GB
MSA CONTENTS
Series 47K Gas Detector [SIL 2] 3
Contents
1. Safety Regulations .............................................................................................. 6
1.1. Correct Use ................................................................................................ 6
1.2. Liability Information .................................................................................... 6
1.3. Application, Advice and Restrictions .......................................................... 7
2. Description ........................................................................................................... 8
2.1. General ...................................................................................................... 8
2.2. Principle of Operation ................................................................................. 9
2.3. Technical Specification ............................................................................... 9
3. Installation .......................................................................................................... 11
3.1. Installation – Step by Step ........................................................................ 11
3.2. Unpacking ................................................................................................ 11
3.3. General Installation Instructions for Achieving EMC Compliance ............. 11
3.4. Recommended Torque and Terminal Sizes ............................................. 12
3.5. Electrical Connection to the Control Unit .................................................. 13
3.5.1 Junction Box Terminals ................................................................................. 13
3.5.2 Maximum Cable Length ................................................................................ 13
3.6. Electrical Connections .............................................................................. 14
4. Start-up ............................................................................................................... 14
5. Maintenance and Service .................................................................................. 15
5.1. Calibration ................................................................................................ 15
5.1.1 Zero Calibration ............................................................................................. 16
5.1.2 Span Calibration ............................................................................................ 16
5.1.3 Calibration with Accessories ......................................................................... 16
5.2. Sensor Replacement ................................................................................ 17
5.3. Series 47K-PRP and Series 47K-HT-PRP ............................................... 18
5.3.1 47K-HT-PRP .................................................................................................. 19
5.3.2 47K-PRP ........................................................................................................ 19
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