MX 15_rev B.1_English
Contents
1. 7 NIMES nn nn RE RE dede ce do ee nee D de ee de ans 7 Chapter 4 Operating instructions 13 Display indications for start up 13 Channel measurement display ccccccceccceeeeeeeeeeeeeeecnneeeeeeeesteeecaeeeeeees 13 MOTU SA SES RS a A A TL ee a ASTEESSA 13 Chapter 5 Cleaning servicing and maintenance ssssssssseeen 19 Gleanind seit cadet E E E EE Gonna Gai 19 Maintenance and servicing ce cece cece eee e eee eee eeeeteeeeeeeeeeeeeees 19 Fuse replacement seems 20 PAS SES take sete en en E tete te VE 20 Chapter6 Declaration of Conformity 21 Chapter7 Technical Specifications 23 Table of Contents iii Chapter 8 Particular Specifications 25 iv Specifications for mechanical and electrical installations in Explosive Zones 25 Metrological specifications 25 Connecting detectors other than Oldham detectors to the MX 15 controller c cceeeceeeeeeeeeeeeneeeeeeeeeeteee 26 WarkindS annan RERAN 26 MX 15 Instruction Manual Chapter1 General Information The User s Guide Please read the following notice carefully before installation and start up paying particular attention to the end user safety instructions This user s guide should be distributed to every individual involved in the start up use maintenance or repair of the system The information contain2. 25 Connecting detectors other than Oldham detectors to the MX 15 controller Any user wishing to use detectors other than Oldham detectors must ensure that they are compatible with the controller in order for the unit to be considered a safety device Configuration transfer curve 0 to 100 LEL The following curve demonstrates the controller response in terms of values measured and treatment of faults as a function of the value of the input current delivered by the detector In the case that the user connects a non Oldham brand detector to the MX 15 controller the user must ensure that the transfer curve is compatible with the input characteristics for the controller so that the information delivered by the detector will be properly interpreted In addition the controller must provide sufficient supply voltage taking into account voltage drops in the cables LEL Display in ABOVE 100 LEL Signal delivered by 0 LEL the detector in mA 15 LEL 16 4 20 mA Figure 9 Configuration transfer curve 0 to 100 LEL Caution when the measurement is above or equal to 100 LEL the measurement controller records that the scale has been exceeded the channel switches to alarm and fault mode The user is responsible for manually rearming these settings following the safety regulations applicable at their site Rearming can be accomplished by restarting the controller or through a maintenance operation Power supply and
3. Reminder for security reasons only trained personnel should be authorized to use the following menus Viewing the menus To quit normal operating mode and view the list of menus Press the MENU button a Using the amp and buttons enter the standard access code 1000 a Usingthe or x or buttons view the available menus to see 4 Operating instructions 13 Menu See page PROGRAMMING PRG 14 FAC factory settings START UP STA 15 CODE COD 15 BUZZER BUZ 16 TEST TST 16 The FAC menu is not described here as it is reserved exclusively for Oldham s use Do not use this menu without prior training Menu Confirmation Bring up the desired menu as directed in the Viewing the menus paragraph a Confirm the menu by pressing ENTER z Exiting a menu ESCAPE Press the and and buttons together and validate or reject the changes Press ENTER to quit without saving the changes Press and then ENTER z to quit and save the changes made Programming Menu A maintenance key Pa is displayed while the programming menu is being used This menu allows the user to program measurement channel configurations such as a Start Stop blinking yellow LED a Chemical symbol for the gas detected CH4 CO etc a Unit of measure LIE ppm etc a Measurement scale and decimal point 0 1 1 0 10 100 1000 etc a Programm
4. OSATENOLW Oldham certification file manher 1 reethy rop enne CEM 904 8i lu 151204 Compatibilit Electromugnetique The European Directive EMC 2004 JO08RCEE of 151204 ELECTROMAGNETIC COMPATIBILITY Normes hanmonis es appliqu es EN 30270 06 for type I amp CEM Appareals de d tection de gaz Harmonised applied Standards EMC apporenu for the detection of gases The Exropeen Directive LUD 20069S CEE of 27 12 2006 Concerning Low Voltage Normes harmonis es apphqu ees EN 61010 1 10 R gles de s curite pour apperetls Harmonised applied Standard lectriques de mesurage Safety requirements for electrical equipment for measurement Arras le 1809 2023 Michel Spellemacker soem ee Oldham SAS M ZLEST CS W47 DUT 2027 ARRAS Cedex PRANCE 4 olen ay cin ES Global Director of Product Management CE_ATEX_MX ind C 6 Declaration of Conformity 21 7 Technical specifications 22 Chapter 7 Technical Specifications Mounting enclosure on a DIN rail Dimensions 185 x 157 x 67 mm Material ABS plastic Cable input outputs 3 M20 cable glands 5 5 to 12 mm cable diameter 1 M16 cable gland 4 to 8 mm diameter allowance for direct input through the enclosure wall Protection IP31 Power supply Power supply 230 VAC or 115 V AC 21 V to 30 V DC Power consumption 16 VA Connections Type spring terminal Cable diameter 2 5 mm maximu
5. and two OLCT 10 sensors for detection of the same toxic gas maximum 5 sensors MX 15 Instruction Manual LABRERERSNEANRES J18 RL2 J17 DEF mn J19 RL1 EN nf x m Relay contact output voltage l free m NO or NC depending on the position of switches J17 J18 Sector and J19 230 VAC DEF REL1 REL2 OV DC 24 V DC Acknowledgment button MX15 OLCT10 gt Figure 6 MX 15 controller and two type OLC 10 TWIN sensors 3 Installation and wiring 11 Soe J 1G RL2 J17 DEF poea Ei oR jo 1e LA ipigi m Relay contact output voltage free m NO or NC depending on the position of switches J17 J18 and J19 230 VAC DEF REL1 REL2 OV DC 24 V DC Acknowledgment button Figure 7 MX 15 controller and a 3 active wire EXPLO or TOXIC sensor 12 MX 15 Instruction Manual Chapter 4 Operating instructions Display indications for start up When starting up the controller the following indications will be displayed a Software version a Maintenance access code a Programmed alarm thresholds a Stabilization time The measurement from the sensor Channel measurement display The MX 15 controller displays the measurement continuously It is possible to hide the measurement by pressing the and buttons on the keyboard together The MX 75 will then display OK To return to the measurement display press x or E Menus
6. is provided by fuse F7 Figure 2 ref C The sector power supply must be wired to the two terminals marked L orange and N blue Figure 2 ref E as indicated by the wiring examples on pages 10 to 12 Power supply 24 V DC The 24 V DC power supply is connected to the terminals marked 0 and 24V Figure 2 ref F as indicated by the wiring examples on page 9 This input is protected by fuse F8 Figure 2 ref B Measurement Channels Sensors The different types of sensors should be connected to terminals C1 C2 and C3 Figure 2 ref E as indicated by the wiring examples on page 9 Wheatstone bridge 3 active wire explosive gas detectors a Ci mid point signal a C2 detector filament a C3 compensator filament 8 MX 15 Instruction Manual 4 20 MA 2 active wire sensors transmitters a C1 signal return to ground a C2 not connected a C3 power supply 24 Volts 4 20 mA 3 active wire sensors transmitters a C1 signal return to ground a C2 power supply 0 Volts C3 power supply 24 Volts Note a Each type of sensor has a different programming circuit Explo 340 mA or 4 20 mA installed during manufacturing Figure 2 ref A a Each line may be connected to a maximum of 5 OLCT 10 toxic gas sensors In this case circuit programming must be Figure 2 ref A completed by trained staff Alarm relays The MX 15 controller uses two alarm relays which correspond to two instant pre pro
7. should only be performed by a qualified professional The fuses in use must conform to CEI 127 regulations time delayed low breaking capacity etc Please see the following paragraph Parts 5x20 Fuse 250 V AC 630 mA T 6 154 627 5x20 Fuse 250 V AC 100 mA T 6 154 734 Complete electrical panel 6 451 569 Settings access panel 6 123 711 Fastening screws for settings access panel 6 902 569 Pre equipped front panel adhesive front plate fixed access panel for 6 323 648 settings 4 screws 20 MX 15 Instruction Manual Chapter 6 Declaration of Conformity D claration de Conformit CE EC Declaration of Conformity OLDHAM La Soct t Oldham S A S ZI Est 62000 Arras France atteste que la The Company Okiham S A S ZI Ext 62000 Arras France declares that the Centrale de mesure MX 15 MX 15 Controller Reli e aux d tecteurs de gaz connected to gas detectors CEX 300 TBGW Ex OLC T IR 10 20 40 50 60 100 est conforme aux exigences des Directives Europ ennes suivantes complies witir the requirements af the following European Directives 7 i r gt 3 j The European Directive ATEX 94 9 CE of 2303 9 Explosive Atmospheres Normes appliqu es EN 61779 1 EN 61779 4 Appited Standards Exigences d aptitude la fonction des d tecteurs de gaz mflammables Performance requirements of detectors for flammable gases Cat gone Category E naa N de dossier de certification OLDHAM OSA
8. the detection of methane butane propane in boiler rooms and LPG CNG or H2 in parking lots a 1 to 5 detectors also OLCT 10 for the detection of CO NO and NO2 Wire Length OLC 10 and OLC 10 TWIN 300 m max in 3x1 5 mm 4x1 5mm with both the OLC 10 TWIN a OLCT 10 EXPLO 1000m in 1 5mm2 a OLCT 10 TOX 2000m in 1 5mm2 Operating conditions Ambient temperature 10 to 45 C Storage temperature 10 to 40 C Humidity 5 to 95 non condensing Certifications ATEX Directive 94 9 EC category 3 G for metrology in the detection of explosive gases EN 61779 1 and 4 in Zone 2 Low Voltage Directive under EN 61010 Electromagnetic Compatibility EMC Directive 24 MX 15 Instruction Manual under EN 50270 Chapter 8 Particular Specifications Particular Specifications for use in Explosive Atmospheres in Accordance with the European ATEX 94 9 EC Directive The MX 15 detection controller intended for the measurement of explosive gases conforms to European ATEX Directive 94 9 CE pertaining to explosive atmospheres The MX 15 detection controller is certified in accordance with EN 61779 1 and EN 61779 4 metrological performance as a safety device for ATEX Zone 2 The controller can also reduce the risk of explosion by sending data to outside units Information in following paragraphs must be taken into account and followed by the person responsible for the equi
9. Installation and Operating Manual M X 15 SINGLE CHANNEL CONTROLLER OLDHAM ee OLDHAM The Fixed Gas Detection Experts Part Number NPM15GB Revision B 1 Copyright 2013 by Oldham All rights reserved Reproduction in any form in whole or in part without the express written consent of Oldham is strictly prohibited The information contained within this manual is true and correct to the best of our knowledge Due to ongoing research and development the specifications of this product may be changed at any time without notice Oldham Rue Orfila Z I Est CS 20417 F 62027 ARRAS Cedex Phone 33 0 3 21 60 80 80 Fax 33 0 3 21 60 80 00 Table of Contents ii Table of Contents Chapter 1 General Information 1 The User s Guide nachahkchkehokehninhknhnhnininhniniteien tein tn 1 SVMBDOISIUSCO 6 3 eo cey i pass ra ere Pass sade Seat sas Favs sade Sout pasa nt syngas 1 Safety Warnings 2 ImportantIntormaton Renard 2 Limitation of ability hante 2 Chapter 2 Genaral Introduction 3 Purpose of the controller ss 3 View Front Res SERRE RAR RSR RSR RER RER RER RSR RE RSR SNS 3 reaa LR LR MR RAR RAR RAR RAR ARE Aiea 4 MiOWS REAM ED E P E P P P E P E P B A P P D P E E E 5 Chapter3 Installation and wiring 2 ccecseseseeeeeeeeeeeeeeeeeeees 7 Mounting the controller
10. be disposed with household waste Dispose of this product at a collection site intended for electrical waste for example an official EEE Electrical and Electronic Equipment collection site with a recycling or take back program for authorized products available to consumers whose purchases replace old EEE products with new equivalents Failure to comply with regulations for the disposal of this type of waste can be harmful to the environment and to public health as EEE products typically contain potentially hazardous substances Your complete cooperation in the disposal of this product will help to ensure a more efficient use of natural resources Safety Warnings Icons have been placed on the central controller to call attention to general use safety precautions These labels are an integral component of the central controller Replace any label that has peeled off or become illegible The meanings of these labels are explained below Installation and electric connections should be performed by a qualified professional according to Oldham s specifications and to the standards of authorities in the field Failure to observe these rules may result in serious injury Exactness particularly regarding electricity and assembly couplings network connections is imperative Important Information The modification of any component or the use of any third party components will automatically void any and all guarantees The central controll
11. e controller with the power supply disconnected electric power cut a Respect the current regulations NF C 15 100 a Use a power cable connected to the grid 230 VAC with a minimum diameter of 1 5 mm and a maximum diameter of 2 5 mm 3 Installation and wiring 7 Verify the current and the grid power supply the grid power supply must correspond to the supply indicated on the controller front plate The MX 15 does not have an on off switch Certain power supplies can cause serious or fatal injury All installation and wiring should be performed before turning on the power supply Incorrect installation can lead to measurement errors or system failure all instructions in this manual must be followed carefully to guarantee proper system operation Functional ground connection The controller must be connected to a functional ground connection The ground terminal yellow Figure 2 ref D is indicated with the following symbol Refer to the wiring examples on pages 10 to 12 Power The controller must be protected upstream by a differential bipolar circuit breaker with a nominal current of 0 5 A The response curve must be type D Power supply 230 V AC Protection is provided by fuse F7 Figure 2 ref C The sector power supply must be wired to the two terminals marked L orange and N blue Figure 2 ref E as indicated by the wiring examples on pages 10 to 12 Power supply 115 V AC Protection
12. ed in this manual the data and technical drawings are correct as of the date of publication Should questions arise please contact Oldham for additional information This manual is designed to provide users with simple and precise information Oldham shall not be held responsible or liable for any misinterpretation that may result from the reading of this manual Although every effort is made to ensure accuracy this manual may contain unintentional technical inaccuracies On behalf of its clients Oldham reserves the right to modify the technical characteristics of its equipment without notice to improve product performance This user manual and its contents are the inalienable property of Oldham Symbols used Icon Meaning This symbol indicates useful additional information This symbol indicates This equipment must be grounded This symbol indicates Safety grounding terminal A cable of adequate diameter must ground any terminal with this signal This symbol indicates Caution In the current operating mode failure to adhere to the instructions preceding this symbol can result in a risk of electric shock or death This symbol indicates Please refer to the instructions Double isolation a gt e O 1 General Information 1 European Union and EEA only This icon indicates that in accordance with Directive DEEE 2002 96 EC and with the regulations of your country this product may not
13. er is intended to be used for precise applications of a technical nature Exceeding the indicated values is strictly prohibited Limitation of liability Neither Oldham nor any other affiliated organization shall be held liable under any circumstances for any damage whatsoever including without limitations damages for loss of production interruption of production loss of information controller failure personal injury loss of time money or materials or for any indirect or consecutive consequence of loss occurring during the use of the product or the inability to use the product even in the event that Oldham had been informed of such damages 2 MX 15 Instruction Manual Chapter 2 Genaral Introduction Purpose of the controller The MX 15 measurement and alarm controller is intended for simple installations that do not require an electrical cabinet The MX 15 controller can be connected to combustible or toxic gas detectors or oxygen detectors The measurement from the detector is displayed on the MX 15 and compared to the alarm thresholds In the event that the measurement exceeds the threshold the controller activates the relays which can control external components View Front The MX 15 controller is composed of the following components a An enclosure with access cover Figure 1 ref E for the settings zero sensitivity a A motherboard Figure 2 for all of the system components power display relays and con
14. grammed alarm thresholds The relays are energized or with a powered coil with no gas alarm activated negative security available on request and voltage free REL terminals correspond to the REL1 relay contacts alarm 1 REL2 terminals correspond to the REL2 relay contacts alarm 2 The relay contacts can be used normally open NO or normally closed NC by flipping the corresponding switch Figure 2 ref M or R Refer to the wiring examples on pages 10 to 12 Relay fault The fault relay is energized and voltage free Terminals marked DEF correspond to fault relay contacts trouble The relay contact can be used normally open NO or normally closed NC by flipping the corresponding switch Figure 2 ref L Refer to the wiring examples on pages 10 to 12 Remote acknowledgment A remote acknowledgment button can be connected to the MX 15 controller at the terminals marked Acknowledgment Figure 2 ref G dry voltage free contacts at a maximum distance of 2 meters Refer to the wiring examples on pages 10 to 12 Wiring examples The following pages contain examples of wiring 3 Installation and wiring 9 10 L Saeeeenenease Ss J18 RL2 ES J17 DEF m J19 RLI Ig m Relay contact output voltage free NO or NC depending on the position of switches J17 J18 and J19 Sector 230 VAC DEF REL1 REL2 Acknowledg ment button Figure 5 MX 15 controller
15. ing the two gas alarm thresholds The corresponding red LED alarm will light up during this stage a Options for clearing gas alarms 1 Manual MAN If the gas level comes back down to below the preset alarm threshold the alarm will need to be manually acknowledged by pressing the Acknowledge button x 2 Automatic AUT If the gas level comes back down to below the preset alarm threshold the alarm will be acknowledged automatically Time delay in minutes and seconds for alarm relay triggering Blinking yellow LED light Alarm threshold LED alarm Delay Alarm relay exceeded and buzzer switching Figure 8 depiction of alarm triggering 14 MX 15 Instruction Manual Time delay in minutes and seconds for alarm relay triggering the yellow LED is on continuously Time delay for connecting the unit to the power supply blocking the relays the yellow LED blinks and the icon dE is displayed Indication of the type of sensor used such as Bridge in Bridge filaments types OLC 10 OLC 100 etc EXP EXPLO explo 4 20mA type OLCT 10 etc Fire fire ionic optic etc 02 oxygen Oth others toxic etc a Indication of maintenance mode MAN or AUT AUT detection of detector calibration mode using this function yellow blinking LED light on the MX 15 MAN no detection of detector calibration mode Time delay in minutes and seconds upon exiting the Calibration menu blocking the rela
16. lays proper triggering of attached loop connections and proper functioning of the buzzer and the indicators on the faceplate by injecting gas into the detector for authorized trained personnel because they may compromise f Caution the adjustment operations in this paragraph are reserved detection reliability Servicing frequency Gas detectors are safety devices Accordingly Oldham recommends regular testing of fixed gas detection installations This type of test consists of injecting a standard gas of sufficient concentration into the sensor to set off the pre adjusted alarms This test does not in any case replace a full calibration of the detector Frequency of gas testing depends on the industrial application in which the sensors are used Inspection should occur frequently during the months following installation start up later it may be spaced out if no significant problem is observed If a detector does not react upon contact with gas it must be calibrated The frequency of calibration will depend on tests humidity temperature dust etc calibration should occur at least once every year We also recommend calibrating the detector after exposure to high gas concentrations The site manager is responsible for implementing the safety procedures on his site OLDHAM is not responsible for implementing safety procedures 5 Cleaning servicing and maintenance 19 Fuse replacement Replacement of the fuses
17. m Remote acknowledgment for 2 MX 15 short circuit terminals using a dry and voltage free exterior contact 2 meters maximum Measurements and ranges Measurement continuous Measurement ranges programmable Display Position on the front Type a liquid crystal display LCD a 4 digits of 7 segments each 3 characters of 14 segments each icons a 4 LEDs start AL1 AL2 fault Device and gas settings Keypad programmable by the user in a list Three 3 characters which the user can edit buttons for menu access indicators and acknowledgment 10 Technical specifications 23 Alarms Type a 2 independent thresholds defined by the user manual or automatic clearing for increasing or decreasing values as programmed a visualization with red indicator output relays alarms 1 and 2 Relay 2 independent alarm relays energized or de energized programmable by the manufacturer a 1 relay with energized disturbance open or closed contact configurable for all the relays using a switch Breaking capacity 2A 250 VAC 30 volts DC LED 4 electroluminescent diodes Integrated audible alarm buzzer Sensors 1 OLC 10 combustible gas detector or 2 OLC 10 TWIN detectors for the detection of methane butane propane in boiler rooms and LPG CNG or H2 in parking lots 1 OLCT 10 combustible gas detector for
18. nectors a A front plate Figure 1 ref D with sector status and alarm indicators A LCD screen B and touch keys ref C A B c D E Figure 1 Full view of the MX 15 controller 2 General Introduction 3 View Internal Thin e Figure 2 Internal view Ref Function See page A Programming circuit Explo 340 mA or 4 20 mA 9 B F8 Fuse 5x20 250 V AC 630 mA T with 24V DC power supply 9 C F7 Fuse 5x20 250 V AC 100 mA T with 230 VAC power supply 8 D Secondary ground connection E Sector power supply terminal 230 V AC or 110 V AC upon request with 8 the following identifications L phase N neutral and ground F Power terminal block 24 V DC 0 24V 8 G Terminal block connection with remote acknowledgment dry contact 8 NO H Terminal block detector connection 9 J Sensitivity settings 16 17 K Zero adjustment 16 17 L Configuration jumper J17 for Fault relay 9 NC Fault relay contact closed in alarm mode NO Fault relay contact open when not in alarm mode M Configuration jumper J19 for RL1 relay 9 NC RL7 relay contact closed in alarm mode NO RL1 relay contact open when not in alarm mode N Fault relay terminal block Contacts CT 250 V AC 2A Contact status 9 not in alarm mode as defined by J17 ref L P RL1 alarm relay terminal block Contacts CT 250 V AC 2A Contact 9 statu
19. p the measurement 16 MX 15 Instruction Manual Replace the settings access hatch Procedure for a 4 20 mA transmitter The procedure to follow when the MX 15 controller is connected to a 4 20 mA transmitter without a local maintenance device calibration switch etc Ensure the TEST has been confirmed in order to block the controller level relays see the TEST Menu TST paragraph on page 16 Adjust the settings on the transmitter For instructions on how to do this refer to the manual for the product in use Confirm the connection between the transmitter indicators zero and sensitivity and the controller indicators If necessary adjust the controller settings For instructions see the paragraph above Once the calibration has been completed wait for the value indicated on the controller display to return to zero Press the TEST button A to exit this menu The yellow LED will turn off and the display will show a dotted line If necessary press one of the or amp or buttons to bring up the measurement 4 Operating instructions 17 18 MX 15 Instruction Manual Chapter5 Cleaning servicing and maintenance Cleaning Do not use alcohol or ammonia based liquids to clean the central controller If necessary clean the exterior of the enclosure with a damp cloth Maintenance and servicing We strongly recommend that the user periodically inspect the proper triggering of alarm and fault re
20. pment installation site Refer to the provisions of European ATEX Directive 1999 92 EC concerning the improvement of safety protection and the health of workers exposed to the risks of explosive atmospheres Specifications for mechanical and electrical installations in Explosive Zones All installations must be in compliance with currently enforced standards notably standards EN 60079 14 and EN 60079 17 The MX 15 controller must not be subject to intense mechanical vibration and must be installed in a safe area away from explosive atmospheres It is very important to refer to the user and start up manuals for the gas detectors being used Metrological specifications The controller conforms to European metrological standards EN 61779 1 and EN 61779 4 for methane calibration gas butane propane and hydrogen gasses which follow response curves where the controller is used with Oldham gas detectors as stated in the EC Declaration of Conformity Chapter 6 Where the controller is used with other types of detectors delivering a current of 4 20 mA they must conform to ATEX Directive 94 9 EC Annex Il paragraph 1 5 and be compatible with the characteristics described therein refer to the controller transfer curve in Figure 9 Note the vibration tests described in EN 61779 4 paragraph 4 13 were not performed and therefore are not applicable for the operating conditions for the MX 15 controller 8 Particular specifications
21. resistance characteristics a Maximum current available between terminals 2 and 3 300 mA under 20 V a Maximum voltage without load between terminals 2 and 3 30 V a Resistance between terminals 1 and 2 47 ohm Markings OLDHAM Arras CE PET OSA 05ATEX0120 26 MX 15 Instruction Manual 27 AE OLDHAM The Fixed Gas Detection Experts EUROPEAN PLANT AND OFFICES ZI Est rue Orfila CS 20417 62027 Arras Cedex FRANCE T l 33 0 3 21 60 80 80 Fax 33 0 3 21 60 80 00 Website http www oldhamgas com AMERICAS ASIA PACIFIC EUROPE Tel 1 713 559 9280 Tel 86 21 3127 6373 Tel 33 321 608 080 Fax 1 281 292 2860 Fax 86 21 3127 6365 Fax 33 321 608 000 americas oldhamgas com sales oldhamgas com info oldhamgas com
22. s not in alarm mode as defined by J19 ref M Q RL2 alarm relay terminal block Contacts CT 250 V AC 2A Contact 9 status not in alarm mode as defined by J18 ref R R Configuration jumper J18 for RL2 relay 9 NC RL2 relay contact closed in alarm mode NO RL2 relay contact open when not in alarm mode 4 MX 15 Instruction Manual View Rear Figure 3 Rear view Ref Function See page A Mounting rail DIN format B Fixing the enclosure to the rail C Stop for removal of the enclosure pull downward to release 2 General Introduction 5 6 MX 15 Instruction Manual Chapter 3 Installation and wiring Mounting the controller The MX 15 should be mounted on a DIN rail see Figure 3 with 5 cm of free space on every side of the controller The MX 15 controller may be installed in any area except for explosive atmospheres ideally in a monitored area security office control room equipment room etc in a dry no condensation and temperate area see page 23 The unit s access panel should be forward facing so that settings monitoring and wiring can be easily accessed 134 157 Figure 4 Dimensions of the controller Wiring f Also refer to the Particular Specifications chapter on page 25 The controller meets Class II surge protection and Degree 2 pollution requirements The electrical connection must a Be carried out by a specialist and with th
23. w LED will blink The yellow LED blinks the message TST and the key VA will appear confirming that the alarm relays are blocked during test operations or calibration Caution this menu should only be used for calibration after the first start up Reminder for safety reasons only trained personnel are authorized to perform the procedures listed below Procedure for an explosive gas detector OLC 10 OLC 100 etc a Ensure the TEST menu is confirmed see above a Remove the access panel to the settings on the MX 15 faceplate to access the setting potentiometers Adjust the zero setting if necessary using the zero 0 potentiometer Figure 2 ref K Read the instructions indicated on the display Reminder ensure that the air in the environment is clean If not using the calibration kit inject reconstituted air do not use nitrogen into the detector at a rate of 60 litres per hour then wait for the stabilization measurement a Inject the calibration gas 60 l h at sensor level and wait for stabilization measurement Confirm the value on the display and adjust the sensitivity using the S potentiometer Figure 2 ref J Remove the tank of calibration gas a Wait for the display measurement to return to zero a Press the TEST button e to exit this menu a The yellow LED will turn off and the display will show a dotted line f necessary press one of the or x or buttons to bring u
24. ys Validation of the settings changed in this menu NO changes have not been implemented YES new programming will be saved Initialization Menu INI Start up This menu is used to start up the microprocessor It is used in the following situations a By Oldham when shipping new material a At the initial installation a When changing a sensor or a detector Code Menu access This menu allows the user to modify the access code set as 1000 when shipped for the different menus Display the CODE menu press the and and amp buttons at the same time a Confirm the code by pressing ENTER The current code will be displayed Enter the new code with the and and amp buttons Confirm the new code by pressing ENTER E Confirm the code Yes No ENTER 4 Operating instructions 15 Buzzer Menu Allows the user to use or not use the buzzer integrated into the MX 75 unit a Display the BUZZER menu by pressing on the and m and amp buttons at the same time a Confirm by pressing ENTER ED Select ON buzzer activated or OFF buzzer deactivated a Confirm Yes No ENTER TEST Menu TST Allows the user to block the relays integrated into the MX 15 when performing gas tests or calibrating the detector a Display the TST menu by pressing on the and and lt buttons at the same time a Confirm by pressing ENTER D the yello
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