KROHNE UFM 3030 Service EN - Manual (Page 5)

UFM 3030 5
Table of contents
1 Introduction 6
1.1 Cautions 6
1.2 Unpacking and inspection 6
1.3 System description 6
1.4 Available versions 7
1.5 CE Approvals 7
2 Mechanical installation 8
2.1 Handling the flowmeter 8
2.2 Installation location and position 8
2.3 Special installation requirements 9
2.4 Pipe flanges 10
2.5 Pipes with cathodic protection 11
3 Connecting the signal converter 12
3.1 Safety instructions 12
3.2 Converter terminal box 12
3.3 Power supply connection 12
3.4 Connection of sensor cables (UFM 3030 F only) 13
3.5 Electrical connection of the signal inputs and outputs 14
3.6 Connection diagram examples 16
4 Start-up 17
5 Operating the signal converter 18
5.1 Front panel and operating keys 18
5.2 Menu structure and function of operating keys 19
6 Description of functions 28
6.1 Menu structure 28
7 Functional checks 40
7.1 Test functions of the signal converter Function 2.1 to 2.5 40
7.2 Measuring zero flow value 41
8 Service and Repair 42
8.1 Replacement of electronic unit of signal converter 42
8.2 Replacement of ultrasonic flow sensor in separate systems 42
8.3 Change of power supply fuse 43
8.4 Cleaning 44
8.5 Turning the display circuit board 44
8.6 Turning the signal converter housing 44
9 Returning the flow meter for service or repair 45
10 Dimensions 46
11 Block diagram 46
12 Ultrasonic measurement principle 47
12.1 Transit time differential method 47
12.2 Three beam ultrasonic measurement 47