YOKOGAWA YFA11, YF100 User's Manual

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INSTRUCTION MANUAL

Model YF100 Vortex Flowmeter

(Integral Type, Remote Type)

Model YFA11 Vortex Flow Converter

(Remote Type)

(Style E)

IM 1F2B4-01-YIA

1st Edition, March 1998

Printed in U.S.A.

TABLE OF CONTENTS

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

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TABLE OF CONTENTS

IV. MAINTENANCE ...................................................................................................... 58

4.1 How to ........................................................................................................... 58

4.1.1 Communicating with the YEWFLO remotely ..................................... 59

4.1.2 Adjusting zero and span ..................................................................... 60

4.1.3 Using self-diagnostics ........................................................................ 61

4.1.4 Simulating an output/performing a loop check.................................... 62

4.1.5 Changing the output mode to analog or pulse ..................................... 63

4.1.6 Increasing gas and steam flow measurement accuracy by correcting

for gas expansion ............................................................................... 64

4.1.7 Activating Reynolds number correction.............................................. 65

4.1.8 Activating mismatched pipe schedule (bore) correction ...................... 66

4.1.9 Setting up and resetting the internal totalizer ...................................... 67

4.1.10 Scaling the pulse output ..................................................................... 68

4.1.11 Setting up user defined flow units ...................................................... 69

4.1.12 Setting up the local LCD indicator display mode ................................ 70

4.1.13 Setting the low cut flowrate ................................................................ 71

4.1.14 Trimming the 4-20 mA analog output ................................................. 72

4.1.15 Using the upload/download feature .................................................... 74

4.2 Disassembly and Reassembly.......................................................................... 75

4.2.1 Indicator/Totalizer removal ................................................................ 75

4.2.2 Amplifier replacement ........................................................................ 75

4.3 Vortex Shedder Assembly Removal ................................................................ 76

4.3.1 Removal of shedder from remote converter type................................. 76

4.3.2 Removal of the shedder from integral type ......................................... 77

4.4 Reassembly Cautions ...................................................................................... 78

4.4.1 YEWFLO shedder bolt torque procedures .......................................... 78

4.5 YEWFLO Style "E" Amplifier Calibration Procedure ..................................... 81

4.5.1 General amplifier checkout ................................................................ 82

4.5.2 Analog output test .............................................................................. 82

4.5.3 Pulse output test ................................................................................. 83

V. PARAMETER SETTING/CONFIGURATION ....................................................... 84

5.1 Notes on the TBL optional digital display ....................................................... 84

5.1.1 Display contents in display section ..................................................... 85

VI. TROUBLESHOOTING ............................................................................................ 88

6.1 Error Code Listing .......................................................................................... 88

6.2 Operating Procedures ...................................................................................... 89

6.3 Flow Computation .......................................................................................... 92

6.3.1 Variable definitions ............................................................................ 92

6.3.2 Flow conversion factor ....................................................................... 93

6.4 Signal Conditioning ........................................................................................ 94

6.4.1 YEWFLO Style "E" signal adjustment procedure ............................... 94

6.4.2 Problem solving ................................................................................. 94

6.4.3 Piping checkout procedure ................................................................. 94

6.4.4 Noise balance adjustment ................................................................... 95

6.4.5 Noise judge ........................................................................................ 96

6.4.6 TLA adjustment ................................................................................. 96

6.4.7 Low-cut flowrate adjustment .............................................................. 97

6.4.8 High-frequency filter adjustment ........................................................ 97

6.5 Flowcharts ...................................................................................................... 98

6.5.1 No flowmeter output under flowing conditions................................... 98

6.5.2 Flowmeter output with no flow......................................................... 100

6.5.3 Large flowmeter errors ..................................................................... 101

6.5.4 Output is unstable when flowrate is low ........................................... 102

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TABLE OF CONTENTS

VII. GLOSSARY ......................................................................................................... 103

APPENDIXES:

Appendix A: Parameter Details ............................................................................. 107

Appendix B: HART Parameter Details ................................................................... 115

Appendix C: Customer Maintenance Parts List Appendix D: Dimensional Diagrams

INDEX

IM 1F2B4-01-YIA

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INTRODUCTION

I. INTRODUCTION

1.1 GENERAL OVERVIEW

This manual provides installation, parameter setting, calibration, maintenance and troubleshooting instructions for the YEWFLO Vortex flowmeter. Also included are standard specifications, model code definitions, dimensional drawings and a parts lists.

All YEWFLO’ s are shipped pre-configured for your application. Therefore, if you included correct process conditions with your order, no electronic setup or parameter setting is required. For piping and wiring connections, refer to the Installation section.

If your process conditions have changed since your order was placed, please refer to the ‘ QUICK START’ section which is designed to simplify configuration of the YEWFLO software parameters. Please refer to the index for immediate access to a specific procedure or the glossary located at the end of this manual for further information on a specific term.

If you have any questions concerning the YEWFLO you received, please contact your local Yokogawa Industrial Automation Representative or our headquarters office in Newnan, GA at 770-254-0400.

If you have technical questions regarding the installation, operation, setup or application of a YEWFLO, please contact our Technical Assistance Center (TAC) at 800-524-SERV.

Yokogawa has manufactured this instrument according to rigorous ISO 9000 quality standards. To ensure quality performance we recommend referencing our YEWFLO sizing program to determine the level at which your application should be run as well as a straight meter run of 20 diameters upstream and 5 diameters downstream. In addition to these suggestions, please follow the instructions in this manual carefully.

We are not responsible for any instrument’ s performance, if that instrument has not been properly applied or installed in accordance with this manual, nor can we be responsible for the performance of any instrument which has been modified or repaired by an unauthorized service center.

Note: Existing YEWFLO Style C vortex flowmeters may be upgraded to provide the features and benefits

of the New microprocessor-based Style "E" YEWFLO.

1.2 PRINCIPLE OF OPERATION

1.2.1 Vortex shedding

How many of you have seen a flag flapping in the breeze on a windy day? Everybody has. How many of you have noticed that the flag flaps faster as the wind blows faster? Few haven’ t. When you see a flag flapping in the breeze, you are witnessing the same phenomenon that makes a vortex flowmeter work. The flapping frequency is proportional to the velocity of the wind, and it’ s linear! The flapping is caused by a vortex alternately being created on either side of the flag, and moving downstream with the wind. The vortex is a swirl of low pressure, like a tornado, that pulls the flag in the direction of the vortex. The passing of alternating vortices down the length of the flag causes it to flap. The faster the wind blows, the faster these vortices are created, and the faster the flag flaps. Frequency is proportional to velocity .

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INTRODUCTION

The flapping flag is a familiar example of vortex shedding that everyone should be comfortable with. Here’ s how it’ s used in a vortex flowmeter. A non-streamlined part (bluff body) is inserted in the flow stream, this obstruction in the pipe causes vortices to be alternately created (shed). We call this part the ‘ shedder bar’ . The shedder bar in a YEWFLO performs two functions, it creates the vortices, and with the addition of our piezoelectric crystals senses them too. The crystals generate an alternating voltage waveform whose frequency is proportional to fluid velocity. The rest of the magic is taken care of in the electronics.

Figure 1.2.1: Karman Vortices

1.2.2 K-factor

The most important fact about vortex shedding is that once the physical geometry, (pipe I.D., shedder bar width, etc.), are fixed, the frequency vs. flowrate (K-factor (pulse/gallon)) is unaffected by changes in viscosity, density or pressure over the operating range of the specific application. To determine the operating range use the YEWFLO Sizing program. On the other hand, an orifice plate is directly affected by changes in any of these parameters. There is a very small temperature effect due to expansion or contraction of the shedder bar width, which is easily compensated. Therefore, the Kfactor created in our flow stand (all YEWFLOs are wet flow calibrated) on water, is accurate for gas too! Not so with an orifice plate. The benefit here is simplified calculations, and fewer things that can effect accuracy .

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Figure 1.2.2: Relationship between K-factor and Reynolds Numbers

INTRODUCTION

1.2.3 Qmin

Those of you who haven’ t used many vortex flowmeters may be wondering, ‘ Why do we need to know viscosity, density, pressure and temperature?’ . While the K-factor is unaffected by changes in viscosity, density and pressure, the velocity at which vortices begin to be created and become stable enough to measure accurately will vary. We refer to this velocity as Qmin, stated in desired flow units GPM, SCFH, etc. Here’ s an example to help you understand. Let’ s go back to the flag example. We’ ve all seen the flag flapping in the breeze; however, on some days we can feel the breeze blowing, but the flag isn’ t flapping. Why not? For the flag to flap, there must be enough breeze blowing, or energy, to lift the flag and create fully developed vortices. This is the same thing that happens in the vortex flowmeter.

The higher the fluid viscosity, the higher the velocity (more energy) required to start vortex shedding. On the other hand, the higher the density, the lower the velocity needed to start vortex shedding. In gases, viscosity and density can vary with pressure and temperature. Sounds complicated, but compared to an orifice plate it’ s quite simple. By using the YEWFLO sizing program, vortex meter selection is simple. Simply enter the process conditions, the program will prompt you for them, and presto, a performance table for all meter sizes is generated. This performance table will help you select the best YEWFLO for the application.

1.2.4 Uniquely vortex

Vortex shedding flowmeters measure flow digitally. This means, amplitude of the vortex signal is unimportant. As long as the flow is above the Qmin threshold, only the presence or absence of a vortex is important. Just like digital electronics, as long as the voltage is above or below a threshold value, it is either on or off. Digital flow measurement means no zero drift or span shift . Orifice plate flowmeters, for example, cannot make this claim, even if they are using microprocessor-based digital D/P transmitters, they still measure the small amplitude of deflection caused by differential pressure, and changes in temperature or pressure can shift zero and span.

1.2.5 Vortex frequency

The YEWFLO uses piezoelectric crystals embedded in the shedder bar . Note that they are 1) hermetically sealed, and 2) surrounded by a heavy wall thickness , to protect them from the

environment and the process. The positioning of the crystals is important. Although one crystal primarily measures flow frequency, it unfortunately picks up some pipe vibration noise. The other crystal is positioned such that it picks up primarily the pipe vibration noise. By electronically subtracting these two signals, we are able to obtain a high signal to noise ratio for the flow signal . The new Style "E" body design also improves the signal to noise ratio, by stiffening the shedder bar mounting in the measurement plane, further isolating it from pipe vibration.

1.2.6 Available outputs

After processing the digital vortex frequency as described above, what outputs can you get? You can select either 4-20 mA output or voltage pulse, digital output. Output is selected by setting jumpers on the amplifier board, and the setting the software for pulse or analog output. Analog output is twowire, and pulse output is a three-wire connection (for details see the wiring section). The pulse output can be scaled over a range of 0-6000 Hz, down or up to maximize pulse resolution. Scaling up the frequency output can be done to improve resolution. The pulse output is also capable of driving many electromechanical totalizers directly without additional power.

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INTRODUCTION

1.3 STANDARD SPECIFICATIONS

NOTE: For special applications, please contact your local Yokogawa Industrial Automation representative to

discuss possible enhancements to these standard specifications.

Fluids to be measured: Liquid, gas or steam

Performance specifications:

Repeatability: 0.2% of reading Accuracy and velocity range :

Fluid Accuracy: Pulse Output Accuracy: Analog Output Velocity

Liquid ±0.8% of reading ±0.8% of reading plus up to 32 ft/sec

Gas or ±0.8% of reading ±0.8% of reading plus up to 115 ft/sec Steam ±0.1% of full scale

±1.5% of reading ±1.5% of reading plus from 115 ft/sec

Note: Gas accuracy can be improved to 0.8% over the full range by built-in software compensation. (See

how to section 4.10.)

Output signal:

Analog: 4 to 20 mADC Pulse: Low level 0 to 2 V

High level Vs - 2V ( Vs = input supply voltage) Pulse width 50% duty cycle

±0.1% of full scale

±0.1% of full scale to 262 ft/sec

Ambient temperature limits:

-40º to 175ºF (-40º to 80ºC): standard unit w/o agency approval ratings

-20º to 175ºF (-30º to 80ºC): with optional digital indicator

-40º to 140ºF (-40º to 60ºC): with FM explosion-proof rating

-40º to 120ºF (-40º to 50ºC): with CSA intrinsically safe rating for integral converter

-40º to 175ºF (-40º to 80ºC): with CSA intrinsically safe rating for remote converter

Process temperature limits:

Standard remote converter: -40º to 575ºF (-40º to 300ºC) HPT remote converter: -40º to 755ºF (-40º to 402ºC) Cryogenic remote converter: -320º to 300ºF (-200º to 150ºC) Integral converter: See Figure 1.3.1

Storage temperature limits:

Integral or remote standard unit: -40º to 176ºF (-40º to 80ºC) With integral indicator or totalizer: -22º to 80ºF (-30º to 140ºC)

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INTRODUCTION

Figure 1.3.1: Operating temperature range for integral type converter

Power supply and load resistance:

Analog output: 17 to 42 VDC (see Figure 1.3.2) Pulse output: 14 to 30 VDC

Maximum output wire resistance: 50 ohms Maximum line capacitance: 0.22 microfarad

Ambient humidity limits:

5 to 100% relative humidity

Process pressure limits:

-14.7 psi (full vacuum) to flange rating

Materials of construction: Process wetted parts:

Body: CF8M (ANSI 316 stainless steel) or Hastelloy C (equivalent of

ASTM494, CW12MW)

Shedder bar: Duplex stainless steel (CD4MCU equivalent to ANSI 329 stainless

steel) or Hastelloy C (equivalent of ASTM494, CW12MW)

Non-wetted parts:

Amplifier housing: Aluminum alloy casting Paint: Case - Polyurethane resin baked coating, frosty white

Cover - Polyurethane resin baked coating, deep, sea moss green

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INTRODUCTION

Analog Output :

Figure 1.3.2: Relationship between power supply voltage and load resistance for analog output version

Pulse Output: Pulse output voltage = Vs-2v-∆v

where ∆v = due to external load resistance

Vs = Power Supply Voltage 2v = 2 volts

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Figure 1.3.3: Load resistance vs. pulse output voltage drop

INTRODUCTION

1.4 BASIC SIZING

Measurable Flow Rates in U.S. gpm

Nominal Size

1.4.1 Flowmeter sizing

LIQUID

Nominal Size Minimum and Maximum

Notes: 1) This table assumes standard

conditions of 59ºF (15ºC).

2) Maximum flowrates are based on 32 ft/sec.

3) These figures are approximations. Refer to the Yewflo sizing program for the exact minimum and maximum for your application.

4) The values shown in parenthesis is the minimum linear flowrate.

5) Proper pipe bracing may be required to obtain minimum

mm inch

15 ½ 1.3 -4.2 and 27 25 1 2 -7.3 and 82 40 1½ 5.9 -11.3 and 196 50 2 9.8 -14.5 and 324

80 3 20 and 628 100 4 33 and 1100 150 6 79 and 2400 200 8 150 and 4290 250 10 265 and 6460 300 12 300 and 9260

flowrate.

Table 1.4.1: Water -Flowmeter Range

GAS

Flow Rate Minimum Linear and Maximum Measurable Air Flow Rates in SCFH

(inches) Limits (Standard conditions are 59ºF and 14.7 psia) at process line pressure

0 psig 50 psig 100 psig 150 psig 200 psig 300 psig 400 psig 500 psig

½ min 172 361 500 719 939 1379 1822 2266

max 1700 7492 13302 19128 24967 36692 48454 60266

1 min 400 839 1118 1486 1940 2851 3765 4683

max 5267 23215 41217 59268 77362 113692 150137 186737

1½ min 792 1919 3037 4061 5026 6838 8970 11157

max 1267 55397 98355 141428 184604 271296 358263 445599

2 min 1313 2756 4080 5867 7658 11254 14862 18485

max 20821 91779 162951 234313 305846 449474 593557 738253

3 min 2534 5321 7877 11326 14784 21726 28691 35685

max 40196 177182 314580 452347 590443 867720 1145876 1425214

4 min 4423 10710 16953 22670 28055 38174 50076 62283

max 70157 309249 549061 789516 1030544 1514497 1999984 2487535

6 min 9685 29678 46977 64927 84749 124548 164473 204567

max 153618 677145 1202247 1728757 2256524 3316208 4379250 5446812

8 min 20851 68121 107827 144185 178437 242799 303286 265774

max 274675 1010761 2149664 3091086 4034753 5929510 7830269 9739113

10 min 37370 122437 193804 259153 320716 436397 545115 649056

max 424752 1872295 3324193 4779987 6239253 9169263 12108556 15060351

12 min 53518 175343 277549 371134 459300 624968 780663 929518

max 608291 2681328 4760604 6845457 8935284 13131375 17340759 21568047

Notes: 1) Maximum flowrates are based on 262 ft/sec.

Table 1.4.2: Air-Flowmeter Range

2) These figures are approximations. Refer to the sizing program for the exact minimum and maximum flowrates for your application.

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INTRODUCTION

STEAM

Nominal Size Flow Rate Minimum Linear and Maximum Measurable Saturated Steam Flow Rates in lb/hr

(inches) Limits

15 psig 25 psig 50 psig 75 psig 100 psig 125 psig 150 psig 175 psig 200 psig 250 psig 300 psig

½ min 12.8 14.6 18.4 21.5 24.1 26.5 28.7 30.7 32.6 36.6 43.4

max 122 161 254 346 437 527 616 705 765 973 1154

1 min 29.7 34 42.8 49.9 56.1 61.6 66.6 71.3 75.7 83.7 91.2

max 379 498 788 1071 1353 1632 1910 2185 2464 3014 357

1½ min 58.7 67.3 84.6 98.6 118 137 156 173 191 224 257

max 905 1188 1879 2554 3228 3894 4557 5215 5879 7192 8530

2 min 97.5 111 140 164 184 202 219 234 248 298 354

max 1500 1969 3113 4232 5349 6452 7550 8639 9740 11916 14133

3 min 188 216 271 316 355 390 422 452 480 576 683

max 2895 3800 6010 8170 10326 12455 14576 16678 18804 23004 27283

4 min 328 376 472 551 659 766 869 967 1065 1251 1434

max 5054 6633 10490 14260 18023 21739 25440 29109 32820 40150 47620

6 min 719 824 1184 1515 1827 2122 2407 2681 2951 3467 3974

max 11065 14523 22969 31224 39463 47600 55705 63739 71864 87914 104270

8 min 1549 1885 2720 3477 4193 4872 5525 6153 6773 7958 9122

max 19785 25968 41070 55830 70561 85111 99603 113968 128496 157194 186439

10 min 2725 3387 4888 6249 7536 8756 9930 11060 12174 14304 16396

max 30596 40157 63509 86334 109114 131614 154024 176238 198703 243081 288305

12 min 3903 4851 7000 8949 10793 12539 14220 15839 17434 20485 23481

max 43816 57590 90952 123640 156263 188485 220578 252392 284564 348119 412883

at process line pressure

Table 1.4.3: Steam - Flowmeter Range

Notes: 1) Maximum flowrates are based on 262 ft/sec.

2) These figures are approximations. Refer to the sizing program for the exact minimum and maximum flowrates for your applications.

Nominal Size Internal Diameter Cross Sectional Nominal Pulse Rate Nominal K-factor

(inches) (inches) Area (ft2) (Hz/ft/s) Pulse/US gal Pulse/ft

1½

2 3 4 6

8 10 12

0.57 0.0018 19.1 1423 10645

1.01 0.0056 10.8 259 1940

1.56 0.133 7.05 70.8 530

2.01 0.022 5.59 33.9 253

2.8 0.043 4.02 12.6 94.3

3.69 0.074 3 5.39 40.3

5.46 0.163 2.03 1.67 12.5

7.31 0.291 1.52 0.7 5.24

9.09 0.45 1.23 0.366 2.74

10.9 0.645 1.03 0.213 1.59

Table 1.4.4: Nominal K-factor and general flowmeter information

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YEWFLO

ANSI 600 lb Wafer Flanges

*E VORTEX FLOWMETERS

STAINLESS

WAFER

MODEL

CODE

YF101 0.5" I.D. Stainless Steel Wafer YF102 1.0" I.D. Stainless Steel Wafer YF104 1.5" I.D. Stainless Steel Wafer YF105 2.0" I.D. Stainless Steel Wafer YF108 3.0" I.D. Stainless Steel Wafer YF110 4.0" I.D. Stainless Steel Wafer

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - STAINLESS WAFER

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS (wafer style for mounting between)

ANSI 150 lb Wafer Flanges

B1 B2 ANSI 300 lb Wafer Flanges

A-S3S3*E

Stainless Steel shedder bar & body

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

CERTIFICATION

MATERIALS

CERTIFICATION

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/HPT

/TBL

/EPF

/OSW

/BLT

/SCT

HART communications

High temperature

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

304 SS nuts and bolts

Stainless Steel tags wired into place

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STAINLESS

FLANGED 150#

YEWFLO

*E VORTEX FLOWMETERS

MODEL

CODE

YF101 0.5" I.D. Stainless Steel 150 lb RF flange YF102 1.0" I.D. Stainless Steel 150 lb RF flange YF104 1.5" I.D. Stainless Steel 150 lb RF flange YF105 2.0" I.D. Stainless Steel 150 lb RF flange YF108 3.0" I.D. Stainless Steel 150 lb RF flange YF110 4.0" I.D. Stainless Steel 150 lb RF flange YF115 6.0" I.D. Stainless Steel 150 lb RF flange YF120 8.0" I.D. Stainless Steel 150 lb RF flange YF125 10.0" I.D. Stainless Steel 150 lb RF flange YF130 12.0" I.D. Stainless Steel 150 lb RF flange

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - STAINLESS 150# FLANGE

CONFIGURATION

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS

ANSI 150 lb RF flanges

A-S3S3*E

Stainless Steel shedder bar & body

/FMF

FM explosionproof housing w/FM stamp /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

/HART

/HPT

/TBL

/EPF

/OSW

/SCT

MATERIALS

CERTIFICATION

OPTIONS

HART communications

High temperature

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

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YEWFLO

*E VORTEX FLOWMETERS

STAINLESS

FLANGED 300#

MODEL

CODE

YF101 0.5" I.D. Stainless Steel 300 lb RF flange YF102 1.0" I.D. Stainless Steel 300 lb RF flange YF104 1.5" I.D. Stainless Steel 300 lb RF flange YF105 2.0" I.D. Stainless Steel 300 lb RF flange YF108 3.0" I.D. Stainless Steel 300 lb RF flange YF110 4.0" I.D. Stainless Steel 300 lb RF flange YF115 6.0" I.D. Stainless Steel 300 lb RF flange YF120 8.0" I.D. Stainless Steel 300 lb RF flange YF125 10.0" I.D. Stainless Steel 300 lb RF flange YF130 12.0" I.D. Stainless Steel 300 lb RF flange

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - STAINLESS 300# FLANGE

CONFIGURATION

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS

ANSI 300 lb RF flanges

A-S3S3*E

Stainless Steel shedder bar & body

/FMF

FM explosionproof housing w/FM stamp /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

/HART

/HPT

/TBL

/EPF

/OSW

/SCT

MATERIALS

CERTIFICATION

OPTIONS

HART communications

High temperature

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

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STAINLESS

FLANGED 600#

YEWFLO

*E VORTEX FLOWMETERS

MODEL

CODE

YF101 0.5" I.D. Stainless Steel 600 lb RF flange YF102 1.0" I.D. Stainless Steel 600 lb RF flange YF104 1.5" I.D. Stainless Steel 600 lb RF flange YF105 2.0" I.D. Stainless Steel 600 lb RF flange YF108 3.0" I.D. Stainless Steel 600 lb RF flange YF110 4.0" I.D. Stainless Steel 600 lb RF flange YF115 6.0" I.D. Stainless Steel 600 lb RF flange YF120 8.0" I.D. Stainless Steel 600 lb RF flange

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - STAINLESS 600# FLANGE

CONFIGURATION

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS

ANSI 600 lb RF flanges

A-S3S3*E

Stainless Steel shedder bar & body

/FMF

FM explosionproof housing w/FM stamp /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

/HART

/HPT

/TBL

/EPF

/OSW

/SCT

MATERIALS

CERTIFICATION

OPTIONS

HART communications

High temperature

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA Page 12

YEWFLO

ANSI 600 lb RF flanges

*E VORTEX FLOWMETERS

HASTELLOY C

WAFER

MODEL

CODE

YF101 0.5" I.D. Hastelloy C Wafer YF102 1.0" I.D. Hastelloy C Wafer YF104 1.5" I.D. Hastelloy C Wafer YF105 2.0" I.D. Hastelloy C Wafer YF108 3.0" I.D. Hastelloy C Wafer YF110 4.0" I.D. Hastelloy C Wafer

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - HASTELLOY C WAFER

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS (wafer style for mounting between)

ANSI 150 lb RF flanges

B1 B2 ANSI 300 lb RF flanges

A-HCHC*E

CERTIFICATION

MATERIALS

Hastelloy C Shedder wetted parts

CERTIFICATION

FM explosionproof housing w/FM stamp

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA

Page 13

HASTELLOY C FLANGED 150#

YEWFLO

*E VORTEX FLOWMETERS

MODEL

CODE

YF101 0.5" I.D. Hastelloy C 150 lb RF flange YF102 1.0" I.D. Hastelloy C 150 lb RF flange YF104 1.5" I.D. Hastelloy C 150 lb RF flange YF105 2.0" I.D. Hastelloy C 150 lb RF flange YF108 3.0" I.D. Hastelloy C 150 lb RF flange YF110 4.0" I.D. Hastelloy C 150 lb RF flange YF115 6.0" I.D. Hastelloy C 150 lb RF flange

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - HASTELLOY C 150# FLANGE

CERTIFICATION

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS (wafer style for mounting between)

ANSI 150 lb RF flanges

A-HCHC*E

Hastelloy C Shedder wetted parts

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

MATERIALS

CERTIFICATION

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA Page 14

YEWFLO

*E VORTEX FLOWMETERS

HASTELLOY C FLANGED 300#

MODEL

CODE

YF101 0.5" I.D. Hastelloy C 300 lb RF flange YF102 1.0" I.D. Hastelloy C 300 lb RF flange YF104 1.5" I.D. Hastelloy C 300 lb RF flange YF105 2.0" I.D. Hastelloy C 300 lb RF flange YF108 3.0" I.D. Hastelloy C 300 lb RF flange YF110 4.0" I.D. Hastelloy C 300 lb RF flange YF115 6.0" I.D. Hastelloy C 300 lb RF flange

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

YEWFLO *E - HASTELLOY C 300# FLANGE

CERTIFICATION

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS (wafer style for mounting between)

ANSI 300 lb RF flanges

A-HCHC*E

Hastelloy C wetted parts

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

MATERIALS

CERTIFICATION

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA

Page 15

NACE MTLS

ANSI 600 lb RF flanges

WAFER

MODEL

CODE

YF101 YF102 1.0" I.D. NACE Wafer YF104 1.5" I.D. NACE Wafer YF105 2.0" I.D. NACE Wafer YF108 3.0" I.D. NACE Wafer

*E VORTEX FLOWMETERS

YEWFLO *E - NACE MATERIALS WAFER

METER SIZES

0.5" I.D. NACE Wafer

CERTIFICATION

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS (wafer style for mounting between)

ANSI 150 lb RF flanges

B1 B2 ANSI 300 lb RF flanges

YEWFLO

A-HCS3*E

MATERIALS

Hastelloy C shedder bar w/stainless steel body

CERTIFICATION

FM explosionproof housing w/FM stamp

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA Page 16

YEWFLO

*E VORTEX FLOWMETERS

NACE MTLS

FLANGED 150#

MODEL

CODE

YF101 0.5" I.D. NACE 150 lb RF Flange YF102 1.0" I.D. NACE 150 lb RF Flange YF104 1.5" I.D. NACE 150 lb RF Flange YF105 2.0" I.D. NACE 150 lb RF Flange YF108 3.0" I.D. NACE 150 lb RF Flange

YEWFLO *E - NACE MATERIALS 150# FLANGE

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS

ANSI 150 lb RF flanges

A-HCS3*E

Hastelloy C shedder bar w/stainless steel body

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

CERTIFICATION

MATERIALS

CERTIFICATION

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA

Page 17

NACE MTLS

FLANGED 300#

YEWFLO

*E VORTEX FLOWMETERS

MODEL

CODE

YF101 0.5" I.D. NACE 300 lb RF Flange YF102 1.0" I.D. NACE 300 lb RF Flange YF104 1.5" I.D. NACE 300 lb RF Flange YF105 2.0" I.D. NACE 300 lb RF Flange YF108 3.0" I.D. NACE 300 lb RF Flange

YEWFLO *E - NACE MATERIALS 300# FLANGE

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS

ANSI 300 lb RF flanges

A-HCS3*E

Hastelloy C shedder bar w/stainless steel body

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

CERTIFICATION

MATERIALS

CERTIFICATION

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA Page 18

YEWFLO

*E VORTEX FLOWMETERS

NACE MTLS

FLANGED 600#

MODEL

CODE

YF101 0.5" I.D. NACE 600 lb RF Flange YF102 1.0" I.D. NACE 600 lb RF Flange YF104 1.5" I.D. NACE 600 lb RF Flange YF105 2.0" I.D. NACE 600 lb RF Flange YF108 3.0" I.D. NACE 600 lb RF Flange

YEWFLO *E - NACE MATERIALS 600# FLANGE

-AAU

-AAD Integral, 4-20 mA for intrinsic safety

-AAR Integral, pulse output for intrinsic safety

-NNN Remote converter

Integral , 4-20 mA or pulse

PROCESS CONNECTIONS

ANSI 600 lb RF flanges

A-HCS3*E

Hastelloy C shedder bar w/stainless steel body

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

CERTIFICATION

MATERIALS

CERTIFICATION

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/TBL

/EPF

/OSW

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Oxygen cleaning

Stainless Steel tags wired into place

IM 1F2B4-01-YIA

Page 19

REMOTE

CONVERTER

YEWFLO

*E VORTEX FLOWMETERS

MODEL

CODE

YFA11 Remote Converter

-AUPA

-ADPA 4-20 mA for intrinsic safety

-ARPA Pulse output for intrinsic safety

YEWFLO *E - REMOTE CONVERTER

4-20 mA or pulse output

-01*E 0.5" body

-02*E 1.0" body

-04*E 1.5" body

-05*E 2.0" body

-08*E 3.0" body

-10*E 4.0" body

-15*E 6.0" body

-20*E 8.0" body

-25*E 10.0" body

-30*E 12.0" body

CONFIGURATION

METER SIZES

CERTIFICATION

/FMF /FMS FM intrinsic safety w/FM stamp /CSF CSA explosionproof housing w/CSA stamp /CSS CSA intrinsic safety w/CSA stamp

FM explosionproof housing w/FM stamp

OPTIONS

/HART

/TBL

/EPF

/SCT

HART communications

Local interface

Epoxy-coated electronics housing

Stainless Steel tags wired into place

Additional cable, per foot

IM 1F2B4-01-YIA Page 20

YEWFLO

*E VORTEX FLOWMETERS

CABLE TYPE, *E

YF011 Remote meter interconnecting cable

CONFIGURATION

-1

Terminated ends

-0010F

-0015F 15 feet

-0030F 30 feet

-0050F 50 feet

-0065F 65 feet

METER SIZES

10 feet

CERTIFICATION

*E Style E

PARTS

METERS

CABLE

IM 1F2B4-01-YIA

Page 21

QUICK START USING THE BT100/200

II. QUICK START

BT100/BT200 HANDHELD TERMINAL

Note: If you specified the correct process conditions on your order, these parameters have been preset at the

factory; therefore, there is no need to re-enter the data.

The Style E YEWFLO is a smart communicating device with microprocessor-based technology. When used with Yokogawa’ s BT100 or BT200 handheld terminal (HHT), YEWFLO can be configured to meet specific application needs. In addition, the optional local indicator/totalizer (TBL option) allows setting of various parameters.

When in the analog output mode, the HHT may be connected at any point on the instrument's 4-20 mA loop. This connection superimposes a digital signal on top of the instrument’ s 4-20 mA signal making communications completely transparent to your process signal. On the other hand, since there are no 4-20 mA wires in the pulse mode, direct connection of the HHT to the HHT PULSE and HHT COM test points on the amplifier is necessary. Once connected, flowrate and total can be read, tag numbers entered, meter size or any other parameter modified as required. Additionally, you may activate or deactivate many features of the YEWFLO as necessary to meet the requirements of your application.

The HHT will enable you to scroll through the program until you locate the parameter that you wish to change. For communication information, see “How to communicate with the YEWFLO remotely” in the maintenance section. Please refer to the appropriate HHT instruction manual for details on each HHT.

To change a parameter using the BT100, insert the removable key in the lock and turn it clockwise

to the ENABLE position. If the key is not in place or if it is in the INHIBIT position, you will receive an OPERATION ERR message on the display when you press either the I NC or DE C key or try to enter

an alphanumeric value in any parameter. If this occurs, insert the key in the lock, turn it clockwise to

the ENABLE position then press either the I N C , DE C or alphanumeric key as before.

2.1 PARAMETER SETTING IN BRAIN™ COMMUNICATIONS

The Model YF100*E Vortex flowmeter incorporates BRAIN™ communication functions. These functions enable the Vortex converter to remotely carry out the following functions by communicating with the BRAIN™ Terminal (BT100 or BT200), µXL, or Centum-XL distributed control systems.

• Setting or changing parameters required for vortex meter operation such as tag number, flow span and process conditions for example.

• Monitoring flowrate, totalized flow and self-diagnostics.

• 4-20 mA loop check (simulated output) and totalizer reset.

Note: When the pulse/analog jumpers are set for a pulse output, Remote BRAIN™ communication on the

4-20 mA wires is not available. Therefore parameters cannot be set or read remotely. For the BT100 to operate in the pulse output mode, the instrument must be connected to the test points labeled HHT

Pulse and HHT Com. This allows access to all parameters.

Note: Only the position of the jumpers affects remote communication ability, the software setting of pulse or

4-20 mA has no effect.

IM 1F2B4-01-YIA Page 22

QUICK START USING THE BT100/200

BT100 Basic Operation

1) POWER on.

2) First three key strokes will always display “Model No.” , Tag No.”, and “Self-check” .

3) Press ME N U key to select desired main menu.

4) Press P MT R key to move down through the selected menu.

5) Once a parameter has been selected, use the I NC or D E C keys to review options within the parameter list. When data input is required, use the al pha key to toggl e between the al pha an d n umeri c character s (A to Z, 0 to 9).

6) Once a parameter has been selected, push E NT twice to save the changes.

Notes: A ) Use the AL P H A key to move between al pha a n d n umeri c char acter s.

B) To back up i n t he pr ogr ammi n g sequen ce, push H key an d then P MT R when i n par amet er

mode or ME N U when i n mai n men u mode.

C) UP L D and DN L D keys permit copying settings from one instrument in BT100 non-volatile

memory to another instrument.

D) The automatic power-off of the BT100 automatically turns off the power when no key has been

pressed for about 5 minutes. This function is not active during the display A10: Flowrate %, A20: Flowr ate, or A30: Total. The display of these values is updated every 5 seconds.

IM 1F2B4-01-YIA

Page 23

QUICK START USING THE BT100/200

BT200 Ba si c Operati on

1) Pr ess ON/OFF to acti vate power .

2) Pr ess E N T E R key when pr ompt ed.

3) “Model ”, “Tag N o.”, an d “Sel f-check” wi l l al ways be di splayed n ex t.

4) Pr ess F 4 to conti n ue. The mai n men u l i st wi l l be di splayed n ex t.

5) Hi ghl ight the desi red men u b y usi n g the up an d down movemen t ke ys. P r ess E NT E R to access the sel ected men u.

6) Use the up an d down movemen t ke ys to hi ghl i ght the desi red parameter an d pr ess E NT E R to access.

7) On ce a parameter has been sel ect ed ei ther: a) Use the up an d down movemen t ke ys to r evi ew opti on s wi thi n t he par ameter . On ce the

appr opri ate opti on has b een sel ected, press E NT E R twice to edi t the sel ecti on .

b) Wher e data i n put i s requi r ed, use the al pha key to toggl e between t he al pha an d n umer i c

character s. Pr ess E NT E R twice to save the chan ges.

N otes: A ) The fun cti on keys (F 1 -F 4 ) ar e used to ex ecute the comman d s di s pl ayed at the bottom of the

scre e n .

B) Use the left (<) and right (>) movement keys to change whole page of displayed information. The

“ <“ key shows the preceding page and the “ >“ key the following page.

C) To select a desired alpha character, always use the appropriate S HI F T key. Use the green

shift key to select letters marked in green and the black shift key to select letters marked in black.

If the alpha/numeric keys are not used in conjunction with the S HI F T key, the numeric value

shown on the key will be displayed.

D) To go directly to a particular parameter anywhere in the menu tree while working in a menu, press

either S HI F T key and then press F 4 . Type the parameter designation (example B24) to be displayed and press E NT E R .

IM 1F2B4-01-YIA Page 24

QUICK START USING THE BT100/200

2.2 YEWFLO SETUP

Note: If you specified the correct process conditions on your order, these parameters have been preset at the

factory; therefore, there is no need to re-enter the data.

The purpose of a Quick Start is to address only those parameters which must be set to establish the operation of a meter for this application. Follow the parameters listed below and enter the data for your particular application.

With the BT100 or BT200 properly connected to the Vortex meter begin communicating by pressing

the power button. After the power up sequence is complete, go to “ Menu B: SET 1” . The operation of

the BT100 and BT200 are slightly different. Please refer to the ‘ Basic Handheld Terminal Operation’ if you are unfamiliar with how to move through the menus and parameters. The following flow chart identifies only the parameters to be set, you may have to skip several parameters or menus to get to the parameters shown below. Be sure to enter all values and selections shown below or they will

not be saved. If you make a typing error, use the CL R key to clear and re-enter.

IM 1F2B4-01-YIA

Page 25

QUICK START USING THE BT100/200

2.3 PARAMETER SETTING IN HART™ COMMUNICATIONS

When specified, the model YF100*E vortex flowmeter can be provided with HART™ communication functions. (To determine if this field communication protocol has been incorporated in your instrument, confirm the “HART” suffix is a part of the YEWFLO model code.) These functions enable the vortex converter to remotely carry out the following by communicating with the HART communicator:

· Setting or changing parameters required for vortex meter operation such as tag number, flow span and process conditions.

· Monitoring flowrate, totalized flow and self-diagnostics.

· 4-20 mA loop check (simulated output) and totalizer rest

The HART communicator can interface with YEWFLO from the control room, via direct connection to the amplifier, or any other wiring termination point on the 4-20 mA loop. Polarity does not matter. There must be a minimum of 250 ohms between the connection and the power supply. Refer to Figure 1.3.2 on page 7 for power supply voltage requirements and load resistance.

Note1: The output jumpers on the amplifier must be set to the analog position to communicate. Only the

position of the jumpers affects remote communication ability, the software setting of pulse or 4-20 mA has no effect.

Note2: When Yewflo is supplied with the HART option, the TBL digital display/local operator interface

cannot be used for parameter setting and configuration. Only two parameters are supported by the TBL:

Parameter E01: Total reset Parameter E02: Display Select

The amplifier has been pre-configured at the factory, so no setup should be required prior to installation. If your process conditions have changed and reprogramming is required, the menu/ parameter configuration list for YEWFLO/HART can be found in Appendix B in the back of this manual. Refer to the instructions provided with your HART communicator or operation details. The QUICK START section of this manual will address only those parameters which must be set to establish the operation of the meter for a particular application. Appendix B will cross-reference the BRAIN parameters to the corresponding HART parameters.

2.3.1 Communication Specifications

Method of communication: Frequency shift keying (FSK). Conforms with Bell 202 Modem standard with respect to baud rate and digital “ 1” and “ 0” frequencies.

Baud Rate: 1,200 bps

Digital “0” Frequency: 2,200 Hz

Digital “1” Frequency: 1,200 Hz

Data Byte Structure: 1 start bit, 8 data bits, 1 odd parity bit, 1 stop bit

IM 1F2B4-01-YIA Page 34

QUICK START USING THE BT100/200

Single Digital Process Variable Rate:

Poll/Response Mode: 2.0 per second Burst Mode: 3.7 per second

Maximum Number of Multi-drop Devices:

Loop Powered: 15

Multivariable Specification:

Maximum process variable per smart device: 256

Maximum Number of Communication Masters: Two

2.3.2 Hardware Recommendations:

Supply Voltage: 17-42 VDC

Load Resistance: 250 to 600 ohms (includes cable resistance)

Refer to Figure 1.3.2 on page 7 for power supply voltage requirements and load resistance.

Minimum cable size: 24 AWG, (0.51 mm diameter)

Cable Type: Single pair shielded or multiple pair with

overall shield

Maximum Twisted-Pair Length: 10,000 ft. (3,048 m)

Maximum Multiple Twisted-Pair Length: 5,000 ft (1,524 m)

Use the following formula to determine cable length for a specific application:

L = 65 x 106 (R x C) C

where:

- (Cr + 10,000)

L = length in feet or meters R = resistance in ohms (current sense resistance plus barrier resistance) C = cable capacitance in pF/ft or pF/m Cf = maximum shunt capacitance of field device in pF

IM 1F2B4-01-YIA

Page 35

INSTALLATION

III. INSTALLATION

Before installing your YEWFLO you will need to gather the following tools:

Wafer Style:

1. Gaskets - self-centering preferred. In no case should the I.D. of the gaskets be smaller than the I.D. of the meter.

2. Wrenches - Two of a size appropriate for the nuts supplied.

3. Screw driver - A small Phillips or flat blade type may be used to connect lead wires.

4. Sufficient wire to reach from the meter signal converter to the power source, receiving device. See the Wiring Section of this manual for wire recommendations.

5. Stud bolts, washers and nuts are supplied with the meter

Flanged Style:

1. Nuts, bolts and washers appropriate in type, size, material and quantity for the flange as specified by ANSI standards.

2. Gaskets - self-centering preferred. In no case should the I.D. of the gaskets be smaller than the I.D. of the meter.

3. Wrenches - Two of a size appropriate for the nuts supplied.

4. Screw driver - A small Phillips or flat blade type may be used to connect lead wires.

5. Sufficient wire to reach from the meter signal converter to the power source, receiving device. See the Wiring Section of this manual for wire recommendations.

3.1 PIPING REQUIREMENTS

To obtain maximum performance, the vortex flowmeter should be installed in a pipe with a straight run the same size as the nominal size of the meter. On the upstream side, the straight run depends on what is in the pipe ahead of the meter. In most installations a maximum of 20 diameters will be sufficient. The pipe on the downstream side of the meter should always be at least 5 diameters. The combination of flowmeter with upstream and downstream pipe is referred to as the metering run. Refer to the following illustrations for the minimum straight pipe for your installation. Note that in all installations the mating pipe on either side of the vortex meter must match the meter size. In many applications proper sizing may recommend using one meter size smaller than the existing pipe. When this is the case, concentric reducers should not be directly attached to the flowmeter, but installed on either end of the metering run as shown. In any case, the guidelines for orifice plate installations as published by the ASME will be safe to follow.

IDEAL

Figure 3.1.1: YEWFLO upstream side of valve

IM 1F2B4-01-YIA Page 36

INSTALLATION

ACCEPTABLE

Figure 3.1.2: Reducer, expander, elbow and valve

If the meter cannot be located in the piping where the minimum straight run requirements can be met, it may be possible to install flow conditioning equipment upstream of the vortex meter and reduce the upstream piping without significantly reducing the accuracy. Contact your local representative or Yokogawa Industrial Automation for recommendations regarding flow conditioners.

3.1.1 Pipe schedule

We recommend pipe schedule 40 for ½" through 2" meter sizes. For meters larger than 2", use schedule 80 pipe or smaller. If pipe schedule other than above is used, please refer to Parameter D05 to correct errors due to mismatched pipe schedule.

3.1.2 Flow direction and orientation

Before installing the vortex meter verify the arrow on the meter body is facing the same direction as the direction of the flow. The direction of flow can be determined by the arrow on the

shedder bar or clamping plate. The meter may be installed with the converter located above, below or to the side of the piping, whatever suits the selected installation location best. Flow may be horizontal or vertical, as long as the pipe is completely full. For liquid applications vertical flow up is preferred, as this guarantees a full pipe at all times.

3.1.3 Pressure and temperature taps

If you are metering a gas where pressure and temperature compensation is required, pressure and temperature taps must be located downstream of the vortex meter. See Figure 3.1.3.

Figure 3.1.3: Pressure and Temperature taps

IM 1F2B4-01-YIA

Page 37

INSTALLATION

3.1.4 Flushing the pipe

On a new installation we recommend flushing the pipeline and removing any and all scales on the inside of the pipe before installing the vortex meter. The bypass piping should be installed around the vortex meter to facilitate pipe cleaning. When there is no bypass piping, the vortex meter should be temporarily removed and a spool piece installed in its place.

3.1.5 Gaskets

The ID of the gaskets must be equal to or larger than the ID of the meter and mating pipe. The gaskets should be the self-centering type. It is important that the gaskets not protrude into the flow stream, otherwise accuracy will be adversely affected.

Figure 3.1.4: Gasket cross section Figure 3.1.5: Typical gasket with bolt holes

3.2 INSTALLING THE VORTEX METER

Before installing the vortex meter, verify the arrow on the meter body is facing the same direction as the direction of the flow.

3.2.1 Installing the wafer style vortex meter

When installing the wafer type vortex meter it is important to align the instrument bore with the inner diameter of the adjacent piping. For meters in sizes ½" through 3", four alignment collars are supplied. These collars establish a predetermined spacing between the mounting bolts and the outside diameter of the vortex meter body. The bolts must be of the proper diameter to establish alignment. Carbon steel stud bolts and nuts are supplied as standard. Stainless steel (304) stud bolts and nuts are optional. Gaskets are supplied by the user. Check all mating flanges ensuring all weld slag is ground off and the inside surface is clean and smooth.

IM 1F2B4-01-YIA Page 38

INSTALLATION

Meter Flange Collar Kit Mark on

Size Rating (4 per set) collar

0.5" 150# F9322GC GL

0.5" 300#, 600# F9322GD GM

1.0" 150# F9322HC HL

1.0" 300#, 600# F9322GA GJ

1.5" 150# F9322GC GL

1.5" 300#, 600# F9322JD JM

2.0" 150# F9322KA KC

3.0" 150# F9322KM KP

Table 3.2.1: Dimensions

Note: Only the above indicated meter sizes require collars

3.2.2 Installing the wafer style vortex meter horizontally

1) Insert two collars (see dimensions table above) on each of the two lower bolts.

2) Place the vortex meter on the collars located on the lower two bolts making sure the arrow on the side of the meter body is facing in the same direction as the flow.

3) Insert the remaining bolts and tighten all bolts and nuts uniformly.

4) Check for leakage between the meter body and the flanges.

Figure 3.2.1: Wafer type - horizontal installation

3.2.3 Installing the wafer style vortex meter vertically

1) Insert one collar (if required, see table 3.2.1) on each bolt, being certain that the collars are in contact with the outside diameter of the vortex meter body. Make sure the arrow on the side of the meter body is facing the same direction as the flow.

2) Tighten all bolts uniformly.

3) Check for leakage between the meter body and the flanges.

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CAUTION:

When installing the vortex meter in a vertical pipe

outdoors we recommend rotating the conduit connection to face downward reducing the chance of rain and condensate running down the conduit into the housing.

Fig 3.2.2: Wafer type - vertical installation

3.2.4 Installing the flanged vortex meter

Use bolts, nuts and gaskets in accordance with ANSI B16.5 (user supplied). The ID of the gasket must be equal to or greater than the ID of the meter bore. Self-centering gaskets are highly recommended.

Figure 3.2.3: Flanged type - horizontal installation Figure 3.2.4: Flanged type - vertical installation

3.2.5 Insulating vortex meters with integral converter

When installing a vortex meter with an integral converter in a pipe to measure high temperature fluids, do not insulate the converter housing or mounting bracket. If it is necessary to insulate the entire installation, use a remote mounted converter. Custom steam jackets are available if necessary, please contact your Yokogawa Industrial Automation Representative for more information.

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3.2.6 Rotating the meter housing

The terminal box or converter housing may be rotated in 90º increments with respect to the pipe for viewing or wiring convenience.

3.2.7 Remote converter terminal box rotation

1) Turn the power off.

2) Remove the terminal box cover.

3) Disconnect the lead wires from the sensor, Red (A) and White (B).

4) For 1" through 4" meter sizes, remove the bracket mounting bolts and the terminal box from the meter body. Remove the four Allen bolts securing the terminal box to the bracket, rotate to the desired position and reassemble.

5) On larger meters remove the 4 hex bolts securing the terminal box, rotate to the desired position and reassemble.

3.2.8 Integral converter rotation

1) Turn the power off.

2) Remove the converter cover.

3) Remove the amplifier.

4) Disconnect the wires from the sensor, Red (A) and White (B).

5) For 1" through 4" meter sizes, remove the bracket mounting bolts and the amplifier housing

6) On larger meters remove the 4 hex bolts securing the amplifier housing, rotate to the desired

Figure 3.2.5: Changing the terminal box orientation

from the meter body. Remove the four Allen bolts securing the housing to the bracket, rotate to the desired position and reassemble.

position and reassemble.

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Figure 3.2.6: Changing the converter orientation

3.2.9 Installing the remote converter

A special signal cable (YF011) must

be used between the vortex meter body and the remote

electronics. The maximum cable length is 65 feet (20 meters). Do not splice additional cable to extend the length. The converter may mounted on 2" nominal pipe stand (horizontal or vertical) using the supplied mounting bracket. The converter orientation may be rotated in 90º increments if necessary to simplify wiring or viewing. To shorten the cable in the field please refer to the section on cable.

Figure 3.2.7: Converter installation Figure 3.2.8: Converter installation vertical pipe mounting horizontal pipe mounting

Note: If there is a local indicator (option /TBL) included on the remote amplifier, its display may be rotated

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in 90º increments to facilitate reading the display.

INSTALLATION

3.3 WIRING

3.3.1 Cables and wires (analog or pulse output wires only)

The following recommendations should be considered when selecting output wire for YEWFLO, and installing it in the field.

1) Use 600 V PVC insulated wire or equivalent.

2) Use shielded wire in areas susceptible to electrical noise.

3) Use wire and cable suitable for the ambient environment, especially temperature and

4) Lay wires as far as possible from electrical noise sources such as large transformers, motors,

5) When wiring in a vertical position, a drip loop with a drain should be installed in the conduit

6) We recommend using crimp-on solderless type lugs for the output wire termination.

7) For industrial installations, we recommend using conduit or cable tray to protect wiring from

8) Safety grounding should meet National Electrical Code Class 3 requirements (resistance to

3.3.2 Analog output, 2-wire type (4-20 mADC)

When configured for analog output, the two instrument output wires also provide power. A DC power supply (user supplied) is required in the loop. The power supply voltage required is determined by the total instrument loop resistance including output wires. The permissible resistance versus required power supply voltage is shown in figures 3.3.1 and 3.3.2.

chemical compatibility.

and power supplies.

so that water does not run down the wire and into the converter housing.

water or mechanical damage. A rigid steel conduit or flexible metal conduit is acceptable.

ground of 100 ohms or less). Ground wires should be 600 V PVC insulated wire.

Note: The field chassis ground and minus (-) power supply terminal are isolated from each other and should

not be connected.

Figure 3.3.1: Wiring Connections (Analog) Remote Converter

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Figure 3.3.2: Wiring Connections (Analog) Integral Converter

3.3.3 Pulse output, 3-wire type

When configured for pulse output mode, the converter requires three wires between the converter and the power supply. The required power should be between 18 and 30 VDC (allowable ripple +1.5 V or less). The pulse output (P terminal) is connected to a remote totalizer. The minimum load resistance of the pulse output loop is 10k ohms (maximum capacitance 0.22F, 0.1F for output frequency above 2.5 kHz), and interconnection wire resistance must be less than 50 ohms.

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Figure 3.3.3: Wiring Connections (Pulse) - Remote Converter Type

INSTALLATION

Figure 3.3.4: Wiring Connections (Pulse) - Integral Type

3.3.4 Interconnection for remote converter

When the converter is remotely mounted from the meter body, a special signal cable (YFO11) must be used. The maximum length of this cable is 65 feet (20 meters). The signal cable transmits a low level sensor signal from the remote flowmeter to the remote converter. The remote converter provides the output signals as described above. The remote signal wire connections are the same for either Analog or Pulse output units. The A, B and C terminals on the flowmeter are connected via the red, white and black wires (respectively) to the A, B and C terminals on the converter. The blue wire is connected on the converter end only to chassis ground. See figure 3.3.5.

For remote mounted converters there are two electrical conduit connections. Use the left connection, as viewed from the terminal side, for the signal wire (YFO11 cable) and the right connection for the output wiring. If the connection directions are reversed, the cover shield for the signal terminals cannot be installed.

Figure 3.3.5: Shield Converter -Remote Type

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3.4 CABLE

3.4.1 Field terminating the signal cable (YF011-0*E)

Both ends of the cable must be finished in accordance with the following instructions. The maximum cable length is 65 feet (20 meters). The YEWFLO cable is a special double-shielded cable available only from Yokogawa Industrial Automation. Proper termination is critical to ensure the meter performs as specified. Do not splice additional cable to add length. Please follow all steps completely.

If you are shortening the cable in the field, to simplify your work, cut off excess length from the flowmeter end of the cable only and re-terminate. The flowmeter end requires only three (3) termination’ s, while the converter end requires four (4).

Figure 3.4.1: YF011 Signal Cable

Caution: Do not allow the “ conductive layer” (black covering over signal wires A & B) to short to case

ground or any other conductor. Please follow the termination procedure to insure proper termination and flowmeter performance.

Flowmeter end of the cable

1. Strip the outer polyethylene jacket, outer braided shield, inner jacket, and inner braided shield to the dimensions shown.

Caution: Don’ t cut the uninsulated drain wires.

2. Strip off the black conductive layer on each wire exposing the red or white insulation underneath to the

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INSTALLATION

dimensions shown. Cut the length of each wire to the dimensions shown. Twist the strands of each wire and drain wire so there are no free strands.

3. Do not allow the black conductive layer to short circuit to wires A, B, C or the metal Case.

4. Strip off the red or white insulation to the dimensions indicated. Twist the outer and the inner drain wires (shields) together. You should now have 3 individual conductors.

5. Insert insulating tubing over the twisted drain wires, wire C, as far as possible. Cut the tubing off leaving only 0.2 inches (5 mm) of the drain wire exposed. Strip 0.2 inches (5 mm) of insulation from the tips of the remaining two wires, A and B.

6. Slide heat shrinkable tubing over the wire bundle such that it covers the braided shields, overlaps the outer jacket and the loose wires A, B, and C as shown. Be certain that this tubing insulates all shield wires from chassis ground, this will insure that the field ground remains isolated from the control room ground.

7. Install insulated crimp lugs on each wire A, B, and C.

8. Attach identifying labels to the outside of the signal cable.

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Confirm that the insulation between each wire including the inner shield is 10 Mega Ohm or greater at 500 VDC. Maintain both ends of the wires disconnected (open circuit) during insulation resistance (Hi-Pot) test.

Converter end of the cable

1. Strip the outer polyethylene jacket, outer braided shield, inner jacket, and inner braided shield to the dimensions shown. Caution: don’ t cut the drain wires.

2. Strip off the black conductive layer on each wire exposing the red or white insulation underneath to the dimensions indicated. Twist the strands of each wire and drain wire so there are no free strands.

3. Do not allow the black conductive layer to short circuit to wires A, B, C, G or the metal case.

4. Strip off the red or white insulation to the dimensions indicated, and cut each wire to length as shown.

5. Insert blue insulating tubing over the outer shield drain wire (G), and black insulating tubing over the inner shield drain wire (C) as shown. Cut the tubing off exposing

0.2 inches (5 mm) of each drain wire. Strip 0.2 inches (5 mm) of insulation from the tips of the remaining two wires (A and B).

6. a) Slide heat shrinkable tubing over the entire wire bundle such that it overlaps the outer jacket, outer shield and the blue wire (G) as shown. Be certain that the outer shield is fully protected.

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INSTALLATION

b) Slide another heat shrinkable tubing over the wire bundle such that it covers the inner braided shield, overlaps the inner jacket and the loose wires A, B, and C as shown. Be certain that the heat shrink tubing protects all shield wires from chassis ground. Heat the tubing as necessary to shrink it for a tight fit.

7. Install insulated crimp lugs on each wire A, B, C and G.

8. Attach identifying labels to the outside of each signal cable.

3.5 WIRING CAUTIONS

When installing the YEWFLO in a hazardous area, particular care must be taken when wiring the meter not violate any of the requirements of the hazardous area approvals.

For explosionproof installations, the wiring must be protected by conduit and proper seals so hazardous material exposure is limited and consistent with the requirements of the approving agency (FM or CSA). If you are unsure about the requirements of the approving agency, consult their appropriate standards handbook.

3.5.1 Flameproof transmitter installation

The model YF100 vortex flowmeters and YFA11 vortex flow converters are designed to be used in hazardous areas, divisions 1 and 2. Their specific uses are outlined in “ Recommended practice for explosion-protected electrical installations in general industries (Gas Explosion Protection, 1985).” To avoid damaging the flameproof equipment, connecting bolts, wiring and pipes should be installed with care. Caution should also be used for maintenance and repair of the equipment. For further information, refer to “Operating precautions for instruments of flameproof construction conforming to technical criteria (IEC-Compatible Standards)”

3.5.2 Cautions for insulation and dielectric strength testing

Since the flowmeter has undergone insulation and dielectric tests at the factory prior to shipment, these tests are normally not required again. However, if required, follow the precautions and procedures listed below:

1) Do not apply voltages exceeding 500 VDC for insulation resistance testing or 500 VAC for dielectric strength testing.

2) Before conducting these tests, disconnect signal lines from the flowmeter terminals.

• Insulation Resistance Test Procedure

1) Short-circuit the + and – (4-20 mA output type) or +, P and – (pulse output type) terminals in the terminal box.

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2) Connect a plus (+) insulation tester leadwire to these terminals and the minus (–) leadwire to ground.

3) Turn the insulation tester power ON and measure the resistance between the two leads. Do not apply the voltage for more than two minutes.

4) After completing the test, disconnect the insulation tester. The short-circuiting wire between

the + and – terminals should be connected to the ground terminal through a 100kΩ resistor

allowing discharge of any internally charged static voltage. Do not make physical contact with these terminals until the voltage is completely discharged.

• Dielectric Strength Test

1) Short-circuit the + and – (4-20 mA output type) or +, P and – (pulse output type) terminals in the terminal box.

2) Connect a dielectric strength tester between the + and – terminals and the ground terminal. (Connect the dielectric strength tester positive (+) leadwire to the short-circuited terminals and negative (–) leadwire to the transmitter ground terminal.)

3) Gradually increase the test voltage from 0 to the specified voltage.

4) When the test voltage is obtained, maintain it for one minute.

5) After completing this test, slowly decrease the voltage to avoid any voltage surges.

3.5.3 Instruction document for FM explosionproof instruments

Wiring

• All wiring shall comply with the national electrical code ANSI/NFPA70 and local electrical codes.

• In hazardous locations, wiring shall be placed in a conduit.

Operation

• WARNING: Do not open the cover while the circuit is alive.

• Avoid generating mechanical sparks when near the instrument and peripheral devices in hazardous

locations.

Maintenance and Repair

• Instrument modification or replacement parts provided by anyone other than an authorized

representative of Yokogawa Industrial Automation is prohibited and will void the Factory explosionproof certification.

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Figure 3.5.1: Integral Type

INSTALLATION

(A) YF100-A series Vortex flowmeters can be used in the following hazardous areas:

• Explosionproof for Class I, Division 1, Groups B, C and D.

• Dust ignition-proof for Class II, Division 1, Groups E, F and G

• Suitable for Class III, Division 1

• Outdoor hazardous locations, NEMA 4

Figure 3.5.2: Remote Type

(A) YF100-N series Vortex flowmeters can be used in the following hazardous areas:

• Explosionproof for Class I, Division 1, Groups B, C and D.

• Dust ignition-proof for Class II, Division 1, Groups E, F and G

• Suitable for Class III, Division 1

• Outdoor hazardous locations, NEMA 4

Figure 3.5.3: Remote Converter

(A) YFA11 series Vortex flowmeters can be used in the following hazardous areas:

• Explosionproof for Class I, Division 1, Groups B, C and D.

• Dust ignition-proof for Class II, Division 1, Groups E, F and G

• Suitable for Class III, Division 1

• Outdoor hazardous locations, NEMA 4

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3.5.4 Wiring cautions for CSA intrinsic safety

If the meter is to be installed in an intrinsically safe system, safety barriers must be installed to prevent excessive power from entering the hazardous area.

• Integral Installation

Doc. No. ICS002-A12 p. 1 *CSA certified barrier with parameters of 28V/300 ohms.

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• Remote Installation

Doc. No. ICS002-A12 p. 1 *CSA certified barrier with parameters of 28V/300 ohms.

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3.5.5 Wiring cautions for FM intrinsic safety

If the meter is to be installed in an FM intrinsically safe system, safety barriers must be installed to prevent excessive power from entering the hazardous area.

• Non-incendive Integral Installation

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INSTALLATION

• Non-incendive Remote Installation

Non-incendive Parameters:

Vmax = 28V, Imax = 93mA, Ci = 4nF (analog output), Ci = 62nF (pulse output), Li = 0 Vmax > Voc, Imax > Isc, Ca > Ci + Ccable, La > Li + Lcable

Notes:

1. Division 2 power source must be FMRC approved.

2. Control room equipment connected to the power supply must not use or generate more than 250V.

3. YF011 Signal Cable max length 131 ft. (40 m).

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• Intrinsically Safe Remote Installation

• Intrinsically Safe Integral Installation

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INSTALLATION

• Max. Entity Parameters Vmax = 28 Vdc Imax = 93 mA Pmax = 0.66W

Analog Output

Pulse Output

Ci 4 nF 62 nF Li 0 mH 0 mH

• Installation Requirements Vmax > Voc or Vt Imax > Isc or It Ca > Ci + Ccable La < Li + Lcable

Notes:

1. YF011 signal cable max length 20 meters.

2. Maximum non-hazardous location voltage must not exceed 250v.

3. Do not alter drawing without authorization from FMRC.

4. Installation should be in accordance with ANSI/ISA RP12.6. "Installation of Intrinsically Safe Systems for Hazardous (Classified) Locations" and the National Electrical Code (ANSI/NFPA

70).

5. Approved dust-tight seals are required for Class II and III installations.

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IV. MAINTENANCE

4.1 HOW TO...

The following how to lists are described in this chapter.

4.1.1 Communicating with the YEWFLO remotely

4.1.2 Adjusting zero and span

4.1.3 Using self-diagnostics

4.1.4 Simulating an output/performing a loop check

4.1.5 Changing the output mode to analog or pulse

4.1.6 Increasing gas and steam flow measurement accuracy by correcting for gas expansion

4.1.7 Activating Reynolds number correction

4.1.8 Activating mismatched pipe schedule (bore) correction

4.1.9 Setting up and resetting the internal totalizer

4.1.10 Scaling the pulse output

4.1.11 Setting up user defined flow units

4.1.12 Setting up the local LCD indicator display mode

4.1.13 Setting the low cut flowrate

4.1.14 Trimming the 4-20 mA analog output

4.1.15 Using the upload/download feature

For information on the following items, please refer to the noted reference points.

Adjusting trigger level adjustment (TLA) ................................................ see signal conditioning

Adjusting noise balance ........................................................................... see signal conditioning

Adjusting noise judge............................................................................... see signal conditioning

Connecting an oscilloscope to read the output from the YEWFLO ........... see troubleshooting

Minimizing the affects of noise ................................................................ see signal conditioning

Sizing a YEWFLO .................................................................................. refer to YEWFLO

sizing software

Calculating pressure drop through a flowmeter......................................... refer to YEWFLO

sizing software

Driving an output by inputting a frequency............................................... see amplifier calibration

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4.1.1 Communicating with the YEWFLO remotely

The BT100/BT200 may be connected directly to terminals on the amplifier to communicate. You must direct connect to communicate when the output jumpers are set for pulse output. With analog output

configuration, you may communicate either on the 4-20 mA loop wires or via a direct connection. The following conditions must exist in either case for communication to operate properly.

Analog output mode

1. 250Ω to 600Ω of resistance must be in the loop, even for direct amplifier connection.

2. The output jumpers on the amplifier must be set to the analog position.

3. The vortex meter must be powered by 18.5 to 42 VDC. For proper communication at the meter terminals, the ripple should be < 100 mVAC. Refer to figure 1.3.2 for power supply requirements.

4. Attach one end of the BT100/200 communication cable to the top of the communicator.

5. For Analog mode, there are two ways to communicate as follows: A. Local Communication: Attach the other end of the communication cable to the HHT ANALOG

terminal and the HHT COM terminal on the amplifier itself. These connection points are labeled per above and color coded with a yellow bead. Polarity does not matter.

B. Remote Communication: Connect the handheld terminal to the 4-20 mA signal wires, such that

at least 250Ω of the loop load is between the leads. Polarity does not matter.

Pulse output mode

1. The output jumpers on the amplifier must be set to pulse position.

2. The vortex meter must be powered by 14 to 30 VDC.

3. Attach one end of the BT100/200 communication cable to the top of the communicator.

4. On a pulse output vortex meter there is NO requirement for 250Ω of resistance.

5. For Pulse mode, only local communication is supported. A. Attach the other end of the communication cable to the HHT PULSE terminal and the HHT

COM terminal on the amplifier itself. These connection points are labeled per above and color coded with a yellow bead. Polarity does not matter.

Communication Start-up

BT200 handheld terminal BT100 handheld terminal

1. Power up by pressing the ON/ OF F key.. Power up by pressing the P O WE R key.

The WELCOME message indicates the handheld terminal is working properly.

2. Press E N T E R and a screen of information such as

YEWFLO*E showing what instrument you are connected to, TAG NO., and SELF CHECK status, is displayed.

At this point you are ready to begin configuring or otherwise interrogating the YEWFLO parameters.

Pressing E N T E R again (F 4 soft key OK) will

display a list of menus to choose from.

Press ME NU (or any key) and YEWFLO*E is displayed

showing your instrument connection.

Press me n u (or any key) again and TAG NO. is

displayed.

Press me n u (or any key) again to display SELF CHECK

status.

Pressing me n u (or any key) again will take you to the A:DISPLAY menu - the top of all menus.

This process completes start-up of communication. Once you are successfully communicating, please refer to the appropriate “How To” section to help you make the configuration change desired. If you receive a

Comm. Er ror recheck the connections as described above, and insure that the batteries in the handheld

terminal are fully charged. Refer to figure 4.5.1 for a connection diagram.

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4.1.2 Adjusting zero and span

Zero Adjustment

There is no zero adjustment required on the YEWFLO. This is a procedure frequently required on other types of flowmeters but is not applicable to the YEWFLO vortex flowmeter. If the vortex meter provides an output in a no flow situation refer to the signal processing section or troubleshooting section of this manual.

Span Adjustment

All YEWFLO vortex meters, both analog and pulse output units, require an initial span setting. If you provided the correct process conditions at the time of your order, span has been preset at the factory. If it is necessary to change this value, follow this procedure to make a span adjustment.

BT200 handheld terminal BT100 handheld terminal

B :SET 1

Using the up/down arrows,

scroll to the B :SET 1 menu and press E N T E R .

Depress the Me n u key until B :Set 1 menu appears.

B51: SPAN FACTOR E+1

B52 :FLOW SPAN 7,500

Use the up/down arrow keys to move through the parameter

list until B51: SPAN FACTOR is displayed, press E NT E R . Select the desired SPAN FACTOR from the list. If the span value is greater than 32,000 an exponential S PAN FACTOR (x 10 multiplier)

must be used. For example, a span value of 75,000; the flow span

(B52) would be set to 7,500 and the SPAN FACTOR would be set to

E+1 (101). 7,500 x 101 = 75,000. Use the arrow keys to scroll through the choice list, press

E N T E R twice. Press F 4 ,

OK. Use the arrow key to move to

B52 :FLOW SPAN . Press E N T E R .

Input the flow span using the numeric keys

Press E N T E R twice. Press F 4 , OK.

Using the p r mt r key move

through the parameter listing

until B51 :Span Factor appears.

Use the I NC or D E C key to

move through the choice list,

press E N T twice.

Press the P R MT R key once to move to parameter B52 : FLOW

SPAN

Press E N T twice.

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4.1.3 Using self-diagnostics

From any menu you have access to the self-diagnostics in the YEWFLO.

BT200 handheld terminal BT100 handheld terminal

X60 :Self CHECK GOOD

From the menu screen, select any menu and press E NT E R , to enter parameter display mode. Press F 2 , the DI AG soft key. You may also scroll down to the “ 60” parameter in the current menu.

Press the DI AG key and you will immediately run diagnostics, and the display will show X60:SELF CHECK with either a GOOD or ERROR display. Note X denotes the alphabetic value of the current menu.

If error is displayed, press the E NT E R key to display an alphanumeric list of the error or errors. Scroll down to be sure all error messages are seen. Press F 4 (ESC) function to return to the menu screen.

As you resolve each condition that is causing an error, the error will automatically be cleared. To confirm that all errors have been corrected, please perform Step 1 again.

If error is displayed, press I NC or D E C to view the alphanumeric description of the error. Continue pressing the I NC or DE C key to scroll through the error list if there is more than one.

Refer to the error code listing chart for a detailed description of each error message.

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4.1.4 Simulating an output/performing a loop check

The YEWFLO provides the flexibility to simulate an output to perform a loop test. This feature can be used for Analog output or Pulse output configurations.

Analog Output - simulate output (parameter B02:OUTPUT must be set to 4-20 mA DC)

BT200 handheld terminal BT100 handheld terminal

F :TEST

From the menu screen scroll down to the

F: TEST choice. Press E NT E R .

Depress the me n u until the F: TEST menu

is displayed.

F01: OUT ANALOG 50

Select F01: OUT ANALOG parameter. Press

E NT E R .

Using the numeric keys, enter the value of percent of span you wish to simulate. i.e. 50% Press E NT E R twice. Press the E N T twice.

The current output, and the percent of rate display will agree with the value entered in

parameter F01. However, the engineering units display and totalization will continue to read

and totalize the actual flowrate.

Note: Two methods cause the simulated output to return to normal flow reading.

Press the F 4 (ESC) function key.

2) After 10 minutes the output will automatically return to normal.

Press the p r mt r once to display parameter F01: OUT ANALOG.

Move to any other menu or parameter, by pushing the ME N U or P RMT R key.

Pulse Output - simulate output (Parameter B02:OUTP UT must be set to PULSE)

BT200 handheld terminal BT100 handheld terminal

F :TEST

F01: OUT pulse 2000

From the menu screen scroll down to the

F:TEST choice. Press E N T E R .

Scroll down to parameter F02: OUT PULSE. Press E NT E R .

Use the numeric keys, enter the frequency value in Hertz you wish to simulate. i.e. 2000 Hz. Press E NT E R twice. Press the E N T twice.

The frequency output will respond to the value entered. Note: The pulse output, will agree

with the value entered in parameter F01. However, the percent of span display, engineering

units display and totalization will continue to read the actual flowrate.

Depress the menu key until the F:Test menu

is displayed.

Press the p r mt r twice to display F02: Out Puls e.

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Two methods cause the simulated output to return to normal flow reading.

Press the F 4 (ESC) function key.

2) After 10 minutes, the output will automatically return to normal.

Push the Me n u or P R MT R key to move to another menu or parameter.

MAINTENANCE

4.1.5 Changing th e output mode to analog or pulse

Changing the output to Analog output

On the amplifier, move the 3 individual output jumpers to the “ analog” position, these are the 3 pins on the right as you look at the amplifier board. Refer to figure 1.3.2 for power supply requirements. This step must be completed before proceeding. NOTE: To communicate in analog output mode you must have a

current loop load of 250Ω 600Ω.

After connecting the communication cable to the BT100/200 connect the clip leads on the other end to the HHT ANALOG and HHT COM terminals of the amplifier, or on the 4-20 mA signal wires. Power up the

BT100/200 and proceed with the following steps:

BT200 handheld terminal BT100 handheld terminal

B: S ET 1

From the menu screen, select B: SET 1

using the up/down arrows, scroll to and

press the E NT E R key.

Press the ME N U key until the B: S e t 1

menu is displayed.

B02: OUTPUT 4 to 20 mA DC

Changing the output to Pulse output

On the amplifier move the 3 individual output jumpers to the “ pulse” position, these are the 3 pins on the left as you look at the amplifier board. Refer to figure 1.3.2 for power supply requirements. This step must be completed before proceeding. NOTE: You cannot communicate remotely in the pulse output mode.

After connecting the communication cable to the BT100/200 connect each alligator clip to the HHT pulse and HHT COM terminals of the amplifier. Turn the power on the BT100/200 and proceed with the following steps.

B: S ET 1

B02: OUTPUT P ULSE

Using up/down keys select B02: OUTPUT and press the E N T E R key. Using the up/down arrows, select 4 to 20 mA DC and press the E N T E R key twice. Then press F 4 , OK.

BT200 handheld terminal BT100 handheld terminal

From menu screen, use the arrow keys to

select B: S ET 1 and press the E NT E R

key.

Use up/down arrows keys to scroll to

B02: OUTPUT. Press E NT E R . Use the arrow keys to select P ULSE and press E N T E R twice. Then, press F 4 ,

OK.

Press the p a r a me t e r key until parameter B02 : Out put is displayed. Using the I N C and DE C key display the available options. When 4 to 20 mA DC is displayed press the E NT key

twice.

Press the ME N U key until the B: S e t 1

menu is displayed.

Press the P R MT R key until parameter B02: Out put is displayed. Use the I NC or D E C key to select P ulse and press the E N T key twice.

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4.1.6 Increasing gas and steam flow measurement accuracy by correcting for gas expansion

To achieve the highest level of performance from a vortex meter when measuring a compressible fluid, YEWFLO offers a gas expansion factor which will automatically make the necessary correction and improve gas accuracy to ±0.8% of rate over the full operating range. Without the gas expansion factor, the standard accuracy is 1.5% of rate.

The pressure drop across the shedder bar increases with increasing flowrate. As the pressure drop increases, the gas expands. Gas expansion due to the higher pressure drop will cause the vortex flowmeter

to read high. To compensate for this velocity activate the D06: EXPANSION FA parameter. To activate this

function, please follow the steps below:

NOTE: Do not activate this function for liquid flow applications. Review the setting of parameter B04:

FLUI D to confirm the settings are for Gas or Steam only.

BT200 handheld terminal BT100 handheld terminal

D :ADJUST

Proceed to the menu screen

and select the D: ADJUST and press E N T E R .

Press the ME N U key to move to the D: Adj ust menu.

D06 :EXPANSION FA ACTIVE

Scroll through the parameters

to D06 : EXPANSION FA and press E N T E R .

Using the arrow keys, select

ACTI VE and press E NT E R twice. Then, press F 4 , OK.

Using the P R MT R key move to parameter D06

:Ex pansion FA.

To activate this feature use the

I NC or D E C key to select activ e and press E NT twice.

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4.1.7 Activating Reynolds number correction

What is Reynolds Number Correction?

The YEWFLO vortex meter’ s output is linear beginning at 20,000 Reynolds number, or 40,000 for sizes 6 inch and above. From 5,000 to 20,000 Reynolds number the meter’ s output is nonlinear, but repeatable. Reynolds number adjustment is a correction factor applied to the output to compensate for this nonlinearity within this Reynolds number range. When activated, flowmeter accuracy is improved to 0.8% of rate throughout the flow range above 5000 Reynolds number. The correction factors listed below are automatically applied when this feature is activated.

BT200 handheld terminal BT100 handheld terminal

D: adjust Select the D: adjust menu

and press e n t e r .

Press Me n u until the

D: Adjust menu appears.

D01: Reynolds adj Active

D02: viscosity

1.0

D03 :Density F

8.3

The flowmeter will now be corrected for flowrates between 5,000 and 20,000 Reynolds number. Please be sure to input accurate viscosity and density values, as this correction is only as valid as the accuracy of these parameters. If viscosity and density change, accuracy will be affected until the new values are input.

Scroll to the first parameter,

D01: Reynolds adj, press e n t e r .

Scroll to the active selection and press e n t e r twice. Press F 4 {E S C} to return

to the parameter list.

Select parameter D02: vi scosity and press e n t e r .

Input the flowing viscosity in centipoise

Press enter twice, Press f 4 {e s c } to return to the

parameter list.

Scroll to parameter

D03: DENSITY F and press e n t e r .

Input the flowing density in units per B07 . Press E N T E R twice. Press e n t twice.

Depress the P RMT R key

and move to the first

parameter D01: Reynolds Adj. Using I NC or D E C select acti ve and press e n t twice.

Press P RMT R to move to

D02: viscosity.

Press e n t twice.

Using the parameter key move

to the D03: DENSITY F

parameter.

Note: There are certain conditions where performance in the range of 5,000 to 20,000 Reynolds number is not possible. Please consult the YEWFLO sizing program, your local representative or the Yokogawa Industrial Automation factory for clarification.

Reynolds # Correction

40,000 20,000 12,000 8,000 5,500

0% -1.0% -3.6% -6.5% -11.4%

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4.1.8 Activating mis-matched pipe schedule (bore) correction

The mating pipe in a vortex meter installation should be schedule 40 pipe, using other schedule pipes can cause small errors. If a pipe schedule other than schedule 40 is being used the error can be corrected using the pipe effect correction.

Mis-matched pipe schedule correction

BT200 handheld terminal BT100 handheld terminal

D: adjust

Select menu D: adj ust and press e n t e r .

Press me n u until d: adj ust

is displayed.

d05: pipe effect Wafer Sch80

Pipe schedule correction is now invoked, and accuracy will be corrected for the combination selected.

Model Size Wafer Flange

YF101 ½” (15 mm) 0 -0.8 0 0.1 YF102 1” (25 mm) 0 YF104 1½” (40 mm) -0.2 YF105 2” (50 mm) 0.1 -0.9 0 YF108 3” (80 mm) 0.2 0.2 0.1 YF110 4” (100 mm) 0.2 -0.1 0.1 0 YF115 6” (150 mm) NA NA NA 0.3 -0.1 YF120 8” (200 mm) NA NA NA 0.3 -0.1 YF125 10” (250 mm) NA NA NA 0 0 YF130 12” (300 mm) NA NA NA 0 0

Scroll to the d05 : pipe effect

parameter and press

e n t e r .

Select from the list the correct combination of process connection (wafer or flange) and pipe schedule, (Sch10, Sch80 etc.), and press

e n t e r twice.

Sch 10

(%)

Sch 40 Sch 80

Correction

(%)

-0.7 0 0.1

-0.3 0 0.1

Press the p r mt r key until the D05 : pipe effect menu

appears.

Using the i n c or d e c

keys, select the correct combination of process connection and pipe schedule,

press e n t twice.

Sch 10

(%)

Sch 40 Sch 80

Correction

(%)

0.1 0

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4.1.9 Setting up and resetting the internal totalizer

Setup of the internal totalizer

BT200 handheld terminal BT100 handheld terminal

C: SET 2

Scroll through the menus to the C: SET 2 , then press E N T E R .

Press the ME N U key until the C: Set 2

menu appears.

C01: Total Rate

Note: When factors other than E0 are used the appropriate multiplier sticker should be placed on the

bezel of the local indicator, if present (/TBL).

Scroll down to C01: Tot al Rat e and press E N T E R .

Scroll to the desired totalizer factor, press

E N T E R twice.

The available options for totalizer rates include scaled and unscaled rates

Examples:

E 0

E +2

E -2

There are three special settings designed to maximize resolution:

UNSC * 1 UNSC * 10 UNSC * 100

Note: Set this parameter such that the maximum count or pulse rate does not exceed 6,000 Hz.

Press p r mt r key to move to parameter C01: Total Rate. Use the I NC or D E C key to select the desire totalizer factor. Press E NT twice.

1 count equals one unit of flow (100) , units same as flow unit. 1 count equals 100 units of flow (102) , units same as flow unit. 1 count equals 0.01 units of flow (10-2) , units same as flow unit.

1 pulse in, 1 count out (Unscaled) 1 pulse in, 10 counts out (Unscaled) 1 pulse in, 100 counts out (Unscaled)

Resetting the internal totalizer

BT200 handheld terminal BT100 handheld terminal

E: CONTROL

E01: TOTAL RESET execute

Note: This parameter will automatically revert to NOT EXECUTE, when you exit the parameter.

Scroll to the E: CONTROL menu and press E N T E R .

Scroll to parameter E01: TOTAL RESET and press E N T E R .

Scroll to the value Exec ute and press e n t e r twice to reset the totalizer.

Press the ME N U key until the E: Control menu appears.

Press the P R MT R key once to display the parameter E01: Total Reset.

Use the I NC or D E C key to select ex ecute and press e n t twice to reset

the totalizer.

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4.1.10 Scaling the pulse output

Before setting the pulse rate be sure that the YEWFLO has been properly set to pulse output mode. The pulse output of the YEWFLO may be configured as a scaled or unscaled pulse output. Follow this procedure to set the pulse scaling. Use scaled pulse to scale the output to pulses per engineering unit per B51 Flow span units. Use unscaled pulse (UNSC*1, UNSC*10 or UNSC*100) for maximum pulse resolution. Output will be 1, 10 or 100 pulses output for each input pulse. Use the K-factor to convert unscaled units to volume units.

Setup of pulse output

BT200 handheld terminal BT100 handheld terminal

C: SET 2

Scroll through the menus to the

C: SET 2, then press E NT E R.

Depress the ME NU key until the C: Set 2 menu appears.

C02: pulse rate E +2

Scroll down to C02: p ulse r ate and press E NT E R.

Select from the list the desired pulse rate factor, press

E N T E R twice.

The available options for pulse rate include scaled and unscaled rates.

Examples: E 0

E +2

E - 2

There are three special unscaled settings designed to maximize resolution:

UNSC * 1

UNSC * 10

UNSC * 100

Press p r mt r key to move to parameter C02: pulse r ate . Use the I NC or D E C key to

select the desire pulse rate

factor. Press E N T twice.

1 pulse equals one unit of flow (100), units same as flow span. 1 pulse equals 100 units of flow (102), units same as flow span. 1 pulse equals 0.01 units of flow (10-2), units same as flow span.

1 pulse in, 1 pulse out (Unscaled) 1 pulse in, 10 pulses out (Unscaled) 1 pulse in, 100 pulses out (Unscaled)

Set this parameter such that the maximum count or pulse rate does not exceed 6,000 Hz at max flow span.

Note: Gas Expansion Correction Factor in % reading = (-5.70833 x E-4 x V2) - (5.83333 x E-4 x V);

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Where V = Average measured uncorrected velocity in m/sec

MAINTENANCE

4.1.11 Setting up user defined flow units

It is possible that the flow units required for a particular application may not be available as standard flow units. Therefore, YEWFLO offers the flexibility of setting custom user units for any application.

BT200 handheld terminal BT100 handheld terminal

B :SET 1

B35 :Fl ow unit USGAL

B50 :Time Unit / m

C: SET 2

Scroll to the B: SET 1 menu and press the

E N T E R key. Select a standard flow unit for parameters B15, B22, B29, or B35

and select a standard time base for

parameter B50 from the available list.

Make your selection from the list by

scrolling to it and pressing E N T E R

twice.

Only one of the above flow unit parameters will be available depending on whether

your application is for Gas, Liquid, Steam or Energy flow as selected in B04 :Fl uid.

From the menu screen scroll down to

C: SET 2 and press E N T E R. Then, press F 4 , OK.

Using the me n u key move to the B: SET 1 menu. Using the P RMT R key, select parameters B15, B22, B29, or B35. Then using the I NC or D E C key, select a standard unit. Use the P RMT R key to select parameter B50 and I NC or DE C to select a standard time base.

Press the ME N U key until C: Set 2 is

displayed.

C09: UNIT CONV FA

0.0238

C10: USERS UNIT BBL

The C09: Unit Conversion Fa is defined as: Standard Units/Custom Unit

Example: Set up for span of 50 BBL/h (Barrels per hour)

B35: FLOW UNIT..................USgal; conversion = 42 USgal/BBL (oil) or .0238 BBL/USgal

B50: TIME UNIT.................../h

C09: Unit Conversion Fa ..Enter 0.0238 BBL/USgal

C10: USER’ S UNIT .............Enter the abbreviation for barrels; BBL

After making the above modifications, the units of flow will now be barrels per hour, BBL/ h. This unit will

not appear on the /TBL indicator, but only when communicating with the BT100 or BT200. Parameter

A20 will now indicate flowrate in BBL/ h and parameter A30 will now totalize in Barrels, BBL.

NOTE: After making these settings, the value of parameter B52: FLOW S PAN must be set in custom user units, i.e. BBL/ H or 50, for this example.

Scroll down to C09: UNIT CONV FA and press E N T E R . Using the numeric

keys, enter the conversion factor and

press the E NT E R key twice. Press F 4 , OK.

See below for how to calculate the correct conversion factor.

Scroll to parameter C10: USERS UNIT and press the E NT E R key. Enter the

custom flow units abbreviation using the

alphanumeric keys. Press E N T E R

twice to save.

Using the P R MT R key move through this menu until parameter C09: Unit Conversion Fa is displayed. Use the

numeric keys, enter the conversion factor

and press the E N T key twice.

Using the P R MT R key move to the c10: users unit parameter and enter the

custom flow units abbreviation using the

alphanumeric keys. Press E N T twice to

save.

Setting parameter C09: Uni t Conversion Fa to any value other than ‘ 0’ activates the custom user units function. To clear this function set C09 to ‘ 0’ .

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4.1.12 Setting up the local LCD indicator display mode

The YEWFLO vortex meter offers a variety of display options. The following procedure will allow you to select which values are displayed, for your application.

BT200 handheld terminal BT100 handheld terminal

E: CONTROL

Scroll through the menus to

the E: CONTROL menu, then press E N T E R .

Press the ME N U key until the E: Contr ol menu is

displayed.

E02: DISP SELECT rate %

Scroll to parameter E02: DISP SELECT then press E NT E R.

Scroll to your desired choice,

press E N T E R twice.

Select one of the 6 display options for the local indicator. The available options are:

rate % rate tot al

rate%, total

rate, total

rate, rat e%

Using the p r mt r key move to parameter E02: Disp Select . Using I NC or D E C move

to the display option of your

choice, press E NT twice to

select.

Rate in percent of span. Rate in engineering units. Totalized flow in engineering units. Alternating display; rate in percent of span and total flow. Alternating display; rate in engineering units total flow. Alternating display; rate in engineering units and rate in percent of span.

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4.1.13 Setting the low cut flowrate

The low cut flowrate is a digital cut-off that can be configured to force the analog or pulse output to 0% when the flow is below a predetermined value. This parameter is used especially to lock out erroneous flow signals that may occur below Qmin, where it may be desirable to have the meter drop to zero rather than provide erroneous readings.

To set the low cut flowrate; move to menu H: Maintenance , then move down to H07: L.C. Flowr at e . Using

the numeric keypad input the low flow cut-off flowrate in flow span units. Once this value is stored, any signal below the low cut flowrate will generate a 0% output.

H :Maintenance

H07 :L.C. Flowrate 10

BT200 handheld terminal BT100 handheld terminal

Move to parameter H07, input the desired low flow cut-off value in flow span units,

i.e. 10 Gal/min.

Press E n t e r twice. Press e n t twice.

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4.1.14 Trimming the 4-20 mA analog output

The 4-20 mA analog output circuit is accurately calibrated at the factory using precision test equipment. Field adjustment of this circuit is rarely required. This adjustment should not be made when there is a suspected offset of the 4 mA point due to noise such as pipe line vibration, in this case, please refer to signal conditioning.

If you find it necessary to trim the 4 mA and/or 20 mA value, it can be adjusted digitally with the

handheld terminal. An example of when to use this adjustment would be when there is a 250Ω resistor in

the loop changing the output to 1 - 5 volts. If the resistor value is not exact, an offset error of either the 4 mA (1V) and/or 20 mA (5V) reading will occur.

To digitally trim the current output, refer to the following formula and example to determine the correct

digital trim parameter settings. The parameter H08 : Tri m 4mA is used to adjust the 4 mA (or 0%) output, and parameter H09 :Trim 20mA is used to adjust the 20 mA (or 100%)

H :Maintenance

H08 :TRIM 4ma

0.45 %

H09 :Trim 20ma

1.25 %

H08 :TRIM 4ma

0.8993 %

BT200 handheld terminal BT100 handheld terminal

Move to parameter H08, re-enter the

value shown, (.45 this example) press

E n t e r twice. The output will go to

0%. (Don’ t press OK until you are ready to leave this parameter).

Read the analog output at 0% and record it as X (3.93mA this example).

Record the original value of H08 (0.45 this example).

Move to parameter H09 and re-enter the

value shown, (1.25 this example) press

e n t e r twice. The output will go to

100%. (Don’ t press OK until you are ready to leave this parameter).

Read the analog output at 100% and record it as Y (19.72mA this example).

Record the original value of H09 (1.25 this example). Calculate the New H08 setting using X and Y from above in Equation 1. Calculate the New H09 setting using X and Y from above in Equation 2.

Store the New H08 setting (confirm the output goes to 4 mA or 0%).

Move to parameter H08 and press e n t

twice.

Move to parameter H09 : TRIM 20ma and press e n t twice.

H09 :Trim 20ma

2.58%

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Store the New H09 setting (confirm the output goes to 20 mA or 100%).

MAINTENANCE

milliAmp example:

Calculate the new settings using X and Y values from above:

(Equation 1)

NEW H08 setting = ( 4 - X ) / ( Y - X ) * 100 + orig. H08 setting

example: 0.89 = ( 4 - 3.93 )/( 19.72 - 3.93 ) * 100 + 0.45

Example: milliAmp

Original New

H08 H09 X Y

(Equation 2)

NEW H09 setting = ( 16 + X - Y )/( Y - X )*100 + current H09 setting

example: 2.58 = ( 16 + 3.93 - 19.72 )/( 19.72 - 3.93 ) * 100 + 1.25

.45 .89

1.25 2.58

3.93 mA 4.00 mA

19.72 mA 20.00 mA

0-100% example:

Calculate the new settings using X and Y values from above, where X and Y have been converted to % of span values.

Example: 0-100%

Original New H08 .45 .89 H09 1.25 2.58 X -0.43% 0.0% Y 98.25% 100.0%

(Equation 1)

NEW H08 setting = - X / ( Y - X ) * 100 + orig. H08 setting

example: 0.89 = - ( -0.43 )/( 98.25 - (-0.43)) * 100 + 0.45

(Equation 2)

NEW H09 setting = ( 100 + X - Y )/( Y - X )*100 + current H09 setting

example: 2.58 = ( 100 + (-0.43) - 98.25 )/( 98.25-(-0.43)) * 100 + 1.25

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4.1.15 Using the upload/download feature

The upload/download feature of the BT100/200 allows for one meter to be configured for an application and then be copied to other meters with a minimum of key strokes. Note: Only the parameters in menu B and C will be transferred via the upload/download procedure. The tag number will not be transferred.

To UPLOAD a configuration:

BT200 handheld terminal BT100 handheld terminal

1. Attach the handheld terminal leads to the appropriate

instrument.

2. Using the BT100/200 set up the parameters in the YEWFLO as

required, or go to step 3 if the YEWFLO is already setup.

3. From the menu screen, press

F 4 , (E S C ) soft key to go to

the Function menu. Scroll

down and select the UPLOAD TO HHT choice.

4. Press E NT E R twice to

begin the upload.

Do not disconnect the leads until the UPLOAD DONE or upload COMPLETE message is displayed. Note: Only one configuration at

a time may be stored in either the BT100 or BT200.

From any menu or parameter

display, press the UP L D

key.

Press the E NT twice to begin

the upload.

To DOWNLOAD a stored configuration:

BT200 handheld terminal BT100 handheld terminal

1. Attach the handheld terminal leads to the appropriate

instrument.

2. From the menu screen, press

F 4 , (ESC) soft key to go to

the Function menu. Scroll

down and select the DOWNLOAD TO I NST choice. Press E N T E R twice to

begin the download.

Do not disconnect the leads until the Download DONE or DOWNLOAD COMP LETE message is displayed. Note: This same

configuration may be downloaded to as many YEWFLO meters as are required.

Note: Only the parameters in menu B and C will be transferred via the upload/download procedure. The tag number will not be transferred.

From any menu or parameter

display, press the DN L D

key.

Press E N T twice to begin the

download.

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4.2 DISASSEMBLY AND REASSEMBLY

This section describes disassembly and reassembly procedures required for maintenance and parts replacement. For replacement parts, see the parts list at the end of this manual.

Before disassembling the transmitter, turn the power off and release the pressure. Be sure to use the proper tools for disassembling and reassembling.

Caution: It is prohibited by law for the user to modify flameproof instruments. This includes adding or

removing indicators. If modification is required, contact Yokogawa Industrial Automation.

4.2.1 Indicator/Totalizer removal

When servicing the amplifier, follow procedures below.

1) Turn the power off.

2) Remove the cover.

3) Completely loosen the four indicator mounting screws using a Phillips head screwdriver.

4) Disconnect the cable connector from the amplifier unit .

5) Pull out the indicator.

6) To reinstall the indicator, follow these steps in reverse order (step 5 to step 1).

7) The ribbon cable key located on top of the connector should face upward when installed.

4.2.2 Amplifier replacement

Replace the amplifier as follows:

1) Turn the power off.

2) Remove the converter cover.

3) If required, remove the indicator as described in section 4.2.1.

4) Slightly loosen the three (3) terminal screws and remove the leadwires from the P, + and -

Figure 4.2.1: Removing and reinstalling the indicator

terminals. Don't drop the screws.

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5) Completely loosen the three amplifier mounting screws and remove the amplifier as shown in figure 4.2.1.

Caution: To avoid damaging the connector pins, do not rotate the amplifier unit.

6) When reinstalling the amplifier in the converter, match the connector pin positions with the socket then gently push the amplifier back into position. Don't push too hard or you will bend the pins.

7) Tighten the amplifier mounting screws.

8) Reconnect the leadwires to the amplifier. The sensor wires must be connected to the proper terminals for the amplifier to work correctly.

9) Set flowmeter parameters in the new amplifier.

4.3 VORTEX SHEDDER ASSEMBLY REMOVAL

Disassemble the vortex flowmeter only if the it performs abnormally. First determine the problem. Is buildup causing problems in the assembly or is it bad. You can check for buildup when you remove the shedder from the meter. If it slides out freely, buildup is not the problem. If it sticks, you should clean around the bottom socket and edges to remove residue. The following steps detail removal and reassembly procedures.

4.3.1 Removal of shedder from remote converter type

1) Remove the terminal box cover.

2) Loosen the two terminal screws and disconnect the sensor

Terminal Wire

P Black

+ Red

- White

wires (A & B).

3) Remove the bracket mounting bolts and remove the terminal box and bracket simultaneously. Carefully remove the terminal box by first straightening the sensor wires. To avoid damaging the wires, squeeze the wires as you slide the terminal out.

4) Remove the vortex shedder assembly mounting bolts then remove the assembly. Check for buildup around the shedder bar holes and inside the meter.

5) When reassembling the vortex shedder bar assembly, reverse the above procedure making sure the arrow on the plate is aligned with the flow on the meter body.

Color Wire

Red A

White B

Table 4.3.1: Sensor Wire Color Code

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Figure 4.3.1: Disassembling and Reassembling the Vortex Shedder Assembly

Caution: When the shedder assembly is disassembled, the gasket must be replaced with a new gasket.

4.3.2 Removal of the shedder from integral type

1) Remove the converter cover.

2) Remove the amplifier. Refer to section 4.2.2 for directions.

3) Loosen the two terminal screws to disconnect sensor wires (A & B).

4) Remove the bracket mounting bolts and remove the terminal box and bracket simultaneously. Carefully remove the terminal box by first straightening the sensor wires. To avoid damaging the wires, squeeze the wires as you slide the terminal out.

5) Remove the vortex shedder assembly mounting bolts then remove the assembly. Check for buildup around the shedder bar holes and inside the meter.

6) When reassembling the vortex shedder bar assembly, reverse the above procedure making sure the arrow on the plate is aligned with the flow on the meter body.

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Figure 4.3.2: Disassembling and Reassembling the Vortex Shedder Assembly

4.4 RE ASSEMBLY CAUTIONS

1) Use a new gasket.

2) Orient the shedder bar with the wider surface upstream. Align the guide pin on the vortex shedder mounting block with the guide pin hole (1" - 4" flowmeters only). See figure 4.4.1.

3) Install the vortex shedder assembly properly.

4) Tighten all mounting bolts with a torque wrench. Use table 4.4.1 to determine the correct torque value.

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Figure 4.4.1: Vortex Shedder Bar Orientation

For high temperature assemblies (option /HPT), first tighten the bolts with a torque wrench applying the A value. Next, completely loosen all the bolts and retighten with a torque wrench this time using the B value.

5) Insert the sensor wires through the bottom hole of the terminal box. Slowly lower the terminal box until the bracket touches the flowmeter shoulder. Be sure to keep the sensor wires vertical while lowering the terminal box.

6) After assembly, confirm that there is no leakage.

4.4.1 YEWFLO shedder bolt torque procedure

Table 4.4.1 summarizes the torque values which should be used when reinstalling a shedder bar in any YEWFLO Vortex meter. When reading this table, please keep the following in mind:

1) Use the TEFLON COATED GASKET table for all meters with teflon-coated gaskets.

2) Use the SILVER PLATED GASKET tables for all meters with silver-coated gaskets regardless of whether they have a high-temperature sensor.

3) For meters with four bolts, tighten alternate bolts to produce an even compression of the gasket.

4) Enter the appropriate table using the meter size. Tighten all bolts to the value shown in the first column. When finished, tighten all bolts to the value shown in the second column. Continue this procedure until all bolts are tightened to the highest torque value.

5) For meters with silver-coated gaskets, begin by using the table labeled 1st round. When complete, unscrew all attachment bolts until the gasket compression plate is loose. Retighten all bolts using the values shown in the table marked 2nd round. Notice that some torque values are less for the second tightening sequence than for the first.

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BOLT TORQUE CHART

GREEN TEFLON COATED GASKET TORQUE

Size 1st 2nd 3rd 4th 5th

YF101 40 in-lb 70 in-lb 100 in-lb 140 in-lb

YF102,104 25 in-lb 60 in-lb 90 in-lb 105 in-lb

YF105 10 ft-lb 15 ft-lb 22 ft-lb 29 ft-lb YF108 10 ft-lb 22 ft-lb 37 ft-lb 43.5 ft-lb YF110 10 ft-lb 22 ft-lb 43.5 ft-lb 58 ft-lb 72.5 ft-lb YF115 10 ft-lb 15 ft-lb 29 ft-lb 36.5 ft-lb YF120 10 ft-lb 22 ft-lb 37 ft-lb 51 ft-lb

SILVER PLATED GASKET 1ST ROUND

Size 1st 2nd 3rd 4th 5th

YF102,104 30 in-lb 60 in-lb 90 in-lb 120 in-lb 152 in-lb

YF105 10 ft-lb 22 ft-lb 37 ft-lb 43.5 ft-lb YF108 10 ft-lb 22 ft-lb 43.5 ft-lb 58.5 ft-lb 72.5 ft-lb YF110 20 ft-lb 40 ft-lb 60 ft-lb 80 ft-lb 101 ft-lb YF115 10 ft-lb 15 ft-lb 29 ft-lb 36.5 ft-lb 51 ft-lb YF120 10 ft-lb 22 ft-lb 37 ft-lb 51 ft-lb 72 ft-lb

SILVER PLATED GASKET 2ND ROUND

Size 1st 2nd 3rd 4th 5th

YF102,104 30 in-lb 60 in-lb 90 in-lb 105 in-lb

YF105 10 ft-lb 15 ft-lb 22 ft-lb 29 ft-lb YF108 10 ft-lb 22 ft-lb 37 ft-lb 43.5 ft-lb YF110 20 ft-lb 22 ft-lb 43 ft-lb 58 ft-lb 72.5 ft-lb YF115 10 ft-lb 15 ft-lb 29 ft-lb 36.5 ft-lb YF120 10 ft-lb 22 ft-lb 37 ft-lb 51 ft-lb

Table 4.4.1

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MAINTENANCE

4.5 YEWFLO STYLE "E" AMPLIFIER CALIBRATION PROCEDURE

Before calibrating the YEWFLO style E you will need to have the following tools on hand:

Item Recommended Instruments Remarks

Power Supply 24 VDC ±10% (Ripple < Load Resistance (250 ohm) ±0.005% 4-20 mA DC version only Voltmeter Model 2506A digital multimeter (accuracy ±0.05%) 4-20 mA DC version only Oscilloscope Optional Optional BRAIN terminal BT100 or BT200 handheld terminal For parameter setting

The YEWFLO Style “E” amplifier is microprocessor-based and in normal operation the span vs. output relationship is checked automatically through the microprocessor’ s calculations. If it is necessary to prove the span/output relationship or generally check the correct operation of the amplifier, the following procedure can be followed. The procedure consists of two sections. Section 4.5.1 may be performed independently, but Section 4.5.2 and/or 4.5.3 should be performed only after Section 4.5.1 has been completed.

±50mV)

If the amplifier is checked in the instrument shop, be sure the amplifier case is well grounded. On remote amplifiers, besides grounding the case be sure to short terminals A, B, and C and ground them to the case. If checking an amplifier on a meter in-line, be sure the amplifier is well grounded and a no-flow condition exists.

Connect the amplifier as shown in 4.5.1. Apply power for at least five minutes before testing.

Before beginning, check to be sure that all parameter settings are as specified in the programming sheet which was included with the flowmeter instructions. If there is any discrepancy, correct the

Figure 4.5.1

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program values. If the amplifier has been reconfigured to accommodate new process conditions or the programming sheet is not available, it will be necessary to generate a new sheet by running the YEWFLO sizing program. Contact your Yokogawa Industrial Automation representative for a copy of the sizing program.

Note: For the remote amplifier, terminals A, B & C should be shorted together; otherwise, electrical noise

may interfere.

4.5.1 General amplifier check-out

a. Access parameter H06 (NOISE JUDGE) and set to “ NOT ACTIVE” .

b. Access parameter G02 (SPAN FREQUENCY) and record this value. Attach a calibrated

frequency generator to test points TP2 and COM2 and inject the same frequency as read in parameter G02.

c. Access parameter G01 (FREQUENCY) and confirm that this value agrees with the

frequency in Step b above to within ±0.1%. Agreement of these two values confirms the general internal operation of the amplifier. Any discrepancy in these two values indicates a problem with the amplifier which may require amplifier replacement. Contact the Yokogawa Industrial Automation Service Department for assistance at 1-800-524-7378.

d. If you wish to stop here, disconnect the frequency generator, return parameter H06 to

“ ACTIVE” . Otherwise, leave the frequency generator connected and parameters H06 and any correction functions deactivated and proceed to the next section to confirm amplifier calibration.

4.5.2 Analog output test

Before beginning this section, perform the amplifier checkout procedure, steps 4.5.1a - d above.

a. Check the PULSE/ANALOG jumpers on the front of the amplifier to be sure they are in the

correct position. Access (analog) parameter B02 (OUTPUT) and confirm the setting agrees with the jumper position.

b. With the frequency generator connected and injecting the frequency per Step 4.5.1b measure

the current being produced by the amplifier. The output should be 20 mA, ±.02 mA.

c. Remove the frequency generator and replace it with a shorting jumper and measure the

output. The output should be 4 mA, ±.02 mA.

d. If there is a discrepancy in the outputs measured in steps b and c, contact the Yokogawa

Industrial Automation Service Department for assistance at 1-800-524-7378. Otherwise, remove the jumper, return parameter H06 to “ ACTIVE” . Analog testing is complete.

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4.5.3 Pulse output test

Before beginning this section, perform the amplifier checkout procedure, steps a-d above.

a. Check the PULSE/ANALOG jumpers on the front of the amplifier to be sure they are in the

correct position (pulse). Access parameter B02 (OUTPUT) and confirm the setting agrees with the jumper position. Access parameter C02 (PULSE RATE) and set it to “UNSC*1” .

b. With the frequency generator connected and injecting the frequency per Step 4.5.1b, connect

a frequency counter across the “ -” and “ P” output screw terminals.

c. Check to be sure the frequency counter reads the frequency specified in Step 4.5.1b above

(±0.1%).

d. Remove the frequency generator and replace it with a jumper. Check to be sure the

frequency counter reads 0 Hz.

e. If there is a discrepancy in the outputs measured in Steps c and d, contact the Yokogawa

Industrial Automation Service Department for assistance at 1-800-524-7378. Otherwise,

remove the jumper, return parameter H06 to “ ACTIVE” , and return parameter C02 to your

required pulse rate setting. Testing is complete.

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4.2 DISASSEMBLY AND REASSEMBLY

This section describes disassembly and reassembly procedures required for maintenance and parts replacement. For replacement parts, see the parts list at the end of this manual.

Before disassembling the transmitter, turn the power off and release the pressure. Be sure to use the proper tools for disassembling and reassembling.

Caution: It is prohibited by law for the user to modify flameproof instruments. This includes adding or

removing indicators. If modification is required, contact Yokogawa Industrial Automation.

4.2.1 Indicator/Totalizer removal

When servicing the amplifier, follow procedures below.

1) Turn the power off.

2) Remove the cover.

3) Completely loosen the four indicator mounting screws using a Phillips head screwdriver.

4) Disconnect the cable connector from the amplifier unit .

5) Pull out the indicator.

6) To reinstall the indicator, follow these steps in reverse order (step 5 to step 1).

7) The ribbon cable key located on top of the connector should face upward when installed.

4.2.2 Amplifier replacement

Replace the amplifier as follows:

1) Turn the power off.

2) Remove the converter cover.

3) If required, remove the indicator as described in section 4.2.1.

4) Slightly loosen the three (3) terminal screws and remove the leadwires from the P, + and -

Figure 4.2.1: Removing and reinstalling the indicator

terminals. Don't drop the screws.

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5) Completely loosen the three amplifier mounting screws and remove the amplifier as shown in figure 4.2.1.

Caution: To avoid damaging the connector pins, do not rotate the amplifier unit.

7) Tighten the amplifier mounting screws.

8) Reconnect the leadwires to the amplifier. The sensor wires must be connected to the proper terminals for the amplifier to work correctly.

9) Set flowmeter parameters in the new amplifier.

4.3 VORTEX SHEDDER ASSEMBLY REMOVAL

4.3.1 Removal of shedder from remote converter type

1) Remove the terminal box cover.

2) Loosen the two terminal screws and disconnect the sensor

Terminal Wire

P Black

+ Red

- White

wires (A & B).

4) Remove the vortex shedder assembly mounting bolts then remove the assembly. Check for buildup around the shedder bar holes and inside the meter.

5) When reassembling the vortex shedder bar assembly, reverse the above procedure making sure the arrow on the plate is aligned with the flow on the meter body.

Color Wire

Red A

White B

Table 4.3.1: Sensor Wire Color Code

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Figure 4.3.1: Disassembling and Reassembling the Vortex Shedder Assembly

Caution: When the shedder assembly is disassembled, the gasket must be replaced with a new gasket.

4.3.2 Removal of the shedder from integral type

1) Remove the converter cover.

2) Remove the amplifier. Refer to section 4.2.2 for directions.

3) Loosen the two terminal screws to disconnect sensor wires (A & B).

5) Remove the vortex shedder assembly mounting bolts then remove the assembly. Check for buildup around the shedder bar holes and inside the meter.

6) When reassembling the vortex shedder bar assembly, reverse the above procedure making sure the arrow on the plate is aligned with the flow on the meter body.

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Figure 4.3.2: Disassembling and Reassembling the Vortex Shedder Assembly

4.4 RE ASSEMBLY CAUTIONS

1) Use a new gasket.

2) Orient the shedder bar with the wider surface upstream. Align the guide pin on the vortex shedder mounting block with the guide pin hole (1" - 4" flowmeters only). See figure 4.4.1.

3) Install the vortex shedder assembly properly.

4) Tighten all mounting bolts with a torque wrench. Use table 4.4.1 to determine the correct torque value.

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MAINTENANCE

Figure 4.4.1: Vortex Shedder Bar Orientation

6) After assembly, confirm that there is no leakage.

4.4.1 YEWFLO shedder bolt torque procedure

Table 4.4.1 summarizes the torque values which should be used when reinstalling a shedder bar in any YEWFLO Vortex meter. When reading this table, please keep the following in mind:

1) Use the TEFLON COATED GASKET table for all meters with teflon-coated gaskets.

2) Use the SILVER PLATED GASKET tables for all meters with silver-coated gaskets regardless of whether they have a high-temperature sensor.

3) For meters with four bolts, tighten alternate bolts to produce an even compression of the gasket.

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MAINTENANCE

BOLT TORQUE CHART

GREEN TEFLON COATED GASKET TORQUE

Size 1st 2nd 3rd 4th 5th

YF101 40 in-lb 70 in-lb 100 in-lb 140 in-lb

YF102,104 25 in-lb 60 in-lb 90 in-lb 105 in-lb

SILVER PLATED GASKET 1ST ROUND

Size 1st 2nd 3rd 4th 5th

YF102,104 30 in-lb 60 in-lb 90 in-lb 120 in-lb 152 in-lb

SILVER PLATED GASKET 2ND ROUND

Size 1st 2nd 3rd 4th 5th

YF102,104 30 in-lb 60 in-lb 90 in-lb 105 in-lb

Table 4.4.1

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4.5 YEWFLO STYLE "E" AMPLIFIER CALIBRATION PROCEDURE

Before calibrating the YEWFLO style E you will need to have the following tools on hand:

Item Recommended Instruments Remarks

±50mV)

Connect the amplifier as shown in 4.5.1. Apply power for at least five minutes before testing.

Before beginning, check to be sure that all parameter settings are as specified in the programming sheet which was included with the flowmeter instructions. If there is any discrepancy, correct the

Figure 4.5.1

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Note: For the remote amplifier, terminals A, B & C should be shorted together; otherwise, electrical noise

may interfere.

4.5.1 General amplifier check-out

a. Access parameter H06 (NOISE JUDGE) and set to “ NOT ACTIVE” .

b. Access parameter G02 (SPAN FREQUENCY) and record this value. Attach a calibrated

frequency generator to test points TP2 and COM2 and inject the same frequency as read in parameter G02.

c. Access parameter G01 (FREQUENCY) and confirm that this value agrees with the

d. If you wish to stop here, disconnect the frequency generator, return parameter H06 to

“ ACTIVE” . Otherwise, leave the frequency generator connected and parameters H06 and any correction functions deactivated and proceed to the next section to confirm amplifier calibration.

4.5.2 Analog output test

Before beginning this section, perform the amplifier checkout procedure, steps 4.5.1a - d above.

a. Check the PULSE/ANALOG jumpers on the front of the amplifier to be sure they are in the

correct position. Access (analog) parameter B02 (OUTPUT) and confirm the setting agrees with the jumper position.

b. With the frequency generator connected and injecting the frequency per Step 4.5.1b measure

the current being produced by the amplifier. The output should be 20 mA, ±.02 mA.

c. Remove the frequency generator and replace it with a shorting jumper and measure the

output. The output should be 4 mA, ±.02 mA.

d. If there is a discrepancy in the outputs measured in steps b and c, contact the Yokogawa

Industrial Automation Service Department for assistance at 1-800-524-7378. Otherwise, remove the jumper, return parameter H06 to “ ACTIVE” . Analog testing is complete.

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4.5.3 Pulse output test

Before beginning this section, perform the amplifier checkout procedure, steps a-d above.

a. Check the PULSE/ANALOG jumpers on the front of the amplifier to be sure they are in the

correct position (pulse). Access parameter B02 (OUTPUT) and confirm the setting agrees with the jumper position. Access parameter C02 (PULSE RATE) and set it to “UNSC*1” .

b. With the frequency generator connected and injecting the frequency per Step 4.5.1b, connect

a frequency counter across the “ -” and “ P” output screw terminals.

c. Check to be sure the frequency counter reads the frequency specified in Step 4.5.1b above

(±0.1%).

d. Remove the frequency generator and replace it with a jumper. Check to be sure the

frequency counter reads 0 Hz.

e. If there is a discrepancy in the outputs measured in Steps c and d, contact the Yokogawa

Industrial Automation Service Department for assistance at 1-800-524-7378. Otherwise,

remove the jumper, return parameter H06 to “ ACTIVE” , and return parameter C02 to your

required pulse rate setting. Testing is complete.

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PARAMETER SETTING/CONFIGURATION

V. PARAMETER SETTING/CONFIGURATION

parameters.

A symbol for delimiting a parameter setting item number and a parameter data

%; display mode

Instantaneous flow rate is displayed as 0.0 to 110.0%.

rate and totalized flow mode

are alternately displayed.

Instantaneous flow rate (engineering unit) and totalized flow rate

5.1 NOTES ON THE TBL OPTIONAL DIGITAL DISPLAY

The TBL digital display may be used to set most of the parameters required to configure the YEWFLO. In the Parameter list each item is marked to indicate whether that parameter can be set or not. Due to the limited number of digits available in the TBL display, the full item identification is not possible. Tables 5.1.1 and 5.1.2 describe the item numbers and their function on the TBL display.

Figure 5.1.1: Integral Indicator/Totalizer Display

Item Description

Display section: Displays data, units, parameter setting item numbers, and



Setting section:



Attach unit labels if those other than displayed units are to be used. Sets parameter item numbers and parameter data using setting keys.



Decimal point



S E T, S HI F T ,



Setting key



and

I NC

parameter

Table 5.1.1: Mode Name List

Display Mode

Number Name Contents

Instantaneous flow as an engineering unit is displayed using 0

1 Display in engineering unit mode

2 Display in totalized flow mode

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Display alternates between % flow

Display alternates between flow rate in engineering units and totalized flow mode Display alternates between instantaneous flow rates in engineering unit and %

Table 5.1.2: Description of display

to 32000. Totalized flow is displayed as 0 to 999999 without indicating the decimal point. Instantaneous flow rate (%) and totalized flow (engineering unit)

(engineering unit) are alternately displayed.

Instantaneous flow rates are alternately displayed as engineering units and percentage (%).

PARAMETER SETTING/CONFIGURATION

As shown on As shown on TBL As shown on As shown on TBL

Mode (status)

the BT100/BT200 TBL indicator/ the BT100/BT200 TBL indicator/

totalizer display totalizer display

B02 2 E03 E3 B03 3 F01 F1 B10 10 F02 F2 B11 11 G01 G1 B52 52 G02 G2 B53 53 G03 G3 C01 C1 G04 G4 C02 C2 G05 G5

C09 C9 G06 G6 D01 d1 H01 H1 D02 d2 H02 H2 D03 d3 H03 H3 D05 d5 H04 H4 D06 d6 H05 H5

E01 E1 H06 H6

E02 E2 H07 H7

5.1.1 Display contents in display section

Available modes include normal, setting and alarm number display. Each is described in detail in table 5.1.3.

No.

name

1 Normal mode --- A mode in which instantaneous flow rates or totalized values

2 Setting mode SET In this mode, parameter contents are confirmed or data is

3 Alarm number

display mode

Key

operation

are displayed. Display content is usually selected either in display content selection mode or by setting parameters via BRAIN™ communication.

updated using the setting section. The mode is changed to this mode when

--- This mode is overlapped when an alarm is occurring in normal mode. The alarm number presentation to indicate alarm contents (about 2 secs) and the normal data display (about 4 secs) are repeated alternatively.

Display contents

is pressed in normal mode.

S E T

Table 5.1.4: Display Mode Number List

• Normal Mode

The normal mode will display the instantaneous flow rate or totalized flow. The six available display modes are shown in Table 5.1.1.

To access the Setting mode press the S E T key which transfers to the “ setting mode” status.

The left two digits indicate the parameter item number and the four digits to the right of the “ : “ indicate the parameter data content.

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PARAMETER SETTING/CONFIGURATION

Figure 5.1.2: Integral Indicator/Totalizer Setting and Display Sections

Once in the “ SET” mode change the parameter item number using the I NC key and move the flashing digits using the S HI F T key. Press the s e t key to move to the setting mode. Change the parameter data value and the decimal point position using the I n c key and shift the flashing digit using the S HI F T key. Once the parameter has been set correctly, press the s e t key once. The entire display will then flash. Confirm the setting by pressing the s e t again. The flashing will stop. The parameter is then set. When all parameter settings have been correctly set, press s e t and S HI F T keys simultaneously. The display is now returned to the normal mode. If the setting has

been done outside the proper operating parameters, alarm is displayed.

• Setting Mode

The display mode can be changed using either the BT100 using parameter “ E02: Disp Select” or the

integral indicator/totalizer (TBL) by using the E2 parameter item.

Caution: While in the setting mode using the TBL, do not access the amplifier using the BT100, Centum

or XL distributed control system with BRAIN™ communications.

• Alarm Number Display Mode

When an alarm occurs, alarm number display and normal display are alternately displayed on the TBL to indicate an alarm condition exists, provided the TBL is in the normal mode.

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PARAMETER SETTING/CONFIGURATION

Sequence Key Operation Display Description

S E T

Press

I NC I NC

I NC

S H I F T I NC

S E T I NC

S E T

and

key

S H I F T

¤Flashing display position is changeable changeable Setting mode

¤[C1] is displayed. • Press ¤[d1] is displayed. • Press

¤Display contents are different from which values were set.

100.00%

0 2 :_ _0 0

E 1 :_ _0 0 • Press

E 1 :_ _0 0 E 2 :_ _0 0 •

E 2 :_ _0 0

123456 kg Mode returns to normal.

Normal mode Example of totalized value

• Press

• Parameter item number can be changed.

• When position moves to E.

I NC

• Next, press moves to far right.

¤Parameter contents can be set.

• Press

• Press display position to the far left.

key to enter setting mode.

S E T

key

I NC

key

I NC

INC

key

S H I F T

key is pressed, 1 changes to 2.

S E T S E T

key is pressed, flashing display

key, flashing display position

S E T

key once display is flashing. key once more to move flashing

Table 5.1.5: Display mode change sequence

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VI. ERROR CODES

Effect on Output

Effect on Indication via local Digital Display

Error

No.

Diagnostic

Message

Error definition and

Probability Cause

Current

Output

Pulse Output

Rate in %

Output

Rate in

Engineering

Units

Totalizer Corrective Action

Over

Output

This error signifies that the flow exceeds the meter span by over 110%.

Output driven to a fixed 110%.

Normal Operation

Indication is driven to a fixed 110% of the span.

Normal Operation

Respan the meter or correct the overrange condition.

Span Set

error

A span setting error indicates that the span velocity limits have been exceeded. (32 ft/sec for liquids and 262 ft/sec for gas). Sensor may be damaged. Contact Yokogawa Industrial Automation service department for analysis.

Output may be non-linear.

Correct the span setting in parameter B51 and B52 to meet the velocity limitations of the meter.

NJ circuit

error

Noise discrimination circuit is not functioning properly.

Normal Operation

Amplifier replacement required. Contact Yokogawa Industrial Automation service dept.

Pulse Out

error

The pulse output span has exceeded 6K Hertz.

Normal Operation

Output is limited to 6K Hertz.

Normal Operation

Check parameter settings, in particular C02.

EE Prom

error

EE prom is not functioning correctly.

Output is fixed at 1.25%.

No output

Output is fixed at -1.25%.

Output is fixed at 0.0%.

No output

Amplifier replacement required. Contact Yokogawa Industrial Automation service dept.

--- CPU error

The CPU has failed and the meter is not functioning. The display and selfdiagnostics are completely inoperable.

Output is fixed at 1.25%.

No output No output No output No output

Amplifier replacement required. Contact Yokogawa Industrial Automation service dept.

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6.1 ERROR CODE LISTING

TROUBLESHOOTING

6.2 OPERATING PROCEDURES

The Vortex shedding flowmeter is a frequency measuring device. The frequency is generated as described in the ‘ Principle of Operation’ section, and is linear and proportional to flow velocity. The electronics convert this frequency into a flow rate signal suitable for your process, providing either an Analog 4-20 mA or powered voltage pulse output.

This troubleshooting section is designed to familiarize you with the electronic circuit, and internal software operation.

Operating range:

Before proceeding, double check your process conditions and insure that the desired flow rate is within the operating range, greater than minimum (Qmin) and less than maximum (Qmax). Please reference the YEWFLO sizing program, or refer to section 1.4 Basic Sizing.

Electronic Circuit Operation:

If the operating flow rate is above Qmin, the vortex shedder with a piezoelectric sensor assembly should generate a frequency signal proportional to flow rate.

The following circuit configuration is a simplified block diagram of the actual circuit. Some details are left out for clarity.

Figure 6.2.1: Circuit Configuration

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1. Vortex Shedder (Sensor): The shedder bar assembly (sensor) may be integrally mounted to

the amplifier or remotely connected via a special signal cable. In any case, the piezoelectric crystal signal is amplified by a high impedance preamplifier circuit.

2. Noise Balance: The Noise Balance function maximizes the signal to noise (S/N) ratio by

mixing the two crystal input signals. One crystal measures primarily flow frequency. The other crystal measures primarily frequencies due to noise. This parameter is factory set, but on occasion may need to be adjusted after installation. By properly balancing these signals in a one time setup, the S/N ratio is maximized.

3. Gain: The balanced signal is then amplified by the gain stage. The gain is automatically set

when meter size and application (liquid or gas) are selected. This parameter should not normally be adjusted, unless directed by the factory.

4. After the gain stage the signal is split. One signal is used to measure frequency, proportional to flow velocity. The other signal is used to measure amplitude, proportional to fluid momentum, for Noise Judge calculations.

5. Band Pass and High Frequency (H.F.) Filter: The frequency signal is filtered by both a Band Pass filter and a High Frequency Filter. Filter settings are automatically set when meter size and application are selected.

6. The output of the filter stage may be measured by a voltmeter or viewed with an Oscilloscope at the TP2 and Com2 test points.

7. Trigger Level Adjustment (TLA): The filtered waveform is then converted to a square wave by comparing its amplitude to the Trigger Level Adjustment (TLA) setting. The resulting square wave may be viewed at the P and Com2 test points. The frequency of this square wave is directly proportional to velocity.

8. The flow rate frequency is then input to the CPU for further calculation.

9. Noise Judge circuit: Simultaneous to steps 5 through 8, the Noise Judge circuit measures the average signal amplitude.

10. The vortex signal is converted from an AC voltage to a DC voltage using a simple rectification circuit. The Noise Judge circuit then outputs a frequency proportional to signal amplitude.

11. The Noise Judge frequency is then input to the CPU for further calculation.

12. CPU input: The CPU then uses the frequency inputs to compute actual flow rate, and perform Noise Judge signal discrimination.

13. Circuit Output: Based on the software flow diagram (shown below) the CPU outputs a frequency proportional to flow rate. The CPU output frequency may be observed at the CPU PLS and COM1 test points. This frequency output is then converted based on the output selection jumpers to either a 4-20 mA current signal, or frequency.

14. Analog Output: If the software and jumpers are set for analog output, the CPU frequency is in the range of 1000 Hz to 5000 Hz. The frequency to current (f/i) circuit will convert this to 4-20 mA.

15. Pulse Output: If the software and jumpers are set for pulse output, the CPU frequency will be scaled (or unscaled) according to the software settings. The low level CPU frequency will be converted to a powered voltage output pulse by the pulse output driver circuit as shown.

Software calculation:

The equations at the end of this section describe how the flow rate is calculated from the input frequency. These equations are presented for reference only. It is not necessary to become familiar with them to operate a vortex flowmeter.

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TROUBLESHOOTING

The software configuration flow chart is a simplified diagram, some details are left out for clarity.

Figure 6.2.2: Software Configuration

1. The flow rate frequency is input to the CPU and displayed in parameter G01.

2. The Noise Judge then discriminates whether this signal is flow rate or noise, based on the settings of B08 (Min. Density) and H06 (Noise Judge). If noise judge determines the signal to be flow, it is passed to Low Cut.

3. The Low Cut function (performed by H07 L.C. Flow rate) determines if the signal frequency is greater than that input at H07, the Low Cut Flow rate. If the signal exceeds Low Cut, it is then passed on to be computed into an actual flow rate and appropriately scaled for output and totalization.

4. The resulting flow signal is then smoothed according to the damping value set in parameter B53.

5. Error correction functions are applied to the damped flow signal. Refer to the appropriate How to listing for details.

6. From this point the CPU calculates the appropriate values for analog and pulse output, and/or for totalization and rate display.

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6.3 FLOW COMPUTATION

The flowrate is computed with the following equations based on the N number of generated vortices:

• Flowrate (in engineering units)

RATE = N * 1

KT = KM * {1 - 4.81 x (Tf - 15) x 10-5} ...Metric Units KT = KM * {1 - 2.627 x (Tf - 15) x 10-5} ...English Units

• Flowrate (%) RATE (%) = RATE * 1

• Totalized value

TOTAL = N * εf * εe * εr * ε

* εf * εe * εr * ε

∆t KT S

*1 * UKT * Uk * 1

* UKT * Uk * 1

KT T

TOTAL = εf * εe * εr * ε

*N ...Unscaled

• Velocity

V = N * 1

* 1 * UKT* 1

∆t KT πD

• Reynolds number

Red = V * D * pf * 1

x 1000 ...Metric Units

Red = V * D * pf * 1

x 124 ...English Units

6.3.1 Variable definitions

N Input pulses counted Dt Sample time for N counts (seconds)

Reynolds number correction factor (D01 - D03) Pipe schedule correction factor (D05) Expansion correction factor for gas or steam (D06) Flow linearization correction factor (D20 - D30)

KT K-factor at operating temperature (pulses/litre) (pulses/gal) KM K-factor at 15ºC (59ºF) (B06) U

Unit conversion factor for K-factor Flow unit conversion factor (Refer to item (2))

Uk(user) Flow unit conversion factor for user's unit U

Factor corresponding to flow unit time (ex./m (minute) is 60) Span factor (ex. E + 3 is 103) (B51) Pulse rate (ex. E + 3 is 103) (C03) Temperature at operating conditions (ºC) (ºF) (B10)

M Mass flow H Calorimetric flow

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TROUBLESHOOTING

Volumetric flow at standard conditions Volumetric flow at operating conditions Density at operating conditions (B14 or B19) Specific enthalpy (kcal/kg), (Btu/lb) (B20) Standard temperature Operating pressure (kg/cm2abs), (psia) Standard pressure (kg/cm2abs), (psia) (B27)

K Deviation factor for gas (B28)

Density at standard temperature and standard pressure (kg/Nm3), (lb/scf) Flowrate span (B52)

Total rate (C01) D Internal diameter (m), (inch) (B03) µ viscosity (cP)

Density at operating conditions (kg/m3), (lb/ft3)

• Conversion factors

Unit conversion factors: U

k(kg)

Uk(Btu), Uk(scf), Uk(acf)

, Uk(cal), Uk(Nm3), Uk(m3), Uk(lb),

Kilogram conversion factors: U

Actual cubic feet conversion factors: U

K-factor conversion factors: U

= 1 for a kilogram

k(kg)

= 0.001 for a metric ton

k(kg)

= 1 for acf

k(acf)

= 7.481 for a gallon

k(acf)

1/1000 (litre m3)

0.3369 (USgal to actual cubic feet)

User's unit conversion factor Uk = Uk (user) (C09)

For more information, refer to How to setup user defined units in the How to section of this manual.

6.3.2 Flow conversion factor (Uk)

Flow conversion factor Uk is obtained from the following computation depending on the fluid selected (B04) and the flow units.

• Steam

M (Mass flowrate) U

H (Heat quantity) U

= ρ

= Uρ

* Uk(kg)

* Uk(lb)

* hf*Uhf * Uk(kg)

* hf*Uhf * Uk(lb)

Qf (Flowrate at operation) Uk = Uk (m3)

Uk = Uk (acf)

• Gas

Qn (Flowrate at STP)

M (Mass flowrate) U

= Pf * Tn + 273.15 * 1 * Uk (Nm3)

Pn Tf + 273.15 K

= ρf * Uρ

* Uk(kg)

* Uk(lb)

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Qf (Flowrate)

• Liquid

Qf (Flowrate) Uk = Uk (m3)

M (Mass flowrate) Uk = pf * U(kg)

6.4 SIGNAL CONDITIONING

6.4.1 YEWFLO Style “E” signal adjustment procedure

The YEWFLO Style “ E” vortex flowmeter is a powerful, microprocessor-based instrument whose noise discrimination functions have been factory-set for optimum performance based on customer supplied application information. For most applications, these factory settings are ideal and should not require adjustment by the user. However, difficult applications which generate a noisy output signal may require fine tuning of these functions in an effort to better discriminate signal from noise.

There are five parameters associated with these functions: noise balance, TLA, low-cut frequency, high-cut frequency and noise judge. This procedure will direct the user in the application of these functions based on installation specific symptoms. One or more of these adjustments should correct most of the problems that may be experienced. If problems persist, please contact our Technical Assistance Center (TAC) 800-524-7378.

= Uk (m3)

Uk = Uk (acf)

= 7.481 x ρ

* U(lb) (7.481 is a conversion factor of USgal into acf)

6.4.2 Problem solving

The type of problems that can be solved using this adjustment procedure include:

• Output occurrence with no flow

• Unstable output at low flow

• High output for a known flow rate

• High output (beyond programmed span)

Before making any adjustments, we recommend exploring other potential reasons and possible solutions for these problems by checking your piping.

6.4.3 Piping checkout procedure

Many noise problems can be solved by some simple changes to the overall piping design. Make the following checks:

• Make sure there is sufficient straight run upstream and downstream. For further recommendations, refer "Piping Requirements".

• Check the installation for excessive vibration - 1g max for gas applications and 2g max for liquid applications. If excessive vibration exists and the pipe is not braced, install appropriate bracing to dampen the vibration. High vibration piping may require remote mounting of the amplifier to reduce the amplitude of any transmitted vibration to the shedder bar. It also may be desirable to mount the meter so the shedder bar is perpendicular

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to the axis of vibration.

• Check the gaskets to be sure they don’ t protrude into the flow stream. If they do, trim them as required or reinstall them.

• Be sure that wafer style meters are aligned properly using any alignment devices supplied with the meter.

• If the meter is installed in non-conductive pipe, be sure the body is well grounded using an external strap.

If a remote amplifier is used, confirm the following:

1) The interconnecting cable was factory terminated. If not properly connected, check the termination. Refer to "Cable" for more information.

2) The remote electronics housing is w ell grounded.

3) Confirm the remote amplifier is correctly connected to the flowtube. If not properly connected, an unexpected output can be generated by the amplifier.

If one or more of the symptoms mentioned above still exist after the piping checkout procedure, perform the Noise Balance Adjustment procedure as follows:

6.4.4 Noise balance adjustment (parameter H01)

This adjustment balances the noise component in the output of the two piezoelectric crystals so that a high signal to noise ratio can be obtained. This is basically a null-balance type adjustment; in other words adjustment should be made throughout the range of possible values (-5 to +10) to determine the lowest noise setting. This is not a simple min/max value setting.

Adjustment is made with a full pipe and no flow. If flow cannot be stopped, the best adjustment is made at low flow rates (less than 1.6 f/s for liquids and 26 f/s for gas).

1) Connect an oscilloscope between test points TP2 and COM2 and observe the signal wave

form. Access parameter H01 and make adjustment throughout the range of possible values to

obtain the lowest noise component of the wave form. See Figure 6.4.1 below for wave form examples.

Figure 6.4.1: TP2-COM2 Waveform

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YOKOGAWA YFA11, YF100 User's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual