Yokogawa digitalYEWFLO (DY) - Manual (Page 2)

TABLE OF CONTENTS
IM 1F2B4-01-YIA
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I. INTRODUCTION ....................................................................................................... 1
1.1
General Overview ............................................................................................. 1
1.2 Principle of Operation ....................................................................................... 1
1.2.1
Vortex shedding .................................................................................... 1
1.2.2 K-factor ................................................................................................ 2
1.2.3 Qmin .................................................................................................... 3
1.2.4 Uniquely vortex .................................................................................... 3
1.2.5 Vortex frequency .................................................................................. 3
1.2.6 Available outputs .................................................................................. 3
1.3 Standard Specifications ..................................................................................... 4
1.4 Basic Sizing ...................................................................................................... 7
1.4.1
Flowmeter sizing .................................................................................. 7
1.5 Model and Suffix Codes ................................................................................... 9
II. QUICK START ......................................................................................................... 22
2.1
Parameter Setting in BRAIN Communications ................................................ 22
2.2 YEWFLO Setup ............................................................................................. 25
2.2.1
Liquid, gas or steam in mass flow units .............................................. 26
2.2.2 Steam flow in energy units ................................................................. 28
2.2.3 Gas volumetric referenced to standard conditions ............................... 30
2.2.4 Liquid, gas, or steam in volumetric units at flowing conditions .......... 32
2.3 Parameter Setting in HART Communications ................................................. 34
2.3.1
Communication Specifications ........................................................... 34
2.3.2 Hardware Recommendations .............................................................. 35
III. INSTALLATION ....................................................................................................... 36
3.1
Piping Requirements ....................................................................................... 36
3.1.1
Pipe schedule ..................................................................................... 37
3.1.2 Flow direction and orientation ............................................................ 37
3.1.3 Pressure and temperature taps ............................................................ 37
3.1.4 Flushing the pipe ................................................................................ 38
3.1.5 Gaskets .............................................................................................. 38
3.2 Installing the Vortex Meter .............................................................................. 38
3.2.1
Installing the wafer style vortex meter ................................................ 38
3.2.2 Installing the wafer style vortex meter horizontally ............................ 39
3.2.3 Installing the wafer style vortex meter vertically ................................ 39
3.2.4 Installing the flanged vortex meter ..................................................... 40
3.2.5 Insulating vortex meters with integral converter ................................. 40
3.2.6 Rotating the meter housing ................................................................. 41
3.2.7 Remote converter terminal box rotation .............................................. 41
3.2.8 Integral converter rotation .................................................................. 41
3.2.9 Installing the remote converter ........................................................... 42
3.3 Wiring ........................................................................................................... 43
3.3.1
Cables and wires (analog or pulse output wires only) ......................... 43
3.3.2 Analog output, 2-wire type (4-20 mADC) ........................................... 43
3.3.3 Pulse output, 3-wire type .................................................................... 44
3.3.4 Interconnection for remote converter .................................................. 45
3.4 Cable ........................................................................................................... 46
3.4.1 Field terminating the signal cable (YF011-0*E) .................................. 46
3.5 Wiring Cautions .............................................................................................. 49
3.5.1
Flameproof transmitter installation ..................................................... 49
3.5.2 Cautions for insulation and dielectric strength testing ......................... 49
3.5.3 Instruction document for FM explosionproof instruments ................... 50
3.5.4 Wiring cautions for CSA intrinsic safety ............................................. 52
3.5.5 Wiring cautions for FM intrinsic safety .............................................. 54