USER’S GUIDE AND MAINTENANCE MANUAL
O L D H AM S A GAS AND FLAME DETECTION 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 instruction manual carefully before using the instrument.
LIMITS OF R ESPON SIBILITY * OLDHAM SA hereby rejects any and all responsibility with regard to any person for material damage, bodily injury or death resulting in whole or in part from the inappropriate use, installation or storage of its equipment not conforming to the instructions and to warnings and/or not conforming to standards and regulations in force.
C O N T E NT S I. PRESENTATION ........................................................................................7 II. COMMISSIONING INTO SERVICE ......................................................10 1. POWER SUPPLY ...........................................................................................................10 2. MEASUREMENT CELL : .............................................................................................12 3. REMOTE SAMPLING ................................
VIII. LIST OF OPTIONS ...................................................................................57 1. LIST OF PARAMETERS AND OPTIONS AVAILABLE IN THE SOFTWARE OF THE MX2000 INSTRUMENTS ........................................................57 2. IX. LIST OF ACCESSORIES...............................................................................................57 APPENDICES ............................................................................................58 1. PARAMETERS..........
I. P R E S E N T AT I O N • The MX2000 is a portable gas detector. It is one of the smallest 4-risk detectors on the market. It can be equipped with a “high-luminance” LED display or a liquid crystal display. In either case, it displays messages uncoded and in full. • It is used for the simultaneous detection of a maximum of 4 gases present in the air, by means of 4 measuring cells specific to each of the gases which are to be detected.
PRESENTATION IN DETAILS DISPLAY TOX 1 TOX 2 02 FLAM FLASHING COMMON ALARM FLASHING COMMON ALARM ON / OFF BUZZER ENTER (VALIDATION) LIGHTING DETECTION CELLS ADVANCE + SHIFTING - F i g.
MAKE-UP OF THE MX2000 The MX2000 is fitted with the following elements : 1) rear clip, 2) front panel, 3) display module, 4) explo cell (not shown), 5) electrochemical cells (toxics and oxygen), 6) cover, 7) power-supply pack, 8) main board, 9) external connectors (charging and computer connection), 10) the main housing, 11) switch keyboard, 12) buzzer, 13) gas injection cap, 14) 6 cover retaining screws. F i g.
II. C O M MI S S I O N I N G I N T O S E R V I C E 1. PO WER SU PPL Y Several types of power supply are available : - pack of four AA type alkaline batteries (R6, 1.5 V) placed in a battery holder of plastic material (fig.5) - pack of four A type or 4/5A nickel metal hydrure rechargeable batteries (1.2 V) placed in a heat-shrink sleeve (fig.4) The power-supply pack is connected to the main board by a plug-in connector. The power-supply pack cannot be changed in a hazardous area.
• The data back-up battery (fig.6) : - A dry battery (not rechargeable) is used to back-up the memory chips of historics, particularly when the instrument is switched off or when the power-supply batteries have been removed. The lifetime of the battery is 5 years. Note: The lithium battery of the MX2000 is visible when the cell cover is removed. Fig.
2. • M EA SU R EM ENT C EL L : Presentation : The cells used in the MX2000, which are a vital element of the instrument, must be treated with great care. Mechanical shocks, excessive temperatures or just the entry of water in the course of gas pumping, can be harmful to the quality of the measurement, or may even ruin the cells in extreme cases..
3. • R E M O T E S A M P L IN G Presentation The measurement or monitoring of gas concentrations prior to entering a cellar or any relatively inaccessible areas can be effected by means of a remote-sampling probe. • The systems available The systems can be equipped with a rigid or semi-rigid telescopic rod. - manual - with intake bulb - with electric pump (See fig.11 for example) Installation of the sampling system The cap (fig.9) : position the cap on the cell cover of the MX2000.
M A N U A L R E M O T E S A M P L I N G K I T W I T H R I G I D P R O B E M X2 0 0 0 N° 1 2 3 4 5 6 7 1 6 5 62 5 3 2 6 5 3 3 DESIGNATION Ø5-Ø7Cristal pipe TX12 ring CX380 filter Rigid probe MX2000 calibration cap MX21 filter adaptation 160CC pumping handle 7 2 4 FIG 11 - 14 - REF.
• Operation Pumping and measurement: With the pumping handle, it is necessary to pump at least 4 times to trigger an alarm if the gas content so requires, and 8 times to obtain a reliable measurement. Wait for the measurement to stabilise before accepting it. Measurement can be over-estimated (explosive gases) or under-estimated (oxygen) during the pumping process, due to the air movement. With electric pumping (BP2000 for example...
I I I . O P E R AT I ON 1. O P E R A T IO N O F T H E IN S T R U M E N T This is achieved by means of tactile zones located on the side of the instrument (fig.16). • - switching the instrument on and off - validation (Enter) - momentary extra-brightness of lamps - cancellation of alarms - YES - scrolling - numbering - shift - NO ‚ ƒ „ • ‚ ƒ „ fig.
2. S W IT C H IN G O N 2.1. Standard switch-on The MX2000 is switched on by momentarily pressing the key A sound and light signal regularly indicates correct operation of the instrument. The following appear in succession on the display: MX 2000 all lights come on F 1.00 the version number of the software TEST self-test running Then come successively the various channels programmed in the factory: X-CO GAS is the type of explosive gas programmed and detected.
The following then appear in succession on the display : MX 2000 (momentarily) then METH % then every time the BUTANE key is pressed : and so on... Confirm your choice by pressing: The following then appears on the display: F. X.XX which is the version number of the internal software, then TEST 3. followed by normal scrolling of the four channels. S W IT C H IN G O F F Press the key continuously.
5. U S IN G T H E K E Y S KEY When this key is pressed momentarily for the first time will appear following the preprogrammed options for example : "Rondier" list first name, the alternated time, the date,… 20 : 22 : 42 or Hrs mins secs 01 03 96 Date Pressing a second time brings up: ACC Volts which is the voltage of the battery pack or dry batteries.
• Min CO the minimum CO concentration detected (in parts per million) X ppm • Max CO the maximum CO concentration detected (in ppm) X ppm • Min H2S the minimum H2S concentration detected (in ppm) X ppm • Max H2S the maximum H2S concentration detected (in ppm) X ppm • UEL CO X ppm (upper explosive limit) averaged measurement detected for CO (in ppm) • UEL H2S Averaged measurement detected for H2S (in ppm) X ppm - 20 -
• LEL CO (low explosive limit) averaged measurement detected for CO X ppm • LEL H2S averaged measurement detected for H2S X ppm Comment: Pressing the key causes the brightness of the display to increase. (1) If the instrument is equipped with the PATROL function, the name of the first selected zone appears first (see section on “patrol option”) KEY This is a shift key, or it is used to say “no”.
6.
EXAMPLE : PROGRAMMING OF FLAMMABLE CHANNEL : - validate the flammable channel (gas name) by pressing ON - to bring up ON we can thus display or OFF with each operation of - Validate the position choosen by pressing key - If ON has been selected - the following now appears on the display meth % - then by successive presses, the various gases which can be detected by the MX2000 appear. meth LEL etc e.g.: BUTANE - validate the gas to be detected by pressing the - the display then shows al X.
if yes : validate by pressing the then shows key and the display program It is now possible to enter another menu by pressing the by displaying key or to return to normal operation END Finally validate by pressing the to normal operating mode. key, and the MX2000 returns if no : validate by pressing the key, when the display then shows program and it is now possible to re-start the parameter set-up, go into a menu or return to normal operation (read the preceding sections).
- validate by pressing - this bring up CG X.XX - display the value of the calibration gas which will be used for the calibration, by presses on the key to increment and on the key to move. - then validate by pressing key - This brings up : X.X.X. ( = zero, x.x..x. = value of the zero) - ensure that you are in a clean atmosphere - validate by pressing key - this brings up S :X.XX (S = sensitivity x.x.x.
Note: To enter another menu on the way, press key if no : validate by pressing key calib again bringing up or to go to another menu.
- the display then shows 0 adjust (zero adjustment) - validate by pressing key - ensure that you are in a clean atmosphere - the display then shows XX : XX and the 2 lamps come on “XX” is the position of the 64-step digital potentiometer (automatic zero adjustment) “XX” is the value of the zero - validate by pressing key (fig.1).
if yes : validate by pressing key chg cell again bringing up It is now possible to go to another menu. If the signal has not yet stabilised (lamps still on), and you still validate the “yes” (using key ) bad adj the display then shows and you return automatically to the preceding state to re-adjust the sensitivity. if no : validate by pressing key again bringing up , and you can now repeat the chg cell calibration or enter another menu.
b / Manually (using the maintenance access code) - after a minimum operating time of about 15 minutes - bringing up the SELF ADJ menu - validate by pressing key - the display then shows YES NO? - if yes validate by pressing key - the display then shows DONE - then the MX 2000 goes into a normal operating cycle - if no : validate by pressing key - and the display then again shows SELF ADJ - to repeat or to enter another menu THE FINISH MENU - bring up END by pressing and if maintenance has been
7. A L AR M S These are both visual (lamps/lights and display) and audible (fig.1) • GAS alarms According to the programming and the type of gas, the “Gas alarms” can be triggered when the following values are exceeded: - instantaneous (on 4 channels) - minimum (on oxygen channel only) - maximum (on 4 channels) - Short Term Exposure Limit (STEL) which is a rolling 15-minute mean for each channel equipped with a TOX cell.
P U L S E D L I G H T A N D S OU N D A L A R M : DISPLAY AL 02 Alternating with the O 2 measurement CAUSE The over- or under-oxygenation threshold has been exceeded X 02 Alternating with the detected gas measurement The instantaneous threshold has been exceeded GAS is the type of gas detected STEL GAS X. GAS GAS is the gas type detected TLV GAS Alternating with the detected gas measurement X. GAS The STEL threshold is exceeded .
C O N T I N U O U S S O U N D AN D VI S U A L A L A R M : DISPLAY disch. EX RANGE CAUSE REMEDY - Battery discharged: the - Sound alarm (can be acknowledged)* instrument is no longer usable - Visual alarm (cannot be acknowledged): recharge the battery. - The measuring range has been exceeded. Then > 5.0 GAS GAS is the gas type detected - Sound and visual alarms (cannot be acknowledged) in explosive gases: you must leave the hazardous area and switch the instrument off and on again.
8. • A C KN O WL ED G EM ENT O F A L AR M S Acknowledgement of GAS alarms : by pressing key momentarily This consists of cancelling the pulsed sound signal and switching off the two common alarm lamps. However, the alarm lamp of the corresponding channel will continue to blink as long as the threshold continues to be exceeded. • Acknowledgement of fault alarms : If a fault occurs, acknowledgement of the sound and visual alarms is not possible*.
9. M E A S U R E M E N T R EA D IN G The MX2000 can be equipped with either a red LED display or a liquid crystal (LCD) display. • Immediate reading : The gas content measured by each of the working cells is available on the display. However, as the amount of information required by the bearer is greater than the capacity of the display, the measurements are displayed successively and cyclically, as follows: X. GAS X. 02 GAS is the gas type programmed X is the value of the detected gas measurement X.
T H E “ P A T R O L ” OP T I ON • If the MX2000 is equipped with the “PATROL” function (initialised in the factory) and if the instrument is now in normal operation, the first thing to appear on the display, by pressing key , the factory. is the name of the first zone pre-programmed in Then, with each subsequent press on key appear. the names of the other zones For example: ZONE 1 ZONE 2 ZONE 3 etc.
1 0 . D IS P L A Y B R IG H T N E S S a / With an LED display The brightness can be increased for about two minutes by pressing key or key (to look up parameters such as the time, etc.) and in this case one can return to normal brightness by pressing key Comment: The display goes to its bright state whenever an alarm is triggered.
1 1 . C O N N E C T IO N T O A P C O R T O A P R IN T E R ( IB M - P C c o mp a t i b l e ) Connection of a printer to the MX2000 requires the use of a PC and of the CR2000 charger (which acts as an interface to the MX2000) and using appropriate cables. The MX2000 holds its data in memory : - events (alarms, alarm acknowledgement...
• Connection procedure - make the connections according to the diagram below : COMPUTER ORDINATEUR PC MX2000 PRINTER IMPRIMANTE CR2000 COMPUTER/PC Cordon liaison PC / IMPRIMANTE COMPUTER/PC Cordon liaison PC/CR2000 (1) - place the MX2000 in the CR2000 charger, which is already switched on (steady green light on) - check that the LED of the charger goes red, either steady or blinking. - prepare the PC, using the COM2000. - switch on the printer, and put it to the “on line” position.
1 2 . U S IN G T H E C O M 2 0 0 0 T ab l e o f c o n t e n ts : Connection Characteristics Maintenance Analysis of faults Histories Setup 12.1. CONNECTION To make the connection between the MX2000 and the PC, proceed as follows : - verify that the MX2000 is on - the MX2000 must be in its charger.
12.2. CHARACTERISTICS OF THE MX2000, current data The data displayed on the Characteristics screen are read into the MX2000 and are refreshed once every second for the four channels.
12.3. MAINTENANCE WORK The Maintenance menu can be used for : - calibration - programming - cell changing Ø CALIB R ATION Among other things, the maintenance menu is used for : § calibration of the explo channel, § calibration of the oxygen channel, § calibration of the toxic channels. The operation can be halted at any stage. § CALIBRATION OF THE EXPLO CHANNEL To carry out the calibration of the explo channel, proceed as follows : - Check the concentration of the calibration gas proposed.
§ CALIBRATION OF THE OXYGEN CHANNEL To perform calibration of the oxygen channel, proceed as follows : - Place the instrument in pure air, with COM2000 displaying the sensitivity measurement of the instrument. - Validate the operation by clicking on the Ok button when the measurement has stabilised. § CALIBRATION OF THE TOXIC CHANNELS To carry out the calibration of a toxic channel, proceed as follows : - Check the concentration of the calibration gas proposed.
§ PROGRAMMING THE EXPLO CHANNEL To carry out programming of the explo channel, proceed as follows : - switch the channel on or off by clicking the In Service box. - select a gas from the scrolling list offered. - if you select Other Gas, you must then enter the coefficient to be applied, in the appropriate field. - then enter the alarm threshold and validate the operation by clicking on the Ok button.
Ø CHANGING A CEL L The maintenance menu is used, among other things, for changing a cell in the COM2000. In a first stage, for all channels, the COM2000 requires a message of confirmation before it will run the zero calibration procedures for the new cell. When the cell is replaced and the request validated, the COM2000 begins the changing a cell procedure. 12.4. FAULT ANALYSIS The events are indicated in priority order. A scrolling list allows all the lines to be examined if the screen is too small.
12.5. HISTORIES The histories are composed of frames, which themselves are composed : - of the measurement part which indicates the gas concentration at any time - of events which may have happened during the frame (scale exceeded, cell stopped, etc.) You can look at the archived histories by entering the name of the file, with the HIS extension, to be opened by COM2000. You can then carry out the analysis of a frame.
§ THE TEXT MODE When the histories are in text mode for the analysis of a frame, the dates, times, and successive gas concentrations are shown in chronological order (the oldest at the top). A scrolling list is used to display the lines if the screen is too small. § THE GRAPHICAL MODE When the histories are in graphical mode for the analysis of a frame : - the title, the date and the time are shown at the top.
12.6. SETUP You can modify the display mode (measurement or detection) and load the time and/or the date of the MX2000. The Code button enables you to alter the access code. The Patrol button can be used to alter the patrol list. Note : All modification of setup « purges » the histories.
I V. T H E CR 2000 C H AR GER 1. T H E C R 2 0 0 0 - S - C H A R G ER ( N i MH ) The charger is intended for charging the MX2000 equipped with a pack of nickel metal hydride type (Ni MH) batteries. 1.Steady green light • The charger is switched on but there is no MX2000 on charge. • There is an MX2000 on charge, but it is fully charged. 2.Steady red light • The charger is in its fast charging cycle. • The current delivered is 120 mA for a period of 14 hours. 3.
V. MAI N T EN ANC E AN D U PK EEP Important ! The only means of checking that the instrument's detection function is working properly is the calibration performed with the help of a standard gas. This "recommended" standard gas is specified on the label of the detector. Nevertheless, some other standard gas may be used on referring to the table of coefficients: Chapter VIII of this manual. Hence, calibration mus be carried out : 1.
• Calibration procedures on the MX2000 : For each channel, calibration consists of setting the zero in clean air and the sensitivity with calibration gas. • Zero adjustment in clean air : follow the procedure on p. 28 • Setting the sensitivity - Clip the gas injection cap onto the MX2000 (fig.9 and fig.10) in the cell zone. - connect the tube from the calibration kit, and inject the gas at a maximum rate of 60 litres per hour. - then follow the “calibration” procedure.
2. U PK EEP • Re-charge the batteries or change the dry batteries regularly (outside of classified areas). • The lithium battery should be changed every 3 to 5 years. • For users with the COM2000 software, this operation must be carried out by authorised staff only. • Unscrew the cell-cover screws. • Remove the lithium battery, located alongside the tube, and insert a new battery * • Re-program the date and the time with the COM2000 software. • Re-mount the cell cover, and do up the screws.
VI . OPER AT IN G F AU LT S SYMPTOMS - The screen shows nothing, if there are no further audio beeps. CAUSES - Battery exhausted. - Battery pack discharged. - Instrument faulty REMEDIES - Change the battery. - Re-charge the battery pack. - Return the instrument to the distributor. FAULT appears, with a continuous sound and visual alarm cannot be reset - Memory loss and lithium battery - Change the lithium battery and exhausted. if the fault persists, return the instrument to the factory.
V I I . T EC HN I C AL C H AR ACT E RI ST IC S - Manufacturer : - Function : - Type : - Gas detected : OLDHAM S.A.
- Pulsed visual and sound alarms : • 1 instantaneous threshold on adjustable explosimeter • 2 instantaneous thresholds on oxygen • 1 instantaneous alarm threshold • 1 TLV alarm threshold • 1 STEL alarm threshold as toxicity meter - Sound alarm : 85 dB at 30 cm - Outputs : Charger - Power supply : • 4 dry batteries, R6 1.
Note : Under the using ATEX group II, the temperature classification T3 or T4 depends the instrument power supply. When an instrument is fitted with dry batteries or with an rechargeable battery-pack indicated T4, the temperature classification will be T4. With other types of pwer, the temperature classification will be T3.
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V I I I . L I ST OF O PT I ON S 1. L IS T O F P A R A M ET E R S A N D O PT IO N S A V A IL A B L E IN T H E S O F T W A R E O F T H E M X 2 0 0 0 IN S T R U M E N T S Options STEL / TLV (TWA) : allows storage or not of the STEL and TLV. Detection : normal or Gas operating mode. For the next two options, the MX 2000 must have been operating for at least the time given by the stabilisation variable. This allows a self-zeroing to be carried out on cells which have been operating for some time.
I X. APPEN D I C ES 1. P a r a me t e r s Parameter Unit Excursion Typical value Comment Time-out second 1 to 65535 600 s (10 mins) From the moment when the user places the MX 2000 into its charger, this is the time during which the user is allowed to connect to the instrument, for maintenance purposes.
2. C H A R A C T E R IS T IC S O F T H E C E L L T Y P E S U S A B L E IN TH E MX 2000 Explo O2 CO H2 S Standard range 100% LEL 30% vol 500 ppm 100 ppm Minimum detectable Accuracy Zero drift Response time Lifetime Guarantee 1% LEL 0.1% vol 1 ppm 1 ppm < 3% < 3% 20 s 48 month 12 month < 0.3% vol < 0.1% vol < 10 s* 18 month 12 month < 5% < 2% 30 s 48 month 12 month < 5% < 2% 30 s 48 month 12 month * time to activate the alarm at 18% vol.
3. A C C E S S O R IE S Name References EXPLO cell O2 cell CO cell H2S cell Gas injection cap Ni MH. S charger Carrying bag Hexagonal male spanner PC lead Gas calibration kit (in 6.8 l) 4. 6313 530 6313 531 6313 535 6313 536 6331 119 6511 141 6121 528 6145 737 6116 026 Air Zero Methane 2.
5.
6. IN T E R N A L S E N S IT IV IT Y C O E F F IC IE N T S L IS T F O R M X 2 0 0 0 GAZ ethylen Acetat Aceton Acethylen Butan 1,3 - Butadien 2 - Butanon Dymethylether Ethanol Ethylen natural Gas Hexan Hydrogen Isobutan Isopropanol ethylen Oxy, propylen Oxy, Pentan Propan Propylen SP95Super Toluen Xylen FORMULE BRUTE LEL COEFFICIENTS CH4 C4H8O 2 C3H6O C2H2 C4H10 C4H6 C4H8O C2H6O C2H6O C2H4 CH4 C6H14 H2 C4H10 C3H8O C2H4O C3H6O C5H12 C3H8 C3H6 / C7H8 C8H10 3% 2.15 % 1,5 % 1,5 % 1.
7. C O M P L E M E N T A R Y S E N S IT IV IT Y C O E F F IC IE N T S T O B E P R O G R A M M E D O N T H E C H A N N E L " OT H E R G A S " FR O M MX2 0 0 0 GAS General formula LEL UEL Vapour density Coef / CH4 Calib.gas recommended Benzene C6H6 1.2 % 8% 2.7 2.7 But/Prop Cyclohexanone CH2 (CH2)4C 1.3 % 9.4 % 3.4 3.2 But/Prop Petrol ("super") Mixture 1.3 % 6% >2 2.1 But/Prop Ethane C2H6 3.0 % 15.5 % 1.04 1 L.P.G. Prop + But 1.65 % ≅ 9% 1.85 1.
Please detach and destroy this slip after having commited your code to memory " Your secret code is : - 64 - 0018
OLDHAM SA - GAS DETEC TION D IVISION LIMITED W ARRAN TY As per sales conditions RELIABILITY - C ONTROLS Your satisfaction is our primary concern. This means our equipment and our technical departments must be reliable, and the quality of our production is essential to achieve that reliability. Quality is ensured by extremely strict verifications carried out during production, at the end of manufacture and before shipment. (All shipped equipment is configured to meet your requirements).
MAINTENANC E CON TR ACT REGULAR MAINTENANCE IS NEEDED to ensure that your equipment meets the stipulated performance levels, as well as to guarantee the safety. OLDHAM SA CAN offer you MAINTENANCE CONTRACTS. TR AIN IN G OLDHAM SA has a fully-equipped TRAINING Department : a number of engineers specialized as instructors, conference rooms, equipment available for practical exercises, computer equipment, display equipment, etc..
