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Oldham MX 52, Руководство по установке

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Содержание MX 52

Страница 1: ...Installation manual MX 52 MEASURING UNIT Part Number NP52IGB Revision B 0 The Fixed Gas Detection Experts ...

Страница 2: ... this document in any form whatsoever without the written permission of Oldham S A S is forbidden The information contained in this manual is accurate to our knowledge As a result of continuous research and development the specifications of this product may be modified at any time without prior notice ...

Страница 3: ...SPECIFIC USE C C L L A A U U S S E E S S C C O O N N C C E E R R N N I I N N G G P P R R O O P P E E R R T T Y Y Drawings plans specifications and information included in this document contain confidential information that is the property of OLDHAM None of this information may be reproduced copied divulged or translated by physical electronic or any other means nor used as the basis for the manufa...

Страница 4: ... 4 ...

Страница 5: ...ctors with standardized current output 11 1 3 9 Parking application 12 1 4 Connecting the unit to external devices 12 1 4 1 Slaving controls 12 1 4 2 4 20 mA current outputs Fig 12 13 1 4 3 RS 232 and RS 485 outputs 13 1 4 4 Remote acknowledgement 14 2 SWITCHING ON 15 2 1 CHECKING THE INSTALLATION 15 2 2 SWITCHING ON THE FACILITY 15 2 3 OPERATING MODES 16 2 3 1 Buzzer 16 2 3 2 Light emitting diode...

Страница 6: ... OLDHAM DETECTORS TO THE MX52 DEVICE 24 5 3 1 Device transfer curves in 0 to 100 LEL configuration 24 5 3 2 Device transfer curves in 0 to 30 0 OXYGEN configuration 25 5 3 3 Power supply and load resistance characteristics 25 5 4 MARKING 25 6 VIEWS DEPICTED IN THE LEAFLET 29 ...

Страница 7: ...tom left of the FRONT circuit see Fig 4 and Fig 26 1 2 ELECTRICAL CONNECTIONS FOR THE MX52 FACILITY Fig 8 The facility is equipped with an automatic switching device for connecting to the 24 V DC voltage should the 220 V AC mains voltage be absent and hence it is possible to use inexpensive backup power supplies 1 2 1 AC supply Voltage 230 V AC 207 to 224 V 50 60 Hz Maximum power 300 VA maximum cu...

Страница 8: ... sensors are linked by SHIELDED cables The use of shielded cables is OBLIGATORY The ground braid of the shielded cables must be earthed at one end 1 3 1 Explosimetric detectors of PONT type Three connecting wires for a shielded cable Resistance of detector unit cable 16 ohms maximum per wire i e 32 ohms in loop 1 km for cable 3 x 1 5 mm Connection on MX52 unit see Fig 10 ATTENTION Each channel has...

Страница 9: ...ations Ionic detectors of type EI 1 100 sensitive to smoke Optical detectors of type EO 1 100 sensitive to smoke Resistance of detector unit cable 28 ohms maximum per wire i e 56 ohms in loop 2 km for cable 2 x 1 5 mm Fire detectors can be detected in parallel to a maximum of five The end of loop resistor 2 7 K is to be placed at the end of the line on the last detector Connection on MX52 unit see...

Страница 10: ... maximum per wire i e 17 ohms in loop In the case of power supply via the MX48 unit 3 ohms maximum per wire i e 6 ohms in loop 4 ohms for detector 20 20 I IR3 Connection on MX52 unit ONE detector per measuring channel ONLY detector equipped with a terminal block of type A see Fig 13 detector equipped with a terminal block of type B see Fig 14 detector equipped with a terminal block of type C see F...

Страница 11: ... resistance of 12 ohms each REMARK In classified areas the installation must comply with the standards in force Connections on MX52 unit see Fig 21 IMPORTANT All intrinsic safety installations must be APPROVED as a whole assembly by an approved organization DRIRE etc OLDHAM INTRINSIC SAFETY BARRIERS Type of IS barrier Reference Specific features OLDHAM box reference Z787 EX 6184703 To be fitted on...

Страница 12: ...g board see Fig 12 An example of connection is given in Fig 24 a siren connected to relay AL1 will be actuated as soon as alarm 1 is triggered a solenoid valve connected to relay AL2 will be actuated as soon as alarm 2 is triggered For all channels A common relay associated with the triggering of alarm 3 for the 16 channels By programming this common relay can also be used for the remote transmiss...

Страница 13: ... MEASUREMENT I 4 mA Full scale I 20 mA Out of range or in doubt I 23 2 mA An example of the connection of a multi channel recorder is given in Fig 25 1 4 3 RS 232 and RS 485 outputs RS232 OUTPUT A computer can be connected on a female sub D DB9 type connector located on the back of the micro board fig6 repA The MX52 programming from outside will be possible thanks to this connection RS 232 OUTPUT ...

Страница 14: ...t is located on the MX52 micro board and must be programmed with the last MX52 unit of the loop by pins with a 120 Ohms value The MX52 stored data are some instantaneous values The RS485 output is a half duplex type RS 485 OUTPUT USING No change the sub D DB9 plug connector Connect the screwed connector terminals 3 4 and 5 located on the back of the MX52 unit repB Fig6 See connection details fig 2...

Страница 15: ...afety The MX52 facility is switched on by pivoting the front panel pressing the ON OFF button located at the bottom left of the FRONT circuit see Fig 4 and fig 26 ref A the following then appears on the display for example The facility then goes into SETUP for 1 minute Hence for those channels which are in service all the alarms are disabled and the output currents are 1 mA The facility also perfo...

Страница 16: ...tion AL 1 threshold exceeded with manual cancellation and not cleared 2nd red AL 2 not triggered AL2 threshold exceeded with automatic cancellation AL 2 threshold exceeded with manual cancellation and not cleared 3rd red AL 3 not triggered AL 3 threshold exceeded with automatic cancellation Yellow No fault Channel faulty channel being calibrated or programmed Sensor being calibrated 2 3 3 Alarm th...

Страница 17: ...minute after switching on and if no test action is performed on the keypad the facility scans all the live channels in succession and displays the values mesured Examples of the display OR Each channel is interrogated for 10 seconds The user can interrogate a channel manually by selecting this channel with the and keys for manual display lasting 1 min The user can return to normal cyclic scanning ...

Страница 18: ... 18 ...

Страница 19: ...ous channel Combined with the PLUS key for reinitiating the automatic channel display cycle MAINTENANCE MODE Manual display of the previous menu Decreasing the value thereshold etc Displaying the previous selection ON OFF etc NO NORMAL MODE Manual display of the next channel Combined with the MINUS key to reinitiate the automatic channel display cycle MAINTENANCE MODE Manual display of the next me...

Страница 20: ...after opening and pivoting the front panel Combined with the key to go back through a menu Used for exiting the normal display mode and for accessing the various menus see the overview of the various menus used to scroll through a menu CALIBRATION key Ref C Fig 26 can be accessed after opening and pivoting the front panel places a channel into CALIBRATION mode Used to exit this same mode CLEAR ...

Страница 21: ...ional use of natural resources MX52 has to be the object of a selective collection for the electronic equipments and cannot be scrapped with the normal domestic waste The user thus has the obligation to separate the MX52 of the other waste so as to guarantee that it is recycled in a sure way at the environmental level For more details of the existing sites of collection contact the local administr...

Страница 22: ... 22 ...

Страница 23: ...Installation will comply with all applicable standards and particularly with EN 60079 14 EN 60079 17 and EN 50281 1 2 The MX52 device must not be subject to intense mechanical vibration and must be installed in a safe area away from potentially explosive atmospheres It is essential to refer to the user and installation manuals for the gas detectors referred to above particularly the paragraph enti...

Страница 24: ...heir compatibility with the device in order that the resulting combination may be considered as a safety device 5 3 1 Device transfer curves in 0 to 100 LEL configuration The following curve shows the response of the device in terms of value measured and fault processing as a function of the input current value supplied by the detector Where the user connects a brand of detector other than OLDHAM ...

Страница 25: ...LDHAM to the MX52 device he must check carefully that the transfer curve is fully compatible with the device input characteristics to ensure that the data generated by the detector is correctly interpreted Equally the device must supply a suitable power supply voltage allowing for cable voltage losses 5 3 3 Power supply and load resistance characteristics Maximum current available between terminal...

Страница 26: ... 26 ...

Страница 27: ... 27 ...

Страница 28: ... 28 ...

Страница 29: ... 29 6 6 V Vi ie ew ws s d de ep pi ic ct te ed d i in n t th he e l le ea af fl le et t ...

Страница 30: ... 30 MX52 OVERALL DIMENSIONS FIGURE 1 ...

Страница 31: ...ng functions Buzzer FRONT interconnection board Rear view of power module Micro board 8 measuring line boards with 2 channels each Board extractor grip Connector for an odd numbered channel 2 measuring channels board LED Adjusting potentiometer for an even numbered channel MX52 INTERNAL COMPOSITION FIGURE 4 ...

Страница 32: ...V Fuse 24 V Mains relays 110 V Common relays Common relays output Fuses 24 V Item B Power supply 24 V Earth terminal Mains socket with internal fuses item A Rear view of power module POWER BOARD AND MODULE FIGURE 5 ...

Страница 33: ... 33 B MICRO BOARD FIGURE 6 A ...

Страница 34: ...pers opened or closed contacts Jumpers opened or closed contacts MEASURING CHANNEL BOARD FIGURE 7 Signal fuse Even numbered detector AL1 and AL2 relays Even numbered channel Fuse even numbered line Potentiometers Even numbered channel Potentiometers Odd numbered channel Signal fuse Odd numbered detector Fuse odd numbered line ...

Страница 35: ...24 VDC power terminal Item D FIGURE 8 Fuses Item E Earth terminal Item C Mains power socket Item A Mains fuses Item B MX52 24 V 240 230 V 50 60 Hz 300 VA 115 V 50 60 Hz 300 VA 230 V 115 V T T 2A 4A DEF REAR VIEW OF POWER MODULE ...

Страница 36: ...UNE CARTE DE MESURE CONNEXIONS POUR CAPTEUR Fig 9 Odd numbered channel Odd numbered detector minus plus signal Even numbered detector Even numbered channel REAR VIEW OF A MEASURING BOARD CONNECTIONS FOR DETECTOR FIGURE 9 ...

Страница 37: ...ered channel PONT explosimetric detectors minus plus signal 3 wire 4 20 mV detectors Even numbered channel EXAMPLE OF CONNECTION OF EXPLOSIMETRIC DETECTORS AND 3 WIRE 4 20 mA DETECTORS ON MX52 FIGURE 10 MX52 board ...

Страница 38: ...2 wire 4 20 mV detectors Detector 1 R 2x3 9K Ω en Fire detectors ionic or optical Note The 2 7 kΩ resistor is to be placed at the end of line on the last detector 3 maximum Attention to the configuration of the measuring channel 2 2 7 7 4 4 MX52 Board Even numbered channel Detector 2 FIGURE 11 ...

Страница 39: ...red channel Opened or closed contacts as desired 4 20 mA current output Contact REL AL1 Contact REL AL2 Detector Even numbered channel 4 20 mA current output Contact REL AL1 Contact REL AL2 Opened or closed contacts as desired FIGURE 12 MEASURING CHANNEL BOARD OUTPUTS ON REAR CONNECTOR ...

Страница 40: ...IGURE 21 Connector on MX52 measuring channel board Explosive atmosphere Si barrier clipper Type MTL787S Explosive atmosphere Si barrier clipper Type Z787S EX Detector CTX COX 100 Detector CTX COX 100 Terminal block other detector Terminal block other detector ...

Страница 41: ...ECTORS OTHER THAN OLDHAM MODELS Power supplied by MX52 unit FIGURE 22 MX52 board Terminal block Terminal block minus 3 wire 4 20 mV detectors other than OLDHAM models 2 wire 4 20 mV detectors other than OLDHAM models ...

Страница 42: ... 42 FIGURE 23 EXAMPLE OF PARALLEL WIRING OF 2 DETECTORS OF CTX 300 Co parking TYPE 5 maximum MX52 board Detector TOX1 Detector TOX2 ...

Страница 43: ...OF CONNECTION OF EXTERNAL DEVICES TO THE ALARM 1 AND 2 RELAY CONTACTS OF A MEASURING CHANNEL FIGURE 24 MX52 Board Siren Solenoid valve Even numbered channel Odd numbered channel Relay AL1 contact Relay AL2 contact ...

Страница 44: ... 44 EXAMPLE OF CONNECTION OF A RECORDER TO THE 4 20 OUTPUT OF A MEASURING CHANNEL FIGURE 25 Odd numbered channel MX52 Board Even numbered channel 4 20 mA current output Recorder ...

Страница 45: ...OMPONENTS FIGURE 26 Fluorescent display panel Channel 1 Item E Channel 3 L E D Fault ON User keypad Item D On Off button Item A Programming key Item B Calibration key Item C Option Buzzer strap Buzzer Off Buzzer On Channel 2 Channel 4 ...

Страница 46: ... 46 Acquit à distance Sortie RS 485 l blindée ou non CONNECTIONS TO THE CONNECTOR LOCATED BACK TO THE MX 52 on MICRO board Remote ackowledge RS485 output 1 shielded or not FIGURE 29 ...

Страница 47: ......

Страница 48: ...ng the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specifications are subject to change without notice The user is responsible for determining the suitability of this product ...

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