Operation & Installation Manual V12-V6 2010-05-31.doc
31/05/2010
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Table of Content:
Disclaimer (liability) ............................................................................................................... 2
Limited Warranty ................................................................................................................... 2
Table of Content:................................................................................................................... 3
1
General instructions....................................................................................................... 5
1.1
Intended use. ......................................................................................................... 5
1.2
Certification and applicable standards.................................................................... 5
1.3
Information concerning the documentation............................................................. 6
1.3.1.
Important information regarding safety. .......................................................... 6
1.4
Display conventions ............................................................................................... 6
1.5
Safety instructions.................................................................................................. 7
1.1.1.
Transportation and handling ........................................................................... 7
1.5.1.
Explosion safety instructions. ......................................................................... 7
2
Instrument description ................................................................................................... 8
2.1
Measuring principle ................................................................................................ 8
2.1.1.
Transit time measuring principle..................................................................... 8
2.1.2.
Swirl compensation. ....................................................................................... 9
2.1.3.
Multipath ultrasonic flow meters ....................................................................10
2.2
General description. ..............................................................................................11
2.3
Detailed description ..............................................................................................12
2.3.1.
Ultrasonic transducer ....................................................................................12
2.3.2.
ALTOSONIC V12 Meter body .......................................................................13
2.3.3.
ALTOSONIC V12 signal converter ................................................................14
2.3.4.
Signal converter enclosure ............................................................................14
2.3.5.
Main Board Assembly ...................................................................................16
2.4
Software................................................................................................................16
2.4.1.
Configuration file. ..........................................................................................16
2.4.2.
Start up .........................................................................................................17
2.4.3.
The basic transit time measuring process. ....................................................17
2.4.4.
The flow calculation module. .........................................................................18
2.4.5.
The signal output module ..............................................................................19
2.4.6.
Path substitution............................................................................................21
2.4.7.
Write protect lock...........................................................................................21
2.4.8.
Sealing requirements for fiscal Use ...............................................................21
3
Before installation .........................................................................................................22
3.1
Inspection received products.................................................................................22
3.1.1.
Packing and transportation............................................................................22
3.1.2.
Scope of delivery...........................................................................................22
3.1.3.
Name plate....................................................................................................22
3.1.4.
Visual check ..................................................................................................22
3.2
Storage .................................................................................................................22
3.3
Environmental Requirements ................................................................................23
3.4
Installation requirements .......................................................................................24
3.4.1.
Pipe diameters and lengths ...........................................................................24
3.4.2.
Flow conditioners. .........................................................................................24
3.4.3.
Control valves ...............................................................................................24
4
Installation of the ultrasonic gas flow meter ..................................................................25
5
Electrical Installation .....................................................................................................26
5.1
Safety instructions.................................................................................................26
5.2
Electronics enclosure and cable entries ................................................................26
5.3
Electrical connections ...........................................................................................26
5.3.1.
Power connection..........................................................................................26
5.3.2.
Digital I/O connections. .................................................................................27
