Oldham MX15 Installation And Operating Instructions Manual
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Oldham MX15 Installation And Operating Instructions Manual

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  • Page 1 Ref : NPM15GB...
  • Page 2 Warnings Read these instructions carefully before installation and start-up particularly ensuring compliance with the instructions regarding safety of equipment with regard to the intermediary or final user. The electrical installation and connections should be performed by qualified personnel in accordance with the manufacturer instructions and the standards of competent authorities in the industry.
  • Page 3 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 4: Table Of Contents

    .....8 PECIFICATIONS FOR MECHANICAL AND ELECTRICAL INSTALLATION IN LASSIFIED ......................8 ETROLOGICAL PECIFICATIONS INDUSTRIAL SCIENTIFIC MX15 ONNECTION OF DETECTORS OTHER THAN TO THE CENTRAL UNIT 3.1. Transfer curves of central unit in configuration 0 at 100% LEL ............9 3.2. Power supply and load resistance characteristics ................10 ..............................10...

  • Page 5: Presentation

    The MX15 measuring and alarm unit has been designed for simple facilities that do not require the implementation of an electrical cabinet. The MX15 central unit can be connected to combustible or toxic gas detectors or oxygen detectors. The measurement of the sensor is displayed on the MX15 central unit and compared to alarm thresholds.
  • Page 6 Number of sensors: *1 OLC10-type combustible gas detector or 2 OLC10 TWIN detectors for detection of methane, butane, propane in boiler rooms and GPL, GNV or H2 in parking lots *1 OLCT10-type combustible gas detector for detection of methane, butane, propane in boiler rooms and GPL, GNV or H2 in parking lots *1 to 5 detectors of same type OLCT10 for detection of CO, NO, NO2.

  • Page 7: Detail Specifications For Use In Explosive Atmospheres In Accordance With The Atex 94/9/Ce European Directive

    Installation will be performed in accordance with existing standards, in particular, EN 60079-14, EN 60079-17 standards. The MX15 central unit should not be exposed to mechanical vibrations and should be installed in a safe area, away from explosive atmospheres. It is essential to refer to the operating and start-up instructions of the above-mentioned gas detectors in paragraph ‘Detail specifications for use in explosive atmospheres in accordance with the...

  • Page 8: Transfer Curves Of Central Unit In Configuration 0 At 100% Lel

    In the event that the user connects a detector of a brand other than INDUSTRIAL SCIENTIFIC to the MX15 central unit, he/she should ensure that the transfer curve is compatible with the input characteristics of the central unit, so that the information provided by the detector is accurately interpreted.

  • Page 9: Power Supply And Load Resistance Characteristics

    Mounting is performed using a DIN rail, positioned so that it provides a 5 cm free area around the central unit. The MX15 central should be installed in all facilities away from explosive atmosphere, preferably in an attended area (control centre, console room, control room, etc.) and in a less humid (no condensation) and temperate environment (see chapters 2.1 and 3)

  • Page 10: Power Supply

    2.2. Power supply 2.2.1. Power supply 230 Volts (115VAC on request) 230VAC is standard power supply: protection is provided either through F8= 630 mA/250VAC either through F6/F7 = 100 mA/250VAC A special “115VAC” configuration is provided by the manufacturer upon request. The central unit should be protected upstream through a bipolar differential circuit breaker.

  • Page 11: Alarm Relays

    Refer to the wiring examples at the end of the manual. 2.3.4. Remote acknowledgment A pushbutton for “remote acknowledgment” may be connected to the MX15 central unit to the “acknowledgment” terminals (dry and potential-free contacts) at a maximum 2-meter distance. Refer to the wiring examples at the end of manual.

  • Page 12: Operating Instructions

    Upon activation of the central unit a list of information is automatically displayed on the display unit: software version, maintenance access code, pre-programmed alarm thresholds, stabilisation time sheet, etc. and then the measurement continuously supplied by the sensor. 1.1. Measuring channel display The MX 15 central unit continuously displays the measurement;...

  • Page 13: To Exit While Viewing A Menu (Echap)

    2.3. To exit while viewing a menu (ECHAP) Simultaneously press the + and - keys and validate or don’t validate the recording of potentially modified parameters: press ENTER to abort without any change press «+», then ENTER to exit by validating the changes. 2.4.

  • Page 14: Initialisation Menu (Ini)- Start-Up

    (enter) finally confirm it (yes/no/enter) 2.7. Buzzer menu Allows or does not allow the use of the buzzer embedded to the MX15 central unit: display the BUZZER menu (+ and – keys) validate it (enter) validate ON (active buzzer) or OFF (buzzer off) finally confirm (yes/no/enter) 2.8.
  • Page 15 INDUSTRIAL SCIENTIFIC recommends: Calibrate the sensor connected to the MX15 central unit at least once a year, then based upon environmental conditions (T°, dust, vibrations etc.). It is also recommended to calibrate the detector upon exposure to high gas concentrations.

  • Page 16: Testing Of Relays And External Controls

    It is also recommended to periodically check alarm activation and the corresponding external controls. Do not use alcohol or ammonia-based liquids to clean the central unit. If needed, clean the outside of the case with a damp cloth. The central unit does not require special maintenance. If sensor calibration is required, this operation should only be performed by qualified personnel.

  • Page 17: Replacement Of Fuses

    Fuse replacement should be performed only by qualified personnel. List and type of fuses used in the MX15 central unit: the fuses used should comply with CEI 127, should be timed and have a low cutoff power. Concerning the conservation, of the protection and the improvement of the...

  • Page 18: Examples Of Connections

    2 wires. MX15 CENTRAL UNIT 3 1 3 1 3 1 3 1 3 1 3 1 Example of connection between a MX15 central unit and two OLCT10-type sensors for detection of the same gas (maximum 5 sensors) .
  • Page 19 Connector of first sensor with 3 active wires. MX15 CENTRAL UNIT 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 Example of connection between a MX15 central unit and two OLC10 TWIN-type sensors.
  • Page 20 JUMPER Jumper Jumper L N T MAINS 230VAC +24V relay contact outputs: potential-free NO or NF based on position of Remote jumpers next to relays. acknowledgment 1 2 3 Connector of sensor with 3 active wires. Connect the 3 wires based on numbering Example of connection with an EXPLO or TOXIC sensor with 3 active wires.
  • Page 22 Ex-Ox-Tox Gasdetectie Westerdreef 5V 2152 CS Nieuw-Vennep Telefoon: 0252 620885 E-mail: info@exoxtox.n Website www.exoxtox.nl...

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