YOKOGAWA EJA565E Manual de usuario
IM-P-20200627-01
©Copyright 2020
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
Transmitters EJA565E
IM-P-20200627-01
2
IM-P-20200627-01
Hygienic & Sanitary Pressure Transmitter
EJA565
CONTENTS
IM-P-20200627-01 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 MountingPositionEect..................................................................................... 6
3.5 Calibration ............................................................................................................ 6
3.6 Wiring .................................................................................................................... 7
4. Remaining .....................................................................................................8
4.1 External Load ....................................................................................................... 8
5. Graphic Display and Navigation Button ....................................................9
5.1 Graphic Display Readout .................................................................................. 10
5.2 Summary Programming Points........................................................................ 11
6. Explanation Programming Points ........................................................... 12
6.1 Zero Adjustment (ZERO)................................................................................... 12
6.2 Span Adjustment (SPAN, 20 mA) ..................................................................... 12
6.3 CancelMountingPositionEect(4mA) ......................................................... 13
6.4 Display Setting of Units..................................................................................... 13
6.5 Output Selection 4-20 mA or 20-4 mA.............................................................. 13
6.6 Damping Adjustment......................................................................................... 14
6.7 Language ............................................................................................................ 14
6.8 Device Setup....................................................................................................... 14
6.9 Readout............................................................................................................... 15
6.10 Current Simulation (4-20 mA) ........................................................................... 15
6.11 Tank Linearization.............................................................................................. 16
6.11.1 Linearization Disable........................................................................... 16
6.11.2 Linearization Horizontal Tank (with Flat End) ..................................... 17
6.11.3 Linearization Horizontal Tank with a Parabolic End
(Cylindrical or Elliptic).......................................................................... 18
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6.11.4 Linearization Vertical Tank with a Conical Bottom .............................. 19
6.11.5 Linearization Vertical Tank with a Spherical Bottom ........................... 20
6.11.6 Linearization Vertical Tank with a Truncated Bottom .......................... 21
6.11.7 Free Linearization ............................................................................... 22
6.11.8 Free Linearization Manually................................................................ 23
6.12 Burst Mode ......................................................................................................... 24
6.13 Information ......................................................................................................... 25
6.14 Factory ................................................................................................................ 25
7. Programming ............................................................................................. 26
7.1 Programming with Hand Held Terminal .......................................................... 26
7.3Rotatable Display............................................................................................... 28
8. Specifications ............................................................................................ 29
9. Precautions and Warnings....................................................................... 30
Revision Information ........................................................................................... 31
7.2 HART Commands and Parameters.................................................................... 27
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<1. Introduction>
1. Introduction
The EJA565E 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". A temperature 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
deflection 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 0.1 %.
1.1 Description
The EJA565E 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.
All transmitters are temperature compensated,
which means that varying process temperatures
have nearly no effect on the accuracy of the output
signal.
1.2 Barometric Reference
The EJA565E 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 filter for the barometric reference to atmospheric
pressure.
The vent mechanism must be kept clean.
Certain variants of the EJA565E 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.
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<2. Dimensional Drawings>
2. Dimensional Drawings
nEJA565E- "T20" PROCESS CONNECTION
1/2" NPT Electrical Connection
M12 Electrical Connection
Note. Standard Drawings for all other connection types are available on request.
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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 certied 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 gure below. 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-rings (10) and (11) are
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
teh lowest point and pointing down 90 degrees
fom the horizontal.
3.4 MountingPositionEect
All transmitters are calibrated in vertical position
(diaphragm points downwards). If the transmitter
is mounted in another position, there can be a little
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 (cancel mounting position
eect). This will not aect the span.
3.5 Calibration
All transmitters are fully calibrated at the factory, to
customer specied range. If the calibration is not
specied, the transmitter will be calibrated at 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.
<3. Installing the Transmitter>
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3.6 Wiring
The figure below shows the wiring connection of the transmitter. The 2-wires must be connected to + and - on
the terminal board. The wiring terminals can be connected without a screwdriver. The opening levers of the
terminals 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.
The transmitter must always be connected with standard two-wire shielded cable. Do not run signal wiring in
open trays with power wiring, or near heavy electrical equipment (e.g. Frequency controllers 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. 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.
<3. Installing the Transmitter>
1
2
3
1Voltage Supply / Output Signal (4-20 mA)
2Internal Ground
3Terminal Connector
Insert the wires into the connector and
push the lever down by hand.
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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>
+
−
−
+
R
I
max. = Voltage - 12 V (min.)
20 mA
R
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5. Graphic Display and Navigation Button
The EJA565E has a multifunctional display where dierent values can be displayed simultaneously. The display
is equipped with a backlight. The entire menu is controlled by a navigation button. The navigation button has
the following degrees of movement: up, down, left, and right. The navigation button needs to be pushed when
confirmation or saving is needed.
Figure 1. Display EJA565E, fully rotatable (360°)
Move the navigation button up or
down to browse through various
menus. These movements can be
distinct in choices of: program
points, navigation through menus
and increase or decrease
measurement values.
Move the navigation button left or
right to navigate horizontally through
the menu or positions on the display.
<5. Display and Push Buttons>
It is always possible to return
to the previous menu. Move the
navigation button to the left to return
to the previous menu.
By pushing the navigation button
each choice will be conrmed or a
setting will be saved.
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5.1 Graphic Display Readout
When the transmitter is powered, a ash screen with the name of the transmitter and the software version
appears for a few seconds. After this the home screen will show the measured value setting as set in the factory.
A
mbar
18.5
0.0%
2 1
3
8
4
5
6
7
nExplanation of Symbols
1. Linear output: Displays when any form of linearization is applied. A Straight line means no
linearization is applied. When a linearization is applied, a curve will be displayed.
2. HART protocol: Displays a HART symbol.
3. WriteProtectionOn/O: Displays if protection against adjustments and conguration is on or o
4. Secondary Measurement: Displays the secondary measurement chosen.
5. Bargraph 0-100 % from Span: Displays the percentage of the measured span.
6. Measurement: Displays the current measurement in mA, percentage or a selectable unit.
7. Unit: Displays the selected unit.
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