Sofraser MIVI - Table of Contents

MIVI Technical Manual
REF: 379/4 3
Table of contents
1. GENERAL PRESENTATION ..........................................................................................................5
1.1 Principle .................................................................................................................... 5
1.2 Various models ....................................................................................................... 5
1.3 Cable wires allocation .......................................................................................... 6
1.4 Directives and Standards .................................................................................... 6
1.4.1 European Pressure Equipment Directive and EMC directive ........... 6
1.4.2 ATEX and IECEx flameproof enclosure certification ............................. 6
1.4.3 FM flameproof enclosure certification ....................................................... 7
1.4.4 ATEX and IEC Ex intrinsic safety certification .......................................... 8
1.4.5 Installation in hazardous area ....................................................................... 9
1.4.6 Other certifications .......................................................................................... 10
2. INSTALLATION .......................................................................................................................... 11
2.1 Checking the equipment after receipt ........................................................ 11
2.2 Sensor installation ............................................................................................... 11
2.2.1 Various mountings and models ................................................................. 12
2.2.2 Elbow mounting .............................................................................................. 12
2.2.3 Plane side mounting ...................................................................................... 13
2.2.4 Mounting on flow cell, for small flow rates or pilot plant .................. 13
2.2.5 Replacement cap and ring ........................................................................... 13
2.2.6 Other mountings ............................................................................................. 13
2.3 Practical advices .................................................................................................. 14
2.3.1 Flow damper ..................................................................................................... 14
2.3.2 Tightness ............................................................................................................. 14
2.3.3 Fluid homogeneity .......................................................................................... 15
2.3.4 It is strongly recommended to carry out the measurement on a
homogenized fluid so that the measurement is representative of the fluid. . 15
2.3.5 Chemical compatibility .................................................................................. 15
2.3.6 Temperature compatibility .......................................................................... 15
2.3.7 Pressure compatibility ................................................................................... 15
2.3.8 Sensor handling ............................................................................................... 15
2.3.9 Mounting screws torque ............................................................................... 17
2.3.10 Grounding and wiring .................................................................................. 17
2.4 Checking the equipment when placed in the process line ................. 17
2.5 Offset adjustment in air .................................................................................... 17
2.6 Refence point ........................................................................................................ 17
3. OPERATION AND CALIBRATION.............................................................................................. 18
3.1 MIVI utilization ...................................................................................................... 18
3.2 Periodic checking ................................................................................................ 18
3.2.1 Modification of the previous calibration .................................................. 18