selecting the Wire Gauge 1 Determine the wire length for each of the units ...

Страница 39: ... terminal board 12 inside the detector cover is now revealed 3 Remove the protective plug 6 mounted on the detector conduit inlet Pull the wires through the detector cover 2 and secure them firmly to the cover using the cable tie 16 attached to it Use a 3 4 14NPT or M25 x 1 5P explosion proof conduit connection to assemble the conduit to the detector 4 Connect the wires to the required terminals 1...

Страница 40: ... 1 Housing 9 SW1 2 Cover 10 SW3 3 Screw Hole 11 SW2 4 Female D Connector 12 Terminal Board 5 Male D Connector 13 Threaded Plug 6 Conduit Inlet Plug 14 Socket Head Screw M6x1 0Px50 7 Ground Terminal Screw 15 Screw Pan Head No 4 40UNC 2Ax3 8 8 Securing Cable 16 Cable Tie Figure 2 6 Series 400 Detector with Cover removed ...

Страница 41: ...sed when the detector is in normal operation Alarm Relay The Alarm Relay is SPDT Relay Terminals 6 and 7 are Normally Open and the contacts are closed when the detector is in the Alarm status Terminals 7 and 8 are Normally Closed and the contacts are open when the detector is in the Alarm status Accessory Relay The Accessory output is Normally Open SPST relay Its contacts are at terminals 9 and 10...

Страница 42: ... are used for 4 20mA current output as specified in section 1 8 1 for the 4 20mA mA 11 12 Detector Controller 4 20mA Channel 11 Figure 2 8 4 20 mA Source Output RS 485 Output Terminal 14 and 15 are used for the communication network see Figure 2 9 14 15 2 Detector terminals RS485 Card Card Return Signal Figure 2 9 PC Communication Loop 11 13 14 ...

Страница 43: ...riate requirements for the detector as described in section 2 5 1 2 6 2 Harness Connection Figure 1 6 The instructions for this are identical to the detector Refer to section 2 5 2 2 6 3 Terminal Wiring Table 1 6 The Flash Source contains a terminal board Terminal Wiring Instructions are identical to the Detector Wiring instructions The Flash Source consists of two wires only The Positive supply p...

Страница 44: ...tor User s and Maintenance Manual Doc No TM792100 Rev B Oct 1997 40 J J N O S LEGEND 1 Housing 2 Cover 3 Conduit Inlet Plugs 4 Ground Terminal Screw 5 Grounding Wire 6 Securing Cable 7 Screw Hole 8 Dip Switches Figure 2 10 Flash Source Open View ...

Страница 45: ...perpendicularly to the aligned when the access from the rare side of the unit is impossible At installation case which rear access is enabled the Periscope is not necessary In this case it can be removed by releasing of the Periscope Fastening Screw item 5 at figure 3 2 Important Notes a Prior to Telescope Installation verify that the Telescope and Its Sight Mounting are free from any dirt to ensu...

Страница 46: ... Doc No TM792100 Rev B Oct 1997 42 LEGEND 1 Magnetic Mode Selector 5 Horizontal Adjustment Screw 2 Detector Housing 6 Sight Cover Screw 3 Detector Cover 7 Protective Sight Cover 4 Vertical Adjustment Screw 8 Adjustment Screw Securing Nut Figure 3 1 Alignment and Mode Selection ...

Страница 47: ... LEGEND 1 Telescope Assembly 6 Flash Source Detector Housing 2 Sight Mounting 7 Socket Set Screws 3 3 Telescope Fastening Screw 8 Vertical Adjustment Screw 2 4 Periscope 9 Horizontal Adjustment Screw 2 5 Periscope Fastening Screw 10 Adjustment Screw Securing Nut Figure 3 2 SafEye Flash Source Detector Alignment ...

Страница 48: ...gh the Periscope 4 The cross midpoint inside the Telescope Lens should be aimed to the opposite unit Flash Source such that it is observed in the Periscope c Rotate the Vertical Adjustment Screws 8 and the Horizontal Adjustment Screws 9 This should be performed until the cross midpoint is combined with the center of the top of the Flash Source Telescope Sight Mounting Figure 3 2 item 2 d Carefully...

Страница 49: ... a prolonged period of time b Follow the instructions in the manual and refer to the drawings and specifications issued by the manufacturer c Do not open the detector housing while power is supplied d Do not touch internal parts other than the two functional switches Interference with internal circuits may impair detector performance and will invalidate manufacturers warranty e Disconnect external...

Страница 50: ...e validates the pre set calibration Notes 1 This Calibration verification procedure is for a standard 4 20 mA output 2 Turn off all alarms that are attached to the units being calibrated 3 Prior to starting the Calibration check Verify that the power to the units is on and that the current of the 4 20 mA channel is Stable Record the reading 1 Locate the Calibration Filter in front of the Detector ...

Страница 51: ... opened or moved for any reason Note The frequency of cleaning operations is ultimately dependent upon the existing environmental conditions and the applications used The optical surfaces of the source and detector viewing windows should be kept as clean as possible as it is an active device The Signal Intensity Check verifies the current signal from the Flash Source compared to that of previous a...

Страница 52: ...ector 8 Perform Zero Calibration see section 3 4 4 2 2 Signal Intensity Check SIC The Signal Intensity Check determines if there is a misalignment or if the Flash Source signal is wearing over a period of time Clean the optical surfaces prior to performing this check see 4 2 1 This procedure should be performed in clear weather 1 Enter Alignment Mode by placing the magnet on the side of the detect...

Страница 53: ... the optical surfaces see section 4 2 1 2 Perform the signal intensity check see section 4 2 2 3 Perform the calibration check see section 3 5 4 2 4 Maintenance Records Record every maintenance operation performed on the Source and or Detector in a Maintenance Records Log book The records should include but not be restricted to the following The information identifying the measurement units The da...

Страница 54: ...flashing at yellow and fault is indicated at 0mA level Low voltage is supplied to the detector Check the voltage level supplied to the detector One LED is on at yellow and 4 20mA indication level is 2mA Dirt has accumulated on the detector s window or on the Flash Source s window Clean the optical windows See Section 4 2 1 One unit at least has been moved or tilted Perform Realignment See section ...

Страница 55: ...afEye Series 200 IR Gas Detector User s and Maintenance Manual SPETCREX INC Doc No TM792100 Rev B Oct 1997 A 1 Appendix Appendix A A Outline Drawings Outline Drawings Figure A 1 Detector Outline Drawing ...

Страница 56: ...SafEye Series 200 IR Gas Detector User s and Maintenance Manual SPETCREX INC Doc No TM792100 Rev B Oct 1997 A 2 Figure A 2 Source Outline Drawing Lens 65φ φ Type ...

Страница 57: ...SafEye Series 200 IR Gas Detector User s and Maintenance Manual SPETCREX INC Doc No TM792100 Rev B Oct 1997 A 3 Figure A 3 Source Outline Drawing Lens 80φ φType ...

Страница 58: ...SafEye Series 200 IR Gas Detector User s and Maintenance Manual SPETCREX INC Doc No TM792100 Rev B Oct 1997 A 4 FigureA 4 Source Outline Drawing Reflector Type ...

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