mru 400GD User Manual

USER MANUAL

400GD

MRU GmbH, D-74172 Neckarsulm 1 / 20

USER MANUAL

Manufacturer:

400GD

Legal notices / Intellectual property rights comments

Original user manual

© 2019 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.

All user trademarks and name mark descriptions, even those which are not
marked as such, are properties of the respective owners.

Edition: 2019-05-20, V03

2 / 20 MRU GmbH, D-74172 Neckarsulm

USER MANUAL

400GD

Content

1 Introduction ........................................................................................... 4

1.1. Intended usage .................................................................................................... 4

1.2. The company MRU .............................................................................................. 5

2 Security and safety directions for the analyzer .................................. 6

2.1. Safety manual ....................................................................................................... 6

2.2. Safety manual ....................................................................................................... 6

3 Description ............................................................................................. 7

3.1. Purpose ................................................................................................................... 7

3.2. The Analyzer .......................................................................................................... 8

3.3. User interface ........................................................................................................ 8

3.4. Menu structure ..................................................................................................... 9

4 Operation ............................................................................................ 10

4.1. Commissioning ................................................................................................. 10

4.2. Power up – analyzer without sensor .......................................................... 10

4.3. Power down ....................................................................................................... 10

4.4. Auto-off function .............................................................................................. 10

4.5. Reset ...................................................................................................................... 10

5 Measuring............................................................................................ 11

5.1. Power supply ...................................................................................................... 11

5.2. Battery status indicator ................................................................................... 11

5.3. Measurement ..................................................................................................... 11

5.4. Measurement example with the HC-sensor HC400 .............................. 11

5.5. QR-Code ............................................................................................................... 13

6 Maintenance and care ........................................................................ 15

6.1. Maintenance....................................................................................................... 15

6.2. Care ....................................................................................................................... 15

6.3. Care hints for sensors ...................................................................................... 15

7 Appendix ............................................................................................. 16

7.1. Technical data .................................................................................................... 16

7.2. Sensors ................................................................................................................. 16

7.3. Service menu ...................................................................................................... 19

8 Declaration of conformity .................................................................. 20

MRU GmbH, D-74172 Neckarsulm 3 / 20

USER MANUAL

This analyzer meets the requirements of the

400GD

1 Introduction

 This manual is an important part of your delivery. It explains the us-

age and purpose of the MRU Multi-Gas detector 400GD.

 Please read this manual carefully and make yourselves familiar with the

400GD before using it.

 The GD400 may only be used by skilled personnel and may only be

used for its intended purpose.

 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.

1.1. Intended usage

The multi-purpose GD400 is available with different interchangeable sensor
heads and can be used:

 Gas Leak detector to detect gas leaks in an installation area
 Spillage test to locate leaks at flue pipes

The analyzer detects measurement components and displays them.

The instrument was manufactured according relevant norms and regula­tions. It must be used within its intended use.

The analyzer may not be modified from the design or safety engineering.
Modifications of any kind by the user will render the declaration of con-

formity.

valid European and national regulations.
You can find the declaration of conformity in the
appendix.

4 / 20 MRU GmbH, D-74172 Neckarsulm

USER MANUAL

Plant 1: Sales, Service, R&D
Plant 2: Production

400GD

1.2. The company MRU

The 400GD 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

MRU GmbH
Fuchshalde 8 + 12
74172 Neckarsulm - Obereisesheim GERMANY

Phone [phone] (Front office)
Phone [phone] (Service)
Fax [phone]

Email: [e-mail]
Internet: www.mru.eu

MRU GmbH, D-74172 Neckarsulm 5 / 20

USER MANUAL

DANGER

WARNING

CAUTION

ATTENTION

NOTE

Identifies user tips and other especially important infor­mation.

400GD

2 Security and safety directions for the analyzer

2.1. 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.
Instrument-specific safety and warning requirements in this manual are pre­fixed before dangerous actions

2.2. Safety manual

The used categories of safety precautions are here explained once more

Identifies an immediate, impending hazard that, if ignored,
will result in severe bodily injuries or death.

Identifies an immediate, impending hazard that, if ignored,
may result in severe bodily injuries, material damage or
death.

Identifies a possibly dangerous situation that, if ignored,
may result in minor injuries.

Identifies a possibly harmful situation that, if ignored, may re­sult in damages to the device or its surroundings.

6 / 20 MRU GmbH, D-74172 Neckarsulm