2 OIO 23en Edition 10/2017 Operating Instructions
Table of contents
KRAL Flowmeter – OMP Series
About this document
□General information 3
□Target groups 3
□Symbols 3
□Danger levels 4
□Associated documents 4
Safety
□Proper use 5
□Safety information 5
Identification
□Type code 6
□Rating plate 7
Technical data
□Operating limits 8
▪Load due to pressure pulsation 8
▪Maximum values 8
▪Substitute operating data 9
□Sound pressure level 9
□Heating system 9
▪Trace heating system 9
□Dimensions and weights 10
▪OMP with pipe thread (BSPP thread) 10
▪OMP with DIN flange 11
▪OMP with ANSI flange 12
▪OMP with JIS flange 13
□Load-bearing capacity 14
▪Load-bearing capacity OMP 13 14
▪Load-bearing capacity OMP 20 15
▪Load-bearing capacity OMP 32 16
▪Load-bearing capacity OMP 52 17
Function description
□Description 18
□Rolling bearings 18
□Signal generation 19
□Linearization 19
□Temperature compensation 19
□Flow direction detection 19
□Junction box 19
Transportation, storage and disposal
□Unpacking and checking the state of delivery 20
□Lifting the flowmeter 20
□Storage 20
□Preservation 20
▪Preserving the flowmeter 20
▪Removing the preservation 21
□Disposal 21
Installation, removal and connection
□Safety instructions for installation and removal 22
□Installing the flowmeter 22
▪Installation types 22
▪Preferred installation variant 23
▪Recommendations for alternative installation
variants 23
▪Protect the flowmeter against soiling 24
▪Connecting the flowmeter to the pipe system 24
□Electrical installation 25
▪Safety instructions for electrical installation 25
▪Connection for the pick ups 25
□Removing the flowmeter 25
Operation
□Commissioning 27
▪Cleaning the pipe system 27
▪Checking the function 27
▪Commissioning the flowmeter 27
□Switching off the flowmeter 28
▪Safety instruction for switching off the
flowmeter 28
▪Switching off the flowmeter 28
□Recommissioning the flowmeter 28
Maintenance
□Safety instructions on repairs 29
□Required maintenance 29
□Re-calibration of the flowmeters 29
□Mounting instructions OMP 13 30
▪Removing seals and bearings 31
▪Installing seals and bearings 31
□Mounting instructions OMP 20/32 32
▪Removing seals and bearings 33
▪Installing seals and bearings 33
□Mounting instructions OMP 52 34
▪Removing seals and bearings 35
▪Installing seals and bearings 36
Troubleshooting
□Possible faults 37
□Troubleshooting 37
Appendix
□Spare parts 39
▪Maintenance kits 39
□Accessories 42
▪Junction box 42
▪Mounting the junction box 44
▪Connecting the junction box 45
▪Connecting the extension cable 46
□Tightening torques 47
□Contents of the EC Declaration of Conformity 47
