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Oldham BM25 Operating Manual

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Summary of Contents for Oldham BM25

  • Page 1 BM25 REF: NPB25GB REV E...
  • Page 2 GAS DETECTION We are delighted that you have chosen an INDUSTRIAL SCIENTIFIC- 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. INDUSTRIAL SCIENTIFIC- 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.

  • Page 3: Table Of Contents

    CONTENTS I N T R O D U C T I O N ............6 1.
  • Page 4 8. MEASUREMENTS ......................16 8.1. Display of instantaneous readings ...............17 8.1.1. Diffusion mode..........................17 8.1.2. With electric pump systems .......................17 8.1.3. With manual pump systems .......................17 8.2. Automatic range change « 0-100 % Gas »............17 8.3. Memorizing histogram measurements..............18 8.3.1. Operating principle, memorized items:..................18 8.3.2.

  • Page 5: I N T R O D U C T I On

    • The BM25 gas detector is a stand-alone gas detector that can be used in explosive gas atmospheres according to directive ATEX 94/9/EC, the Canadian Electrical Code, and international standard IEC 60079-10-1. It provides simultaneous detection of up to 5 gases present in the air by means of sensors specific to each risk to be evaluated (under-oxygenation, explosive or toxic gases).

  • Page 6: Sensors

    SENSORS 2.1. Connecting the sensors configuration samples Sensors S7/S3 Explosive gas sensor 0 to 100% LEL SO2, ETO etc… or catharometric sensor 0 to100 Vol.% - CO2 IR Or medium oxygen sensor with 2 years lifetime Small format sensors for toxic gases and oxygen with 1 year service life 1bis...

  • Page 7: Explosive, Toxic Gas And Oxygen Metering Sensors

    The operator is also warned when an alarm is triggered by two very powerful, built- in horns (103 dB @ 1m). SAMPLING The BM25 gas detector can be equipped with an internal electrical pump or an external manual pump to measure gas concentrations in inaccessible locations or in locations needing to be verified before access.

  • Page 8: Operating Instructions

    6.1. Operating instructions The operator can: • Gas detector mode: place the gas detector in the working area and let the BM25 monitor the atmosphere. • Sampling mode: take regular measurements by means of a sampling system (manual or electrical).

  • Page 9: Communication Software Com 2100

    The BM25 can be connected to a computer via a cable equipped with an infrared port. Two versions are available: COM or USB port KEYBOARD Push buttons are "piezo"...

  • Page 10: Starting Up

    OFF. For the first power up, you must open the rear cover of the BM25, and switch the button to ON. During first start- up, or after a period of inactivity longer than one month, the detector must be charged, then discharged and recharged completely before operation.

  • Page 11: Starting Up In Standard Mode

    Note: when the instrument is operating, it emits a visual confirmation flash in order to indicate that the BM25 gas detector is operating correctly. Upon request or by using COM 2100 software, this signal can be cancelled and the interval between each signal can be modified.

  • Page 12: Shutting Down

    If, after starting up, the date of calibration has expired, the instrument triggers a calibration due signal on the channel concerned. This calibration due signal can be cancelled and the gas detector is still in use but must be calibrated. SHUTTING DOWN To shut down, hold down the "On/Off"...

  • Page 13: Re-Initialization Of Min/Max

    Pushing Acknowledge and Lighting simultaneously restores “min and max” values to the current measurement value. An audible beep confirms the action. ALARMS The BM25 is equipped with two types of alarm signals: Visual alarms: messages in uncoded mode displayed, a 360° red light visible from all directions Audible alarms two powerful horns (103 dB @ 1m.)

  • Page 14: Acknowledging Gas Alarms

    The remaining battery life is at least 20 minutes, during this phase, measurements are still provided, only audible beep can be acknowledged. • Battery fault: The BM25 is no longer measuring, fault is not acknowledgeable. v " > 100% LEL: outside range" in explosive channel This concerns only the explosive channe l and if there is no catharometric sensor ( 0 to 100% vol).

  • Page 15: Alarm Transfer

    7.4. Alarm transfer The BM25 has two “static” relays: one “gas alarm” relay common (in closing) for all channels and one “failure” relay common (in opening) for all channels. The alarm relay is configured through COM2100. The BM25 is also equipped with two logic inputs (TOR):...

  • Page 16: Display Of Instantaneous Readings

    With a explosimetric % LEL/ catharometric ( % vol) sensor and with an oxygene sensor ( mandatory in this case), the BM25 switches automatically from the gas explosibles measure range “0-100% LEL” to the range “0-100% GAS” when the measure is above 100%LEL of the selected...

  • Page 17: Memorizing Histogram Measurements

    8.3.1. Operating principle, memorized items: The BM25 stores sets of data as soon as it is started, and then in cyclic mode. Each of these sets or threads (with their pre-programmed specifications) has the same structure. A thread contains: •...

  • Page 18: Hazardous Areas And General Rules

    EN 50303 of July 2000 Hazardous areas and general rules The BM25 can be used in explosive atmospheres in Group II surface industries and Group I mines containing firedamp. The ambient temperature range for its use is from –20° C to + 55° C.

  • Page 19: Gas Detector Recharge Connector

    I (M1) II (1) G/D [ EEx ia ] I [ EEx ia ] IIC LCIE 02ATEX6104X) The BM25 gas detector has a Co=0 and a Lo=0 on external power connectors. It is possible to connect two external power supplies on the connector in accordance with the rules specified in the previous paragraph.
  • Page 20 Figure 1 shows the different connections of the BM25. The connectors are located on the sides of the gas detector. Note: Unused connectors must be equipped with their protective cap.
  • Page 21 External power supply for trickle charging U in =30V, I in=160 mA, Lin=0 et Cin=0 Logic input U out = 5 V, I out = 50 mA, L out = 8 mH, C out = 7 µF Caution: The responsible person must create an IS system log (see BM25 note)
  • Page 22 Alarm Staight forward alarm transfert Manual call point connection Two Balise interconnection...

  • Page 23: Marking

    Marking ATEX and IEC Ex Industrial Scientific Oldham CE 0080 BM25 IP66 Ambient T : -20° C +55° C II 2G / I M2 Ex ia d IIC T4 Ex ia d I INERIS 05ATEX0044 IECEX INE 06.0002X Do not open in explosive atmospheres Potentially hazardous electrostatic charges –...

  • Page 24: Access To Maintenance Menus

    When a catharometric sensor is used, to program low instantaneous thresholds. (1) List of pre-programmed “explo" gases and coefficients The explosive sensor of the BM25 is of thermo catalytic “Pont de Wheatstone” type. The coefficients are given for information in relation to a CH scale with LEL = 5.0% (the...
  • Page 25 Molecular Vapour Coef. / CH Suggested Abbreviation Formula density gas calibr. (French) 1.35 Ethyl Acetate 2.1% 11.5% But/Prop Acetone 2,15 % 13 % 1,70 But/Prop Acetylene 1,5 % 100 % But/Prop 1.25 Butadiene 1.4% 16.3% 1.85 But/Prop 2,13 Butane 1,5 % 8,5 % But/Prop 1.75...

  • Page 26: Sensor Calibration Menu

    - prints status and control reports - enables the management, display and printout of events and measurements stored - is password protected The link between the BM25 and the PC is made by a “COM” or “USB” infrared port adaptor cable.

  • Page 27: Instrument Connection

    Opening screen NOTE: COM 2100 automatically detects a MX2100 or BM25 connection and relevant screens are displayed. program necessary communication parameters (port, speed, language). Click on “connect” Maintenance window: Menu access The password to access to different menus is by default 1000.
  • Page 28 PROGRAMMING 1/ Channel programming: Access authorized by code. The standard code is 1000. select desired configuration: the first column “Start up" (on the upper left) corresponds to activated or inactive measurement channels. The second column “Presence" (on the upper right) corresponds to the presence or absence of sensors on the instrument.
  • Page 29 CALIBRATION choose sensor to calibrate set, if necessary, the maintenance interval indicate the standard gas level used proceed to “zero” as per instructions of software then proceed to sensitivity without forgetting to indicate first (in red) the standard gas level to be injected.
  • Page 30 UPDATE OF DATE and TIME FROM PC to BM25 You can update the BM25 clock directly with the PC clock. click “OK” to validate MONITORING REPORT fill in the fields (user's information for instance) create the monitoring report open it from the PC (from COM 2100 folders) to view or print it.
  • Page 31 click “read-only” printable version of certificate it is possible to personalize this document by changing headers for instance (your firm ...)
  • Page 32 STATUS REPORT Follow the same procedure as above Configuration of alarm relay and logic inputs for the BM25: fill in the table displayed on screen by clicking on the appropriate windows according to alarm relay use and logic inputs needed.
  • Page 33 SCREENS Window “screen”: displays history, faults, readings and configuration of the instrument at the time of purchase. The maintenance access code for the BM25 (0018 standard) and software access code (1000 standard) can also be modified roundsman list can be created for further use by operators. This provides histograms...

  • Page 34: C H A R G E R

    “>” key This way, you can navigate names or the full list from left to right and right to left, by using the single or double arrows Click “OK” to download the new list to the BM25. INTRODUCTIO N Integrated and intelligent charger, with continuous power supply of 12VCC to 30VCC compatible for vehicle use.

  • Page 35: Charging The Battery

    Battery charge time is 4 hours and a half. TRICKLE CHARGE The BM25 is supplied with a connector for trickle charge (right next to the charger connector). By means of one or two intrinsic safety power supply, the battery’s charge can be maintained (except in alarm conditions) while leaving the BM25 in use in a classified area.

  • Page 36: D I S P O S A

    BM25 must be disposed of separately from electronic equipment and cannot be disposed of with normal household waste. The user therefore has an obligation to separate the BM25 from other waste to ensure that it is recycled safely for the environment. For further details on existing collection sites, contact the local administration or seller of the product.
  • Page 37 6 313 888 EXPLO sensor, 0-100% LEL EXPLO CATHARO sensor, 0-100% LEL and 5-100% vol CH4. 6 313 889 Only for BM25 ( available also in version H2) MEDIUM sensors 6 313 780 sensor (medium type) (lifetime 2 years) 6 313 823...

  • Page 38: T E C H N I C A L C H A R A C T E R I S T I C

    Explosive gases, toxic gases and oxygen Measurement: Continuous on all sensors in operation Sensors: • Intelligent, precalibrated, interchangeable units • Automatic recognition by the BM25 by means of EEPROM Display unit: • Graphic LCD • Messages in uncoded mode, with backlighting •...
  • Page 39 EN 50270. Marking in accordance with Explosive Atmospheres Directive 94/9/EC ATEX and the IEC Ex standards. On the BM 25 : INDUSTRIAL SCIENTIFIC OLDHAM CE 0080 BM 25 II 1G/ I M1 EEx ia IIC T4 EEx ia I...

  • Page 40: Sensors (Non-Exhaustive List)

    Sensors (non-exhaustive list) Table No. 1 Methane Propane Methane Oxygen Oxygen Carbon Dioxide Carbon Hydrogen Monoxide sulphide H 2 years 1 year Sensor reference 6 313 888 6 313 888 6 313 889 6 313 780 6 313 817 6 313 818 6 313 787 6 313 788 Standard range (1)
  • Page 41 Table No. 2 Chlorine Hydrochlorid Hydrocyanic Ammonia Ammonia Nitrogen Nitrogen Sulfur e acid acid oxide Dioxide Dioxide Reference 6 313 809 6 313 804 6 313 805 6 313 799 6 313 800 6 313 802 6 313 801 6 313 819 Standard range (1) 1000 Measurement principle...
  • Page 43 Ex-Ox-Tox Gasdetectie Luzernestraat 35 2153 GM Nieuw-Vennep Telefoon: 0252 620885 E-mail: info@exoxtox.nl Website: www.exoxtox.nl...

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