YOKOGAWA Dpharp EJA118N Manual de usuario

Instruction

Manual

Yokogawa Electric Corporation

Model EJA118W, EJA118N and

EJA118Y Diaphragm Sealed

Differential Pressure Transmitters

[Style: S2]

IM 1C22H1-01E

10th Edition

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CONTENTS

IM 1C22H1-01E

FD No. IM 1C22H1-01E

10th Edition: Feb. 2000(YK)

CONTENTS

1. INTRODUCTION............................................................................................1-1

WARRANTY.................................................................................................. 1-2

2. HANDLING CAUTIONS ................................................................................2-1

2.1 Model and Specifications Check......................................................... 2-1

2.2 Unpacking ........................................................................................... 2-1

2.3 Storage................................................................................................ 2-1

2.4 Selecting the Installation Location ...................................................... 2-2

2.5 Pressure Connection........................................................................... 2-2

2.6 Waterproofing of Cable Conduit Connections .................................... 2-2

2.7 Restrictions on Use of Radio Transceiver .......................................... 2-2

2.8 Insulation Resistance and Dielectric Strength Test............................ 2-3

2.9 Installation of Explosion Protected Type ............................................ 2-3

2.9.1 FM Approval ................................................................................. 2-3

2.9.2 CSA Certification .......................................................................... 2-5

2.9.3 SAA Certification .......................................................................... 2-6

2.9.4 CENELEC (KEMA)/IEC (KEMA) Certification.............................. 2-7

2.9.5 JIS Certification ............................................................................ 2-9

2.10 EMC Conformity Standards ................................................................ 2-9

3. COMPONENT NAMES..................................................................................3-1

4. INSTALLATION.............................................................................................4-1

4.1 Precautions ......................................................................................... 4-1

4.2 Mounting the Diaphragm Seals .......................................................... 4-1

4.3 Transmitter Mounting .......................................................................... 4-2

4.4 Affixing the Teflon Film ....................................................................... 4-3

4.5 Rotating Transmitter Section .............................................................. 4-3

5. WIRING..........................................................................................................5-1

5.1 Wiring Precautions .............................................................................. 5-1

5.2 Selecting the Wiring Materials ............................................................ 5-1

5.3 Connections of External Wiring to Terminal Box................................ 5-1

5.3.1 Power Supply Wiring Connection ................................................ 5-1

5.3.2 External Indicator Connection ...................................................... 5-1

5.3.3 BRAIN TERMINAL BT200 Connection ........................................ 5-2

5.3.4 Check Meter Connection.............................................................. 5-2

5.4 Wiring .................................................................................................. 5-2

5.4.1 Loop Configuration ....................................................................... 5-2

(1) General-use Type and Flameproof Type..................................... 5-2

(2) Intrinsically Safe Type ................................................................. 5-2

5.4.2 Wiring Installation ......................................................................... 5-3

(1) General-use Type and Intrinsically Safe Type............................. 5-3

(2) Flameproof Type (JIS) ................................................................ 5-3

5.5 Grounding............................................................................................ 5-4

5.6 Power Supply Voltage and Load Resistance ..................................... 5-4

CONTENTS

IM 1C22H1-01E

6. OPERATION..................................................................................................6-1

6.1 Preparation for Starting Operation...................................................... 6-1

6.2 Zero Point Adjustment ........................................................................ 6-2

6.2.1 When you can obtain Low Range Value from actual measured

value of 0% (0 kPa, atmospheric pressure); ............................... 6-2

6.2.2 When you cannot obtain Low Range Value from actual

measured value of 0%; ................................................................ 6-2

6.3 Starting Operation ............................................................................... 6-3

6.4 Shutting Down Operation.................................................................... 6-3

6.5 Setting the Range Using the Range-setting Switch ........................... 6-4

7. BRAIN TERMINAL BT200 OPERATION .....................................................7-1

7.1 BT200 Operation Precautions............................................................. 7-1

7.1.1 Connecting the BT200 ................................................................. 7-1

7.1.2 Conditions of Communication Line .............................................. 7-1

7.2 BT200 Operating Procedures ............................................................. 7-1

7.2.1 Key Layout and Screen Display................................................... 7-1

7.2.2 Operating Key Functions.............................................................. 7-2

(1) Alphanumeric Keys and Shift Keys............................................. 7-2

(2) Function Keys ............................................................................. 7-2

7.2.3 Calling Up Menu Addresses Using the Operating Keys.............. 7-3

7.3 Setting Parameters Using the BT200 ................................................. 7-4

7.3.1 Parameter Summary .................................................................... 7-4

7.3.2 Parameter Usage and Selection .................................................. 7-6

7.3.3 Setting Parameters....................................................................... 7-7

(1) Tag No. Setup ............................................................................. 7-7

(2) Calibration Range Setup............................................................. 7-7

(3) Damping Time Constant Setup ................................................... 7-8

(4) Output Mode and Integral Indicator Display Mode Setup ........... 7-9

(5) Output Signal Low Cut Mode Setup............................................ 7-9

(6) Integral Indicator Scale Setup................................................... 7-10

(7) Unit Setup for Displayed Temperature ...................................... 7-11

(8) Unit Setup for Displayed Static Pressure.................................. 7-12

(9) Operation Mode Setup.............................................................. 7-12

(10) Impulse Line Connection Orientation Setup ............................. 7-12

(11) Output Status Display/Setup when a CPU Failure.................... 7-12

(12) Output Status Setup when a Hardware Error Occurs ............... 7-12

(13) Bi-directional Flow Measurement Setup ................................... 7-13

(14) Range Change while Applying Actual Inputs ............................ 7-13

(15) Zero Point Adjustment............................................................... 7-14

(16) Test Output Setup ..................................................................... 7-15

(17) User Memo Fields..................................................................... 7-15

7.4 Displaying Data Using the BT200..................................................... 7-16

7.4.1 Displaying Measured Data ......................................................... 7-16

7.4.2 Display Transmitter Model and Specifications........................... 7-16

7.5 Self-Diagnostics ................................................................................ 7-16

7.5.1 Checking for Problems............................................................... 7-16

(1) Identifying Problems with BT200 .............................................. 7-16

(2) Checking with Integral Indicator................................................ 7-17

7.5.2 Errors and Countermeasures..................................................... 7-18

iii

CONTENTS

IM 1C22H1-01E

8. MAINTENANCE.............................................................................................8-1

8.1 Overview ............................................................................................. 8-1

8.2 Calibration Instruments Selection ....................................................... 8-1

8.3 Calibration ........................................................................................... 8-1

8.4 Disassembly and Reassembly............................................................ 8-3

8.4.1 Replacing the Integral Indicator ................................................... 8-3

8.4.2 Replacing the CPU Assembly...................................................... 8-4

8.5 Troubleshooting................................................................................... 8-5

8.5.1 Basic Troubleshooting.................................................................. 8-5

8.5.2 Troubleshooting Flow Charts ....................................................... 8-5

9. GENERAL SPECIFICATIONS ......................................................................9-1

9.1 Standard Specifications ...................................................................... 9-1

9.2 Model and Suffix Codes...................................................................... 9-3

9.3 Optional Specifications........................................................................ 9-6

9.4 Dimensions.......................................................................................... 9-8

INSTALLATION AND OPERATING PRECAUTIONS FOR

JIS INTRINSICALLY SAFE EQUIPMENT.......................................... EX-A03E

INSTALLATION AND OPERATING PRECAUTIONS FOR

JIS FLAMEPROOF EQUIPMENT....................................................... EX-B03E

Customer Maintenance Parts List

DPharp EJA Series Transmitter Section ............................CMPL 1C22A1-02E

Models EJA118W, EJA118N, and EJA118Y Diaphragm Sealed

Differential Pressure Transmitter ............................. CMPL 1C22H1-01E

REVISION RECORD

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IM 1C22H1-01E

1-1

1. INTRODUCTION

Thank you for purchasing the DPharp electronic

pressure transmitter.

The DPharp Pressure Transmitters are precisely

calibrated at the factory before shipment. To ensure

correct and efficient use of the instrument, please read

this manual thoroughly and fully understand how to

operate the instrument before operating it.

jRegarding This Manual

• This manual should be passed on to the end user.

• The contents of this manual are subject to change

without prior notice.

reproduced in any form without Yokogawa’s written

permission.

• Yokogawa makes no warranty of any kind with

regard to this manual, including, but not limited to,

implied warranty of merchantability and fitness for a

particular purpose.

• If any question arises or errors are found, or if any

information is missing from this manual, please

inform the nearest Yokogawa sales office.

• 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 changes in the specifications,

construction, or component parts of the instrument

may not immediately be reflected in this manual at

the time of change, provided that postponement of

revisions will not cause difficulty to the user from a

functional or performance standpoint.

NOTE

For FOUNDATION Fieldbus and HART protocol

versions, please refer to IM 1C22T2-01E and IM

1C22T1-01E respectively, in addition to this IM.

jSafety Precautions

• For the protection and safety of the operator and the

instrument or the system including the instrument,

please be sure to follow the instructions on safety

described in this manual when handling this instru-

ment. In case the instrument is handled in contradic-

tion to these instructions, Yokogawa does not

guarantee safety.

• For the intrinsically safe equipment and

explosionproof equipment, in case the instrument is

not restored to its original condition after any repair

or modification undertaken by the customer,

intrinsically safe construction or explosionproof

construction is damaged and may cause dangerous

condition. Please contact Yokogawa for any repair

or modification required to the instrument.

• The following safety symbol marks are used in this

Manual:

WARNING

Indicates a potentially hazardous situation which,

if not avoided,

could

result in death or serious

injury.

CAUTION

Indicates a potentially hazardous situation which,

if not avoided, may result in minor or moderate

injury. It may also be used to alert against

unsafe practices

IMPORTANT

Indicates that operating the hardware or software

in this manner may damage it or lead to system

failure.

NOTE

Draws attention to information essential for

understanding the operation and features.

IM 1C22H1-01E

1-2

1. INTRODUCTION

WARRANTY

• The warranty shall cover the period noted on the

quotation presented to the purchaser at the time of

purchase. Problems occurred during the warranty

period shall basically be repaired free of charge.

• In case of problems, the customer should contact the

Yokogawa representative from which the instrument

was purchased, or the nearest Yokogawa office.

• If a problem arises with this instrument, please

inform us of the nature of the problem and the

circumstances under which it developed, including

the model specification and serial number. Any

diagrams, data and other information you can

include in your communication will also be helpful.

• Responsible party for repair cost for the problems

shall be determined by Yokogawa based on our

investigation.

• The Purchaser shall bear the responsibility for repair

costs, even during the warranty period, if the

malfunction is due to:

- Improper and/or inadequate maintenance by the

purchaser.

- Failure or damage due to improper handling, use or

storage which is out of design conditions.

- Use of the product in question in a location not

conforming to the standards specified by

Yokogawa, or due to improper maintenance of the

installation location.

- Failure or damage due to modification or repair by

any party except Yokogawa or an approved

representative of Yokogawa.

- Malfunction or damage from improper relocation

of the product in question after delivery.

- Reason of force majeure such as fires, earthquakes,

storms/floods, thunder/lightening, or other natural

disasters, or disturbances, riots, warfare, or

radioactive contamination.

WARNING

• Instrument installed in the process is under

pressure. Never loosen or tighten the flange

bolts as it may cause dangerous spouting of

process fluid.

• Since the accumulated process fluid may be

toxic or otherwise harmful, take appropriate

care to avoid contact with the body, or inhala-

tion of vapors even after dismounting the

instrument from the process line for mainte-

nance.

CAUTION

This instrument is tested and certified as intrinsi-

cally safe type or explosionproof type. Please

note that the construction of the instrument,

installation, external wiring, maintenance or

repair is strictly restricted, and non-observance

or negligence of this restriction would result in

dangerous condition.

IM 1C22H1-01E

2-1

2. HANDLING CAUTIONS

This chapter describes important cautions regarding

how to handle the transmitter. Read carefully before

using the transmitter.

The EJA Series pressure transmitters are thoroughly

tested at the factory before shipment. When the

transmitter is delivered, visually check them to make

sure that no damage occurred during shipment.

Also check that all transmitter mounting hardware

shown in Figure 2.1 is included. If the transmitter was

ordered without the mounting bracket, the transmitter

mounting hardware is not included. After checking the

transmitter, repack it in the way it was delivered until

installation.

Mounting bracket

U-bolt nut

U-bolt

Transmitter

mounting bolt

F0201.EPS

Figure 2.1 Transmitter Mounting Hardware

2.1 Model and Specifications

Check

The model name and specifications are indicated on the

name plate attached to the case. If the reverse operat-

ing mode was ordered (reverse signal), ‘REVERSE’

will be inscribed in field *1; if square root display

mode was ordered, ‘SQRT’ is inscribed in field *2; if

square root output mode was ordered, ‘SQRT’ is

inscribed in field *3.

Figure 2.2 Name Plate Example of JIS Flameproof Type

2.2 Unpacking

When moving the transmitter to the installation site,

keep it in its original packaging. Then, unpack the

transmitter there to avoid damage on the way.

2.3 Storage

The following precautions must be observed when

storing the instrument, especially for a long period.

(a) Select a storage area which meets the following

conditions:

• It is not exposed to rain or water.

• It suffers minimum vibration and shock.

• It has an ambient temperature and relative

humidity within the following ranges.

Ambient temperature:

–40 to 85°C without integral indicator

–30 to 80°C with integral indicator

Relative humidity:

5% to 100% R.H. (at 40°C)

Preferred temperature and humidity:

approx. 25°C and 65% R.H.

(b) When storing the transmitter, repack it as nearly as

possible to the way it was packed when delivered

from the factory.

oughly clean the diaphragm surface of the dia-

phragm seal (pressure-detector section), so that no

measured fluid remains on them. Also make sure

before storing that the pressure-detector and

transmitter assemblies are securely mounted.

IM 1C22H1-01E

2-2

2. HANDLING CAUTIONS

2.4 Selecting the Installation

Location

The transmitter is designed to withstand severe

environmental conditions. However, to ensure stable

and accurate operation for years, observe the following

precautions when selecting an installation location.

(a) Ambient Temperature

Avoid locations subject to wide temperature

variations or a significant temperature gradient. If

the location is exposed to radiant heat from plant

equipments, provide adequate thermal insulation

and/or ventilation.

(b) Ambient Atmosphere

Avoid installing the transmitter in a corrosive

atmosphere. If the transmitter must be installed in a

corrosive atmosphere, there must be adequate

ventilation as well as measures to prevent intrusion

or stagnation of rain water in conduits.

Select an installation site suffering minimum shock

and vibration (although the transmitter is designed

to be relatively resistant to shock and vibration).

(d) Installation of Explosion-protected Transmitters

Explosion-protected transmitters can be installed in

hazardous areas according to the types of gases for

which they are certified. See Subsection 2.9

“Installation of Explosion Protected Type Transmit-

ters.”

2.5 Pressure Connection

WARNING

• Instrument installed in the process is under

pressure. Never loosen or tighten the flange

bolts to avoid the dangerous spouting of

process fluid.

• Since the accumulated process fluid may be

toxic or otherwise harmful, take appropriate

care to avoid contact with the skin, eyes or

body, or inhalation of vapors even after dis-

mounting the instrument from process line for

maintenance.

The following precautions must be observed in order to

safely operate the transmitter under pressure.

(a) Never apply a pressure higher than the specified

maximum working pressure.

(b) Never loosen or tighten the bolts securing the

diaphragm seal flanges when the assembly is under

pressure. Do it after releasing the process pressure

if required.

2.6 Waterproofing of Cable

Conduit Connections

Apply a non-hardening sealant to the threads to

waterproof the transmitter cable conduit connections.

(See Figure 5.4.2a, 5.4.2b and 5.4.2d.)

2.7 Restrictions on Use of Radio

Transceiver

IMPORTANT

Although the transmitter has been designed to

resist high frequency electrical noise, if a radio

transceiver is used near the transmitter or its

external wiring, the transmitter may be affected

by high frequency noise pickup. To test for such

effects, bring the transceiver in use slowly from a

distance of several meters from the transmitter,

and observe the measurement loop for noise

effects. Thereafter, always use the transceiver

outside the area affected by noise.

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