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USER MANUAL
400GD
6812EN

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Summary of Contents for mru 400GD

  • Page 1 USER MANUAL 400GD 6812EN...
  • Page 2 Legal notices / Intellectual property rights comments Original user manual © 2018 by MRU No part of this manual may be published in any form (print, photocopy, electronic media or any other publication form) without a written approval by the publisher.
  • Page 3: Table Of Contents

    Content 1 Introduction..............................4 Intended usage..........................4 The company MRU GmbH......................5 2 Security and safety directions for the analyzer................6 Safety manual ...........................6 Description..............................7 3.1 Purpose................................7 The Analyzer..........................7 User interface..........................8 Menu structure..........................8 4 Operation..............................9 4.1 Commissioning..........................9 4.2 Power up............................9 4.3 Power down............................9 4.3.1 Power down .........................9 4.3.2 Auto-off function .........................9...
  • Page 4: Introduction

     Please pay special attention to the security and warning signs, to avoid personal injuries and damaging the product.  MRU can’t be held responsible for damages or injuries, by mot following the instructions in this manual.  Always keep the manual near you when working with the analyzer, to be able to read instructions as needed.
  • Page 5: The Company Mru Gmbh

    Introduction The company MRU The Analyzer is manufactured by the MRU GmbH in Neckarsulm, Germany (founded in 1984), a medium sized company that specializes in developing, producing and marketing high quality emission monitoring analyzers. MRU GmbH manufactures a wide range of instruments, from standard analyzers up to tailor made industrial analyzers Plant 1: Sales, Service, R&D...
  • Page 6: Security And Safety Directions For The Analyzer

    Security and safety directions for the analyzer Safety manual All general information and safety precautions of MRU products are listed in the supplied separate safety manual. Therefore, this manual must be read and observed before the first use of the analyzer.
  • Page 7: Description

    Description Description Purpose The main purpose of the 400GD multi-gas detector in combination with the exchangeable sensor heads is the detection of gases and flue gases in boiler rooms / heating installations and test:  Surface mounted gas pipes  Check ambient air for combustible gases ...
  • Page 8: User Interface

    Display contrast, adjustable 25; 50; 75; 100% Volume Alarm volume, adjustable 25; 50; 75; 100% Alarm Alarm threshold, adjustable in steps of 10 Service Status vales (Battery, USB ...) Sensor Values of the inserted sensor Info Information about the analyzer 8 / 16 Version 01 400GD...
  • Page 9: Operation

     Charge the internal battery for at least 8 hours, ☞ see 5.2. Power up – analyzer without sensor  Press and hold the OK key for at least 3 seconds.  The MRU start screen appears.  You are asked to connect a sensor.  connect the sensor ☞...
  • Page 10: Measuring

    Zerstörung des HC-Sensors durch Überschreiten des Messbereichs. Messbereich des HC-Sensors beachten, nicht überschreiten. Power supply The analyzer is powered by an internal MRU battery. The battery can be charged:  With an optional USB charger (USB port)  With USB cable connected to a PC 5.1.1 Battery status indicator...
  • Page 11  The measured value will change when a leakage is detected, a graph will be recorded, optical and acoustic signals indicate a gas leakage. Measurement with different sensors are based on the same principle. The moisture sensor RM400 has no warm up phase. Version 01 11 / 16 400GD...
  • Page 12: Maintenance And Care

    Maintenance and care Maintenance For accurate reading we suggest an annual service and calibration of the analyzer at a local authorized service location (www.mru.eu). Care This is a low maintenance analyzer:  Charge the battery if the analyzer will not be used for a longer period, then recharge the batteries every 6 months.
  • Page 13: Appendix

    1 ppm Reaction time T90 < 5s Humidity sensor - RM400 Measuring range H 0 - 100% Resolution Future sensors that are not listed here can be activated in the service menu / firmware update. Version 01 13 / 16 400GD...
  • Page 14: Service Menu

    The service menu is for authorized personnel only and is password protected. Firmware update Firmware updates are performed using a SD card, in the extras menu UPDATE – please ask our service department for details. 14 / 16 Version 01 400GD...
  • Page 15: Declaration Of Conformity

    Declaration of conformity Declaration of conformity Version 01 15 / 16 400GD...

Table of Contents