General Monitors IR5500 Скачать руководство пользователя страница 54 | Manualshive

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Model IR5500

40

It is unsafe to use the IR5500 when there is negative drift in the LEL range. A LEL
negative drift causes both currents to go to zero and the fault relay to de-energize.
The LEL negative drift may occur when the system is first installed and not yet
aligned.

Negative drift on the ppm range is not a dangerous condition as with a LEL negative
drift. The ppm negative drift does not put the IR5500 into a total fault. Nonetheless,
it returns the ppm current to zero.

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Содержание IR5500

Страница 1: ... to the extent specifically authorized in writing by General Monitors Instruction Manual 08 16 General Monitors reserves the right to change published specifications and designs without prior notice MANIR5500 Part No MANIR5500 Revision M 08 16 MODEL IR5500 Infrared Open Path Detector for Hydrocarbon Gas Applications ...

Страница 2: ...Model IR5500 i This page intentionally left blank ...

Страница 3: ...Typical System Gas Cloud Measurements 6 2 1 5 Control Electronics 6 3 0 INSTALLATION 8 3 1 Receipt of Equipment 8 3 2 Location Considerations 8 3 3 System Mounting 9 3 4 Installation 10 3 5 Conduit Sealing 11 3 6 Terminal Connections 11 3 6 1 Terminal Block Operation 14 3 6 2 Terminal Functions 15 3 7 Applying Power and Alignment 16 3 7 1 Start Up Checklist 16 3 7 2 Startup 16 3 7 3 Alignment and ...

Страница 4: ...g Output for LEL m 44 5 1 15 F15 Receiver Heater 44 5 1 16 F16 High IR 45 5 1 17 F18 Dirty Lens 45 5 1 18 F19 Magnet 45 5 1 19 F20 Low Alignment Signal 45 5 1 20 F21 Zeroing 45 5 1 21 F22 RAM Checksum 45 5 1 22 F23 Hardware Revision 45 5 1 23 F24 Receiver Temperature Sensor 46 5 1 24 F25 Analog Output for ppm m 46 5 1 25 tF6 Low Voltage Input at the Source 46 5 1 26 tF7 Source Heater 46 5 1 27 tF8...

Страница 5: ...log Output Option 55 8 2 Alignment Using Legacy AJ Value 56 Table of Figures Figure 1 IR5500 Open Path Gas Detector 1 Figure 2 Indoor Gas Cloud 5 Figure 3 Outdoor Gas Cloud 5 Figure 4 Outline and Dimensional Drawing with Mounting Options 9 Figure 5 Installation onto Mounting Arm 10 Table of Tables Table 1 Readings of Methane Gas Clouds 0 5000 ppm m Range 6 Table 2 Readings of Methane Gas Clouds 0 ...

Страница 6: ...bly to each unit Apply lithium grease on each taper joint before attaching a unit to a support arm base Add the supplied bolt and washers do not tighten until unit is fully adjusted If the bolt has been tightened and further adjustment is necessary loosen the bolt two turns and use a screwdriver between the pan tilt assembly and arm to release the taper Arm Assembly with Fine Adjustments Basic Arm...

Страница 7: ...unit housing For installation in a Division 2 location using Division 2 wiring methods a drain loop or conduit seal may not be required Consult Article 501 of the NEC for details WARNING The conduit entries should be sealed per the NEC 501 15 or Canadian Electrical Code Handbook Part 1 Section 18 154 for Division 1 installations WARNING Unused cable entry holes must be sealed with an approved expl...

Страница 8: ...ng the supplied hex wrench and unscrew the rear cover All output connections are made inside the housing see figures on following page for terminal block locations Recommended stripping length is 4 10 10 mm for push terminals 11 mm for screw terminals NOTE Contact with printed circuit board PCB components should be avoided to prevent damage by static electricity ...

Страница 9: ...ergized Normally De energized 6 A2 Alarm NO Alarm NC Fault NO Fault NO FLT1 19 5 AC Alarm C Alarm C Fault C Fault C FLTC 20 4 A1 Alarm NC Alarm NO Fault NC Fault NC FLT2 21 3 W2 L Warn LEL m NO Warn LEL m NC Warn ppm m NC Warn ppm m NO W2 P 22 2 WC L Warn LEL m C Warn LEL m C Warn ppm m C Warn ppm m C WC P 23 1 W1 L Warn LEL m NC Warn LEL m NO Warn ppm m NO Warn ppm m NC W1 P 24 Receiver Wiring Te...

Страница 10: ...nal clamps on to the wire not the insulation Terminal Block Operation Diagram The push terminal block is designed to accept 24 AWG to 16 AWG 0 2 mm2 to 1 5 mm2 stranded or solid wire The optional screw terminal block accepts 26 AWG to 14 AWG 0 14 mm2 to 2 5 mm2 wire Primary DC voltage power must be provided by the customer Since the Model IR5500 Infrared Open Path System is designed to continuousl...

Страница 11: ...on letter 2 SU Start Up 120 0 Gas Concentration Continuous The IR5500 contains a heater circuit to remove condensation from the windows The unit should be allowed to stabilize for approximately two hours before continuing with the setup mode The resolution of the display is the either 0 1 LEL m or 100 ppm m Since HART Modbus and 4 20 mA outputs have more resolution the least significant digit of t...

Страница 12: ...optics are clean Adjust units for maximum signal Adjust the Source first then the Receiver Adjust pan first then tilt Make sure that mounting screws are fully tightened Make sure that the Receiver displays 0C to complete alignment 1 It is recommended that two people are involved in alignment One person should be at the Source and one person should be at the Receiver An alignment scope is helpful b...

Страница 13: ...ht filter on the Source nLF LF and Fi to finish the Pth menu The path length entered LEn should be accurate to within 5 of the actual distance The Receiver will display a number that is a percent of expected signal level Aim for 100 percent or higher The minimum acceptable percent is 80 Below 50 the alignment fault F20 will be set 5 At the Source lightly tighten the front fine adjust screw until i...

Страница 14: ...Guide xiii Response Test After initial alignment a test of the IR5500 should be carried out using the test gas films for methane or propane part numbers 329083 or 329084 respectively Follow the instructions listed on the films ...

Страница 15: ...with the respective product instruction manual Remember these products are for your safety Special Warnings The Model IR5500 Infrared Open Path System contains components which can be damaged by static electricity Special care must be taken when wiring the system to ensure that only the connection points are touched WARNING Toxic combustible and flammable gases and vapors are dangerous Extreme cau...

Страница 16: ...y of outputs Type 4X IP66 IP67 weatherproof rating highly durable unit Fail to safe operation alerts user to fault in operation Automatic gain control compensates for dirty optics rain and fog Power supply input reversal protection protection against miswiring damage Dirty Window delay and Beam Block delay reduces maintenance and false alarms 1 3 Applications This is a partial list of applications...

Страница 17: ... of alarming occur Fault detection should be verified Periodic Testing of Field Devices Periodic testing or alignment should be performed per the manufacturers recommendations and instructions Testing and alignment procedures should include but not be limited to Verify zero reading Verify gas reading by applying a Test Gas Film Verify integrity of all optical surfaces and devices When testing prod...

Страница 18: ...ment aids For setups that require the distance from the Source to the Receiver to be greater than 100 meters General Monitors offers an optical alignment scope that makes the initial alignment easier Prior revisions of the product were marked as the Ultima OPIR 5 Detector 2 1 1 Infrared Detection Principles Most gases absorb infrared radiation Hydrocarbon gases absorb infrared radiation at specifi...

Страница 19: ...pm m range highly sensitive to low levels of hydrocarbons and the LEL m range large hazardous levels of hydrocarbons The Model IR5500 display is auto ranging In general an open path monitor can give similar responses to large low concentration gas clouds and small high concentration gas clouds as shown below The Alarm setpoint should be equal to or less than the reading for a gas concentration of ...

Страница 20: ...x 10 meters 2500 Table 1 Readings of Methane Gas Clouds 0 5000 ppm m Range Size of Gas Cloud IR5500 Display LEL m 20 LEL x 1 meter 0 2 10 LEL x 2 meters 0 2 100 LEL x 2 meters 2 5 50 LEL x 5 meters 2 5 100 LEL x 1 meter 1 0 50 LEL x 2 meters 1 0 25 LEL x 4 meters 1 0 10 LEL x 10 meters 1 0 Table 2 Readings of Methane Gas Clouds 0 5 LEL m Range 2 1 5 Control Electronics Both the Model IR5500 Source...

Страница 21: ...e digital to analog converter to produce two 4 to 20 milliampere mA signals that are proportional to the 0 to 5 000 ppm m and 0 to 5 LEL m for the methane sensing unit and 0 to 2 000 ppm m and 0 to 1 LEL m for the propane unit The 4 20 mA signal is converted to gas concentration in of full scale using the formula Analog Output 4 16 100 full scale where Analog Output is the 4 20 mA signal The micro...

Страница 22: ... to consider when selecting locations are as follows The system should be accessible for occasional response checks The Receiver should be mounted so that the display is visible to aid in alignment Do not mount near strong magnetic fields as degradation of performance may result The line of sight between the Source and Receiver should be free from obstructions such as o a parked truck or moveable ...

Страница 23: ... taper joint before attaching a unit to a support arm base Add the supplied bolt and washers do not tighten until unit is fully adjusted If the bolt has been tightened and further adjustment is necessary loosen the bolt two turns and use a screwdriver between the pan tilt assembly and arm to release the taper Figure 4 Outline and Dimensional Drawing with Mounting Options Arm Assembly with Fine Adj...

Страница 24: ... to back Apply a small amount of anti seize lubricant p n 2421 to the first few threads of each M6 screw A packet of lubricant is included with the pan tilt assembly Without lubricant alignment will be more difficult and bolts may seize Install the 4 screws without tightening the front two Hand tighten the back two screws 3 Mount the unit and pan tilt assembly on the arm Install the washer the loc...

Страница 25: ...adian Electrical Code Handbook Part 1 Section 18 154 for Division 1 installations WARNING Unused cable entry holes must be sealed with an approved explosion proof stopping plug CAUTION Acetic acid will damage metal components hardware and other components If damage results from the use of a sealant that outgases acetic acid such as a room temperature vulcanizing sealant RTV the two year warranty w...

Страница 26: ...Model IR5500 12 Figure 6 Source Wiring ...

Страница 27: ...Model IR5500 13 Figure 7 Receiver Wiring ...

Страница 28: ...C Warn ppm m C Warn ppm m C WC P 23 1 W1 L Warn LEL m NC Warn LEL m NO Warn ppm m NO Warn ppm m NC W1 P 24 Table 3 Receiver Wiring Terminal Locations 3 6 1 Terminal Block Operation To connect wiring to the terminal block insert a screwdriver into the orange tab and press down opening the terminal see Figure Insert the wire into the terminal and release the orange tab clamping the wire in the termi...

Страница 29: ...system shutdown Power must remain disconnected until all other wiring connections are made 3 6 2 Terminal Functions Reset The Model IR5500 provides external Reset Switch terminations to allow remote resetting of the alarms Connect each end of a normally open SPST momentary switch to RST and COM refer to Table 3 To reset a latched relay simply press and release the switch Relays Inductive loads bel...

Страница 30: ...ies are pointed downward Verify that the signal wiring is correct Verify that the power supply is connected properly The Model IR5500 is powered by 24 VDC Make sure the cover is securely installed or the area has been declassified 3 7 2 Startup Before applying power to the system for the first time all wiring connections should be checked and the housing cover securely fastened Display Sequence on...

Страница 31: ...ck the four M6 screws that hold the unit to the pan tilt assembly Ensure that a small amount of anti seize lubricant p n 2421 has been applied to the first few threads of each M6 screw A packet of the lubricant is included with the pan tilt assembly Without lubricant alignment will be more difficult and bolts may seize Verify that the back two screws have been hand tightened but that the front two...

Страница 32: ...settle Continue until the signal level reaches its maximum and begins to decline Back out the back fine adjust screw 6 Secure all four M6 mounting screws tightening them gradually and alternately in a crisscross pattern to minimize change in alignment Verify that signal level is reduced by 10 or less increase of any amount is acceptable To complete alignment all four M6 mounting screws and the 24 ...

Страница 33: ... respond to gas leaks upon complete IR beam blockage Interruptions of the IR beam will delay the response time of this unit and thus lead to a potentially unsafe situation The Heavy Hydrocarbon version of the Model IR5500 Open Path System performs accurately and reliably for propane gas detection applications in extreme industrial environments However under certain conditions the Heavy Hydrocarbon...

Страница 34: ...lock exceeds the specified time delay The ppm m range of the IR5500 should be used as a warning that there is a gas leak This may allow action to take place before a leak reaches a hazardous level while the LEL m range should be used for a gas leak alarm NOTE The IR5500 will detect hydrocarbons other than methane and propane Consult the manufacturer for details regarding sensitivity to other hydro...

Страница 35: ...section Modbus commands are described in a separate Modbus programming manual available for download from the General Monitors website HART commands are described in the HART Field Device Specification available for download from the General Monitors website 4 1 Using the IR5500 Menus The IR5500 menus allow the user to complete many operational tasks Start the alignment of the Source and Receiver ...

Страница 36: ... block delay times diS Display Pct AJ Std Flip Ao1 4 20 mA LEL m HART fault levels enable disable Ao2 4 20 mA ppm m on off rLY Relays on off AL1 Warn ppm m energized latching setpoint AL2 Warn LEL m energized latching setpoint AL3 Alarm LEL m energized latching setpoint CH1 Channel 1 Modbus baud format address CH2 Channel 2 HART on off HM RM M T HOLD MAGNET REMOVE MAGNET APPLY MAGNET TIMEOUT IR550...

Страница 37: ...from 4 mA to 1 5 mA and the display will flash This mode allows the user to check the IR5500 response to a Test Gas Film without activating the relays and analog outputs After verifying the response remove the Test Gas Film The unit will return to normal operation If the Test Gas Film is not removed after 5 minutes the unit will revert to a fault condition If left in this mode for 5 minutes withou...

Страница 38: ...nd the displayed fault code changes from F1 to F3 ind IR Input Fault delay 0 to 60 Minutes before the F12 fault is active The Ao1 level changes to inF and the Receiver displays fault code F12 diS Display options Pct AJ Display alignment signal strength displayed as percent expected Pct or as a logarithm of signal strength during adjustment AJ Std FLP Display standard or flipped as a mirror image f...

Страница 39: ... M T rLY T T Alarm menus bb Beam Block Menu AOd Analog Output delay 4 mA to bbF mA AOd values 0 1 2 8 9 10 15 20 25 60 seconds oFd Output delay bbF mA to dEt mA oFd values 0 1 2 8 9 10 15 20 25 60 minutes ind Flash input fault delay 4 to inF mA ind values 0 1 2 8 9 10 15 20 25 60 minutes diS Signal Display Menu Pct Display alignment signal level as of expected AJ Display alignment signal level as ...

Страница 40: ...ics fault IR Input fault F0 Excessive Drift F3 Beam Block Low IR F7 Code Checksum F8 Fault While Zeroing F9 Gas Left F13 Memory F18 Dirty Lens F20 Alignment F21 Zeroing F22 RAM F5 Setup Menu F6 Receiver Low Supply Voltage F10 Relay Reset Short F11 Receiver Overheating F14 AO1 LEL m Circuit F15 Receiver Heater F19 Magnet Switch F23 Hardware Revision F24 Temperature Sensor F25 AO2 ppm m Circuit tF6 ...

Страница 41: ...ow IR F1 and Heater fault F15 6 Disable Dirty Optics F18 and Heater fault F15 7 Disable Close to Low IR F1 Dirty Optics F18 and Heater F15 SPL Split Range on or off Refer to Split Range Analog Output Option in the appendix Std FLP Display standard or flipped as a mirror image for reading via mirror when the display is close to a pipe tank wall or other surface Ao2 Analog 2 for ppm m on or off Not ...

Страница 42: ... Menu Tree rLy Relay Password required to turn relays off u19 61 AL1 Alarm Relay 1 0 5 000 0 2 000 ppm m En or dE Energized or De energized LA or nL Latching or Non Latching 2000 to 4500 Alarm level increments by 100 or IF ANALOG OUT 1 SPLIT IS OFF ...

Страница 43: ...tching 0 5 0 1 to AL3 Alarm level increments by 0 1 Value increments each time magnet is applied AL3 Alarm Relay 3 0 5 0 1 LEL m En or dE Energized or De energized LA or nL Latching or Non Latching If this relay is set to nL non Latching the IR5500 must be connected to an auxiliary system which is able to provide the same function as a latching relay i e the alarm can only be reset manually AL2 to...

Страница 44: ...M M T M T En dE La nL L1 5 T T M Fi T relay setpoint methane default AL2 M M T M T En dE La nL L3 0 T T M Fi T relay setpoint methane default AL3 M M M T M M M T M u T T M M relay set password 1 relay set password 2 T Only if rLY is on Only if rLY is on Only if rLY is on Other menus T Other menus T Propane defaults are P18 L0 3 L0 6 Alarm Menus En Energized dE De energized La Latching nL Non latch...

Страница 45: ...Model IR5500 31 CH1 Channel 1 Modbus br baud rate 2 4 4 8 9 6 19 2 or 38 4 kbps For Format 8n1 8E1 8o1 or 8n2 bits parity none Even odd stop bits Add Address CH2 Channel 2 HART HART on or off ...

Страница 46: ...M Pct HM Log HM Fi HM LEL or PPM M bb T T HM RM RM r T T M CH1 CH2 Fi M M br For Add T T Fi T 9 6 M M T 8n1 M M T 1 M M T T M T T Fi M on oFF T Hrt M T M T T Other menus Channel Menus CH1 Channel 1 Modbus br baud rate For Format Add Address CH2 Channel 2 HART Default values are in red ...

Страница 47: ...r alignment path interference and aging Source lamp The rSd is the relative standard deviation of reference flash input intensity The rEF is the average reference flash intensity An rSd 60 for ind time sets fault F12 An rSd 60 resets fault F12 The rSd and rEF values are updated every 30 seconds ...

Страница 48: ...in Flash Signal Input Menu The flash input data is used to diagnose poor alignment path interference aging Source lamp etc rSd relative standard deviation of reference flash input intensity after rSd 100 x ref stdev ref average ref stdev and ref average standard deviation and average of reference flash intensity rSd 60 for ind time sets fault F12 rSd 60 resets fault F12 rEF Reference flash after r...

Страница 49: ...ning a system using AJ Yd ntr ft Path length units in yards meters or feet where ntr is used for meters instead of mtr due to display constraints nAt At no attenuator attenuator 5 30 meter range Receivers only nLF LF no light filter light filter on the Source or A Alignment signal strength as percent expected or as a logarithm of signal strength during adjustment A AC flashing Alignment and zeroin...

Страница 50: ...Path length The default is the minimum length nAt no Attenuator 5 30 meter range only nLF no visible Light Filter Alignment and Zeroing Pct 100 x actual signal level expected signal level flashes for Pct 80 Pct 50 sets alignment fault F20 A is the legacy AJ number AC Alignment and zeroing in progress 0C Alignment and zeroing complete Yd ntr Ft M Len T nAT AT T nLF LF T Fi T M Pth A T AC M 0C T 20 ...

Страница 51: ...ration can make Zro 100 Event index 1 to 10 1 is most recent ddd runtime in days ddd before FLt shows the current runtime Fxx Fault code for the highest priority fault hi FF and lo FF High and low bytes of the fault code to indicate if there is more than one fault hi DD and lo DD High and low bytes of the diagnostics code to provide more detail on the cause of the fault ...

Страница 52: ... Log Menu Zro Zero offset after Zro Zero offset value Ideal is 100 ddd before FLt Current runtime in days FLt Fault after FLt Event number 1 to 10 1 is most recent ddd before Fxx Runtime in days at the time of fault Fxx Fault code for the highest priority fault hi FF and lo FF hi and lo bytes of fault code to indicate if there is more than one fault hi DD and lo DD hi and lo bytes of diagnostic co...

Страница 53: ...r should be stored in a clean dry area and within the temperature and humidity ranges noted for environmental specifications in Section 8 2 Insert the red dust caps into any vacant cable entry holes while the unit is stored NOTE The IR5500 will detect vapors from alcohol and other cleaning solvents 4 10 Display and Fault Codes The display codes during normal operation are SU Start Up This is displ...

Страница 54: ...o go to zero and the fault relay to de energize The LEL negative drift may occur when the system is first installed and not yet aligned Negative drift on the ppm range is not a dangerous condition as with a LEL negative drift The ppm negative drift does not put the IR5500 into a total fault Nonetheless it returns the ppm current to zero ...

Страница 55: ...onitors facility Failure to comply with this requirement will invalidate the warranty Be sure to inhibit or disconnect the external alarm wiring before making any check which might send the unit into alarm 5 1 Fault Codes The Model IR5500 Infrared Open Path System will indicate a fault code number on the three digit display as an aid to troubleshooting The following list identifies the fault codes...

Страница 56: ...ELc Yes F25 ELc No F11 ELc Yes tF6 ELc Yes F12 inF No tF7 ELc Yes F13 dEt No tF8 ELc Yes The system can detect gas during F1 provided that there is sufficient flash input signal The system cannot detect gas if no flash input is received 5 1 1 F0 Excess Negative Drift This fault indicates LEL m 10 of full scale LEL m ACTION Clean the optics Remove any partial blockage in the beam path Verify that t...

Страница 57: ...oltage Input at the Receiver ACTION Ensure the supply voltage at the Receiver is within specification 5 1 7 F7 Code Checksum This fault indicates a fault in device program memory ACTION Cycle power If the fault persists contact the factory 5 1 8 F8 Fault during Zeroing This fault indicates that a fault occurred during zeroing ACTION Repeat zeroing with no faults present 5 1 9 F9 Gas Left This faul...

Страница 58: ...stem so that the beam path is clear Clean optics Prevent flash input from another Source by either swapping Source and Receiver or changing system orientation Verify that the Source voltage supply exceeds minimum requirements Ensure that mounting for the Source and Receiver is stable Review the flash input fault delay time ind see Section 4 4 5 1 13 F13 Non Volatile Memory NVM Checksum This fault ...

Страница 59: ...gnment signal was below 50 of the expected value or AJ was below 20 ACTION For Pct verify that the path Pth values in the user menu are correct Carefully follow instructions for system alignment for maximum signal level Verify that the beam path is clear without any obstruction Verify that the beam path length is within the specified range for the system 5 1 20 F21 Zeroing The zero offset was exce...

Страница 60: ...ontact the factory 5 1 27 tF8 Source Overheating This fault indicates that the Source is over temperature The IR5500 continues to detect gas but its accuracy is degraded and the long term reliability is compromised ACTION Ensure that the ambient temperature for the Source is within specification 5 2 Other Troubleshooting Tips 5 2 1 Source does not flash Verify whether or not the Source is fitted w...

Страница 61: ...e beam path from the Source to the Receiver is free of obstruction On the Receiver and on the Source with power removed from the Source verify that the window on each unit is clean and that an attenuator is not in place 5 2 5 Receiver does not respond to the magnet Try a slightly different location for the magnet 5 2 6 Receiver signal level number went to 0 with no A on the display Apply the magne...

Страница 62: ...k Macclesfield Cheshire United Kingdom SK11 0LR Phone 44 1625 619 583 IRELAND Ballybrit Business Park Galway Republic of Ireland H91 H6P2 Phone 353 91 751175 SINGAPORE No 2 Kallang Pudding Rd 09 16 Mactech Building Singapore 349307 Phone 65 6 748 3488 MIDDLE EAST PO Box 54910 Dubai Airport Free Zone United Arab Emirates Phone 971 4294 3640 Table 4 Locations Additional locations can be found on our...

Страница 63: ...The customer will assume all liability for the misuse of this equipment by its employees or other personnel All warranties are contingent upon proper use in the application for which the product was intended and do not cover products which have been modified or repaired without General Monitors approval or which have been subjected to neglect accident improper installation or application or on whi...

Страница 64: ...ocations Classification CSA FM Class I Division 1 2 Groups B C D Class II Division 1 2 Groups E F G Class III T4 Tamb 55 C to 65 C for FM T3C Tamb 60 C to 75 C for CSA ATEX IECEx II 2 G D Ex d IIB H2 T4 Gb Ex tb IIIC T135C Db IP66 67 Tamb 55 C to 65 C IEC 60079 29 4 FM10ATEX0031X IECEx FMG 10 0011X Path Lengths 5 30 m 20 100 m 80 150 m 5 m achieved with attenuator Modes Set up test mode alignment ...

Страница 65: ...o reading 4 04 mA 4 04 mA 4 04 mA 0 5 LEL m 4 20 mA 4 20 mA 4 20 mA Split Range 4 12 mA for 0 5000 ppm m methane or 0 2000 ppm m propane 12 20 mA for 0 5 LEL m methane or 0 1 LEL m propane 4 12 mA for 0 5000 ppm m methane or 0 2000 ppm m propane 12 20 mA for 0 5 LEL m methane or 0 1 LEL m propane 4 12 mA for 0 5000 ppm m methane or 0 2000 ppm m propane 12 20 mA for 0 5 LEL m methane or 0 1 LEL m p...

Страница 66: ...ed on cable specifications expected maximum ambient temperature and cable temperature rise estimated connection losses allowances for error in distance measurement and other variables particular to the customer installation Sample Calculations for Power Cable V_supply 24 VDC V_device 20 VDC I_Receiver_max 0 50 A cable resistance per meter 9 00 ohms per meter at maximum ambient temperature for 2 5 ...

Страница 67: ...eral Monitors Representative or General Monitors directly and give the following information Configuration Number Description Quantity 7 3 1 Spare Parts 329071 1 Pan Tilt Base Assembly 329073 1 Pan Tilt Arm Assembly 329123 1 Basic Mounting Arm Assembly No longer available 329083 1 Methane Test Gas Film Kit 329084 1 Propane Test Gas Film Kit 329113 1 Attenuator 329118 1 Lamp Replacement Kit 954 021...

Страница 68: ...Model IR5500 54 7 4 Engineering Documentation Figure 16 Outline Drawing ...

Страница 69: ...alog output mode This mode gives the advantages of very high sensitivity of the ppm m range and the full range detection of the LEL m scale The analog output range from 4 to 20 mA is split so that values from 4 to 12 mA represent 0 5 000 ppm m and values from 12 to 20 mA represent 0 5 0 LEL m For the heavy hydrocarbon version of the Model IR5500 detector the ranges are 4 to 12 mA represent 0 2 000...

Страница 70: ...the magnet when Fi appears The display will cycle through more menu choices When Fi appears again apply the magnet to exit the setup menu For a diagram of the menu choices refer to the User Menu in the Operation section During alignment verify that the AJ level is comparable to typical values listed below For 80150 meter configuration add 50 meters to the range Range 20 m 30 m 40 m 50 m 60 m 70 m ...

Страница 71: ...s EU Member states shall dispose according to WEEE regulations For further WEEE disposal information please visit www MSAsafety com All other countries or states please dispose of in accordance with existing federal state and local environmental control regulations ADDENDUM ...

Страница 72: ...7 Lithium grease v Misalignment 37 Modes 37 NEC 500 3d or Canadian Electrical Code Handbook vi 11 Operating Range 39 Output Options 23 path length is less than 20 meters 8 Performance Temperature 37 Product Compatibility 37 Relay Ratings 38 resolution x 17 Response Time 37 RFI EMI Protection 38 RS 485 Output 38 Safety temperature range 37 Spare Parts and Accessories 40 Split Range analog output op...

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