Yokogawa digitalYEWFLODY User Manual

User’s

Model DY

Manual

Vortex Flowmeter

(Integral Type, Remote Type)

Model DYA

Vortex Flow Converter

(Remote Type)

IM 01F06A00-01EN

16th Edition

i

Model DY Vortex Flowmeter

(Integral Type, Remote Type)

Model DYA Vortex Flow Converter

(Remote Type)

IM 01F06A00-01EN 16th Edition

Contents

1.	INTRODUCTION........................................................................................		1-1
	1.1	Using This Instrument Safety..........................................................................	1-2
	1.2	Warranty.............................................................................................................	1-3
	1.3	ATEX Documentation .......................................................................................	1-4

2.	HANDLING PRECAUTIONS.....................................................................			2-1
	2.1	Checking Model and Specifications ...............................................................		2-1
	2.2	Transportation and Storage Precautions.......................................................		2-1
3.	INSTALLATION		.........................................................................................	3-1
	3.1	Installation Precautions ...................................................................................		3-1
	3.2	Piping Precautions ...........................................................................................		3-1
	3.3	Maintenance ......................................................................................of Piping		3-5
	3.4	Cryogenic ...................and High Process Temperature Version Insulation		3-6
	3.5	Mounting .......................................................................................Procedures		3-6
4.	WIRING ......................................................................................................			4-1
	4.1	Load Resistance ............................................................of Output Condition		4-1
	4.2	Selection .............................................................................................of Wires		4-2
	4.3	Connection ........................................................................................................		4-2
	4.4	Connection ....................................................................of DYC Signal Cable		4-5
	4.5	End Processing ...............................................Method of DYC Signal Cable		4-6
		4.5.1 .............................................................	For Vortex Flowmeter (DY - N)	4-6
		4.5.2 ......................................................	For Vortex Flow Converter (DYA)	4-7
	4.6	Wiring Procedures ...............................................................and Precautions		4-8
	4.7	Grounding..........................................................................................................		4-9
5.	BASIC OPERATING .......................................................PROCEDURES			5-1
	5.1	Display Con ......................................................................................figuration		5-1
	5.2	Display Contents...............................................................................................		5-2
	5.3	Display Mode.....................................................................................................		5-3
		5.3.1 ......................	Changes to Engineering Display Unit from % Display	5-4
		5.3.2 ............................	Indicate the Total Rate in the Data Display(Lower)	5-5
	5.4	Setting Mode......................................................................................................		5-6
		5.4.1 ..............................................	Display Con fi guration of Setting Mode	5-6
		5.4.2 ..........................................................................	Data Setting Method	5-7

16th Edition : Oct. 2013(KP)	IM 01F06A00-01EN
All Rights Reserved, Copyright © 2001. Yokogawa Electric Corporation

ii

6.	PARAMETERS ..........................................................................................		6-1
	6.1	digitalYEWFLO Parameters.............................................................................	6-1
	6.2	Multi-Variable Type (/MV) Parameters.............................................................	6-1
	6.3	Parameters List .................................................................................................	6-1
	6.4	Parameters Description .................................................................................	6-11
	6.5	Self-Diagnostic (Error Code List)..................................................................	6-20

7.	OPERATION FOR THE BRAIN TERMINAL (BT200) ..............................		7-1
	7.1	Connection Method for the BT200 ..................................................................	7-1
	7.2	BT200 Screen and Displaying Flow Rate .......................................................	7-2
	7.3	Setting Parameters using BT200 ....................................................................	7-3

8.	OPERATION VIA HART CONFIGURATION TOOL (HART 5).................		8-1
	8.1	HART Protocol Revision ..................................................................................	8-1
	8.2	HART Configuration Tool and Matching of Device Revision.......................	8-1
	8.3	Setting Parameters using DTM .......................................................................	8-2

8.4Interconnection between digitalYEWFLO and

		HART Configuration Tool.................................................................................		8-2
	8.5	Basic Setup........................................................................................................		8-2
	8.6	Parameter Setting .............................................................................................		8-3
	8.7	Data Renewing and Upload/Download function ...........................................		8-3
	8.8	Self-Diagnostic..................................................................................................		8-3
	8.9	Software Write Protect .....................................................................................		8-3
	8.10	Specific Functions of HART Configuration Tool...........................................		8-3
		8.10.1	Burst Mode.........................................................................................	8-3
		8.10.2	Multidrop Mode ..................................................................................	8-4
		8.10.3 Switching HART Protocol Revision ...................................................		8-4
		8.10.4 Other Operations for the HART Configuration Tool...........................		8-5
	8.11	Menu Tree (HART 5)..........................................................................................		8-6
9.	OPERATION VIA HART CONFIGURATION TOOL (HART 7).................			9-1
	9.1	HART Protocol Revision ..................................................................................		9-1
	9.2	HART Configuration Tool and Matching of Device Revision.......................		9-1
	9.3	Setting Parameters using DTM .......................................................................		9-1

9.4Interconnection between digitalYEWFLO and

	HART Configuration Tool.................................................................................		9-2
9.5	Basic Setup........................................................................................................		9-2
9.6	Parameter Setting .............................................................................................		9-3
9.7	Data Renewing and Upload/Download function ...........................................		9-3
9.8	Self-Diagnostic..................................................................................................		9-3
9.9	Software Write Protect .....................................................................................		9-3
9.10	Specific Functions of HART Configuration Tool...........................................		9-3
	9.10.1	Process Variable Setup (Dynamic Variables)....................................	9-3
	9.10.2	Burst Mode.........................................................................................	9-4
	9.10.3	Event Notification...............................................................................	9-7

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iii

		9.10.4	Multidrop Mode ..................................................................................	9-8
		9.10.5 Loop Test, Simulation, and Squawk...................................................		9-9
		9.10.6 Switching HART Protocol Revision .................................................		9-12
		9.10.7 Other Operations for the HART Configuration Tool.........................		9-13
	9.11	Menu Tree (HART 7)........................................................................................		9-14
10.	OPERATION ............................................................................................			10-1
	10.1	Adjustment ......................................................................................................		10-1
		10.1.1	Zero Adjustment...............................................................................	10-1
		10.1.2	Span Adjustment..............................................................................	10-1
		10.1.3	Loop Test..........................................................................................	10-1
		10.1.4 Totalizer Start and Totalizer Reset ...................................................		10-2
		10.1.5 Setting of Pulse Output (Scaling).....................................................		10-2
		10.1.6 Setting of Burnout Switch.................................................................		10-2
		10.1.7 Setting of Write Protect Switch ........................................................		10-3
		10.1.8	Power Failure...................................................................................	10-3
	10.2	Adjustment for Manual Mode ........................................................................		10-3
		10.2.1	Low Cut Adjustment.........................................................................	10-3
		10.2.2	Zero Tuning......................................................................................	10-3
11.	MAINTENANCE.......................................................................................			11-1
	11.1	Changing the Converter and the Terminal Box Orientation.......................		11-2
	11.2	Indicator Removal and Rotation....................................................................		11-3
	11.3	Amplifier Unit Removal ..................................................................................		11-3
	11.4	Amplifier Unit Assembling.............................................................................		11-3
	11.5	Vortex Shedder Removal ...............................................................................		11-4
	11.6	Flow Calculation .............................................................................................		11-6
12.	TROUBLESHOOTING ............................................................................			12-1
	12.1	Large Errors or Unstable Output...................................................................		12-1
	12.2	The Indication Goes to Zero at Certain Time ...............................................		12-1
	12.3	No Output When The Fluid is Flowing..........................................................		12-2
	12.4	Output is Indicated at Zero Flow ...................................................................		12-3
	12.5	Multi-Variable Type (/MV)................................................................................		12-4
13.	GENERAL SPECIFICATIONS ................................................................			13-1
	13.1	Standard Specifications.................................................................................		13-1
	13.2	Model And Suffix Codes.................................................................................		13-5
	13.3	Option Specifications.....................................................................................		13-8

13.3.1Option Multi-Variable (Built-In Temperature Sensor)

		Type (/MV) .....................................................................................	13-10
	13.3.2	Option Reduced Bore Type (/R1, /R2) ...........................................	13-11
13.4	Sizing	..............................................................................................................	13-11
13.5	Detailed .........................................................................................Accuracy		13-13
13.6	Option ............................Specifications (For Explosion Protected Type)		13-20
13.7	External ....................................................................................Dimensions		13-22

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14.	EXPLOSION PROTECTED TYPE INSTRUMENT.................................		14-1
	14.1	ATEX.................................................................................................................	14-1
	14.2	FM .....................................................................................................................	14-4
	14.3	IECEx................................................................................................................	14-7
	14.4	CSA...................................................................................................................	14-9
	14.5	SAA.................................................................................................................	14-12
	14.6	TIIS..................................................................................................................	14-14
15.	PED (PRESSURE EQUIPMENT DIRECTIVE) .......................................		15-1

INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT

Revision Information

IM 01F06A00-01EN

<1. INTRODUCTION>

1-1

1.INTRODUCTION

Thank you for purchasing the digitalYEWFLO vortex flowmeter.

To ensure correct use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it.

■Regarding This Manual

•This manual should be provided to the end user.

•The contents of this manual may be changed without prior notice.

•All rights are reserved. No part of this manual may be reproduced in any form without Yokogawa’s written permission.

•Yokogawa makes no warranty of any kind with regard to this material, including, but not limited to, implied warranties of merchantability and suitability for a particular purpose.

•All reasonable effort has been made to ensure the accuracy of the contents of this manual. However, if any errors or omissions are found, please inform Yokogawa.

•The specifications covered by this manual are limited to those for the standard type under the specified model number break-down and do not cover custom-made instruments.

•Please note that this manual may not be revised for any specification changes, construction changes or operating part changes that are not considered to affect function or performance.

•Yokogawa assumes no responsibilities for this product except as stated in the warranty.

•If the customer or any third party is harmed by the use of this product, Yokogawa assumes no responsibility for any such harm owing to any defects in the product which were not predictable, or for any indirect damages.

■Safety and Modification Precautions

•The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific WARNINGS given elsewhere in

this manual violates safety standards of design, manufacture, and intended use of the instrument. Yokogawa assumes no liability for the customer’s failure to comply with these requirements. If this instrument is used in

a manner not specified in this manual, the protection provided by this instrument may be impaired.

•Yokogawa will not be liable for malfunctions or damage resulting from any modification made to this instrument by the customer.

•The following safety symbol marks are used in this manual and instrument.

WARNING

A WARNING sign denotes a hazard. It calls attention to procedure, practice, condition or the like, which, if not correctly performed or adhered to, could result in injury or death of personnel.

CAUTION

A CAUTION sign denotes a hazard. It calls attention to procedure, practice, condition or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of the product.

IMPORTANT

An IMPORTANT sign denotes that attention is required to avoid damage to the instrument or system failure.

NOTE

A NOTE sign denotes information necessary for essential understanding of operation and features.

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<1. INTRODUCTION>

1-2

1.1Using This Instrument Safety

(1) Installation

WARNING

•Installation of the vortex flowmeter must be performed by expert engineer or skilled

personnel. No operator shall be permitted to perform procedures relating to installation.

•The vortex flowmeter must be installed within the specification conditions.

•The vortex flowmeter is a heavy instrument. Be careful that no damage is caused to personnel through accidentally dropping

it, or by exerting excessive force on the vortex flowmeter. When moving the vortex flowmeter, always use a trolley and have at least two people carry it.

•When the vortex flowmeter is processing hot fluids, the instrument itself may become extremely hot. Take sufficient care not to get burnt.

•Where the fluid being processed is a toxic substance, avoid contact with the fluid and avoid inhaling any residual gas, even after the instrument has been taken off the piping line for maintenance and so forth.

•Do not apply excessive weight, for example, a person stepping on the vortex flowmeter.

•Do not open the cover in wet weather or humid environment. When the cover is open, stated enclosure protection is not applicable.

•When opening the cover, wait for more than 2 minutes after turning off the power.

•All procedures relating to installation must comply with the electrical code of the country where it is used.

(2) Wiring

WARNING

•The wiring of the vortex flowmeter must be performed by expert engineer or skilled

personnel. No operator shall be permitted to perform procedures relating to wiring.

•When connecting the wiring, check that the supply voltage is within the range of the voltage specified for this instrument before connecting the power cable. In addition, check that no voltage is applied to the power cable before connecting the wiring.

(3)Operation

WARNING

•Do not open the cover in wet weather or humid environment. When the cover is open, stated enclosure protection is not applicable.

•When opening the cover, wait for more than 2 minutes after turning off the power.

(4)Maintenance

WARNING

•Maintenance of the vortex flowmeter should be performed by the trained personnel having knowledge of safety standard. No operator shall be permitted to perform any operations relating to maintenance.

•Do not open the cover in wet weather or humid environment. When the cover is open, stated enclosure protection is not applicable.

•When opening the cover, wait for more than 2 minutes after turning off the power.

•Always conform to maintenance procedures outlined in this manual. If necessary, contact Yokogawa.

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<1. INTRODUCTION>

1-3

(5) Explosion Protected Type Instrument

WARNING

•The instruments are products which have been certified as explosion proof type instruments. Strict limitations are applied to the structures, installation locations, external wiring work, maintenance and repairs, etc. of these instruments. Sufficient care must be taken, as any violation of the

limitations may cause dangerous situations. Be sure to read Chapter 14 “EXPLOSION PROTECTED TYPE INSTRUMENT” before handling the instruments. For TIIS flameproof type instruments, be sure to read “INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT” at the end of this manual.

•Only trained persons use this instrument in the industrial location.

•Take care not to generate mechanical spark when access to the instrument and peripheral devices in hazardous locations.

(6)European Pressure Equipment Directive (PED)

WARNING

•When using the instrument in compliance with PED, be sure to read Chapter 15 “PED (PRESSURE EQUIPMENT DIRECTIVE)” before use.

1.2Warranty

•The terms of this instrument that are guaranteed are described in the quotation. We will make any repairs that may become necessary during the guaranteed term free of charge.

•Please contact our sales office if this instrument requires repair.

•If the instrument is faulty, contact us with concrete details about the problem and the length of time it has been faulty, and state the model and serial number. We would appreciate the inclusion of drawings or additional information.

•The results of our examination will determine whether the meter will be repaired free of charge or on an at-cost basis.

■The guarantee will not apply in the following cases:

•Damage due to negligence or insufficient maintenance on the part of the customer.

•Problems or damage resulting from handling, operation or storage that violates the intended use and specifications.

•Problems that result from using or performing maintenance on the instrument in a location that does not comply with the installation location specified by Yokogawa.

•Problems or damage resulting from repairs or modifications not performed by Yokogawa or someone authorized by Yokogawa.

•Problems or damage resulting from inappropriate reinstallation after delivery.

•Problems or damage resulting from disasters such as fires, earthquakes, storms, floods, or lightning strikes and external causes.

■Trademarks:

•‘digitalYEWFLO’, ‘DY’, ‘DYA’, ‘DYC’, and ‘BRAIN TERMINAL’ are registered trademarks of Yokogawa Electric Corporation. Company names and product names used in this material are registered trademarks or trademarks of their respective owners.

•In this manual, trademarks or registered trademarks are not marked with ™ or ®.

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<1. INTRODUCTION>

1-4

1.3ATEX Documentation

This is only applicable to the countries in European Union.

GB

SK

CZ

DK

I

LT

E

LV

EST

NL

PL

SF

SLO

P

H

F

BG

D

RO

S

M

GR

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<2. HANDLING PRECAUTIONS>

2-1

2.HANDLING PRECAUTIONS

The Model DY Vortex Flowmeter and Model DYA Vortex Flow Converter are thoroughly tested at the factory before shipment. When these instruments are delivered, perform a visual check to ascertain that no damage occurred during shipment.

This section describes important cautions in handling these instruments. Read carefully before using them.

If you have any problems or questions, contact your nearest YOKOGAWA service center or sales representative.

2.1Checking Model and Specifications

The model and important specifications are indicated on the name plate attached to the case. Verify that they are the same as those specified in the original order, refer to Chapter 13 “GENERAL SPECIFICATIONS .” In any correspondence, always give model (MODEL) and serial number (NO.) from the name plate.

4 ~ 20mA DC / PULSE	TAG NO.
MPa at 38°C
*1)
10.5 ~ 42V DC	3UA
*2)

2.2Transportation and Storage Precautions

If the instrument is to be stored for a long period of time after delivery, observe the following points.

(1)The instrument should be stored in its original packing condition in the storage location.

(2)Select a storage location that fulfils the following conditions:

•A place where it will not be exposed to rain or water

•A place subject to minimal vibrations or shocks

•Temperature and humidity levels should be as follows:

Temperature:-40 to +80°C

Humidity:5 to 100% RH (no condensation) The preferred ambient temperature and humidity levels are +25°C and approximately 65% RH.

(3)If the digitalYEWFLO vortex flowmeter is transferred to the installation site and stored without being installed, its performance may be impaired due to the infiltration of rainwater and so forth. Be sure to install and wire the digitalYEWFLO vortex flowmeter as soon as possible after transferring it to the installation location.

(4)The vortex flowmeter is a heavy instrument. Be careful that no damage is caused to personnel through accidentally dropping it, or by exerting excessive force on the vortex flowmeter. When moving the vortex flowmeter, always use a trolley and have at least two people carry it.

F0201.ai

Figure 2.1(a) Example of Name Plate for Integral Type

TAG NO.

MPa at 38°C

*1)

3WA

*2)

4 ~ 20mA DC / PULSE	TAG NO.
*1)
10.5 ~ 42V DC	3YA
*2)
	F0202.ai

Figure 2.1(b) Example of Name Plate for Remote Type

*1): K factor at + 15°C

*2): The product - producing country.

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<3. INSTALLATION>

3-1

3.INSTALLATION

WARNING

This instrument must be installed by expert engineer or skilled personnel. The procedures described in this chapter are not permitted for operators.

3.1Installation Precautions

(1)Ambient Temperature

Avoid an area which has wide temperature variations. When the installation area is subjected to heat radiation from process plant, ensure adequate heat prevention or ventilation.

(2)Atmospheric Conditions

Avoid installing the vortex flowmeter in a corrosive atmosphere. When the vortex flowmeter must be installed in a corrosive atmosphere, adequate ventilation must be provided

(3)Mechanical Shock or Vibration

The vortex flowmeter is of sturdy construction, but select an area subject to minimize mechanical vibration or impact shock. If

the flowmeter is subject to vibrations, it is recommended that pipeline supports to be provided as shown in Figure 3.1.

digitalYEWFLO Vortex Flowmeter

Pipeline

Pipeline Support

F0301.ai

Figure 3.1 Example of Pipeline Support

(4) Precautions Regarding Piping

(a)Ensure that the process connector bolts are tightened firmly.

(b)Ensure that no leak exists in the process connection pipeline.

(c)Do not apply a pressure higher than the specified maximum working pressure.

(d)Do not loosen or tighten the flange mounting bolts when the assembly is pressurized.

(e)Handle the vortex flowmeter carefully when measuring dangerous liquids, so that the liquids do not splash into eyes or on face. When using dangerous gases, be careful not to inhale them.

(5) Other Considerations

•Choose a location where is sufficient clearance around digitalYEWFLO exist to allow such work as routine inspections.

•Choose a location that ensures easy wiring and piping.

3.2Piping Precautions

Straight Pipe Length and Recommendations

Refer to Table 3.1 about Valve Position and Straight Pipe Length and so on.

●Piping support

Typical vibration immunity level is 1G for normal piping condition.Piping support should be fixed in case of over 1G vibration level.

●Installation direction

If a pipe is always filled with liquids, the pipe can be installed vertically or at inclined angle.

●Adjacent pipes

The process pipline inner diameter should be larger than the digitalYEWFLO inner diameter.

Use the following adjacent pipe.

	Model Code	Adjacent Pipe
	DY015 up to DY050	Sch40
		or larger inner
	DY025/R1 up to DY080/R1
		diameter than
	DY040/R2 up to DY100/R2
		Sch40
	DY080 up to DY400	Sch80
		or larger inner
	DY100/R1 up to DY200/R1
		diameter than
	DY150/R2 up to DY200/R2
		Sch80

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<3. INSTALLATION>

3-2

Table 3.1 (a) Straight pipe length and recommendations (1)

D: Nominal diameter (mm)

Description

Figure

Reducer pipe:

digitalYEWFLO

Ensure the upstream straight pipe length to be 5D or more, and the

Flow

downstream straight pipe length to be 5D or more for per reducer

pipe.

5D or more

5D or more

Reducer

Expander pipe:

digitalYEWFLO

Ensure the upstream straight pipe length to be 10D or more, and

Flow

the downstream straight pipe length to be 5D or more for per

expander pipe.

Expander

10D or more

5D or more

Bent pipe and straight pipe length:

1.

digitalYEWFLO

1. Single bent pipe

Flow

10D or more

5D or more

digitalYEWFLO

2. Double bent pipe; coplanar

2.

Flow

10D or more

5D or more

digitalYEWFLO

3. Double bent pipe; non coplanar

3.

Flow

20D or more

5D or more

Valve position and straight pipe length:

digitalYEWFLO

Install the valve on the downstream side of the flowmeter.

The upstream straight pipe length dependent on the element

located on the upstream such as reducer/expander, bent and etc.,

Refer to each element above for

refer to description as above. Keep 5D or more for downstream

straight pipe run.

straight pipe length.

In case the valve has to be installed on the upstream of the

Flow

Valve

digitalYEWFLO

flowmeter, ensure the upstream straight pipe length to be 20D or

more, and the downstream straight pipe length be 5D or more.

20D or more

5D or more

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<3. INSTALLATION>

3-3

Table 3.1 (b) Straight pipe length and recommendations (2)

D: Nominal diameter (mm)

Description

Figure

Fluid vibration:

digitalYEWFLO

For a gas line which uses a position-type or roots-type blower

compressor or a high-pressure liquid line (about 1MPa or more)

which uses piston-type or plunger-type pump, fluid vibrations may

be produced.

In these case, install valve on the upstream side of digitalYEWFLO.

digitalYEWFLO

For inevitable fluid vibration, put a vibration damping device such

as throttling plate or expansion section in the upstream side of

digitalYEWFLO.

Piston-type or plunger pump:

Install the accumulator on the upstream side of digitalYEWFLO to

reduce fluid vibrations.

digitalYEWFLO

Valve positon (T-type piping exist):

When pulsation causes by a T-type piping exist, install the valve on

Relocating

digitalYEWFLO

the upstream of the flowmeter.

Flow

Valve (Off)

Example: As shown in the figure, when the valve V1 is turned off,

the fluid flow throught B as to meter A the flow is zero. But due to

B

the pulsating pressure is detected, the meter is zero point become

fluctuating. To avoid this, change the valve V1 location to V1'.

V1’

V1

Note: In case of the Reduced Bore Type, moisture may be

A

remained upstream of the flowmeter. Drain it appropriately.

Pressure and Temperature Taps:

Pressure tap

Pressure tap outlet: install this tap between 2D and 7D on the

digitalYEWFLO

Temperature tap

downstream side of a flowmeter.

Temperature tap outlet: install this on the downstream side 1D to

Upstream

2D away from a pressure tap.

Flow

downstream

2 to 7D

1 to 2D

Mounting Gasket:

digitalYEWFLO

Avoid mounting gaskets which protrude into the pipe line. This may

cause inaccurate readings.

Use the gaskets with bolt holes, even if digitalYEWFLO is the wafer

type.

When using a spiral gasket (without bolt holes), confirm the size

with the gasket -manufacturer, as standard items may not be used

Pipeline Flange

for certain flange ratings.

Pipeline

No good

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<3. INSTALLATION>

3-4

Table 3.1 (c) Straight pipe length and recommendations (3)

	Description	Figure
	Heat-Insulation:	digitalYEWFLO	digitalYEWFLO
	When an integral-type flowmeter or a remote type detector is
	installed and the pipe carrying higt-temperature fluids is heat-	Bracket	Nozzle
	insulated, do not wrap adiabatic materials around the installation	Heat-Insulator	Heat-Insulator
	the bracket (DY015 to DY100) or the nozzle (DY150 to DY400) of
	the converter.

Note: Refer to Section 3.4 "Cryogenic and High Process

Temperature Version Insulation" and install it rightly.

[DY015 to DY100] [DY150 to DY400]

Flushing of the pipe line:						digitalYEWFLO
Flush and clean scale, incrustation and sludge on the inside of
pipe for newly installed pipe line and repaired pipe line before the
operation. For flushing, the flow should flow through bypass-piping
to avoid damaging the flowmeter. If there is no bypass-piping,
install short pipe instead of the flowmeter.
								Short pipe

 Mounting Precautions

WARNING

In case of high process temperature, care should be taken not to burn yourself because the surface of body and case reach a high temperature.

(1) Gas or Steam Measuring Precautions

•Piping to Prevent Standing Liquid

Mount digitalYEWFLO in a vertical pipeline to avoid liquid traps. When digitalYEWFLO is installed horizontally, raise that part of the pipeline in which the digitalYEWFLO is installed.

(Good)

(Good)
			Flow

Flow

(No Good)

Flow

F0302.ai

(2)Liquid Measurement Precautions

To insure accurate measurement, the digitalYEWFLO must always have a full pipe.

•Piping Requirements for Proper Operation Allow the flow to flow against gravity. When the flow is moving with gravity, lift the downstream pipe length above the digitalYEWFLO installation level to maintain full pipeline.

Flow

(No Good)

(No Good)

Flow

(Good)

h h>0

(Good)

h

Flow

Flow

h>0

F0303.ai

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<3. INSTALLATION>

3-5

•Piping for Avoiding Bubbles

Flows containing both gas and liquid cause problems. Avoid gas bubbles in a liquid flow. Piping should be carried out to avoid bubble generation.

Install the valve on the downstream side of the flowmeter because pressure drop across the control valve may cause gas to come out of the solution.

(Good)				(No Good)
		Control
		Value

Flow

(Good)

Flow

Flow

(No Good)

F0304.ai

(3) Multi-Phase Flow

digitalYEWFLO can measure gas, liquid and steam when there is no change in state. However, accurate measurement of mixed flows (e.g. gas and liquid) is not possible.

(No Good)

Mist flow

(No Good)

Liquid

Flow

Stratified flow (No Good)

Gas Flow

Bubble flow	F0305.ai

(4) Pipeline Diameter and digitalYEWFLO

The process pipeline inner diameter should be slightly larger than the vortex flowmeter inner diameter, schedule 40 or lower pipe should be used for 1/2 to 2 inch flowmeters and schedule 80 or lower pipes for 3 to 16 inch flowmeters.

(No Good)

(Good)

D2

D2

D1

D1

D1 < D2

D1 D2

F0306.ai

(5)Waterproof Construction

The vortex flowmeter is of IP67, Type 4X, JIS C 0920 watertight protection. However, it cannot be used under water.

3.3Maintenance of Piping

(1) Pipe cleaning

•Flushing of pipe line (Cleaning)

Flush and clean scale, incrustation and sludge on the inside of pipe wall for newly installed pipe line and repaired pipe line before the operation.

•Fluid Carrying Solids

Do not measure fluids that carry solids (e.g. sand and pebbles). Make sure users periodically remove solids adhering to the vortex shedder.

•Obstruction of flow fluids may cause to make a chemical reaction and the fluid will be

crystallized and hardened, and be deposited on the pipe wall and shedder bar.

In those cases, clean shedder bar.

(2)Bypass piping

Bypass piping is convenient for the maintenance of digitalYEWFLO (vortex shedder cleaning, etc.).

Bypass shut-off valve

digitalYEWFLO

Flow

Upstream shut-off valve		Downstream shut-off valve
		F0307.ai

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3-6

3.4Cryogenic and High Process Temperature Version Insulation

When you are using Cryogenic and High Process Temperature version of digitalYEWFLO Vortex Flowmeter (Option code: /HT, /LT), refer to following contents.

Installing Cryogenic Version

For cryogenic applications, use stainless steel mounting bolts and nuts to install the flowmeter. These can be ordered separately from YOKOGAWA. Cover the flowmeter body with heat insulating material so that the flowmeter can be maintained at ultra-low temperatures.

Maintenance for Cryogenic Applications

DY/LT uses special materials that produce vortex flowmeter for cryogenic applications. When you are replacing a shedder bar, specify Cryogenic Version shedder bar. To avoid condensing in the terminal box, ensure that the wire connecting port is well sealed.

Bracket

Cold insulating material

F0308.ai

Installing High Process Temperature Version

Installation of the flowmeter is the same as the standard type. Cover the flowmeter body with heat insulating material following instruction of “CAUTION”.

CAUTION

Keep the upper limit of heat insulating material to prevent overheating of the terminal box.

Seal the Heat-Insulator to avoid hot-air leakage.

50mm min.

50mm min.

UPPER LIMIT OF

UPPER LIMIT OF

Heat-Insulator

Heat-Insulator

Nominal Size: 100mm or under

Nominal Size: 150mm or over

F0309.ai

Maintenance for High Process Temperature Applications

DY/HT uses special materials that produce vortex flowmeter for High Process Temperature applications When you are replacing a shedder bar or a gasket, specify High Process Temperature Version.

3.5Mounting Procedures

WARNING

The Vortex Flowmeter is a heavy instrument. Please be careful to prevent persons from injuring whin it is handled.

Before installing the instrument verify the following. The direction of flow should match to the arrow mark on the instrument body. When changing the orientation of the terminal box, refer to Chapter 11 “MAINTENANCE.”

1.Installation of Vortex flowmeter of the wafer and flange type is shown in Table 3.3.

When installing the wafer type vortex flowmeter, it is important to align the instrument bore with the inner diameter of the adjacent piping.

To establish alignment, use the four collars supplied with the instrument.

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3-7

•Four collars are supplied for 1/2 inch (15mm) to 1- 1/2inch (40mm), 2 inch of JIS 10K or ANSI class 150, and 3 inch of ANSI class 150. Install the instrument as illustrated in Table 3.3.

•If the adjacent flanges have eight bolt holes, insert the stud bolts in the holes on the instrument shoulder.

•Stainless steel stud bolts and nuts are available on order. When they are to be supplied by the user, refer to Table 3.2 for stud bolt length. Gaskets must be supplied by the user.

Pipeline Flange

Pipeline

F0311.ai

2.Avoid mounting gaskets which protrude into the pipeline. This may cause inaccurate readings. Use gaskets with bolt holes, even if digitalYEWFLO is of the wafer type.

When using a spiral gasket (without bolt holes), confirm the size with the gasket-manufacturer, as standard items may not be used for certain flange ratings.

Table 3.2 Flange Rating

	Size		Major Diameter of
			External Threed	Length
	mm	Flange Rating
			of Stud Bolt d	(mm)
	(inch)
			(mm)
	15mm	JIS 10K, 20K/DIN 10,
	(1/2B)	16,25,40	12	160
		JIS 40K	16	160
		ANSI 150, 300, 600	12.7	155
	25mm	JIS 10K, 20K, 40K	16	160
	(1B)	ANSI 150	12.7	155
		ANSI 300, 600	15.9	160
		DIN 10, 16, 25, 40	12	160
	40mm	JIS 10K, 20K/DIN 10,
	(1-1/2B)	16, 25, 40	16	160
		JIS 40K	20	170
		ANSI 150	12.7	155
		ANSI 300, 600	19.1	170
	50mm	JIS 10K, 20K, 40K/ DIN
	(2B)	10, 16, 25, 40 ANSI	16	200
		150, 300, 600	15.9	200
	80mm	JIS 10K/DIN 10, 16,
	(3B)	25, 40	16	220
		JIS 20K, 40K	20	240
		ANSI 150	15.9	240
		ANSI 300, 600	19.1	240
	100mm	JIS 10K/DIN 10, 16	16	220
	(4B)	JIS 20K/DIN 25, 40	20	240
		JIS 40K	22	270
		ANSI 150	15.9	240
		ANSI 300	19.1	240
		ANSI 600	22.2	270

Length "

d

Stud Bolt

Collar

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			<3. INSTALLATION>		3-8
Table 3.3 (a) Installation of Wafer Type Vortex Flowmeter
Wafer type			Description
When Installation Collar are required, the		Horizontal Installation
			Electrical
installation vortex flowmeters applied to the			Connection
following line sizes and flange ratings.
			Flange
	Flange Rating		Flow
Size mm (inch)			Direction
15 to 40	All ratings		Nut	Flange
(1/2 to 1-1/2)
				Bolt (4 pcs.)
	JIS 10K, ANSI class 150,		Gasket
50(2)
	DIN PN10 to PN40
80(3)	ANSI class 150		Collar (4 pcs.)
			Gasket	Nut
WARNING		Vertical Installation
			Nut
The inside diameter of the gasket must			Gasket	Flange
be larger than the pipe inner diameter
so that it will not disturb the flow in the
pipeline.
			Collar (4 pcs.)
				Electrical
WARNING				Connection
			Gasket
When installing the Flowmeter vertically in the				Flange
open air, change the electrical connection port
direction to the ground. If the electrical
connection port is installed upwards, rain				Bolt (4 pcs.)
water might leak in.
				Nut
WARNING			Flow Direction
In case of vertical installation, two collars in		(1) Insert two collars on each two bolts of bottom side of the flowmeter.
the upper part might move after the		(2) Fit the flowmeter body to the collars. And tighten the four bolts and nuts
installation. But it doesn't influence the			uniformly.
performance, please use the flowmeter under		(3) Check for leakage from the flange connections.
such condition.
When Installation Collars are not required,the		Horizontal Installation		Vertical Installation
		Flow	Electrical Connection
installation vortex flowmeters applied to the		Direction
following line sizes and flanges.
Size mm (inch)	Flange Rating	Nut	Bolt Hole
				Flange
	JIS 20K, 40K
50(2)
	ANSI class 300,600	Stud Bolt (8 pcs.)
	JIS 10K, 20K, 40K
80(3)			Flange
	ANSI class 300, 600
			Gasket
100(4)	JIS 10K, 20, 40K
	ANSI class 150, 300, 600
			Gasket
			Nut
		(1) Insert two stud bolts in the bolt holes		Electrical
				Connection
			on the flowmeter shoulder to align
			the instrument body with the inner
			diameter of the adjacent piping.

(2)Tighten all bolts uniformly and check that there is no leakage between the

instrument and the flanges.	Flow
		Direction
		F0312.ai

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3-9

Table 3.3 (b) Installation of Flange Type Vortex Flowmeter

Flange type

Description

Use the stud bolts and nuts supplied with the

flowmeter of the user. Horizontal Installation

The gaskets should be supplied by the user.

	Flow Direction
		Flange
CAUTION	Nut	Flange
	Stud Bolt
The inside diameter of the gasket must be		Gasket
larger than the pipe inner diameter so that it		Nut
will not disturb the flow in the pipeline.
		Gasket

Flow Direction

Vertical Installation

F0313.ai

Table 3.3 (c) Installation of Remote Type Converter

Remote type converter			Description
CAUTION	The converter is mounted on a 2-inch (60.5mm outer dia.) stanchion or horizontal
A signal cable (DYC) is used between the	pipe.
	Do not mount the converter on a vertical pipe. It makes wiring and maintenance
remote type flowmeter and the converter.	difficult.
The maximum signal cable length is 97.5ft	The converter mounting orientation can be changed as illustrated below.
(30m).	Stanchion			Mounting
		Mounting	Horizontal Pipe

Nut

Bracket

2-inch Pipe

U-Bolt

F0314.ai

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4-1

4.WIRING

WARNING

The wiring of the vortex flowmeter must be performed by expert engineer or skilled

personnel. No operator shall be permitted to perform procedures relating to wiring.

CAUTION

Once all wiring is complete, check the connections before applying power to the instrument. Improper arrangements or wiring may cause a unit malfunction or damage.

4.1Load Resistance of Output Condition

Be sure to observe the following precautions when wiring:

CAUTION

•In cases where the ambient temperature exceeds +50°C (+122°F), use external heatresistant wiring with a maximum allowable temperature of +70°C (+158°F) or above.

•Do not connect cables outdoors in wet weather in order to prevent damage from condensation and to protect the insulation.

•Do not splice the cable between the flowtube terminal and the converter if it is too short. Replace the short cable with a cable that is the appropriate length.

•All the cable ends must be provided with round crimp-on terminals and be securely wired.

•Be sure to turn power off before opening the cover.

•Before turning the power on, tighten the cover securely.

•Explosion protected types must be wired in accordance with specific requirement (and, in certain countries, legal regulations) in order to preserve the effectiveness of their explosion protected features.

•The terminal box cover is locked by the Locking Screw. In case of opening the terminal box cover, use the hexagonal wrench attached.

•Be sure to lock the cover by the Locking Screw using the hexagonal wrench attached after installing the cover.

Table 4.1 shows the connection method of several output conditions.

(1)Analog Output (4 to 20 mA DC)

This converter uses the same two wires for both, the signal and power supply. A DC power supply is required in a transmission loop.

The total leadwire resistance including the instrument load and power distributor (supplied by the user) must conform to a value in the permissible load resistance range. Refer to Figure 4.1.

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	600
)	E–10.5		Communication
(	R= 0.0236
			Applicable range
R			BRAIN and HART
resistance
	250
Load
	10.5	16.4	24.7	30	42

Power Supply Voltage E (V)

F0401.ai

Figure 4.1 Relationship between Power Supply Voltage and Load Resistance (4 to 20 mA DC Output)

(2)Pulse output and Alarm, Status Output

This version uses three wires between the converter and the power supply. A DC power and load resistance are required, and pulse output is connected to a totalizer or an electric counter. Low level of the pulse output is 0

to 2V. No communication is possible over a transmission line. Communication via the

amplifier board is always possible irrespective of the wiring condition.

(3)Simultaneous Analog-Pulse Output

When using digitalYEWFLO in the simultaneous analog -pulse output mode, the communicable distance of the transmission line is restricted on the wiring method. Table 4.1 shows the examples of connection for this output mode. Communication via the amplifier board is always possible irrespective of the wiring condition.

IMPORTANT

For pulse output and the simultaneous analogpulse output ,use the load resistance. Refer to Table 4.1.

4.2Selection of Wires

The following should be taken into consideration when selecting cables for use between the converter and distributor.

(1)Use 600V PVC insulated wire or equivalent standard wire or cable.

(2)Use shielded wire in areas susceptible to electrical noise (both analog and pulse output versions).

(3)In areas with high or low ambient temperatures, use wires or cables suitable for such temperatures.

(4)In atmospheres where oils or solvents, corrosive gases or liquids may be present, use suitable wires or cables.

(5)Use cable which withstand temperature up to +60°C and more, when ambient temperature is more than +60°C.

IMPORTANT

For the remote type, use DYC signal cable to connect the converter and remote type flowmeter(DY-N).

4.3Connection

Table 4.1 shows the connection sample of connection for power supply and load resistance. The terminal position of each connection is shown in Figure 4.2.

Integral type			Remote type
	Supply		4 to 20 mA DC Output Power Supply
	+		and Output Signal Terminals
	–
	Pulse		Pulse Output Terminal
	+
			Grounding Terminal
			F0402.ai

Figure 4.2 Terminal Position

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Table 4.1 (a) The wiring example for the analog and pulse and status, alarm output.

Connection		Description
Analog Output	digitalYEWFLO Electrical Terminal		Distributor
		+
In this case, Communication	SUPPLY +		24V DC
is possible (up to a distance
of 2km when a CEV cable is	–
used.)		–	250Ω
	PULSE +
Pulse Output	digitalYEWFLO Electrical Terminal			Use the Three-wire shielded cable.
In this case, No	Shielded Cable
	SUPPLY +		E	This supply voltage requires
communication is possible.
				a power sourse with a
	–			maximum output current of
	PULSE +	*2 R	*1	no less than E/R+25mA.
			Electric counter
Status Output	digitalYEWFLO Electrical Terminal			Use the Three-wire shielded cable.
Alarm Output
	Shielded Cable
			E
In this case,	SUPPLY +			Relay
No communication is
	–
possible.
	PULSE +			Magnetic
		External Power supply		valve
		30V DC, 120mA max
		(Contact Rating)
				AC power supply

*1: To avoid the influence of external noise, use an electric counter which fits to the pulse frequency.

*2: Resistor is not necessary in case of an electric counter which can receive contact pulse signal directly.

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Table 4.1 (b) The wiring example for the simultaneous analog and pulse output, the calculation formula of the range of load registance R for the pulse output.

Connection				Description
Simultaneous	When analog and pulse output are used, the length of communication line is subjected to wiring conditions. Refer to
Analog	example 1 to 3. If the communication carries out from amplifier, no need to consider wiring conditions.
-Pulse Output *3			Shield		Distributor (or communication medium)
Example 1			Shielded Cable			For the shielded cables in this
In this case, Communication		+			24V DC	example of flowmeter installation,
is possible(up to a distance						use two-wire separately
of 2km when a CEV cable is	SUPPLY				250	shielded cables. *4
		–	Outer Jacket	(R)*2
used).					E(10.5 to 30V DC)	This supply voltage requires a
	PULSE +
					Counting input	power sourse with a maximum
						output current of no less than
	digitalYEWFLO Electrical Terminal				Common	E/R.
				Electric counter *1 (or communication medium)

Example 2

Shield

Recorder or

For the shielded cables in this

In this case, Communication

Shielded Cable

other instrument

example of flowmeter installation,

is possible (up to a distance

use two-wire separately shielded

of 200m when a CEV cable

+

cables. *4

E(16.4 to 30V DC)

This supply voltage requires a

is used) and R = 1kΩ).

SUPPLY

(R)*2

power sourse with a maximum

–

Outer Jacket

output current of no less than

PULSE +

Counting input

E/R+25mA.

Common

The supply voltage requires output

impedance no more than 1/1000

Electric counter *1 of R (load resistance).

digitalYEWFLO Electrical Terminal

(or communication medium)

Example 3

Recorder or

In this case, No communi

other instrument

-cation is possible (when

shielded cable is not used).

E(16.4 to 30V DC)

This supply voltage requires

SUPPLY +

(R)*2

a power sourse with a

–

maximum output current of

Counting input

no less than E/R+25mA.

PULSE +

Common

digitalYEWFLO Electrical Terminal

Electric counter *1

(or communication medium)

The range of load

The load resistance should be selected by calculation as shown below.

resistance R for the

E (V)

0.1

pulse output.

R (k )

Example of CEV cable capacitance

120

C ( μF ) × f ( kHz )

0.1μF/km

E2 (V)

Where

C = Cable capacitance (μF)

E = Supply voltage (V)

P (mW) = R (k )

f = Frequency of pulse output (kHz)

P = Power ratio of the load resistance

R = Value of load resistance (k )

(mW)

*1: To avoid the influence of external noise, use an electric counter which fits to the pulse frequency.

*2: Resistor is not necessary in case of an electric counter which can receive contact pulse signal directly.

*3: When using analog and pulse output simultaneously, the HART communication may be influenced by noise comparing analog output only.

*4: Signal Cable for ADMAG AXF, AXFC-0 (No Termination) is available.

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4.4Connection of DYC Signal Cable

The remote type signal cable is shown in Figure 4.3 and Figure 4.4, and the terminal is shown in Figure 4.5.

The maximum cable length is 30 m (97.5 feet). Remove terminal box cover and wiring connection dust-cap before wiring.

For remote type the converter has two electrical connections (cable inlets). Use the left connection as viewed from the terminal box for the DYC signal cable and the right connection for the transmission cable.

If a signal cable kit is supplied by YOKOGAWA, both ends of the cable must be finished in accordance with the following instructions. Refer to Section 4.5 “End Processing Method of DYC Signal Cable“.

T

A

B

C

Flowmeter(DY-N)

DYC

T

A

B

C

Converter(DYA)

	C	T: Only for /MV
		B	Input Terminal from built-
		T
T			in temperature sensor
		A	Input Terminals from
	A	B	vortex detector
Detector (DY-N.../E1)		C	Common Terminal
			F0405.ai
Figure 4.5	Terminal of Detector and Converter

Signal Cable(DYC)	Vortex Flow Converter

CAUTION

After completing the signal cable connections, install the shielded cover to signal cable terminal as shown in Figure 4.6.

Unit : mm

C

B

A

T

T

A

B

C

(Black) (White)

(Red)

(Yellow)

(Yellow)

(Red)

(White)

(Black)

80	70	70	80
	60	60
	50	50

20	25	95 (Blue)

Flowmeter			Specified
			Length (L)
			30m (max.)
		DYC
		T: Only for / MV

Figure 4.3 DYC Signal Cable

Outer shield

To Flowmeter

(Yellow) T

(Red) A

(White) B

(Black) C	Inner shield
	T: Only for / MV

Converter

F0403.ai

To Converter

T (Yellow)

A (Red)

B (White)

C (Black)

(Bule)

F0404.ai

Figure 4.4 Construction of DYC Signal Cable

Shield Cover

Power Cable

F0406.ai

Figure 4.6 Shielded Cover

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4.5End Processing Method of DYC Signal Cable

4.5.1 For Vortex Flowmeter (DY-N)
	Description			Figure
1	Strip off the outer polyethylene jacket, outer braided			5 (0.2) 10 (0.4)	Unit : mm
	shield and inner jacket, and inner braided shield as				(approx. inches)
	per the dimensions below.			5 (0.2)
				90 (3.5)
				Conductive Layer (Black)
				T*1 (Yellow)
2	Strip off the black conductive layer convering two	T*1	(Yellow)	40 (1.6)5 (0.2)
	wires completely, as per the dimensions below.			3 (0.1)
		A (Red)		or less
	Twist each of the conductor and drain wires so that
	there are no free strands.

50 (2.0)

Conductive Layer (Black)

60 (2.4)

B (White)

3Do not short-circuit the conductive layer and the terminals (A, B, C and T*1).

4	Strip off about 5 mm (0.2 in.) of insulation for each	Drain wires
	of wires A, B, and T*1, and twist the strands of each	C (Black)		T*1 (Yellow)
	wire. Twist the inner and outer drain wires together.	A (Red)
		B (White)		5 (0.2)
		5 (0.2)	5 (0.2)
5	Slide FEP (fluorinated ethylene propylene) tubing	5 (0.2)		FEP Insulation Tubing
	over the twisted inner and outer drain wires C until	C (Black)		(Black)
	the tubing cannot be slid any further, and then cut
	off the tubing leaving 5 mm (0.2 in.) of the stranded			T*1 (Yellow)
	drain wires exposed.			A (Red)
				B (White)
6	Slide heat shrinkable tubing over the cable end so	C(Black)		Heat Shrinkable Tubing
	that the tubing covers the braided shield and
	overlaps both the polyethylene jacket and loose			T*1 (Yellow)
	1
	wires A, B, C, and T* .			A (Red)
				B (White)

7

Slide a short piece of heat shrinkable tubing over

Lug tip

Crimp and Solder Here

each of wires A, B, C, and T*1. Install a crimp-on

Heat Shrinkable Tubing

terminal lug at the tip of each wire. Crimp and

solder each lug.

10

8 Slide each short piece of heat shrinkable tubing over the crimp sleeve. Heat all pieces of heat shrinkable tubing with a heat blower or dryer.

Heat Shrinkable Tubing

9 Attach an identification label to the end of the cable.

NOTE

Check that the insulation resistance between each wire including the inner shield is 10M or greater at 500V DC. Ensure that both ends of the wires are disconnected (open-circuited) during the check.

(*1): Only for /MV

80 (3.15)			Unit : mm
Black	(C)	20 (0.79)	(approx. inches)
White	(B)
Red	(A)
Yellow*1(T) 50 (1.97)
60 (2.36)
70 (2.76)			F0408.ai

NOTE

In case that the cable end finish parts assembly is necessary after delivery, contact your nearest Yokogawa sales office or the sales representative from which you purchased the product.

F0407.ai

CAUTION

Do not touch the '' conductive layer" (black area covering the signal cables A and B) to the converter case, terminal, and other leadwires. If it is touched, operation of the converter may be incorrect. When the cable is terminated, remove the conductive layer properly.

Figure 4.7 End Processing Method of DYC Signal Cable for Detector

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4.5.2 For Vortex Flow Converter (DYA)
	Description		Figure
1	Strip off the outer polyethylene jacket, outer braided	15 (0.6) 10 (0.4)		Unit : mm
	shield and inner jacket, and inner braided shield as			(approx. inches)
	per the dimensions as shown.
		95	5 (0.2)
		(3.7)

Conductive	T*1 (Yellow)
Layer (Black)

2	Cut of the black conductive layers(convering the
	two wires) completely, as per the dimensions below.	B (White)		3 (0.1) or less		Conductive
	Twist each of the conductor and drain wires so that
		A (Red)		40 (1.6)
	there are no free strands.				5 (0.2)	Layer (Black)
		T*1 (Yellow)		50 (2.0)
				60 (2.4)
3	Do not short-circuit the conductive layer and the
	terminals (A, B, C, G, and T*1).
4	Strip off about 5 mm (0.2 in.) of insulation for each		5 (0.2)
	of wires A, B, and T*1, and twist the strands of each	G 5 (0.2)		Drain wires
	wire.	C
			5 (0.2)	T*1 (Yellow)
				A (Red)
				B (White)
5	Slide black FEP (fluorinated ethylene propylene)		5 (0.2)	FEP Insulation Tubing (Black)
	tubing over the inner shield drain wire C and blue
				FEP Insulation Tubing (Blue)
	FEP tubing over outer shield drain wire G until	G
	the tubing cannot be slid any further, and then cut	C (Black)
	off the tubing leaving 5 mm (0.2 in.) of the drain		5 (0.2)	T*1 (Yellow)
	wires exposed.			A (Red)
				B (White)
6	Slide heat shrinkable tubing over the cable end so	G
	that the tubing covers the braided shield and	C (Black)	A (Red)T
	overlaps both the polyethylene jacket and loose	B (White)
			15 (0.6)		25 (1.0)
	wires A, B, C, G, and T*1.
				Heat Shrinkable Tubing

7	Slide a short piece of heat shrinkable tubing over	Lug-Tips				Crimp and Solder Heat-shrinkable tubing
	each of wires A, B, C, G, and T*1. Install a crimp-on
	terminal lug at the tip of each wire. Crimp and		10
	solder each lug.
			(0.4)

8 Slide each short piece of heat

shrinkable tubing over the crimp sleeve. Heat all pieces of heat shrinkable tubing with a heat blower or dryer.

Heat Shrinkable Tubing

9 Attach an identification label to the end of the cable.

NOTE

Check that the insulation resistance between each wire including the inner shield is 10M or greater at 500V DC. Ensure that both ends of the wires are disconnected (open-circuited) during the check.

(*1): Only for /MV

		95 (3.74)
	Blue	(G)
	Black	(C)
	White	(B)
	Red (A)		3
			MAX
	Yellow*1(T) 50 (1.97)
	60 (2.36)		25 (0.98)
	70 (2.76)
	80 (3.15)

Unit : mm (approx. inches)

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NOTE

In case that the cable end finish parts assembly is necessary after delivery, contact your nearest Yokogawa sales office or the sales representative from which you purchased the product.

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CAUTION

Do not touch the '' conductive layer" (black area covering the signal cables A and B) to the converter case, terminal, and other leadwires. If it is touched, operation of the converter may be incorrect. When the cable is terminated, remove the conductive layer properly.

Figure 4.8 End Processing Method of DYC Signal Cable for Converter

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<4. WIRING>

4-8

4.6Wiring Procedures and Precautions

NOTE

Once all wiring is complete, check the connections before applying power to the instrument. Improper arrangements or wiring may cause a unit malfunction or damage.

(1)Lay wiring as far as possible from electrical noise sources such as large capacity transformers, motors, and power supplies.

(2)Remove the terminal cover and dustproof plug of an electrical connection before wiring. When you open the cover of explosion proof type(*), turn the Locking Screw to the right, and unlock When you close a cover after wiring, be sure turn the Locking Screw to the left and lock.

(*)Flameproof(TIIS,ATEX,IECEx), Intrinsically safe(SAA)

(3)It recommends using an flexible metal conduit and a duct for waterproofing or external protection of an electric wire. Refer to Figure 4.9 and Figure 4.10.

(4)The flameproof packing adapter (option code: /G11 or /G12) should be used for the external wiring of TIIS Flameproof. Refer to “INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT.”

Terminal Box

Steel Conduit

Flameproof

Converter

Tee

Flexible Metal Conduit

Drain Fitting

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Figure 4.9 Example of Wiring (Integral Type and

Remote Type Detector)

Terminal Box

Steel Conduit for

Flameproof

Converter

Flexible Metal Conduit

Tee

Drain Fitting

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Figure 4.10 Example of Wiring (Remote Type

Converter)

	Wrench	B. Coupling
	Lock Nut	Clamp Nut
		Clamp Ring
		Packing Gland
		Washer
	Cable	Packing
	Union Nut	Wrench
		Lock Nut
		Packing Case
		Adapter Body
		O-Ring

Apply a nonhardnening sealant to the threads for watweproofing

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Figure 4.11 Cable Wiring

NOTE

Be sure to use the flameproof packing adapter (option code:/G11 or /G12) for TIIS flameproof type at the time of cable wiring work. Refer to Table 4.2.

Table 4.2 Flameproof packing adaptor

		Diameter for	Cable outer	Identification
	Option Code		diameter			Parts NO.
		screw		mark
			mm (inch)
	G11	G11	ø8.0 to ø10.0	16	8-10
			(ø0.31 to ø0.39)
						G9601AM
			ø10.0 to ø12.0
	G12	G12		16 10-12
			(ø0.39 to ø0.47)

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<4. WIRING>

4-9

(5)Perform attachment of flameproof packing adaptor in the following ways. Refer to Figure 4.11.

(a)Loosen the locking screw and remove the terminal box cover.

(b)Measure the cable outer diameter in two directions to within 0.1 mm.

(c)Calculate the average of the two diameters, and use packing with an internal diameter nearest to this value. Refer to Table 4.2.

(d)Screw the flameproof packing adapter into the terminal box until the O-Ring touches the wiring port (at least 6 full turns), and firmly tighten the lock nut.

(e)Insert the cable through the union nut, the B. coupling, the clamp nut, the clamp ring, the packing gland, the washer, the packing, and the packing case, in that order.

(f)Insert the end of the cable into the terminal box.

(g)Tighten the union cover to grip the cable. When tightening the union cover, tighten approximately one turn past the point where the cable will no longer move up and down. Proper tightening is important. If it is too tight, a circuit break in the cable may

occur; if not tight enough, the flameproof effectiveness will be compromised.

(h)Fasten the cable by tightening the clamp nut.

(i)Tighten the lock nut on the union nut.

(j)Connect the cable wires to each terminal.

(6)

(a)Do not connect cables outdoors in wet weather in order to prevent damage from condensation and to protect the insulation.

(b)Do not splice the cable between the flowtube terminal and the converter if it is too short. Replace the short cable with a cable that is the appropriate length.

(c)The signal cables must be routed in separate steel conduit tubes 16 (JIS C 8305) or flexible conduit tubes 15 (JIS C 8309).

(d)Always route the power and output signal cables in separate steel conduit tubes, except when the power supply voltage is 24 V and four-core cables are used for wiring. Keep conduits or flexible tubes watertight using sealing tape.

(7)For the TIIS flameproof type with wiring using a flameproof packing adapter, wire cables through the packing adapters approved by Yokogawa (option code: /G11 or /G12).

	T1
	16.5
18
F	L
G
*Packing
(Choose from the table
below depend on cable
outside diameter)	T2

Adapter body (M. Screw)

O-Ring

Packing case	Unit : mm
	(approx. inch)
Hexagon socket set screw
Packing *
Hexagon socket set screw
O-Ring
O-Ring

	Washer	C
	Union nut
	Packing gland
	Clamp ring
	Clamp nut	D
	O-Ring
	B.coupling
	Cable (user’s scope)

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		Size			Cable outer	Packing		Identification		Weight
						dimensions
					diameter				mark	kg (lb)
T1	T2	C	D	L		F	G
					ø8.0 to ø10.0	ø10.0		16	8-10
		35	39	94.5	(ø0.31 to ø0.39)	(ø0.39)	ø20.0			0.26
G 1/2	G 1/2
		(1.38)	(1.54)	(3.72)	ø10.0 to ø12.0	ø12.0	(ø0.79)	16	10-12	(0.57)
					(ø0.39 to ø0.47)	(ø0.47)

Figure 4.12 Flameproof Packing Adapter (option

code: /G11, /G12)

4.7Grounding

IMPORTANT

When a lightning protector (option code: /A) is selected, use a grounding resistance of 10Ω or less.

(1)The grounding terminals are located on the inside and outside of the terminal area. Either terminal may be used.

(2)For pulse output version, ground the flowmeter. Also ground the shielded cable between the converter and the pulse receiver.

(3)Grounding should satisfy Class D requirements (ground resistance 100Ω or less).

(4)Use 600V PVC insulated wire for grounding.

			Grounding
Example: Integral Type			Terminals
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Figure 4.13 Grounding Terminal

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<5. BASIC OPERATING PROCEDURES>

5-1

5.BASIC OPERATING PROCEDURES

Data setting can be performed with the three keys on the front panel (SET,SHIFT and INC) or using a handheld BRAIN TERMINAL (BT200) and HART communicator.

5.1Display Configuration

Figure 5.1 shows the configuration of the digitalYEWFLO display panel (if equipped).

4 Unit Display

3 Alarm Display

2Data Display

(Lower)

4 Unit Display

1 Data Display

(Upper)

SET

SHIFT INC

5 Setting Keys

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Figure 5.1 Display Configuration

1	Data Display(Upper) : flowrate data, setting data,
		total data
		temperature data (/MV)
2	Data Display(Lower) : total data, alarm data
		temperature data (/MV)
3	Alarm Display	: alarm of a flow error and a
		vibration error
4	Unit Display	: flowrate unit
5	Setting Keys	: These keys are used to
		change flow rate data
		displays and type of
		setting data

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<5. BASIC OPERATING PROCEDURES>

5-2

5.2Display Contents

The display content items are classified in the following three items.

Table 5.1 Mode Name List

Mode (status) Name	Display Contents
Flow rate display mode	A mode in which instantaneous flow rates or totalized values are displayed.
	Display content is usually selected either in display content selection mode or by setting
	parameters via BRAIN communication.
Setting mode	In this mode, parameter contents are confirmed or data is updated using the setting section. The
	mode is changed to this mode when “SET” key is pressed in normal mode.
Alarm number display mode	This mode is overlapped when an alarm is occurring in display mode. The alarm number
	presentation to indicate alarm contents (about 2 sec) and the normal data display (about 4 sec ) are
	repeated alternatively.

Mode represents that the system is in a state where the relevant setting or display is possible.

●Display Example

SET

SHIFT + SET

Flowrate Display Mode

UPPER	LOWER
Flow rate	Total rate

UPPER	LOWER
Flow rate (%)	Blank

This mode display can be selected below.

Upper display : Flow rate

Lower display : Total rate or Blank

Setting Mode

Switching of setting number

SHIFT

This mode is used to check parameter content and rewrite data. This mode can be called up from the flowrate display mode by pressing the “SET” key.

Setting item and setting number can be changed when pressing “SHFT” key.

This mode can be called up by pressing “SET” key while pressing “SHIFT” key when setting mode is displayed.

Error Mode

NORMAL

INDICATION Alternately (4 sec)

ERROR INDICATION (2 sec)

When an alarm situation occurs, this mode will replace the current mode (flow rate or setting mode) to show what type of alarm has occurred.

Refer to Section 6.5 “SelfDiagnostic (Error Code List)” about the error descriptions and error number.

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