YOKOGAWA EJA564E Manuel utilisateur

IM-P-20200626-01

1st Edition, October 2020

Yokogawa Corporation of America

2 Dart Road, Newnan, Georgia 30265 U.S.A.

Tel: (800) 888-6400 Fax: (770) 254-0928

User’s

Manual Hygienic & Sanitary Pressure

Transmitter EJA564E

IM-P-20200626-01

Hygienic & Sanitary Pressure Transmitter

EJA564E

CONTENTS

IM-P-20200626-01 1st Edition

1. Introduction...................................................................................................4

1.1 Description ........................................................................................................... 4

1.2 Barometric Reference ......................................................................................... 4

2. Dimensional Drawings.................................................................................5

3. Installing the Transmitter.............................................................................6

3.1 Installing Weld-On Nipple ................................................................................... 6

3.2 Installing Transmitter (Code W33) ..................................................................... 6

3.3 Mounting Position................................................................................................ 6

3.4 Mounting Position Effect..................................................................................... 6

3.5 Calibration ............................................................................................................ 6

3.6 Connection Terminal ........................................................................................... 7

3.7 Wiring .................................................................................................................... 7

4. Remaining .....................................................................................................8

4.1 External Load ....................................................................................................... 8

5. Display and Push Buttons...........................................................................9

5.1 Display Readout................................................................................................... 9

5.2 Summary Programming Points.......................................................................... 9

6. Explanation Programming Points ........................................................... 10

6.1 Zero Adjustment (ZERO)................................................................................... 10

6.2 Span Adjustment (SPAN) .................................................................................. 10

6.3 Cancel Mounting Position Effect...................................................................... 10

6.4 Display Setting of Units..................................................................................... 11

6.5 Output Selection 4-20 mA or 20-4 mA.............................................................. 11

6.6 Damping Adjustment......................................................................................... 11

6.7 Temperature Units ............................................................................................. 12

6.8 Device Setup....................................................................................................... 12

6.9 Readout............................................................................................................... 12

6.10 Burst Mode (HART) ............................................................................................ 12

6.11 Information ......................................................................................................... 13

IM-P-20200626-01

7. Programming ............................................................................................. 14

7.1 Programming with Hand Held Terminal .......................................................... 14

8. Specifications ............................................................................................ 16

9. Precautions and Warnings....................................................................... 17

Revision Information ........................................................................................... 18

7.2HART Commands and Parameters ................................................................. 15

IM-P-20200626-01

<1. Introduction>

1. Introduction

The EJA564E solid-state pressure and level

transmitters are based on a piezoresistive silicon

sensor, with a very high burst pressure. The

sensor element is mounted in a stainless steel

"foot".Atemperature sensor is mounted inside the

foot to and is used for active temperature

compensation. A strong stainless steel “flush”

diaphragm protects the sensor from the process

medium. A minimal amount of special oil fills the

chamber surrounding the sensor and transfers

pressure from the flush mounted diaphragm to the

sensor hydraulically.

Pressure on the sensor element creates a small

deection of the silicon substrate and bridge network.

The resulting strain in the silicon resistors causes a

change in the bridge resistance that is proportional to

the pressure being applied. The transmitter

electronics detect this change in the bridge

resistance and converts it into the measured value.

The amplifier system is based on a single Integrated

Circuit, which ensures perfect linearity in the output,

all within an accuracy of 0.2 %.

1.1 Description

The EJA564E transmitter is specially designed with

a flush mounted diaphragm so it fully meet the

needs of the food, pharmaceutical, chemical and

other industries. Standard wetted parts are made of

316L SST, other materials are also available, like

Hastelloy C. Various process connections can be

adapted and available for manufacture;

(1.5”, 2” and 3” tri-clamp), SMS (1.5” and 2”), dairy

milk couplings (DN 25, 40 and 50), flanges (DIN and

ANSI) and sanitary weld-on nipples (ø 48, 62 and

85 mm.), among others.

Certain variants of the EJA564E are designed to be

non-clogging and are capable of being cleaned

inside. Various process connection types are

manufactured according to 3-A (74-06)

requirements such as Tri-Clamp and others.

1.2 Barometric Reference

The EJA564E is a “relative transmitter” which means

that barometric changes will not affect the zero.

The venting is placed in the cover of the electronics

housing next to the cable entry and is the lter for the

barometric reference to atmospheric pressure.

The vent mechanism must be kept clean.

IM-P-20200626-01

<2. Dimensional Drawings>

2. Dimensional Drawings

nEJA564E- "T20" PROCESS CONNECTION

1/2" NPT Electrical Connection

M12 Electrical Connection

Note. Standard Drawings for all other connection types are available on request.

IM-P-20200626-01

<3. Installing the Transmitter>

3. Installing the Transmitter

The diaphragm of the transmitter is protected with

a special protection cap. Protect the diaphragm

until installation takes place. Take special care

with the fragile diaphragm.

3.1 Installing Weld-On Nipple

A certied welder should perform the installation of

the weld-on nipple. Weld with Argon, MIG or TIG,

with the smallest welding pin possible.

1. Cut a hole in the process vessel or pipe for

a precise t of the weld-on nipple. The hole

should be a tight t when coupled with the

weld-on nipple.

2. Prepare the hole by bevelling the edge to

accept ller material.

3. Remove the weld-on nipple from the

transmitter.

Remove the gasket and O-Ring out of the

weld-on nipple!

WARNING

Improper installation may result in distortion

of the weld-on nipple. Excessive heat will

distort the weld-on nipple. Weld in sections

as shown in the figure below and allow

adequate cooling between passes. To

reduce the chances of distortion to the weld-

on nipple, use a mandrel.

4. Position the weld-on nipple in the vessel hole

and tack six places. The weld sequence is

shown in the gure above.

5. Weld the weld-on nipple in place using 0.03

to 0.045 in. (0.762 to 1.143 mm) stainless rod

as ller material in the bevelled area. Adjust

amperage for penetration.

6. Remove the mandrel after the welding

operation.

3.2 Installing Transmitter

(Code W33)

1. After welding, clean up edges, and take care

of the inside nipple wall.

2. Make sure the O-ring (10) is properly located.

3. Improper installation of the O-ring can cause a

process leak.

4. Apply silicone grease to the O-ring (10),

diaphragm ring and the hole inside wall of

the weld-on nipple, this prevents galvanic cell

corrosion between transmitter and the nipple

inside.

5. Install the transmitter and x it with the SS M8

bolt.

3.3 Mounting Position

When the transmitter is mounted horizontally,

the cable gland must be pointed downwards.

Furthermore, 3-A certified units with leakage

detection holes in weld-on nipples should be on

the lowest point and pointing down 90 degrees

from the horizontal.

3.4 Mounting Position Effect

All transmitters are calibrated in a vertical position

(diaphragm points downwards). If the transmitter is

mounted in another position, there can be a slight

zero shift. (example 4.02 mA instead of 4.00 mA).

After installation of the transmitter,the zero must

be set to 4.00 mA with P103 (cancelsmounting

position effect). This will not affect the span.

3.5 Calibration

All transmitters are calibrated at the factory to the

customer specified range. If the calibration is not

specified, the transmitter will be calibrated to the

maximum span.

Determine (before welding) the position of

the electronics housing so that the cable

entry and the venting are in the right position.

These positions are fixed after welding.

IM-P-20200626-01

<3. Installing the Transmitter>

3.6 Connection Terminal

The figure below shows the wiring connection of the transmitter. The 2-wires must be connected to the

terminal board. The wiring terminals can be connected without a screwdriver. The opening levers of the

terminal can be lifted and pressed down by hand. Lift the opening levers of the terminals and insert the

corresponding wires. Press down the levers by hand. The terminal spring will close and the wire is clamped.

3.7 Wiring

The transmitter must always be connected to ground. The transmitter must be connected with standard

two-wire shielded cable. Do not run signal wiring in open trays with power wiring or near heavy electrical

equipment (Frequency controller or heavy pumps). Shielding must always be connected at the side of the power

supply. In case the process connection is already connected to ground (e.g. via the tank or pipe line) do not

connect the instrument to ground. Please ensure that the instrument is not connected to ground twice to prevent

an ‘earth loop’. In applications with synthetic process connections, the enclosure (internal or external) must be

connected to ground.

Reversing the polarity will not damage the transmitter, but the transmitter will not function until the + and – are

properly connected.

CAUTION

•Please ensure that the transmitter is not connected to ground twice to prevent an earth loop.

1Voltage Supply / Output Signal (4-20 mA)

2Internal Ground

3Terminal Connector

Insert the wires into the connector and

push the lever down by hand.

IM-P-20200626-01

4. Remaining

4.1 External Load

External loads must be placed in the negative side of the 2-wire loop. The minimum power supply is based on

the total circuit resistance. The maximum external load (RI max.) for 24 Vdc will be 600 Ω (Ohm).

CAUTION

•With a loop resistance of 250 Ω a power supply of at least 17 Vdc must be used.

<4. Remaining>

−

max. = Voltage - 12 V (min.)

20 mA

IM-P-20200626-01

5. Display and Push Buttons

The EJA564E has a high contrast display for optimal readout. The menu is controlled by 3 push buttons.

Navigate with the up and down through menus and measuring values.

Enter a menu and conrm selections with the menu button.

Display EJA564E

5.1 Display Readout

When the transmitter is powered, a startup screen with the software version and the pressure range appears for

a few seconds. After the startup screen the transmitter will automatically continue to the main screen with the

actual measurement reading.

5.2 Summary Programming Points

PROGRAM POINT NAME FUNCTION

P100 Menu-Exit menu Start and exit

P101 ZERO value Zero adjustment (ZERO 4 mA) with or without test pressure

P102 SPAN value Span adjustment (SPAN 20 mA) with or without test pressure

P103 MOUNT correction Cancel mounting position effect

P104 UNITS Selection of engineering units

P105 REVERSE mA Output selection: 4-20 mA or 20-4 mA

P106 DAMPING Adjustable damping: 0.00 to 25.00 seconds

P107 TEMP UNITS Temperature unit selection: Celsius or Fahrenheit

P108 DEVICE SETUP Conguration: Protection, HART, Display mode, Display update

P109 READOUT Readout options on display: Current, Unit, percentage and temperature

P110 BURST MODE Continuously broadcast a standard HART reply message

Push the up button to browse through various menus

and adjusting values.

Push the down button to browse through various

menus and adjusting values.

Push the menu button to enter menus or conrm a

selection.

<5. Display and Push Buttons>

IM-P-20200626-01

6.2 Span Adjustment

(SPAN)

This setting can be used to adjust

the range (SPAN) according to an

entered value or adjusted with or without an applied

pressure. The maximum pressure value that can be

measured: The measurement at ZERO (P101) +

the entered value SPAN (P102). If the ZERO (P101)

is increased, the maximum measured value will

automatically be set higher by the same amount as

the zero. This will be explained step by step by an

example.

6. Explanation of Programming Points

6.1 Zero Adjustment

(ZERO)

The transmitter is set to 0 mbar at

atmospheric pressure.

The ZERO can be adjusted at a lower or higher

point. This will be explained step by step by an

example.

Example: Increase ZERO to 100 mBar.

1. The measuring unit of the transmitter is set to

mBar. If not, this can be selected by choosing

the right measuring unit in program point

P104.

2. Navigate to program point P101, and push the

menu button to enter the menu.

3. The actual measured value appears on the

display.

4. Increase this value with the arrow button to

100 mBar, and push the button until

save appearson the display.

5. The transmitter will return to the home screen.

The measurement value at atmospheric

pressure is now -100 mBar. At an applied

pressure of 100 mbar the transmitter will

display 0 mbar.

The transmitter can be adjusted to zero in a real

process situation. The transmitter will measure the

pressure in an actual process. This measurement

will be used as the zero value (4 mA).

1. Go to the home screen, the transmitter will

display the actual measured value.

2. Push the button until the actual measured

zero andthe message ZERO PUSHED

appearson the display.

3. The transmitter will return to home screen.

Example: Measurement range 0 – 2000 mbar.

1. The span must be set to 2000 mbar

2. Navigate to program point P102, and push the

menu button to enter the menu.

3. Adjust the SPAN with the push buttons to

2000 mbar and push the button until save

appearson the display.

4. The transmitter will return to the home screen.

The span can also be adjusted to a real process

situation. The transmitter will measure the pressure

in an actual process. This measurement will be used

as the span value (20 mA).

1. Go to the home screen, the transmitter will

display the actual measured value.

2. Push the button until the actual measured

span and the message SPAN

PUSHED appearson the display.

3. The transmitter will return to home screen.

TIP

P102 is the adjustment of the total span.

When a compound range must be adjusted

(for example -1 till +3 bar), a span of 4 bar

must be programmed.

The Zero (P101) must be set at -1 bar. The

transmitter is adjusted at - 1 bar = Zero and +3

bar = Span.

6.3 Cancel Mounting

Position Effect

All transmitters are calibrated

vertically. If the transmitter is

installed horizontally, the transmitter has a small

“mounting position” effect on the zero. For example,

the pressure value displayed may be 0.002 mbar

instead of 0.000 mbar.

1. Navigate to program point P103, and push the

menu button to enter the menu.

2. Two choices appear on the screen: Set and Reset.

<6. Explanation Programming Points>

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