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9

– Cleaning and maintenance 

47 

 

 

 

Chapter 9 

│Cleaning and maintenance 

Cleaning 

Do not use alcohol- or ammonia-based liquids to clean the controller. If 
necessary, clean the exterior of the enclosure with a damp cloth. 

Fuse replacement 

 

Fuse replacement should only be performed by qualified 
personnel and power must be first switched off. 

 

Fuses shall comply with IEC 60127 standard (time-delay fuse, low breaking 
capacity, 250Vac). Please see Chapter 8. 

Replacement of the lithium battery 

Lithium battery replacement should only be performed by qualified personnel 
and with an identical battery (see Chapter 8 for the list of spare parts). The 
controller must be first switched off. Power on the controller once the battery 
has been replaced. 

 

 

Oldham does not allow any other repairs than those listed here 
above. 

 

 

Burn hazard. As the temperature inside the controller can reach 
70°C (158 °F), it should be allowed to cool after aperture. 

 

 

 

Summary of Contents for MX 32

Page 1: ...User Manual MX 32v2 Analog and Digital Controller Part Number NP32V2EN Revision C 0 The Fixed Gas Detection Experts...

Page 2: ...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...

Page 3: ...32 Software 6 Chapter 3 Mechanical Installation 7 MX 32 Controller 7 Gas detectors 8 Digital Modules 8 Chapter 4 The MX 32 Controller 9 Overview of the Unit 9 Front Plate 12 Alarm Thresholds and Rela...

Page 4: ...lacement of the lithium battery 47 Chapter 10 Certificate of Compliance 49 Chapter 11 Technical Specifications 51 MX 32 Controller 51 Relay Module 53 16 Logic Input Module 53 8 Analog Input Module 54...

Page 5: ...e reading of this manual In spite of our efforts to produce an error free manual it may nonetheless contain some unintentional technical inaccuracies In the client s interest Oldham reserves the right...

Page 6: ...us consequences on the safety of persons Please be extremely rigorous as regards electricity and assembly coupling network connections Cables with an operating temperature of 70 C minimum 158 F must b...

Page 7: ...1 or 2 lines different modules analog or digital detectors logic inputs analog inputs relay outputs and analog outputs The MX 32 instantly handles the measurements of detectors and input modules As s...

Page 8: ...rs as well as digital modules MX 32 Configuring PC with the COM 32 application Digital detectors 2 logic inputs Analog recorders Four 4 20mA Analog Output Module 8 Relay Output Module Logic Input Modu...

Page 9: ...On each line it is possible to connect 4 20mA analog detectors or digital addressable modules Maximum Capacity Version Detectors Analog Input Modules Relay Output Modules Logic Input Modules Analog Ou...

Page 10: ...rst two digits in this case 17 correspond to the year of manufacture in this case 2017 7 Variant 1 or 2 lines to work with 4 20mA analog detector or Oldham digital detector or 2 channels to work with...

Page 11: ...y dust and temperature variations It shall preferably be located in a monitored environment for instance guardhouse control room or instrument room etc Attachment of the wall enclosure Access to the c...

Page 12: ...operators The detectors must not be obstructed by anything that will prevent them from measuring the ambient environment to be checked Digital Modules For cabling and electrical information see paragr...

Page 13: ...it graphic LCD display F Toggle Latch one is lockable B Zone 1 status indicator G Power On Off indicator C Zone 2 status indicator H Failure maintenance indicator D Integrated siren option J Contextua...

Page 14: ...ort C On board additional flashlight option D Programming or mode selector 0 MX 32 in normal operation 1 Read Write configuration program 2 MX 32 firmware update via a PC Once the unit configuration o...

Page 15: ...ime per sec Off Communication failure Absence or failure of one module On communication failure the internal buzzer the failure indicator and the Fault relay are activated Off Off No active module is...

Page 16: ...to activate the relay Depending on user s programmation a FAUT event can be treated as an alarm event S Relays status DEL indicator Illuminated when the corresponding relay coil is ON T 4 Amp fuse pr...

Page 17: ...cordance with the program In parallel the display indicates OVS acknowledgement must be done manually and is only possible if the current value drops below the programmed value Management of Non Ambig...

Page 18: ...s modules of the zone Off All detectors of the corresponding zone have been turned off Solid At least one detector of the corresponding zone is communicating Blinking Detailed information of one detec...

Page 19: ...al operation mode so it does switch over in the event of a power supply failure The internal buzzer is activated on the appearance of any event failure or alarm The sound differs depending on the even...

Page 20: ...must be reset by the operator Alarm management relays visual indicators buzzer is as follows Event Display Alarm Relay normal mode Alarm Relay buzzer mode Alarm LED Internal buzzer Alarm Appearance A...

Page 21: ...used with the single line version and up to 10 modules can be used with the 2 line models The MX 32 in bridge version is not compatible with any modules see Table 1 The following table lists the avail...

Page 22: ...t module No bare wire should remain apparent For protection against electromagnetic interference the shield or braid should be cut as short as possible and necessarily connected Figure 11 Connection o...

Page 23: ...0 Table 5 Addressing table address depends on the position of the switches Remarks The physical address of a module 1 to 32 max must be identical to the registered address via COM 32 software configur...

Page 24: ...g table Term Symbol Slave number Num ro esclave See details in the paragraph Module Address on page 18 Frame filling Remplissage de trame Factory settings Do not modify Delay Temporisation Factory set...

Page 25: ...elays are Reset Inhibit minimum time of activation adjustable from 0 to 900 seconds Automatic reset If activated the time is adjustable between 15 and 900 seconds beyond which the relay is automatical...

Page 26: ...C Logic inputs 1 to 16 Figure 17 16 Logic Input Module A DIP switches These DIP switches are set according to the following table Term Symbol Slave number Num ro esclave See details in the paragraph M...

Page 27: ...8 8 Analog Input Module Introduction Ref Description Figure 19 8 Analog Input Module A Configuration jumper 4 20mA or Wheatstone bridge B Span settings C Zero settings D Channel Offset E Bridge sensor...

Page 28: ...the Analog Input Module Connection Refer to Chapter 6 on page 27 Configuration Configured via the COM 32 application Note related to manual calibration of the detectors connected to an 8 analog input...

Page 29: ...outputs F F1 to F4 current output settings Press D and set to 20mA Figure 21 4 Analog Output Module A Logic input connectors Each of these two terminals Figure 21 may be connected to a voltage free co...

Page 30: ...26 MX 32v2 User Manual...

Page 31: ...be used in the end application and shall be according to local rules standards for MX 32 product Cables with an operating temperature of 70 C minimum 158 F must be used because the temperature inside...

Page 32: ...ply with the class of protection it is absolutely necessary to connect the ground terminal to the Earth of the site Figure 24 A Moreover the cable braids of the digital and analog lines shall also be...

Page 33: ...e gas detector to a Wheatstone type MX 32 Internal alarm relays The MX 32 has 5 internal relays Output Function R1 Programmable Alarm Relay R2 Programmable Alarm Relay R3 Programmable Alarm Relay R4 P...

Page 34: ...32 application and can be set as energized or de energized Remote Acknowledgement Connector If necessary connect the ACQUIT dry contact relay NC terminal to a remote acknowledgement system Figure 28...

Page 35: ...nnection of the 8 analog input modules with 4 20mA detector Figure 32 connection of the 8 analog input module with Wheatstone Bridge detector If this module is the last of the line do not forget to se...

Page 36: ...If this module is the last of the line do not forget to set the switch marked EOL Resistor FDL resistance to the ON position Positioned contact Positioned contacts To the next module To MX 32 or the p...

Page 37: ...page 35 See page 36 See page 36 4 MAINTENANCE 5 INFORMATION See page 40 See page 41 Figure 34 General menu tree of the MX 32 Navigation Key Functions Key Function Vertical displacement in the selected...

Page 38: ...Next detector Display of measurements of next detector scanning of all the detectors on all the lines Menu Display of main menu See paragraph Main menu on page 35 See 4 Detectors Display of a group o...

Page 39: ...controller is protected by two access codes both set at 1000 by default upon leaving the factory You can change the passwords in this menu via COM 32 The passwords are required each time you enter one...

Page 40: ...2 3 Alarm settings Allows for the modification of detector alarms previously programmed via COM 32 4 Port RS485 Configuration of Port RS485 speed parity stop bits slave number This configuration is on...

Page 41: ...the Select detectors screen 2 Start Recording Yes Launches the recording of calibration measurements for the selected detectors From this moment onwards all the calibration measurements are recorded...

Page 42: ...zero 5 The term Sens for sensitivity is active from now on If sensitivity is not to be calibrated press and END until you see the message Do you only want to calibrate zero for the detector then pres...

Page 43: ...tector Selection 1 Select the detector s to be rebooted with the help of the Previous detector and Next detector keys and press Select Initialization of the Detector 1 Press Escape to reset the select...

Page 44: ...account of inputs detectors logic inputs The simulation measurements status are initialized to the current measurement status values The relays the internal buzzer and the analog outputs remain in the...

Page 45: ...pages of the file Message Significance AL1 Detector in level 1 alarm AL2 Detector in level 2 alarm AL3 Detector in level 3 alarm OVS Detector in OVS alarm AL1 M Detector in alarm set to level 1 mean v...

Page 46: ...orized Beyond that the most recent event deletes the oldest Previous page Next page and Last page allow access to the corresponding pages of the file each page can display a maximum of 8 lines Message...

Page 47: ...em troubles records This displays the events relative to MX 32 operation power failure fluctuation On Off etc Previous page Next page and Last page allow access to the corresponding pages of the file...

Page 48: ...44 MX 32v2 User Manual...

Page 49: ...6 314 208 Blue flash and buzzer kit 6 314 209 RS485 commnication board 6 451 680 MX32 A B C D E F 0 1 Version Power supply Language Stobe and Audible alarm combination RS 485 serial output Com 32 soft...

Page 50: ...upply 6 314 210 Fuse F7 4A time delay 8 4A for 120 seconds 250Vac 6 154 738 CR2032 lithium battery 6 111 321 340 mA programming strip 8 maximum per analog input module see Figure 19 6 353 442 4 20 mA...

Page 51: ...C 60127 standard time delay fuse low breaking capacity 250Vac Please see Chapter 8 Replacement of the lithium battery Lithium battery replacement should only be performed by qualified personnel and wi...

Page 52: ...48 MX 32v2 User Manual...

Page 53: ...10 Certificate of Compliance 49 Chapter 10 Certificate of Compliance The document hereafter 1 page reproduces the EC declaration of conformity...

Page 54: ...50 MX 32v2 User Manual...

Page 55: ...oft touch key Alarms Limits Parameter setting by COM 32 application Indicators 6 status LEDs per line high and low range excess Alarm 3 Alarm 2 Alarm 1 failure Internal relay 4 fully programmable rela...

Page 56: ...o 61010 1 12 UL Std No 61010 1 3rd Edition Measurement Lines Digital lines 2 maximum RS485 Modbus 9600 Bauds 4 wire serial cable 2 shielded twisted pairs 1 for the line and 1 for communication Analog...

Page 57: ...DIP switches Setting of relay parameters by COM 32 application Nominal load of contacts 2A 250Vac 30Vdc Consumption 3 5 mA in normal operation Terminals Screw terminals Can accept 2 5 mm 14AWG wire Re...

Page 58: ...60 mm 4 Analog Output Module Function Function Generation of 1 to 4 analog values Capacity 4 4 20mA discrete opto isolated outputs recopy detector minimum maximum or average of a detector group Resis...

Page 59: ...tion A Operating LEDs The Rx LED lights up when a data thread is received The Tx LED indicates that the card has power and turns off when data is being transmitted out B Connection terminal A Tx or RS...

Page 60: ...sensor read register number 52 All of the information at addresses 1 to 52 will be accessed The 52nd word corresponds to the expected value Example Access instantaneous alarm 1 for the sensor located...

Page 61: ...Operating type 03 read 03 0x03 Address of the 1st word 2300 57 0x09FD Number of words to read 01 0x0001 CRC Thread 0x01 0x03 0x09 0xFD 0x00 0x01 0xCRC 0xCRC Address Table Supervision of the MX 32 sen...

Page 62: ...258 in order to download the configuration of each sensor into the internal memory As a result of the operating functionality it is only possible to repatriate the data of a single sensor for interro...

Page 63: ...ou s alarm threshold 3 2 Value 999 to 9999 real value to be multiplied like the range 55 Average alarm threshold 1 2 Value 999 to 9999 real value to be multiplied like the range 56 Average alarm thres...

Page 64: ...nowl When the Verification is at 1 the Verification alarm once activated is deactivated by stopping the sensor If the acknowledgment is manual alarms 1 2 or 3 once activated are deactivated using the...

Page 65: ...ble of activated alarms 2 Table with 66 signed integers of 16 bits where the alarms bits are listed at their address ALARM_1 bit 0 ALARM_2 bit 1 ALARM_3 bit 2 UNDERSCALE bit 3 OVERSCALE bit 4 AL_DEFAU...

Page 66: ...62 MX 32v2 User Manual...

Page 67: ...ernal fault relay opens to indicate a fault status see Figure 8 Internal view 2 line version on top and Bridge version at the bottom Y The fault relay switches over one of the following events Interna...

Page 68: ...n the following page In addition the controller must provide sufficient supply voltage taking into account voltage drops in the cable Highest alarm set point for flammable gases shall not exceed 60 LE...

Page 69: ...ller status depending on the detector analog signal output In the event the user connects a non Oldham brand detector to the MX 32 controller the user must ensure that the detector is compatible with...

Page 70: ...66 MX 32v2 User Manual...

Page 71: ...13 Functionnal Safety 67...

Page 72: ...Cedex FRANCE T l 33 0 3 21 60 80 80 Fax 33 0 3 21 60 80 00 Website https gasdetection 3M com AMERICAS Tel 1 713 559 9280 Fax 1 281 292 2860 americas oldhamgas com ASIA PACIFIC Tel 86 21 3127 6373 Fax...

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