Oldham MX 2100 Maintenance Manual
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Réf.:
CD00002
Code: 06 MT MX2100 GB02
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OOLLDDHHAAMM SS..AA..
GAS DETECTION AND DUST ANALYSIS
We are delighted that you have chosen an OLDHAM S.A. instrument and would like to thank you for your
choice.
We have taken all the necessary measures to ensure that your instrument provides total satisfaction.
Now it is important to read this document carefully.
EEXXTTEENNTT OOFF RREESSPPOONNSSIIBBIILLIITTYY
* OLDHAM S.A. declines its responsibility towards any person for material damage, physical injury or death
resulting wholly or partly from inappropriate use, installation or storage of its equipment resulting from failure to
observe instructions and warnings and/or standards and regulations in force.
* OLDHAM S.A. neither supports nor authorises any company, physical or moral person to assume responsibility on
behalf of OLDHAM S.A., even if it is involved in the sale of OLDHAM S.A. products.
* OLDHAM S.A. cannot be held responsible for direct or indirect damage or be required to pay direct or indirect
compensation resulting from the sale or use of any of its products IF THESE PRODUCTS HAVE NOT BEEN
DEFINED AND CHOSEN BY OLDHAM S.A. FOR THEIR SPECIFIC USE.
CCLLAAUUSSEESS CCOONNCCEERRNNIINNGG PPRROOPPEERRTTYY
* Drawings, plans, specifications and information included in this document contain confidential information that is
the property of OLDHAM S.A.
* 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 manufacture or sale of OLDHAM S.A. equipment or for any other reasons
without prior consent from OLDHAM S.A.
WWAARRNNIINNGGSS
* This document is not contractually binding. In the interests of its customers, OLDHAM S.A. reserves to modify the
technical specifications of its equipment without notice, in order to improve its performance.
* READ THIS MANUAL CAREFULLY BEFORE FIRST USE OF THE EQUIPMENT: this manual must be
read by any person who is or will be responsible for using, maintaining or repairing this equipment.
* This equipment will only provide the announced performance levels if it is used, maintained and repaired
according to OLDHAM S.A. directives, by OLDHAM personnel or by personnel approved by OLDHAM
S.A.
GGUUAARRAANNTTEEEE
2 years guarantee in normal conditions of use on parts and technical labour, return in our workshops, excluding
consumables (sensors, filters, etc.)
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CONTENTS
I. INTRODUCTION ...................................................................................................................6
1. POWER SUPPLIES .................................................................................................................. 6
1.1. General power supply....................................................................................................... 6
1.1.1. Recharging of the battery pack......................................................................................... 6
1.2. Memory saving.................................................................................................................. 6
2. MEASURING CELLS .............................................................................................................. 6
2.1. Layout of cells on top of appliance: examples of configuration....................................... 7
2.2. Explosimetric cell ............................................................................................................. 7
2.3. Toxic gas and oxygen metering cells ................................................................................ 7
2.4. DETECTION OF “VERY HEAVY” EXPLOSIVE GAS.................................................... 7
3. DISPLAY UNIT........................................................................................................................ 7
4. VISUAL INDICATIONS.......................................................................................................... 8
5. AUDIO ALARMS..................................................................................................................... 8
6. REMOTE SAMPLING ............................................................................................................. 8
6.1. Electric pumping system BP2100 ..................................................................................... 8
6.2. Manual pumping system ................................................................................................... 8
6.3. The various probes ........................................................................................................... 8
7. CARRYING THE MX 2100: OPTIONS.................................................................................. 9
7.1 Positioning the appliance................................................................................................. 9
7.2 MX 2100 as beacon .......................................................................................................... 9
7.3 MX 2100 on shoulder strap .............................................................................................. 9
8. COMMUNICATION SOFTWARE COM 2100....................................................................... 9
9. "TWINCALL" CALIBRATION STATION........................................................................... 10
10. "TWINCALL" TESTBENCH................................................................................................. 10
II. UTILIZATION ......................................................................................................................10
1. FUNCTIONS OF KEYS: ACCESSIBLE BELOW THE DISPLAY UNIT ON THE
APPLIANCE'S FRONT PANEL................................................................................................... 10
2. READING MEASUREMENTS.............................................................................................. 11
3. SWITCHING ON.................................................................................................................... 11
3.1. Switching on in standard mode....................................................................................... 11
3.2. Switching on with choice of reference explosive gas...................................................... 12
4. SWITCHING OFF................................................................................................................... 12
5. DISPLAY UNIT LIGHTIN G.................................................................................................. 13
6. SCROLLING THROUGH MEMORIZED PARAMETERS.................................................. 13
6.1. "Roundsman" function.................................................................................................... 14
7. ALARMS................................................................................................................................. 14
7.1 "Gas" alarms.................................................................................................................. 14
7.2 Fault alarms.................................................................................................................... 15
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7.3 Acknowledging alarms.................................................................................................... 15
7.3.1. Acknowledging gas alarms............................................................................................. 15
7.3.2. Acknowledging fault alarms........................................................................................... 16
8. MEASUREMENTS................................................................................................................. 16
8.1. Display of instantaneous measurements......................................................................... 16
8.1.1. In "natural diffusion" mode............................................................................................ 16
8.1.2. With electric pumping systems........................................................................................ 16
8.1.3. With manual pumping systems........................................................................................ 16
8.2. Automatic switching to "0 -100% GAS" range................................................................16
8.3. Memorizing histogram measurements............................................................................ 16
8.3.1. Operating principle ........................................................................................................ 17
9. PRINTING DATA (VIA COM 2100)..................................................................................... 17
III. SPECIAL INSTRUCTIONS FOR USE IN ATEX EXP LOSIVE ATMOSPHERES ..... 18
IV. MAINTENANCE...................................................................................................................18
1. ACCESS TO MAINTENANCE MENUS ON MX 2100 ....................................................... 19
1.1 Channel programming menu.......................................................................................... 19
1.2. Cell calibration menu........................................................................................................ 21
1.3. Auto-zero menu ................................................................................................................. 21
1.4. Date and time management menu..................................................................................... 21
1.5. Exit menu........................................................................................................................... 22
2. ALARM TEST WITH TESTBENCH..................................................................................... 22
3. CALIBRATING CELLS WITH CALIBRATING STATION ............................................... 22
V. COM 2100 SOFTWARE.......................................................................................................22
VI. CHARGER MODULE..........................................................................................................26
VII. ACCESSORIES .....................................................................................................................26
VIII. SPARE PARTS ......................................................................................................................26
IX. TECHNICAL CHARACTERISTICS .................................................................................27
1. MX 2100 APPLIANCE........................................................................................................... 27
2. MEASURING CELLS (NON-EXHAUSTIVE LIST)............................................................ 30
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• The MX 2100 is a portable gas detector that can be used in explosive atmospheres in surface industries (Group
II) and in mines containing firedamp (Group I).
• Its basic function is the simultaneous detection of four gases present in the air and this can be extended to six
gases .
• These gases can be explosive, toxic or oxygen.
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1.1. General power supply
The MX 2100 is power-supplied by a rechargeable battery pack (NiMH) or non-rechargeable AAA alkaline batteries.
In normal service conditions, operating autonomy varies according to the configuration (cells) and the power supply
(rechargeable or non-rechargeable batteries) with a standard autonomy of 14 hours.
1.1.1. Recharging of the battery pack
With an intelligent battery charger integrated in the appliance (see the section on CHARGERS).
Average charging time: 2 hours 30 minutes
1.2. Memory saving
A second lithium battery ensures the storage of the MX 2100's specific data, such as when the main battery set is
completely discharged. This lithium battery has an average service life of five years.
IMPORTANT: The appliance is certified for utilization in explosive atmospheres in Groups I and II, and only
when it is equipped with non-rechargeable or rechargeable batteries of a type recommended by the
manufacturer.
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IMPORTANT: The intelligent cell units shall be:
- connected before switching on the MX 2100
- interchangeable outside area.
Non-rechargeable or
rechargeable batteries
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2.1. Layout of cells on top of appliance: examples of configuration
-
2.2. Explosimetric cell
This removable, interchangeable and intelligent cell unit can detect explosive gases in the range 0 to 100% LEL and/or
0 to 100% by volume, as applicable.
It is equipped with a cell body and filaments, and must be positioned in the MX 2100 as indicated above.
2.3. Toxic gas and oxygen metering cells
These removable, interchangeable and intelligent cell units are fitted with an electrochemical cell and electronic
components, including an EEPROM memory in which OLDHAM has stored the cell's specific characteristics
(measuring range, various correction coefficients, STEL and TWA alarms, date of manufacture, serial number, etc.).
Another item of data called the "wear rate" is used by the MX 2100 to automatically determine the optimal time to
replace the cell.
These types of cell unit are therefore also referred to as "intelligent units". They are po sitioned as indicated above (see
section 2.1).
2.4. DETECTION OF “VERY HEAVY” EXPLOSIVE GAS
The explosimetric cells of the Oldham portable detectors detect most explosive gases. However, for “heavy” gas and
vapours (with vapour density over three), it is ma ndatory to use a pump (manual or automatic) and/or to remove the
protective filter located on the explosimetric cells, in order to improve the detection speed.
"ALL GAS" RANGE
This function is particularly adapted to explosive gases with a density lower than three. For heavier gases or vapours, it
is mandatory to choose a specific range and use a pump (manual or automatic) and/or to remove the protective filter
located on the explosimetric cells, in order to improve the detection speed.
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This is an LCD type display unit which lights up automatically in backlit mode in case of alarm or fault.
It is also a graphic display unit so as to optimize the readability of measurements.
Its displays measurements:
- 5 measurements with units and types of gas,
- indication of the channel to be calibrated, where applicable.
It also displays parameters:
- date and time,
- minimum – maximum,
- mean STEL and TWA values,
- remaining autonomy (by bar graph),
- roundsman (name).
Explo cell. 0 to 100% LEL
or Explo/Katharo 0 to 100%
LEL /0 to 100% GAS
TOX cells (small models) or
oxygen cell with service life of
1 year (small model).
Oxygen cell with service life of
2 years (large model) or
- CO/H2S
- Semiconductor
- SO2, ETO, etc.
- CO2 IR
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Semi-rigid probe
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A set of indicator lights installed on the top of the appliance indicates alarms which can be seen from every direction,
whatever the working environment.
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The user is also warned by a built-in buzzer when an alarm is triggered.
N.B. On option, the MX 2100 can be equipped with a vibrator.
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The MX 2100 can be equipped with a sampling system to measure gas concentrations either in normally inaccessible
locations or before entering places which may be contaminated by gas (such as tanks, sewers or tunnels).
6.1. Electric pumping system BP2100
The snap-in pump unit is fitted to the top of the appliance, like the charger unit.
6.2. Manual pumping system
By using the charge unit equipped with an air inlet (olive), it is also possible to connect up a manual pumping system
(tube/bulb/probe).
6.3. The various probes
The "manual" or "electric" sampling systems can be equipped with various probes.
CAUTION: The semi -rigid sensor cannot be used in explosive atmospheres as it may generate sparks by
electrostatic discharges.
Telescopic probe
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7.1 Positioning the appliance
The person carrying the appliance can:
• either go about his or her work, leaving the MX 2100 to monitor the atmosphere (MX 2100 used as beacon),
• or take me asurements at various locations with a sampling system (MX 2100 on shoulder strap).
In order to be able to carry out the measurements correctly, the MX 2100 cells must always be
unobstructed. If this is not the case, gas contents could be underestimated and this could be fatal to
the user.
7.2 MX 2100 as beacon
The MX 2100 must be placed in the vertical position.
According to the type of gas to be detected or liable to be present, the appliance should be placed:
• on the ground in order to detect heavy gases (H2S),
• at mid-height (about one meter above the ground) or at the outlet of a ventilation port for general detection of
a maximum gas level or monitoring of oxygen,
• in a high position for the detection of light gases (hydrogen).
7.3 MX 2100 on shoulder strap
The MX 2100 can be used fitted with a clip, a belt clip, a harness, a case or a bag.
These accessories avoid the cells being placed against clothing, so that the gas exchange openings are unobstructed.
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This software is used to supervise and maintain the MX 2100:
- display, in uncoded mode, of measurements and parameters on channels,
- diagnostic assistance in case of failure,
- programming of the appliance and measuring channels,
- management of options,
- calibration of channels by automated dropdown menu,
- output of status and check sheet,
- management, display and printout of events and measurements stored,
- protection by password.
The MX 2100 can be connected to a computer via a cable equipped with an infrared port which is plugged into the
charger module.
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Checking and maintenance of the MX 2100 can be performed using a calibration station. This station consists of an
automatic gas injection system managed by a computer and connected to control devices via the COM 2100 software.
This station can be equipped with one or two gas cylinders depending on the appliance's configuration.
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Checking of the MX 2100 can be performed using a testbench which delivers test gases to the MX 2100 in order to
place the channels in alarm status.
The MX 2100 detects the presence of the bench and indicates, on the display unit, the faulty channel or channels where
alarms were not triggered.
This testbench can be equipped with one or two gas cylinders depending on the appliance's configuration.
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• Switch the appliance ON or OFF.
• Read mode on display unit.
• Acknowledge the gas audio alarm.
• Backlighting of display unit (extinguished automatically after about 15 seconds).
• Scroll through parameters.
• Select menus during utilization phase.
• Access the Maintenance level.
• Validate.
On/Off /Validate
Acknowledge audio alarm
Display unit read mode
Backlighting of display unit
Scroll through parameters
Scroll through menus
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The gas content measured by each of the cells "in service" can be consulted on the alphanumeric display unit.
This is divided into four separate areas, each one corresponding to a "measuring channel".
Example:
- A maximum of four measurements can be displayed simu ltaneously.
In each field, the measurement is displayed as follows:
• Measurement, measuring unit and gas symbol
The time is also shown at the bottom of the display unit.
Remark: The display unit can be manually programmed for reading from the front or from the top, depending on how
the appliance is carried by the user (on belt, in pocket, etc.).
This operation is performed by holding down the "acknowledge audio alarm" key for 3 seconds.
If five channels are used, the display in the last position will alternate.
If there are no toxic cells, the Oxygen and Explo. measurements will be displayed at the top of the dial.
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REMINDER: Before switching on the MX 2100, check that the necessary cells are connected.
When you switch the appliance on, you have a choice of two procedures:
• a standard procedure adopted in most cases,
• a procedure allowing you to select a reference explosive gas, this procedure being useful when checking for
a specific gas (town gas, methane, etc.).
3.1. Switching on in standard mode
• Briefly press the "On/Off/Enter" key.
Data field
second "toxic" channel
Data field
First "toxic" channel
Information field
Oxygen or toxic channel
CO2 or COV, etc.
Data field
"Explo" channel
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