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Oldham MX48, Commissioning, Operating And Maintenance Manual

The Oldham MX48 Commissioning, Operating and Maintenance Manual provides detailed instructions for proper installation, operation, and maintenance of the MX48 model. This essential manual can be downloaded for free from manualshive.com, ensuring that users have the information they need to effectively utilize their MX48 product.

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Summary of Contents for MX48

Page 1: ...C CO OM MM M I IS SS SI IO ON N I IN NG G O OP PE ER RA AT TI IN NG G A AN ND D M M A AI IN NT TE EN NA AN NC CE E M M A AN NU UA AL L...

Page 2: ...ON STACK GAS AND DUST MONITORING We thank you for choosing an OLDHAM SA instrument We have taken every step to ensure that this equipment continues to give you complete satisfaction Please read the in...

Page 3: ...A U U S S E E S S Sketches drawings specifications and data included herein contain confidential information which is the property of OLDHAM SA These information shall not be in part or in whole phys...

Page 4: ...ng wires for shielded cable 12 2 3 5 FLAME detectors 2 3 or 4 connecting wires for shielded cable depending on utilization 12 2 3 6 CO2 detector of type Ventostat VT 14 2 3 7 Specific case of intrinsi...

Page 5: ...etailed flow diagrams of each menu 32 5 SETTING THE MX48 UNIT INTO SERVICE 45 5 1 Programming the unit 45 5 2 Programming the measuring channels 45 5 2 1 Programming 45 5 2 2 Copy 46 5 3 Calibrations...

Page 6: ...he measurement that is output from the detector is displayed on the MX48 unit and compared with alarm thresholds If thresholds are exceeded the unit actuates relays which can be used to control extern...

Page 7: ...g or falling thresholds manual or automatic clearing with extractor control logic tunnel parking application One rising or falling threshold automatic clearing triggering by time delay or average Rela...

Page 8: ...E D ENSEMBLE DU MX48 carter ouvert Figure N 2 voir fig N 4 voir fig N 3 voir fig N 7 voir fig N 7 voir fig N 1 Transformateur Coffret MX48 15 presses toupes PG9 Carte afficheur Carte alimentation 2 v...

Page 9: ...T circuit see Figures 3 rep A 2 2 Electrical connections of the MX48 Unit Fig 8 The MX48 unit is equipped with a pulse automatic device which enables to connect 24 V DC voltage in a lack of 220 V AC v...

Page 10: ...ne end only CAUTION Each channel is configured in the factory for a given type of detector explosive gas toxic gas fire or flame If two different types of detector are interchanged this may result in...

Page 11: ...of type EC 11 sensitive to temperature variations 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 ma...

Page 12: ...IR radiation These detectors are equipped with various types of terminal block see table below Model 20 20 U 20 20 UC 20 20 UB 20 20 LC 20 20 UNC 20 20 LBC 20 20 I Type of terminal block B C A C C C A...

Page 13: ...ohms maximum per wire i e 24 ohms in loop 4 20 mA output maximum load 280 ohms whole loop 2 3 7 Specific case of intrinsic safety detectors Two types of intrinsic safety barrier can be used Z787 EX an...

Page 14: ...5 clippers 6797547 For 12 clippers 6797101 2 3 8 Other detectors with standardized current output Any detector with 2 wires or 3 wires that can be supplied with power between 19 V DC and 32 V DC and...

Page 15: ...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 8channels fig...

Page 16: ...ENANCE mode I 2 mA ZERO 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 2 4 3 RS 232 and RS 485 out...

Page 17: ...5V J104 programming pins a with RS 485 shielded no programmed polarization resistor for moins GND J103 programming pins b without RS485 shielded programmed polarization resistor for moins GND J103 pro...

Page 18: ...tails and possibilities in a leaflet ref 8 813 571 2 4 4 Remote acknowledgement It is possible to allow remote acknowledgement by connecting on terminals clear 1 and clear 2 loop 16 mA of the connecto...

Page 19: ...itching on the unit CAUTION The handling operations and adjustments described in these paragraphs are strictly reserved for authorized personnel as they are liable to affect detection safety To start...

Page 20: ...ng to the programming of the unit if an alarm threshold is exceeded 3 3 2 Light emitting diodes LED Fig 1 and fig 4 Each channel is equipped with five LEDs visible and identified on the FRONT panel LE...

Page 21: ...h manual clearing block diagram 1 in normal cycle with automatic clearing block diagram 2 in parking cycle block diagram 3 The alarm thresholds are to be selected according to the gases detected and t...

Page 22: ...inguished Relay disengaged Buzzer stopped No Illumination of flashing alarm LED After T2 time START Threshold exceeded Time T1 exceeded Illumination of flashing alarm LED LED steady mode Buzzer stoppe...

Page 23: ...M 2 NORMAL CYCLE WITH AUTOMATIC CLEARING START Threshold exceeded Time T1 exceeded LED extinguished Relay disengaged Alarm LED illuminated in steady mode After T2 time Relay engaged Buzzer engaged END...

Page 24: ...um operating time for each relay t AL1 tR1 R2 t AL2 Threshold AL2 Threshold AL1 Starting of relay R1 Stopping of relay R1 Starting of relay R2 Stopping of relay R2 min tAL1 Min operating time for alar...

Page 25: ...iate results Display SUP The relays are actuated if the thresholds are reached The general fault relay is actuated The 4 20 mA output of the channel is greater than 20 mA All these states are memorize...

Page 26: ...r 10 seconds The user can interrogate a channel manually by selecting that channel with the and keys to obtain a manual display for one minute The user can return to normal cyclic scanning during that...

Page 27: ...g and swivelling the FRONT panel for maintenance Fig 4 rep B NORMAL MODE Manual display of previous channel Combined with the PLUS key to restart the channels automatic display cycle MAINTENANCE MODE...

Page 28: ...enus To scroll through a menu CALIBRATION key Fig 4 item C accessible after opening and swivelling the front panel To set a channel to CALIBRATION mode To quit that mode 4 1 3 Potentiometers Each meas...

Page 29: ...20 mA current output To trigger the alarms LED and relays at the same time CHANNEL COPY programming To copy the complete programming from one channel to another time saving UNIT programming To program...

Page 30: ...ROLLING OF THE VARIOUS MENUS NORMAL DISPLAY P Programming Channel x x Programming Simulation Programming Channel xx copy Programming Unit Programming Uploading REMINDER P Programming key Keys used to...

Page 31: ...Off On then ENTER CHOICE OF RANGES 10 30 100 300 1000 2000 xxxxU then ENTER SELECTION OF POINT POSITIONING 100 10 0 1 00 0 100 0 010 0 001 then ENTER 0 to 2000 then ENTER 0 to 2000 then ENTER Seuil A...

Page 32: ...creasing Decreasing then ENTER Increasing Decreasing then ENTER Increasing Decreasing then ENTER Normal Parking then ENTER Cycle Normal P Alarm 2 Increasing Alarm 3 threshold 75 Alarm 1 Increasing Ala...

Page 33: ...Manual Automatic then ENTER Manual Automatic then ENTER Time delay Mean then ENTER Negative Positive then ENTER Alarm 3 Time delay Ack alarm 1 Manual Ack alarm 2 Manual Relay 1 safety Negative P P P...

Page 34: ...TER Free Set to 0 Set to 1 then ENTER Free Set to 0 Set to 1 then ENTER Free Set to 0 Set to 1 then ENTER Free Set to 0 Set to 1 then ENTER Relai 2 Free Relay 2 safety Negative Relay 1 Free Relay 3 Fr...

Page 35: ...this area then ENTER CH4 CO 2S etc then ENTER LEL ppm etc then ENTER Time Time interval between the triggering of the AL LED and of the corresponding relay or the minimum operating time of the relay...

Page 36: ...ing the down key Parameters specified in square brackets are the VALID parameters in memory 1 Free This means that the relay can be activated when programming alarm thresholds are triggered Set to 0 T...

Page 37: ...lion ppb parts per billion UEG Unter Explosion Grenze LEL in German LEL Limite inf rieure d explosivit LEL in French bar unit of pressure mb unit of pressure millibar Rh relative humidity m s metres p...

Page 38: ...Phosphine HF Hydrofluoric acid CFC Freons CO2 Carbon dioxide ASH Arsine SiH4 Silane BUT Butane PRO Propane GNT Natural gas ETY Ethylene PNT Pentane HEX Hexane PRY Propylene ACY Acetylene ETA Ethanol...

Page 39: ...hat this channel is in simulation mode To artificially vary measurement on the display panel on the 4 20 mA output and trigger alarms LED and relays ESCAPE ECHAPPE To exit from this menu and return to...

Page 40: ...o be copied Copy the channel s configuration to another channel xx indication of Other channel number using keys Validation of copy Programming Copy channel xx NORMAL DISPLAY P P Copy channel Channel...

Page 41: ...sh German Spanish then ENTER Choice of transmission speed with computer 120024004800960019200Bauds then ENTER Choice of slave address this unit 0 to 250 then ENTER NORMAL DISPLAY P P Programming Unit...

Page 42: ...ny triggering of buzzer NO YES then ENTER Utilization of common audio alarm buzzer Function in series with buzzer jumper NO YES then ENTER YES If copy of buzzer on alarm 3 and with buzzer option into...

Page 43: ...his operation Display of menu Validation of utilization of menu Display of menu confirmation Data transfer request Validation of data transfers Confirmation of uploading Programming Uploading P END OF...

Page 44: ...ations the Unit programming menu must be used see Section IV 2 on Menus by means of the keypad and the Programming key Then the instructions in the menu should simply be followed CAUTION If the unit r...

Page 45: ...o is set with natural diffusion in pure air the surrounding atmosphere must be calm wind speed of less than 1 m s REMARK The authorized wind speed is increased to 4 1 m s when the detector is fitted w...

Page 46: ...nthetic air zero adjustment When the measurement has stabilized set the value corresponding to the reference gas concentration on the display panel of the MX48 unit by adjusting the sensitivity potent...

Page 47: ...0 mA potentiometers and to the terminals used to check its 4 20 mA output current With these types of detector there are two ways of checking the current supplied to the unit o by direct reading on th...

Page 48: ...ng channel sensitivity potentiometer Fig 5 Stop the injection of the standard gas wait for the measurement to return to zero on the MX48 display panel Then press the CALIBRATION key item C Fig 4 The f...

Page 49: ...display panel the triggering of alarms LED and relays the slaving controls and the 4 20 mA current output Cause a fault to occur such as a line fault by disconnecting a detector wire to check the corr...

Page 50: ...lown Replace the 24 V DC fuses located at the back of the MX48 unit item B Fig 5 24 V DC internal protection fuse blown Replace the 24 V DC fuse located on the power board item C Fig 5 CAUTION When re...

Page 51: ...y using the Unit programming menu buzzer connected An alarm is triggered the LED lights up and the relay is actuated but there is no audio alarm The buzzer strap is not correctly positioned Fall the b...

Page 52: ...e Channel programming menu self calibration and choose CAL detection YES Impossible to upload data from the MX48 to a computer Faulty electric connections Check the connections on the MX48 unit connec...

Page 53: ...ed 6154700 Fuse 125 mA time delayed 6154701 Power board relay DC 6155745 Common alarm relay 6155752 AC mains relay 110 V AC 6155761 Measuring channel alarm relay 6155752 Channel actuating relay 615574...

Page 54: ...to 95 humidity no condensation Protection IP 65 Weight 11 kgs ILLUMINATED INDICATIONS Fluorescent display panel 2 lines of 16 characters 40 light emitting diodes power on gas alarms faults POWER SUPP...

Page 55: ...or audio alarm transfer 1 common fault relay SIGNAL OUTPUTS 4 20 mA analog per channel maximum load resistance 600 Serial RS 485 232 J BUS common MISCELLANEOUS OUTPUTS Alarm remote acknowledgement STA...

Page 56: ...57 8 8...

Page 57: ...58 80 5 89 500 3 2 10 102 5 10 387 5 223 5 5 27 5 445 27 5 1 2 6 7 PLAN ENCOMBREMENT MX48 Figure N 1 MX48 DIMENSIONAL PLAN FIGURE 1...

Page 58: ...Clavier d port Compas pour retenir le couvercle en position haute Premi re carte voie de mesure Deuxi me carte voie de mesure turn latches 2 off MX48 box see Fig N 1 Stay for holding up the cover Tran...

Page 59: ...ltre secteur Fusibles 24V Fusibles secteurs Bornier acquit et RS485 Bornier alimentation Relais alarme Relais d faut Rep B Connector for display circuit General switch reference A Transformer terminal...

Page 60: ...t eur pour carte al i m ent at i on Connect eur subD 9 poi nt s f e m e l l e RS232 rep re A Touche program m a t i on rep D Touche cal i brage rep C C l avi er pour l a m ai nt enance rep B Buzzer sw...

Page 61: ...de plots de program m ation 4 m A 20 m A If i l am ent R g l age z ro capteur R g l age sensi b i l i t capteur Programming following the type of detector used Zero detector adjustment detector sensiv...

Page 62: ...E D U C O N N E C T E U R D E L I A I S O N R S 2 3 2 R e p A Figure N 4 Broche N 1 2 TXD RS232 3 R X D R S 2 3 2 4 5 G N D 6 485 B 7 485 A 8 9 Liaison Figure N 6 Liaison N 1 N 5 N 6 N 9 Pin n Link R...

Page 63: ...de mesures Potentiom tres de r glages Capteur 125 mA Ligne 630 mA Fusibles Borniers de voie de mesure Relais d alarme de voie de mesure Rep A Connector for display card Support for programming the mea...

Page 64: ...ALIMENTATION MX48 Figure N 8 Acquit 1 Acquit 2 GND 485 A 485 B 24v 24v DEF DEF AL3 AL3 NC Secteur Secteur Clear 1 Clear 2 GND 485 A 485 B Mains Mains NC AL3 AL3 DEF DEF 24 v 24 v ELECTRICAL CONNECTION...

Page 65: ...AGE DU 4 20 mA SUR LA VOIE 2 A M P E R E M E T R E m A Voie 1 Voie 2 Voie 3 Voie 4 Voie 1 Voie 2 Voie 3 Voie 4 1 2 3 6 7 8 9 4 m A 2 0 m A Channel 1 Chan 2 Chan 3 Chan 4 Channel 1 Channel 2 Channel 4...

Page 66: ...S U R E E x e m p l e s d e c o n n e x i o n s d e c a p t e u r s e t d e c a p t e u r s 4 2 0 m A 3 F i g u r e N 1 0 Pont explosimetric detectors Example 1 3 wire 4 20 mA detectors Example 2 MX48...

Page 67: ...DE MESURE MX48 Figure N 11 3 1 3 1 Exemple 1 Exemple 2 ATTENTION a la configuration de la voie de mesure EXAMPLES OF CONNECTION OF 2 WIRE 4 20 mA DETECTORS AND FIRE DETECTORS ON THE MX48 MEASUREMENT C...

Page 68: ...2 1 signal 2 moins 3 plus 4 5 6 7 8 9 Capteur Sortie 4 20 mA Contact REL AL1 Contact REL AL2 1 2 3 4 5 6 7 8 9 minus signal plus detector 4 20 mA current output Contact REL AL1 Contact REL AL2 DETAILS...

Page 69: ...entre 2 et 3 MX48 B R A N C H E M E N T D U N C A P T E U R F L A M M E E Q U I P E D U N B O R N I E R T Y P E A S U R L E M X 4 8 Figure N 13 MX48 terminal block See figure 12 Cable 3xn shielded 6...

Page 70: ...tre 2 et 3 MX48 B R A N C H E M E N T D U N C A P T E U R F L A M M E E Q U I P E D U N B O R N I E R T Y P E B S U R L E M X 4 8 F igure N 14 Detector terminal block Type B MX48 terminal block See fi...

Page 71: ...DETECTOR EQUIPPED WITH TERMINAL BLOCK OF TYPE C FIGURE 15 MX48 terminal block See figure 12 Detector terminal block Type C Cable 3xn shielded 6 max in loop between 2 and 3 MX48 units R 1 2 3 1 2 4 5...

Page 72: ...4 2 0 m A F O U R N I P A R U N C A P T E U R F L A M M E U V I R o u I R 3 E Q U I P E D U N B O R N I E R D E T Y P E A o u C Figure N 16 Detector terminal block Type A or C MX48 terminal block See...

Page 73: ...D I F E R E M M E N T D E C O N N E C T E U R A O U E T A L I M E N T A T E S P A R U N E A L IM E N T A T I O N D C Bornier de voie de me s ur e du MX 48 voir fig 12 Fi gure N 17 Detector terminal b...

Page 74: ...capteur Type A Cable 2xm blind 250 M a x i en boucle entre 1 et 2 MX Cable 2xn blind 17 M a x i en boucle entre 1 et 2 capteurs Fi gure N 18 Bornier de voie de mesure du M X4 8 voir fig 12 Detector te...

Page 75: ...de voie de m es ur e d u MX 48 voir fig 12 B R A N C H E M E N T D U N C A P T E U R T Y P E V E N T O S T A T V T S U R L E Fi gure N 20 MX48 terminal block see figure 12 Ventostat VT terminal block...

Page 76: ...100 1 3 1 3 autres capteurs autres capteurs E X E M P L E S D E R A C C O R D E M E N T S D E C A P T E U R S A V E C D E S B A R R I E R E S D E F i gure N 21 Other detector EXAMPLES OF CONNECTION OF...

Page 77: ...res qu OLDHAM CAPTEURS 4 20 mA AUTRES QU OLDHAM aliment s par la centrale MX48 Figure N 22 Terminal block Terminal block 4 20 mA DETECTORS OTHER THAN OLDHAM MODELS Power supplied by MX48 unit FIGURE 2...

Page 78: ...GE EN PARALLELE DE 2 CAPTEURS CTX50 5 Maximum Figure N 23 1 3 V V V V V V V V Capteur TOX 1 Capteur TOX 2 EXAMPLE OF PARALLEL WIRING OF 2 DETECTORS OF CTX300 Co Parking 5 maximum FIGURE 23 Detector TO...

Page 79: ...LES CONTACTS DE RELAIS ALARMES 1 et 2 D UNE VOIE DE MESURE DE MX48 Figure N 24 E lectrovanne S ir ne 2 3 0 V A C EXAMPLE OF CONNECTION OF EXTERNAL DEVICES TO THE ALARM 1 AN 2 RELAY CONTACTS OF A MX48...

Page 80: ...EMENT D UN ENREGISTREUR A 2 ENTREES SUR LA SORTIE 4 20 mA DE 2 VOIES DE MESURE Figure N 25 ENREGISTREUR E 2 E 1 EXAMPLE OF CONNECTION OF A 2 INPUTS RECORDER TO THE 4 20 mA OUTPUT OF TWO MESURING CHANN...

Page 81: ...e during equipment start up and avoid additional costs S S T T A A R R T T U U P P Entrusting the start up of your equipment to our expert technicians gives you the guarantee of additional safety F F...

Page 82: ...ll the TRAINING REQUIRED to use our equipment and perform first level maintenance This training can cover our entire product range OLDHAM SA organizes SCHEDULED TRAINING SESSIONS 1 week at the head of...

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