Table Of Contents - Witt MG 50-2ME Instruction Manual

1 Table of contents

1 Table of contents......................................................................................................... 2
2 Notes on this manual .................................................................................................. 4
2.1 What does this manual contain? ......................................................................................................... 4
2.2 Structure of the manual ....................................................................................................................... 4
2.3 Rights to this manual ........................................................................................................................... 5
2.4 What symbols are used? ..................................................................................................................... 5
2.5 Terms (in alphabetical order) .............................................................................................................. 6
3 Safety instructions and precautionary measures .................................................... 8
3.1 General safety instructions .................................................................................................................. 8
3.2 Gas mixer with oxygen ........................................................................................................................ 9
3.3 Liability ................................................................................................................................................. 9
4 Description ................................................................................................................ 10
4.1 Types ................................................................................................................................................ 10
4.2 Applications for the gas mixer ........................................................................................................... 11
4.3 Functional description of the gas mixer ............................................................................................. 11
4.3.1 Technical data on the gas mixer ............................................................................................ 11
4.4 Function of the alarm module ............................................................................................................ 12
4.4.1 Technical data on the alarm module ...................................................................................... 12
4.4.2 The terminal strip (rear) .......................................................................................................... 12
5 Setting up and installation ....................................................................................... 13
5.1 Checking for transport damage ......................................................................................................... 13
5.2 Place for setting up ............................................................................................................................ 13
5.3 Safety instructions for installation ...................................................................................................... 13
5.4 Installation of the pipes ...................................................................................................................... 14
5.5 Electrical installation .......................................................................................................................... 15
5.5.1 Connection of the floating contacts ........................................................................................ 15
6 Commissioning and operation ................................................................................. 16
6.1 Safety instructions for commissioning and operation ........................................................................ 16
6.2 Commissioning the gas mixer ........................................................................................................... 16
6.3 Operating the gas mixer .................................................................................................................... 17
6.3.1 Setting the mixing valve (24) on models MG200 ................................................................... 17
6.4 The alarm module .............................................................................................................................. 18
6.4.1 Buttons and displays .............................................................................................................. 18
6.4.2 Inlet pressure monitoring alarm .............................................................................................. 18
6.5 Malfunctions and rectification ............................................................................................................ 19
6.5.1 Malfunction table .................................................................................................................... 19
6.6 Taking out of operation ...................................................................................................................... 21
6.7 Short interruption in work .................................................................................................................. 21
7 Servicing and maintenance ...................................................................................... 22
7.1 Safety instructions for servicing and maintenance ............................................................................ 22
7.2 Repair instructions ............................................................................................................................. 22
7.3 Checks and servicing tasks ............................................................................................................... 23
7.4 Checking inlet filters for blockages .................................................................................................... 24
7.4.1 Plug filters (for version MG 50, MG 100, MG 200) ................................................................. 24
7.4.2 Screwed filters (for version MG 200, MG 500) ....................................................................... 24
7.5 Functional check on the electrical equipment ................................................................................... 24
7.6 Setting the receiver pressure ............................................................................................................ 24
7.7 Reset of the temperature monitor for the mixed gas temperature (optional) ......................................... 25
WITT-GASETECHNIK GmbH & Co KG
Gas Safety- & Control Equipment
Page 2 of 27
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