KRAL OMP 13, Operating Instructions Manual, Page: 2 / 48

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