Instruction Manual Dräger P7-TDX
1
Contents
1. Tips .................................................................................................................................. 4
1.1 Approvals .................................................................................................................... 4
1.2 Tips for use ................................................................................................................. 4
1.3 Tips regarding servicing .............................................................................................. 4
1.4 Tip on disposal according to WEEE ............................................................................ 4
1.5 Instruction manual and measurement data management software ............................ 4
2. The measuring device ...................................................................................................... 5
3. Operation ......................................................................................................................... 6
3.1 Function keys .............................................................................................................. 6
3.1.1 Switching on / off ................................................................................................... 6
3.1.2 Functions of the function keys............................................................................... 6
3.2 Info window and help functions ................................................................................... 7
3.3 Results display ............................................................................................................ 8
3.4 Documentation menu .................................................................................................. 8
4. Selection of the functions ................................................................................................. 8
5. Selecting and entering customer data.............................................................................. 9
6. Checklists / Visual inspection ......................................................................................... 10
7. Pressure measurements ................................................................................................ 10
7.1 Selection of pressure measurements ........................................................................ 10
7.2 Conducting pressure measurements ........................................................................ 11
7.3 Medium pressure measurement with pump function ................................................. 11
7.4 Pressure monitor ....................................................................................................... 12
7.5 Differential pressure (± 2 MPa (20 bar)) .................................................................... 13
8. Manual tightness test ..................................................................................................... 14
8.1 Settings ..................................................................................................................... 14
8.2 Pressure build-up ...................................................................................................... 14
8.3 Stabilization .............................................................................................................. 15
8.4 Measurement ............................................................................................................ 15
8.5 Result ........................................................................................................................ 15
9. Testing gas pipelines ..................................................................................................... 16
9.1 General information .................................................................................................. 16
9.2 Selection of the gas pipeline test .............................................................................. 16
9.3 Assessment of serviceability according to TRGI G 600 and G 5952 ......................... 16
9.3.1 General information regarding leak rate measurement using the MSI P7-TDX .. 17
9.3.2 Preparing the leak rate measurement ................................................................. 17
9.3.3 Stabilization......................................................................................................... 18
9.3.4 Leak rate measurement ...................................................................................... 19
9.4 Tightness tests according to DVGW TRGI 2018 process sheet G 600 ..................... 20
9.4.1 Automatic tightness test ...................................................................................... 20
9.4.2 Tightness test with external pump acc. to DVGW TRGI process sheet G 600 ... 21
9.5 Stress test acc. to DVGW TRGI process sheet G 600 .............................................. 21
9.5.1 Regulations for low pressure systems ................................................................ 21
9.5.2 Regulations for medium pressure systems ......................................................... 22
9.5.3 Starting a stress test ........................................................................................... 22
10. Testing LPG pipelines .................................................................................................. 23
10.1 Tech. Regulations Liquid Gas (German Technische Regeln Flüssiggas - TRF) ..... 23
10.1.1 General information .......................................................................................... 23
