Aplisens PCE-28 User manual

USER’S MANUAL
PRESSURE TRANSMITTERS
PCE-28
DIFFERERENTIAL PRESSURE TRANSMITTERS
PRE-28
AND HYDROSTATIC LEVEL PROBES
PCE-28P
EN.IO.PCE.PRE.28
AUGUST 2021
APLISENS S.A., 03-192 Warsaw, Morelowa 7 St.
tel. [phone]; fax [phone]
www.aplisens.com, e-mail: [e-mail]
Revision 01.A.001

PRODUCT CODE –see: (➔Transmitter identification).
The QR code or ID number identifies the transmitter and provides quick access to the following documentation
on the manufacturer’s website: user’s manual, declarations of conformity and copies of certificates.
PCE-28
https://www.aplisens.pl/ID/003000010000000000000000000147/
ID: 0030 0001 0000 0000 0000 0000 0001 47
PCE-28 (Exi)
https://www.aplisens.pl/ID/003000020000000000000001000164/
ID: 0030 0002 0000 0000 0000 0001 0001 64
PRE-28
https://www.aplisens.pl/ID/003500010000000000000000000132/
ID: 0035 0001 0000 0000 0000 0000 0001 32
PRE-28 (Exi)
https://www.aplisens.pl/ID/003500020000000000000001000149/
ID: 0035 0002 0000 0000 0000 0001 0001 49

PCE-28P
https://www.aplisens.pl/ID/005400010000000000000000000172/
ID: 0054 0001 0000 0000 0000 0000 0001 72
PCE-28P (Exi)
https://www.aplisens.pl/ID/005400020000000000000001000189/
ID: 0054 0002 0000 0000 0000 0001 0001 89

Symbols used
Symbol
Description
Warning to proceed strictly in accordance with the information contained in the doc-
umentation in order to ensure the safety and full functionality of the device.
Information particularly useful during installation and operation of the device.
Information particularly useful during installation and operation of an Ex type device.
Information on disposal of used equipment.
BASIC REQUIREMENTS AND SAFE USE
The manufacturer will not be liable for damage resulting from incorrect installation,
failure to maintain a suitable technical condition of the device or use of the device
other than for its intended purpose.
Installation should be carried outby qualified staffhaving the required authorizations
to install electrical and I&C equipment. The installer is responsible for performing
the installation in accordance with manual as well as with the electromagnetic com-
patibility and safety regulations and standards applicable to the type of installation.
In systems with I&C equipment, in case of leakage, there is a danger to staff due to
the medium under pressure. All safety and protection requirements must be ob-
served during installation, operation and inspections.
If a malfunction occurs, the device should be disconnected and handed over to the
manufacturer for repair.
In order to minimize the risk of malfunction and associated risks to staff, the device
is not to be installed or used in particularly unfavourable conditions, where the fol-
lowing hazards occur:
−possible mechanical impacts, excessive shocks and vibration;
−excessive temperature fluctuation;
−water vapour condensation, dusting, icing.
Changes made to the manufacturing of products may be introduced before the paper version of the
manual is updated. The up-to-date manuals are available on the manufacturer’s website:
www.aplisens.com.

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 5
TABLE OF CONTENTS
1. INTRODUCTION ......................................................................................... 7
1.1. Purpose of the document.......................................................................................................7
2. SAFETY ...................................................................................................... 7
3. TRANSPORT AND STORAGE ................................................................... 8
3.1. Delivery check .......................................................................................................................8
3.2. Transport...............................................................................................................................8
3.3. Storage..................................................................................................................................8
4. GUARANTEE.............................................................................................. 8
5. IDENTIFICATION........................................................................................ 9
5.1. Manufacturer’s address .........................................................................................................9
5.2. Transmitter identification........................................................................................................9
5.3. CE mark, declaration of conformity........................................................................................9
6. INSTALLATION ........................................................................................ 10
6.1. General recommendations...................................................................................................10
6.1.1. Installation instructions for transmitters with separators................................................10
7. ELECTRICAL CONNECTION ................................................................... 11
7.1. Cable connection to transmitter internal terminals................................................................11
7.1.1. Connection of transmitters with PD type connector ......................................................11
7.1.2. Connection of transmitters with PZ type connector.......................................................11
7.1.3. Connection of transmitters with PK, PKD, SG i PM12 type connector (cable connection)
.....................................................................................................................................11
7.1.4. Connection of transmitters with ALW, ALM type connector ..........................................11
7.1.5. Specifications of electrical switching terminals .............................................................12
7.1.6. Cabling specification ....................................................................................................12
7.2. Earthing...............................................................................................................................12
7.3. Overvoltage protection.........................................................................................................12
7.4. Shielding, equipotential bonding ..........................................................................................12
7.5. Transmitter power supply.....................................................................................................13
7.5.1. Transmitter supply voltage ...........................................................................................13
7.5.2. Resistance load in power supply line............................................................................13
7.6. Final inspection of cabling....................................................................................................13
8. START-UP ................................................................................................ 14
8.1. Alarm configuration..............................................................................................................14
8.2. Correction of impact of transmitter mounting position on site –pressure reset.....................14
9. OPERATION ............................................................................................. 14
9.1. Local buttons.......................................................................................................................16
9.2. Local configuration of setpoints............................................................................................16
9.3. Navigation in local setpoints MENU.....................................................................................17
9.4. Acceptance of local setpoints...............................................................................................17
9.5. Structure of local setpoints MENU .......................................................................................17
10.MAINTENANCE ........................................................................................ 18
10.1. Periodic inspections.............................................................................................................18
10.2. Non-periodic inspections......................................................................................................18
10.3. Cleaning/washing ................................................................................................................18
10.3.1. Diaphragm cleaning .....................................................................................................18
10.4. Spare parts..........................................................................................................................18
10.5. Repair..................................................................................................................................18
10.6. Returns................................................................................................................................18
11.SCRAPPING, DISPOSAL ......................................................................... 19
12.HISTORY OF REVISIONS......................................................................... 19

EN.IO.PCE.PRE.28.
6 Revision 01.A.001/2021.08
I. APPENDIX Ex.01.........................................................................................20
II. APPENDIX Ex.02........................................................................................25
LIST OF DRAWINGS
Figure 1. Rotation of the housing, change of display position and access to buttons.........................14
Figure 2. Display information fields....................................................................................................15
Figure 3. Backlighting jumper view at transmitter electric board (unit display back side). ..................15
Figure 4. Diagram of the display menu (applies to ALW and ALM versions)......................................17
LIST OF TABLES
Table 1. Symbols appearing on the transmitter's nameplate................................................................9
Table 2. Connection for the current version.......................................................................................11
Table 3. Connection for the voltage version.......................................................................................11
Table 4. Permissible transmitter supply voltages...............................................................................13

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 7
1. INTRODUCTION
1.1. Purpose of the document
The subject of manual are pressure transmitters PCE-28, differential pressure transmitters PRE-28 and
hydrostatic level probes PCE-28P. The manual applies to the following versions: standard, intrinsically
safe Exi and PED version.
Within the meaning of Directive 2014/68/EU (PED), the transmitters are designed to category I,
module A. PED marking does not apply to additional equipment of the transmitters, i.e. separators,
valves, connectors, impulse tubes, etc. In the manufacturer’s EU declarations of conformity, the trans-
mitters as designed above have the CE markings. The transmitters with permissible pressure 200 bar
and lower are manufactured in accordance with good engineering practice according to article
4 point 3 of Directive 2014/68/EU.
The pressure transmitters: PCE-28, PCE-28P, PRE-28 in realization for sea uses are complied with
DNV-GL Rules for Classification of Ships, High Speed & Light Craft acc. to DNV Standard for Certifica-
tion No. 2.4, April 2006, in following Location Classes:
-Temperature: D;
-Humidity: B;
-Vibrations: B;
-EMC: B;
-Enclosure: C.
The transmitters: PCE-28, PCE-28P, PRE-28 in realization for sea uses are complied with Bureau Ver-
itas (BV) for Classification of Ships, High Speed & Light Craft acc. to the requirements of NR320 for
HBV products).
The manual contains data, tips and general recommendations for safe installation and operation of the
transmitters, as well as troubleshooting in case of possible failure.
Data on the PCE-28, PRE-28 transmitters and PCE-28P probes in intrinsically safe ver-
sion according to IECEx and ATEX are included in the appendices marked as APPEN-
DIX Ex.01 and APPENDIX Ex.02.
2. SAFETY
−The installation and start-up of the device and any activities related to operation shall be
carried out after thorough examination of the contents of user’s manual and the instruc-
tions related thereto;
−installation and maintenance should be carried out by qualified staff having the required
authorizations to install electrical and measuring devices;
−the device shall be used according to its intended purpose in line with the permissible
parameters specified on the nameplate (➔Transmitter identification);
−the protection elements used by the manufacturer to ensure transmitter safety may be
less effective if thedevice is operated in a mannernot consistent with its intendedpurpose;
−before installing or disassembling the device, it is absolutely necessary to disconnect
it from the power source;
−no repairs or alterations to the transmitter electronic system are permitted. Assessment of
damages and possible repair may only be performed by the manufacturer or authorized
representative;
−do not use instruments if damaged. In case of malfunction, the device must be put out of
operation;
−in case of transmitters equipped with factory-mounted process connector of C and CR
type, it is unacceptable to loosen the fixing screws of the connector cover.

EN.IO.PCE.PRE.28.
8 Revision 01.A.001/2021.08
3. TRANSPORT AND STORAGE
3.1. Delivery check
After receiving the delivery, please refer to the general terms and conditions of contracts available
on the manufacturer website: https://aplisens.com/ogolne_warunki_umow.html
3.2. Transport
Transport of transmitters and probes shall be carried out with the use of covered means of transport,
in original packages with diaphragm provided with protection. The packaging shall be protected against
movement and direct impact of atmospheric factors.
3.3. Storage
Transmitters and probes shall be stored in a factory packaging, in a room without vapours and aggres-
sive substances, protected against mechanical impact.
Allowable range of storage temperature:
•PCE-28 -40 ... 80°C (-40…176°F);
•PRE-28 -25 ... 80°C (-13…176°F);
•PCE-28P -25 ... 80°C (-13…176°F).
The operating temperature range and the measured medium for transmitters in Ex version
according to APPENDIX Ex.01 and APPENDIX Ex.02.
4. GUARANTEE
General terms and conditions of guarantee are available on the manufacturer's website:
www.aplisens.com/ogolne_warunki_gwarancji
The guarantee shall be repealed if the device is used against its intended use, failure
to comply with user’s manual or interference with the structure of the device.

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 9
5. IDENTIFICATION
5.1. Manufacturer’s address
APLISENS S.A.
03-192 Warsaw
Morelowa 7 St.
Poland
5.2. Transmitter identification
Depending on the version of the transmitter, the nameplates may differ in the amount of information
and parameters.
Table 1. Symbols appearing on the transmitter's nameplate
5.3. CE mark, declaration of conformity
The device has been designed to meet the highest safety standards, has been tested and has left the
factory in a condition that is safe for operation. The device complies with the applicable standards and
regulations listed in the EU Declaration of Conformity and has CE marking on nameplate.
Logo and name of manufacturer
CE mark
CE with number notified body
Manufacturer’s address
QR code
Transmitter, electrical and process connection type
Transmitter model ID
Transmitter serial number
Measuring range
Supply voltage values
Output signal
Permissible range of ambient temperature
Permissible static Pressure
IP protection rating
Year of production
Note about the obligation to read the manual
//The lower part
of the nameplate//
Special execution

EN.IO.PCE.PRE.28.
10 Revision 01.A.001/2021.08
6. INSTALLATION
6.1. General recommendations
It is recommended that in case of a gaseous medium, the transmitters should be installed
above the measuring point so that condensate may flow to the point from which the meas-
ured pressure is collected, while in case of liquid medium or steam, it should be installed
below the point of pressure intake. The configuration of impulse tubes andvalve connection
system should be selected taking into account the measurement conditions.
Differential pressure transmitters for gases PRE-28 should be obligatorily installed verti-
cally. For low measurement ranges, there may be an influence of transmitter's position and
influence of impulse lines position and liquid filling method on output signal. Any possible
misalignment of the signal should be corrected by resetting the transmitter after mounting.
PCE-28P level probes are installed in places where liquid level is measured. The probe is immersed
in the measured medium and the electronic unit with the connector is above its maximum level.
The probe pipe, with lengths over 1m, it is advisable to attach it in two places. When installing the probe
outdoors, install a canopy or booth over the electronic unit. If the probe is installed in a stream
or in a turbulent area, a conduit must be installed ➔8.2.
6.1.1. Installation instructions for transmitters with separators
The protection of the separator diaphragm can only be removed shortly before installation.
Hydrostatic pressure of the manometric liquid column in the transmitter - separator system may cause
incorrect indication of the measured value. After installation, the transmitter must be pressure-reset
➔8.2 (not available for transmitter in ALW, ALM and SG housing).
Do not clean or touch separator diaphragms using hard or pointy objects.
Separators with pressure transmitter form a closed, calibrated system filled with gauge
fluid. The opening for filling the device with gauge fluid is sealed and must not be opened.
When choosing a mounting location, it is necessary to ensure sufficient stress relief of the
capillaries tension in order to avoid excessive bending.
Incorrect installation of the sealing may result in incorrect measurement indications.
Special attention must be paid when selecting correct dimensions of the sealing.
As standard, the separators are not provided with the gaskets.

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 11
7. ELECTRICAL CONNECTION
7.1. Cable connection to transmitter internal terminals
All connection and installation operations shall be performed with disconnected supply volt-
age and other external voltages, if used.
Failure to provide proper connection of the transmitter may result in danger.
Risk of electric shock and/or ignition in potentially explosive atmospheres.
7.1.1. Connection of transmitters with PD type connector
Loosen the screw in the upper part of the connector and the nut that connects the connector to the
transmitter housing, the cable outlet can be set in any direction. It is advantageous to form the conduit
in the form of a drip loop to prevent condensation from running down towards the gland. Connect the
cables in accordance with the marking on the transmitter and Table 2 or Table 3 (depending on the
version). A correctly assembled PD connection should have tightened: the gland nut, the connection
nut to the steel housing and the screw connecting both parts of the connector
7.1.2. Connection of transmitters with PZ type connector
The electrical connection of the transmitters with the connector should be made by connecting the
signal wires to the transmitter terminals. Screw on the cover and the stuffing plug of the gland carefully,
making sure that the gasket is tightly compressed on the conduit.
7.1.3. Connection of transmitters with PK, PKD, SG i PM12 type connector (cable connection)
Electrical connections of transmitters equipped with PK, PKD, PM12 and SG type connectors are made
through a terminal box with a gland in which the converter cable connects to the further part
of the signal line. The terminal box must not be completely airtight, as the transmitter must be able to
“breathe” through a capillary in the connector cable. It is recommended to use a Aplisens S.A. PP
terminal box.
7.1.4. Connection of transmitters with ALW, ALM type connector
Electrical connections transmitters equipped with ALW type or ALM type connector is the same
as connecting transmitters with connectors PD or PM12, depending on the ordered version.
Table 2. Connection for the current version.
Connection for current version
Connector connection
Cable connection
Connector number
Type of connector
Wire colour
Type of connector
1
+
Red
+
2
-
Black
-
3
Not supported;
Green
SHIELDED CABLE
SHIELDED CABLE
Table 3. Connection for the voltage version.
Connection for voltage version
Connector connection
Cable connection
Connector number
Type of connector
Wire colour
Type of connector
1
+
Red
+
2
-
Black
-
3
Voltage
Blue
Voltage
SHIELDED CABLE
Green
SHIELDED CABLE

EN.IO.PCE.PRE.28.
12 Revision 01.A.001/2021.08
7.1.5. Specifications of electrical switching terminals
Internal electrical switching terminals are suitable for conductors with the cross-section from
0,5 to 2,5 mm2 (depending on version). The internal and external electrical ground terminal of the body
is suitable for conductors with cross-section from 0,5 to 4 mm2 (depending on version).
7.1.6. Cabling specification
Aplisens S.A. recommends using two-wire screened twisted pair cable. The outer diameter of the cable
shell from6 to9mm (for cable gland PG-9) or from8 to 10mm(forcablegland PG-11) is recommended.
7.2. Earthing
Transmitters with PD connections have a ground terminal in the connector, which should not be used
for protective groundingor for connecting the equalizing conductor; it is only used for functional ground-
ing. The transmitters withPZ connection are equipped with internal (in Ex version also external) ground-
ing terminals, to which functional or equipotential grounding conductors can be connected. In transmit-
ters with PK, PKD, SG, PM12 cable connections, the cable screens are brought out and remain at the
user's disposal. The screen of the cable should be connected on one side with the earthing point of the
measuring system. The transmitters with ALW and ALM connections are additionally equipped with
an external earthing terminal.
If the transmitter has a galvanic connection via the process connection to a well-grounded metal pipe
or vessel, additional functional grounding is not necessary. The grounding terminals in electrical
connections are as functional grounding. They should be used when the transmitter is not grounded
through the head connection stub. If it is impossible to ground the cable shield atthe power supply point
and the converter grounded through the head connector, the grounding clamps can be used to connect
the cable shield. Functional grounding is to ensure the correct operation of the anti-interference sup-
pression unit of the transmitter. In standard installations, i.e. when the transmitter is grounded through
the pipeline, and the possible cable shield is connected to the transmitter's power supply and measure-
ment system, the functional grounding terminal should not be used.
7.3. Overvoltage protection
Transmitter and Electri-
cal connection type
Protection between wires
(transil diodes) –
nominal voltages
Security between the wires, and
ground and / or casing - type
protections - nominal voltage
PCE-28, PRE-28, PCE-28P
with PD, PK connection
Standard version 36 V DC
Exi version 40 V DC
Gas limiter - 230 V DC used in Exi
only for "Version SA"
PCE-28 with PZ, PKD, SG,
SGM, PM12 connection,
ALW, ALM
Additionally, an external protective device can be used, e.g. the UZ-2 system by APLISENS or others.
7.4. Shielding, equipotential bonding
In the case of using a cable in the screen, connect the screen on one side at the point where the
transmitter is powered.

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 13
7.5. Transmitter power supply
7.5.1. Transmitter supply voltage
Power cables may be live.
There is a risk of electric shock and/or explosion.
Table 4. Permissible transmitter supply voltages.
Version and type of transmitter
Output
signal
Minimum supply
voltage
Maximum supply
voltage
Standard
Version
−PCE(R)-28
4…20 mA
7 V DC
39 V DC
0…10 V
13 V DC
30 V DC
−PCE-28P
4…20 mA
7 V DC
39 V DC
−PCE-28 ALW/ALM
(version with dis-
play)
10 V DC
39 V DC
−PCE(R)-28/TR**
−PCE-28P/TR**
10,5 V DC*
36 V DC
Exi Version
−PCE(R)-28
PCE-28P
9 V DC
28 V DC
−PCE-28 ALW/ALM
(with display)
12 V DC*
28 V DC
−PCE(R)-28/TR**
−PCE-28P/TR**
12 V DC
28 V DC
*Turning on the display backlight in the PCE-28 converters with ALW and ALM type connectors increases the
minimum supply voltage for all versions by 3 V. The way to turn the backlight on or off is shown in ➔Figure 3
** TR- design for Pressure measurements in fast changing processes.
7.5.2. Resistance load in power supply line
The power line resistance, power source resistance and other additionalserial resistances increase the
voltage drops between the power source and the transmitter terminals. The maximum current of stand-
ard transmitters under normal operation conditions is defined as I_max = 0,02 A , but during high alarm
the value of current.
The maximum resistance value in the power circuit (along with the power cables resistance) is defined
by the formula:
where:
Usup –voltage at the supply terminals of the 4…20 mA current loop [V].
Umin –minimum supply voltage of transmitter ➔Table 4. Permissible transmitter supply voltages.
RLmax –maximum power supply line resistance [Ω].
7.6. Final inspection of cabling
After completing the electrical installation of the transmitter it is necessary to check the following:
−Does the supply voltage measured at the transmitter terminals at maximum set current match
the range of supply voltage specified on the transmitter nameplate?
−Is the transmitter connected according to the information given in section (➔Cable connection
to transmitter internal terminals)?
−Are all the screws tightened?
−Are the transmitter covers tightened?
−Are the cable gland and the gland plug tightened?

EN.IO.PCE.PRE.28.
14 Revision 01.A.001/2021.08
8. START-UP
The basic data of the transmitter and probe can be read out from its nameplate (➔Transmitter identi-
fication).
Use the transmitter within the allowable pressure limits. Risk of injury due to component break-
age after exceeding the maximum permitted operating pressure.
8.1. Alarm configuration
Analog transmitters have the possibility of setting the low alarm level (about 3 mA) or high (about
25 mA). Alarms indicate damage to the pressure sensor and/or the transmitter analog circuit. The set-
ting of alarms is possible only at the production level according to the customer's order. It is not possible
to make changes and configuration of alarms in field conditions.
8.2. Correction of impact of transmitter mounting position on site –pressure reset
After installing thetransmitter, you may need to adjust the zero signal. This can be done with a precision
screwdriver and a milliammeter, or a millivoltmeter for a pressure transmitter (gauge) with zero adjust-
able for atmospheric pressure. The adjustment can be made after powering the transmitter, partially
disassembling the electrical connection and gaining access to the appropriate potentiometer marked
with the symbol "zero". At atmospheric pressure in the installation, use a potentiometer to bring the zero
signal to the initial value: 4 mA or 0.05 V depending on the output signal. At other than zero values
of the initial pressure, the zero adjustment can only be performed when the pressure at the lower limit
of the measuring range is applied to the transmitter input. The zero signal can be adjusted or shifted
within 10% of the measuring range width (FSO) from the factory-set value.
9. OPERATION
The transmitter gives the possibility of rotating the housing and adjusting the display position to the
mounting position of the body. To rotate the housing, loosen the screw (item 1), position the transmitter
housing (item 2) as required, tighten the screw (item 1). Access to the extensions (item 4) used to rotate
the display is provided after opening the front cover (item 3).
Figure 1. Rotation of the housing, change of display position and access to buttons.
1. Screw.
2. Transmitter housing.
3. Front cover.
4. Buttons.

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 15
The LCD has three primary information fields identified in the figure below as LCD1, LCD2, LCD3.
Figure 2. Display information fields.
LCD1 field - displayfield of current or guidance percent preset range display. Depending onthe display
configuration will be displayed the current value of the current line 4…20 mA with a resolution
0.1 mA, or percent guidance the preset range with a resolution of indications 1%.
LCD2 field - display field of digital value of measured pressure by transmitter, value of pressure
rescaled accordingtothe user's units or the error code. Decimal point position can be set in local MENU.
LCD3 field - information field. During normal operation is designed for continuous display of the base
unit or the user units. In case of errors in the transmitter's work, it displays an error number. In manual
mode, the local change settings menu displays options of selecting the setting. It also displays errors
related to the implementation of commands in the local menu of the settings change.
Backlight (available for versions with display: ALW or ALM) –local display is equipped in backlight
which can be switched on or off depending on needs. Turn on the backlight increases the minimum
supply voltage for all version of 3V. Enable or disable the backlight is possible using the jumper after
removing the back cover of the display. Enable or disable backlight is shown in Figure 3.
Figure 3. Backlighting jumper view at transmitter electric board (unit display back side).

EN.IO.PCE.PRE.28.
16 Revision 01.A.001/2021.08
Abbreviations of physical units of pressures and levels and their description:
INH2O
inches of water column with tempera-
ture of 0°C.
INGH
inches of mercury column with temper-
ature of 0°C.
FTH2O
feet of water column with temperature
of 20°C (68°F).
MMH2O
millimeters of water column with tem-
perature of 20°C (68°F).
MMHG
millimeters of mercury column with tem-
perature of 0°C.
PSI
pounds per square inch.
BAR
bars.
MBAR
millibars.
GSQCM
grams per square centimeter.
KGSQCM
kilograms per square centimeter.
PA
pascals.
KPA
kilopascals.
TORR
torrs.
ATM
atmosphere.
MH2O4
metres of water column with tempera-
ture of 4°C.
MPA
megapascals.
INH2O4
inches of water column with tempera-
ture of 4°C.
MMH2O4
millimeters of water column with tem-
perature of 4°C.
Abbreviations displayed during configuration via local MENU and their descriptions:
<-BACK
return to one level above in local MENU.
EXIT
going out of the local MENU.
UNIT
pressure and level unit selection menu.
TEMP
menu of selecting temperature
MISC
menu of selecting others units
SETLRV
the function allows you to assign a specific value to the 4 mA current.
SETLRV
the function allows you to assign a specific value to the 20 mA current
RESET
transmitter hot restart software menu
XX.XXX
UNIT
the function displays the current value of the beginning or the end of the displayed range. The confirmation
of the option makes it possible to assign a specific value to the beginning or the end of the set range
+/-
entering the value of the set range. The character is selected by pressing "↑" or "↓". The addition of the
digit is done by confirming the previous one and pressing the [●] button. The comma is set after the 6th
character of the parameter is confirmed. The device will confirm the acceptance of the command with the
message "DONE" or report an error number. The parameter is entered in UNIT units.
LCD2DP
Changing the position of the decimal point of the variable displayed in the LCD2 field of the display.
X.XXXX
option of selecting position of comma/decimal point.
XX.XXX
option of selecting position of comma/decimal point.
XXX.XX
option of selecting position of comma/decimal point.
XXXX.X
option of selecting position of comma/decimal point.
XXXXX.
option of selecting position of comma/decimal point.
DONE
The message of acceptance and execution of the setting change.
FILTER
Selection of the averaging time of the displayed process variable.
LCD1VR
Process variable type displayed in the LCD1 field of the display.
CURREN
The value of the current in the loop will appear on the display in the LCD1 field.
PERCEN
The percentage value of the output activation will appear on the display in the field view.
9.1. Local buttons
Local buttons are used to enable the configuration mode of some transmitter parameters and to navi-
gate through MENU and accept MENU options. The MENU can be accessed by pressing and holding
any of the buttons for at least 4 seconds. After this time, the LCD3 field of the local display will show an
EXIT message. This signals entering into the MENU navigation mode.
9.2. Local configuration of setpoints
Transmitter enables local configuration of some of the most common setpoints via local buttons and
local LCD display (available for ALW and ALM housing version).

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 17
9.3. Navigation in local setpoints MENU
The MENU can be accessed by pressing and holding any of the buttons for at least 4 seconds. After
this time, the LCD3 field of the local display will show an EXIT message. This signals entering into the
local configuration MENU. By pressing the buttons with arrows [↑] [↓] for at least 1 second you can
move up or down in MENU.
9.4. Acceptance of local setpoints
The button marked with symbol [●] is used to accept the selection. The acceptance of setpoint change
is confirmed by a DONE message displayed on LCD3. After changing the setpoint, the transmitter
leaves the local configuration change MENU. If no selection is made in the MENU mode, after
2 minutes the transmitter automatically returns to display of standard messages. The MENU can also
be left by selecting and accepting the EXIT option.
9.5. Structure of local setpoints MENU
Press and hold any of 3 buttons for 4 seconds.
When navigating in the area of the active local MENU, holding the button required to trigger the action
is minimum 1 second. Continuous pressing of the ↑ or ↓ button results in scrolling of the MENU positions
every 1 second. If the local MENU remains inactive for more than 2 minutes, after this time the trans-
mitter will automatically leave the MENU mode and will display the process variable.
Figure 4. Diagram of the display menu (applies to ALW and ALM versions).

EN.IO.PCE.PRE.28.
18 Revision 01.A.001/2021.08
10. MAINTENANCE
10.1.Periodic inspections
Periodic inspections shall be carried out in accordance with applicable standards. Duringthe inspection,
the condition of the pressure (absence of loosened elements and leaks) and electrical (check of con-
nections reliability and condition of gaskets andglands) connectors, condition ofseparating diaphragms
(tarnish, corrosion) and stability of fixing of the housing and mounting bracket (if used) shall be checked.
Check the processing characteristics by performing the operations specific for the CALIBRATION and
possibly CONFIGURATION procedure.
10.2.Non-periodic inspections
If the transmitter at the installation site has been exposed to mechanical damage, pressure overload,
hydraulic pulses, overvoltage, deposits, medium crystallization, undercutting of the diaphragm,
or incorrect operation of the transmitter is detected, the deviceshould be inspected. Checkthe condition
of the diaphragm, clean it, check the electrical functionality of the transmitter and the processing char-
acteristics.
If there is no signal in the transmission line or its value is improper, check the supply line,
connection status on terminal blocks, connectors, etc. Check if the supply voltage and load
resistance are correct.
10.3.Cleaning/washing
To remove impurities from the external surfaces of the transmitter wipe it with a cloth dampened
in water.
10.3.1. Diaphragm cleaning
The only possible method of cleaning the transmitter diaphragms is to dissolve the sludge produced.
Do not remove deposits and impurities from the transmitter diaphragms, which are
formed during operation, mechanically using tools, since the diaphragms and the trans-
mitter can be damaged.
10.4.Spare parts
Parts of the transmitter that may be worn or damaged and thus replaced:
−Transmitters with PD connector: terminal block with angular cover and gasket, and connect
or base with gasket;
−In the transmitter with PK, PKD connection - all connections;
−In the transmitter with PZ connector - cover gasket and gland, electrical connection plate with
a cover;
−In the transmitter with PM12 connection - PM12 connector;
−In the transmitter with ALW or ALM connection - cover gasket and PD or PM12 connector.
Other parts in the case of ATEX, PED type of transmitter may be replaced only
by the manufacturer or an authorized representative.
10.5.Repair
Faulty or non-operational transmitter shall be provided to the manufacturer or an authorized representa-
tive.
10.6.Returns
In the following cases, the transmitter should be returned directly to the manufacturer:
-need for repair;
-need for factory calibration;
-replacement of improperly selected/shipped transmitter.

EN.IO.PCE.PRE.28
Revision 01.A.001/2021.08 19
11. SCRAPPING, DISPOSAL
Worn or damaged devices shall be scrapped in accordance with WEEE Directive
(2012/19/EU) on waste electrical and electronic equipment or returned to the manufac-
turer.
12. HISTORY OF REVISIONS
Revision
No.
Document revision
Description of changes
-
Revision F/2018.02
Introduction of the directive ROHS editorial changes.
1
Revision G/2019.01
Updating maritime certificates.
2
Revision H/2020.01
Updating data of PED certificate.
3
01.A.001/2021.06
Initial document version. Replaces the revision H
Change of electronics, updates of supply voltages. Editorial
changes. Prepared by DBFD.

EN.IO.PCE.PRE.28.
APPENDIX Ex.01
20 Revision 01.A.001/2021.08
I. APPENDIX Ex.01
PRESSURE TRANSMITTERS TYPE: PC–28/XX/YY,
DIFFERENTIAL PRESSURE TRANSMITTERS TYPE: PR–28/XX/YY,
HYDROSTATIC LEVEL PROBES TYPE: PC–28P/XX/YY,
INTRINSICALLY SAFE VERSION acc. to ATEX and IECEx.
1.Introduction
The “Appendix Ex.01” to EN.PCE.PRE-28.02 applies to PCE-28/XX/YY, PCE-28P/XX/YY and
PRE-28/XX/YY transmitters in intrinsically safe version according to ATEX and IECEx marked on the
rating plate as shown in p. 2. Extensions XX, YY after the marking product types apply to the types
of pressure (XX) and electrical (YY) connections and will not occur later in the documentation.
The appendix contains supplementary information relating to the Ex version transmitters.
During installation and use of the intrinsically safe transmitters, reference should be made
to EN.PCE.PRE.28 together with “Appendix Ex.01”.
In the case of Ex transmitters with diaphragm seals, the "IO.SEPARATORS" manual should also
be used.
2.Using of PCE-28, PCE-28P, PRE-28 in hazardous areas
The transmitters are produced in accordance with the requirements of the following standards:
EN 60079-0:2012+A11:2013 (IEC 60079-0:2012), EN 60079-11:2012 (IEC 60079-11:2011),
EN 50303:2000.
The transmitters with PD, PK, PKM, PZ, SG, SGM electrical connection may operate in areas where
there is a risk of explosion, in accordance with the rating of the explosion protection design:
ATEX:
IECEx:
I M1 Ex ia Ma
II 1/2G Ex ia IIC T4/T5/T6 Ga/Gb
II 1D Ex ia IIIC T110ºC Da
FTZÚ12 ATEX 0193X
Ex ia Ma
Ex ia IIC T4/T5/T6 Ga/Gb
Ex ia IIIC T110ºC Da
IECEx FTZÚ13.0004X
The transmitters with PKD and PM12 electrical connection are permitted only for potentially explosive
gas atmospheres and are marked:
ATEX:
IECEx:
1/2G Ex ia IIC T4/T5/T6 Ga/Gb
FTZÚ12 ATEX 0193X
Ex ia IIC T4/T5/T6 Ga/Gb
IECEx FTZÚ13.0004X
The transmitters with ALW and ALM electrical connection are permitted for potentially explosive gas
and dust atmospheres and are marked:
ATEX:
IECEx:
I 1/2G Ex ia IIC T4 Ga/Gb (z PD or PM12)
II 1D Ex ia IIIC T110ºC Da (with connector PD)
FTZÚ12 ATEX 0193X
Ex ia IIC T4 Ga/Gb (z PD or PM12)
Ex ia IIIC T110ºC Da (with connector PD)
IECEx FTZÚ13.0004X
3.Permissible input parameters (based on data from the FTZU 12 ATEX
0193X certificates and IECEx FTZÚ 13.0004X)
The transmitters should be powered from cooperating power supply and measurement
de-vices with relevant intrinsically safe certificates, the parameters of which outputs to the
hazardous area should not exceed the permissible supply parameters for the transmitters
specified in items a) and b). Transducers in "SA" version and transmitters operating in the dust
zone area should be supplied from devices with a galvanically separated power supply. If it is
not possible to use a galvanically separated power supply, the transmitter or any metal parts
connected to it should be properly earthed, e.g. using an equipotential bonding system or an
equipotential bonding between the transmitter and the negative terminal of the power supply
barrier.