Aplisens APC-2000ALW User manual

USER’S MANUAL
PRESSURE AND DIFFERENTIAL PRESSURE TRANSMITTERS
APC-2000ALW, APR-2000ALW, APR-2000ALW/G,
APR-2000ALW with diaphragm seals
EN.IO.APC.APR.ALW
JUNE 2020
APLISENS S.A., 03-192 Warsaw, Morelowa 7 St.
tel. [phone]; fax [phone]
www.aplisens.com, e-mail: [email protected]
Revision 02.A.005

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, explosion-proof device user manual, technical information, decla-
rations of conformity and copies of certificates.
APC-2000ALW
ID:0005 0007 0005 0000 0000 0000 0001 05
https://aplisens.pl/ID/000500070005000000000000000105/00000000
APC-2000ALW (Exi)
ID: 0005 0007 0005 0000 0000 0001 0001 53
https://aplisens.pl/ID/000500070005000000000001000153/00000000
APC-2000ALW
(For sea uses)
ID:0005 0007 0005 0000 0000 0003 0001 52
https://aplisens.pl/ID/000500070005000000000003000152/00000000
APC-2000ALW (Exi)
(For sea uses)
ID:0005 0007 0005 0000 0000 0004 0001 03
https://aplisens.pl/ID/000500070005000000000004000103/00000000
APC-2000ALW (Exd)
ID:0005 0008 0006 0000 0000 0002 0001 45
https://aplisens.pl/ID/000500080006000000000002000145/00000000
APC-2000ALW (Exi/Exd)
ID:0005 0004 0006 0000 0000 0002 0001 72
https://aplisens.pl/ID/000500040006000000000002000172/00000000
APR-2000ALW
ID:0006 0007 0005 0000 0000 0000 0001 02
https://aplisens.pl/ID/000600070005000000000000000102/00000000
APR-2000ALW (Exi)
ID: 0006 0007 0005 0000 0000 0001 0001 50
https://aplisens.pl/ID/000600070005000000000001000150/00000000

APR-2000ALW
(For sea uses)
ID:0006 0007 0005 0000 0000 0003 0001 49
https://aplisens.pl/ID/000600070005000000000003000149/00000000
APR-2000ALW (Exi)
(For sea uses)
ID: 0006 0007 0005 0000 0000 0004 0001 97
https://aplisens.pl/ID/000600070005000000000004000197/00000000
APR-2000ALW (Exd)
ID:0006 0008 0006 0000 0000 0002 0001 42
https://aplisens.pl/ID/000600080006000000000002000142/00000000
APR-2000ALW (Exi/Exd)
ID:0006 0004 0006 0000 0000 0002 0001 69
https://aplisens.pl/ID/000600040006000000000002000169/00000000
APC-2000ALW (Exd)
(For sea uses)
ID:0005 0008 0006 0000 0000 0005 0001 92
https://aplisens.pl/ID/000500080006000000000005000192/00000000
APR-2000ALW (Exd)
(For sea uses)
ID:0006 0008 0006 0000 0000 0005 0001 89
https://aplisens.pl/ID/000600080006000000000005000189/00000000
APR-2000ALW/G
ID: 0008 0007 0005 0000 0000 0000 0001 93
https://aplisens.pl/ID/000800070005000000000000000193/00000000
APR-2000ALW/G (Exi)
ID: 0008 0007 0005 0000 0000 0001 0001 44
https://aplisens.pl/ID/000800070005000000000001000144/00000000

APR-2000ALW/G (Exd)
ID:0008 0008 0006 0000 0000 0002 0001 36
https://aplisens.pl/ID/000800080006000000000002000136/00000000
APR-2000ALW/G (Exi/Exd)
ID:0008 0004 0006 0000 0000 0002 0001 63
https://aplisens.pl/ID/000800040006000000000002000163/00000000
APR-2000ALW
with diaphragm seals
ID: 0007 0007 0005 0000 0000 0000 0001 96
https://aplisens.pl/ID/000700070005000000000000000196/00000000
APR-2000ALW (Exi)
with diaphragm seals
ID: 0007 0007 0005 0000 0000 0001 0001 47
https://aplisens.pl/ID/000700070005000000000001000147/00000000
APR-2000ALW (Exd)
with diaphragm seals
ID:0007 0008 0006 0000 0000 0002 0001 39
https://aplisens.pl/ID/000700080006000000000002000139/00000000
APR-2000ALW (Exi/Exd)
with diaphragm seals
ID:0007 0004 0006 0000 0000 0002 0001 66
https://aplisens.pl/ID/000700040006000000000002000166/00000000

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 out by qualified staff having the required authoriza-
tions to install electrical and I&C equipment. The installer is responsible for perform-
ing the installation in accordance with manual as well as with the electromagnetic
compatibility and safety regulations and standards applicable to the type of installa-
tion.
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.APC.APR.ALW
6Revision 02.A.005/2020.06
TABLE OF CONTENTS
1. INTRODUCTION..........................................................................................8
1.1. Purpose of the document............................................................................................8
1.2. Trademarks.................................................................................................................8
1.3. Definitions and abbreviations......................................................................................9
1.4. Transmitter set range................................................................................................10
2. SAFETY.....................................................................................................11
3. TRANSPORT AND STORAGE..................................................................12
3.1. Delivery check...........................................................................................................12
3.2. Transport...................................................................................................................12
3.3. Storage......................................................................................................................12
4. GUARANTEE ............................................................................................12
5. IDENTIFICATION.......................................................................................13
5.1. Manufacturer’s address.............................................................................................13
5.2. Transmitter identification...........................................................................................13
5.3. CE mark, declaration of conformity...........................................................................13
6. INSTALLATION.........................................................................................14
6.1. General recommendations........................................................................................14
6.1.1. Examples of transmitter installation....................................................................14
6.1.2. Installation instructions for transmitters with distance separators.......................15
7. ELECTRICAL CONNECTION....................................................................16
7.1. Cable connection to transmitter internal terminals ....................................................16
7.1.1. Cable connection ...............................................................................................16
7.1.2. Connection of transmitter with the option of using local HART communication..17
7.2. Transmitter power supply..........................................................................................19
7.2.1. Transmitter supply voltage.................................................................................19
7.2.2. Uninterruptible current measurement in 4…20 mA current loop ........................19
7.2.3. Specifications of electrical switching terminals...................................................19
7.2.4. Cabling specification ..........................................................................................19
7.2.5. Resistance load in power supply line .................................................................19
7.2.6. Shielding, equipotential bonding ........................................................................20
7.3. Equipotential bonding................................................................................................20
7.4. Overvoltage protection..............................................................................................20
7.5. Final inspection of cabling.........................................................................................20
8. OPERATION..............................................................................................21
8.1. Local buttons.............................................................................................................25
8.2. Local configuration of setpoints.................................................................................25
8.3. Navigation in local setpoints MENU ..........................................................................25
8.4. Acceptance of local setpoints....................................................................................25
8.5. Structure of local setpoints MENU ............................................................................26
8.6. Remote configuration of setpoints (HART 5/HART 7)...............................................27
8.6.1. Compatible devices............................................................................................27
8.6.2. Compatible configuration software.....................................................................27
8.6.3. Local HART communication jumper...................................................................27
9. START-UP.................................................................................................28

EN.IO.APC.APR.ALW
Revision 02.A.005/2020.06 7
9.1. Alarm configuration ...................................................................................................28
9.2. Configuration of operating mode...............................................................................30
9.3. Correction of impact of transmitter mounting position on site –pressure reset.........31
9.4. Correction of impact of spacing of distance separators on site .................................31
9.5. Flow measurements..................................................................................................31
9.6. Level measurements.................................................................................................32
9.7. Pressure and differential pressure measurements....................................................32
10.MAINTENANCE........................................................................................ 33
10.1. Periodic inspections ..................................................................................................33
10.2. Non-periodic inspections...........................................................................................33
10.3. Cleaning/washing......................................................................................................33
10.3.1. Diaphragm cleaning ...........................................................................................33
10.4. Spare parts................................................................................................................33
10.5. Repair........................................................................................................................33
10.6. Returns......................................................................................................................33
11.SCRAPPING, DISPOSAL ......................................................................... 34
12.HISTORY OF REVISIONS......................................................................... 34
LIST OF DRAWINGS
Figure 1. Set range and measurement limits.........................................................................10
Figure 2. Example nameplate. ..............................................................................................13
Figure 3. Examples of pressure transmitter installation.........................................................14
Figure 4. Examples of differential pressure transmitter installation.......................................14
Figure 5. Examples of transmitter installation on tanks.........................................................15
Figure 6. Electrical connection to transmitter. .......................................................................16
Figure 7. Electrical connection 4…20 mA of HART to transmitter in standard version..........17
Figure 8. Electrical connection 4…20 mA of HART to transmitter in Exd version. ................18
Figure 9. Electrical connection 4…20 mA of HART to transmitter in Exi version...................18
Figure 10. Rotation of the housing, change of display position and access to buttons. ........21
Figure 11. Display information fields.....................................................................................21
Figure 12. Set range current, saturation currents, alarm currents of transmitters in Exd or
Exi/Exd version......................................................................................................................28
Figure 13. Set range current, saturation currents, alarm currents of transmitters in standard
or Exi version.........................................................................................................................29
LIST OF TABLES
Table 1. Definitions and abbreviations.....................................................................................9
Table 2. Permissible transmitter supply voltages...................................................................19

EN.IO.APC.APR.ALW
8Revision 02.A.005/2020.06
1. INTRODUCTION
1.1. Purpose of the document
The subject of manual are smart pressure transmitters APC-2000ALW, smart differential pressure
transmitters APR-2000ALW, APR-2000ALW with diaphragm seals (formerly APR-2200ALW),
APR-2000ALW/G (formerly APR-2000GALW), hereinafter referred jointly to as the transmitters. The
manual applies to the following versions: standard, PED, flameproof Exd, intrinsically safe Exi and
Exi/Exd.
Within the meaning of Directive 2014/68/EU (PED), the transmitters are designed to category I, mod-
ule 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 transmitters
as designed above have the CE markings. The transmitters with permissible overload of 200 bar and
lower are manufactured in accordance with good engineering practice according to article 4 point 3 of
Directive 2014/68/EU.
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.
The manual does not cover explosion protection issues.
The use of the equipment in hazardous zones without appropriate approvals is forbid-
den. It is mandatory to read EN.IX.APC.APR.ALW Explosion-proof Device User Manual,
containing important information related to the installation of intrinsically safe and flame-
proof versions of the transmitters.
In addition, please refer to the Technical Information:
−Technical Information contains detailed technical data, parameters and recommendations for
installation and operation.
1.2. Trademarks
HART®is a registered trademark of FieldComm Group.
Windows®is a registered trademark of Microsoft Corporation.
Google Play®is a service registered and managed by Google®Inc.

EN.IO.APC.APR.ALW
Revision 02.A.005/2020.06 9
1.3. Definitions and abbreviations
Table 1. Definitions and abbreviations.
Item
no.
Abbr.
Meaning
1
LRV
"Lower Range Value" –the value of the set range expressed in physical units corresponding to the current
of 4,000 mA, i.e. 0% of the output setpoint. The set range cannot exceed the set range limits. The mini-
mum width of the set range |(URV-LRV)| is limited to 10% of the base range (URL-LRL).
2
URV
"Upper Range Value" –the value of the set range expressed in physical units corresponding to the current
of 20,000 mA, i.e. 100% of the output setpoint. The set range cannot exceed the set range limits. The
minimum width of the set range |(URV-LRV)| is limited to 10% of the base range (URL-LRL).
3
LRL
LSL
"Lower Range Limit" or "Lower Sensor Limit" - lower limit of set range expressed in physical units. Value
(URL-LRL) or (USL-LSL) is referred to as the base transmitter range.
4
URL
USL
"Upper Range Limit" or "Upper Sensor Limit" –upper limit of set range expressed in physical units. Value
(URL-LRL) or (USL-LSL) is referred to as the base transmitter range.
5
LPL
"Lower Processing Limit" –lower limit of digital processing of measured value. The transmitter processes
a digital measurement up to 50% of the base range width below the lower limit of set range LRL (LSL).
After reaching the LPL and when below this value up to LSAL, the transmitter freezes the refreshing of
digital value of the measurement. In this situation, for Exd or Exi/Exd version of transmitter, error number
E0128 will be displayed on the display and diagnostic alarm mode I_AL<3,600 mA will be set. For stand-
ard or Exi transmitters, a message ‘’UndEr’’ will be displayed, and diagnostic alarm mode will be activated
depending on the settings I_AL<3,650 mA or I_AL>21,500 mA.
Additionally, collective status PV_OUT_OF_LIMITS and status PV_LOW_LIMITED in the Transducer
Block will be set, which can be read out in the diagnostic tab via HART communication.
6
UPL
"Upper Processing Limit" –upper limit of digital processing of measured value. The transmitter processes
a digital measurement up to 50% of the base range width above the upper limit of set range URL (USL).
After reaching the UPL and when above this value up to USAL, the transmitter freezes the refreshing of
digital value of the measurement. In this situation, for Exd or Exi/Exd version of transmitter, error number
E0128 will be displayed on the display and diagnostic alarm mode I_AL<3,600 mA will be set. For stand-
ard or Exi transmitters, a message ‘’OvEr’’ will be displayed and diagnostic alarm mode will be activated
depending on the settings I_AL<3,650 mA or I_AL>21,500 mA.
Additionally, collective status PV_OUT_OF_LIMITS and status PV_HIGH_LIMITED in the Transducer
Block will be set, which can be read out in the diagnostic tab via HART communication.
7
LSAL
"Lower Saturation Limit" - lower limit of the A/D transmitter processing range. The lower limit of the A/D
transmitter saturation is on the pressure/differential pressure scale below the LPL point and is associated
with the minimum pressure, at which the analogue-digital pressure measurement transmitter reaches the
lower limit of the processing capacity. The exact determination of this pressure is not possible, however
usually the pressure does not exceed the pressure corresponding to 200% of the base range width (URL-
LRL) below the lower limit of the digital processing of measured LPL value. After reaching LSAL and
when below this value, error number E0136 will be displayed on the display and the diagnostic alarm
mode I_AL<3,600 mA will be activated (applies to Exd or Exi/Exd version of transmitter). For standard or
Exi transmitters, error number E0256 will be displayed and diagnostic alarm mode will be activated de-
pending on the settings I_AL<3,650 mA or I_AL>21,500 mA.
Additionally, collective status SENSOR_FAULT, PV_OUT_OF_LIMITS, status
NOREF+ERR@AIN1_AD7794 in the Sensor Block and PV_LOW_LIMITED in the Transducer Block will
be set, which can be read out in the diagnostic tab via HART communication.
8
USAL
"Upper Saturation Limit" - upper limit of the A/D transmitter processing range. The upper limit saturation
point of A/D transmitter is on the pressure/differential pressure scale above the UPL point and is associ-
ated with the maximum pressure at which the analogue-digital pressure measurement transmitter reaches
the upper limit of the processing capacity. The exact determination of this pressure is not possible, how-
ever usually the pressure does not exceed the pressure corresponding to 200% of the base range width
(URL-LRL) above the upper limit of the digital processing of measured UPL value. After reaching USAL
and when above this value, error number E0136 will be displayed on the display and the diagnostic alarm
mode I_AL<3,600 mA will be activated (applies to Exd or Exi/Exd version of transmitter). For standard or
Exi transmitters, error number E0256 will be displayed and diagnostic alarm mode will be activated de-
pending on the settings I_AL<3,650 mA or I_AL>21,500 mA.
Additionally, collective status SENSOR_FAULT, PV_OUT_OF_LIMITS, status
NOREF+ERR@AIN1_AD7794 in the Sensor Block and PV_HIGH_LIMITED in the Transducer Block will
be set, which can be read out in the diagnostic tab via HART communication.
9
AL_L
Low current alarm.
10
AL_H
High current alarm.
11
I_AL
The alarm current set by the transmitter controller in the current loop.

EN.IO.APC.APR.ALW
10 Revision 02.A.005/2020.06
1.4. Transmitter set range
The figure below shows the transmitter set range and limits related to allowable set range, digital pro-
cessing range and saturation limits of A/D pressure measurement transducer. As standard, values of
4 mA/20 mA currents are assigned to LRV/URV points. In order to obtain reverse characteristics, it is
possible to reverse the assignment so that the LRV/URV points are assigned to 20 mA/4 mA currents.
Figure 1. Set range and measurement limits.

EN.IO.APC.APR.ALW
Revision 02.A.005/2020.06 11
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 the device is operated in a manner not consistent with its intended pur-
pose;
−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 author-
ized 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.APC.APR.ALW
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3. TRANSPORT AND STORAGE
3.1. Delivery check
After receiving the delivery of the equipment, it is necessary to:
−make sure that the packaging and its contents were not damaged during transport;
−check the completeness and correctness of the received order, and make sure no parts are
missing.
3.2. Transport
Transport of transmitters 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 move-
ment and direct impact of atmospheric factors.
3.3. Storage
Transmitters shall be stored in a factory packaging, in a room without vapours and aggressive sub-
stances, protected against mechanical impact.
Allowable range of storage temperature:
-40 ... 80°C (-40 ... 176°F).
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.APC.APR.ALW
Revision 02.A.005/2020.06 13
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.
Figure 2. Example nameplate.
1. Logo and name of manufacturer.
2. CE mark.
3. Product QR code.
4. Transmitter type.
5. Type of process connector.
6. Transmitter model ID.
7. Base measuring range.
8. Permissible range of ambient temperature.
9. Maximum static pressure.
10.Supply voltage values.
11.Output signal.
12.Transmitter serial number.
13.Type of electrical connection.
14.Year of manufacture.
15.Material of wetted parts.
16.IP protection rating.
17.Note about the obligation to read the manual.
18.Designation of the explosion-proof type, certificate
designation in case of ATEX and/or IECEx certified
transmitters.
19.Manufacturer’s address.
20.Parameters: PS –maximum allowable pressure;
PT –test pressure; TS –maximum/minimum allowa-
ble temperature for PED version. PS, PT, TS values
are given for PED version when the PS pressure is
higher than 200 bar.
21.Number of the notified body for transmitters with
ATEX certificate.
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.

EN.IO.APC.APR.ALW
14 Revision 02.A.005/2020.06
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 and valve connec-
tion system should be selected taking into account the measurement conditions.
Differential pressure transmitters for gases APR-2000ALW/G should be obligatorily in-
stalled vertically.
6.1.1. Examples of transmitter installation
Figure 3. Examples of pressure transmitter installation.
Figure 4. Examples of differential pressure transmitter installation.

EN.IO.APC.APR.ALW
Revision 02.A.005/2020.06 15
Figure 5. Examples of transmitter installation on tanks.
6.1.2. Installation instructions for transmitters with distance 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.
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.APC.APR.ALW
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7. ELECTRICAL CONNECTION
7.1. Cable connection to transmitter internal terminals
All connection and installation operations shall be performed with disconnected supply
voltage 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. Cable connection
In order to perform correct connection of the cables, the following steps shall be performed:
−disconnect power supply of the supply cable line before connecting the transmitter cabling;
−unscrew the rear cover of the transmitter body to access the power connector;
−pull the cable through the cable gland;
−connect the transmitter according to the figure below, paying attention to the correct tightening
of the bolts fixing the conductor core to the terminal;
−check the correct fixing of the HART local communication jumper;
−tighten the rear cover of the transmitter body;
−leaving a small clearance of the cable inside the body, tighten the gland nut so that the gland
seal is clamped on the power cable.
Figure 6. Electrical connection to transmitter.
1. Housing.
2. Jumper for local HART com-
munication.
3. Internal ground terminal.
4. External ground terminal.
5. Transmitter power terminals,
4…20 mA current loop.
6. Ammeter connection termi-
nals for uninterruptible current
measurement (optional).
7. Designation SA variant with
integrated overvoltage protec-
tion (applies to Exi version).
In hazardous zone, do not unscrew the housing covers after connecting the Exd flameproof
transmitter to the power source.

EN.IO.APC.APR.ALW
Revision 02.A.005/2020.06 17
7.1.2. Connection of transmitter with the option of using local HART communication
The transmitter allows to use the local HART communication. To do this you can use a HART com-
municator unit or modem connected to a computer or a smartphone.
In order to establish the local communication, it is necessary to:
−remove HART communication jumper (item 2);
−connect the communicator or modem to electrical terminals (item 7).
Opening of the HART jumper results in applying resistance of 240 Ω in series in line
4...20 mA. This resistance reduces voltage on transmitter supply terminals by approximately
5 V DC for Exd or Exi/Exd transmitters (5,28 V DC for standard or Exi transmitters) for max-
imum current that can be set by the transmitter. To avoid the supply voltage deficit on the
transmitter terminals, the HART jumper must be dismantled only for the time of per-
forming the HART local communication.
Connection diagram of the communicator or modem to transmitter power supply and measurement
system is presented below:
Figure 7. Electrical connection 4…20 mA of HART to transmitter in standard version.
1. Housing.
2. Removed local HART communication jumper.
3. Internal ground terminal.
4. External ground terminal.
5. Transmitter power terminals, 4…20 mA current loop.
6. Ammeter connection terminals for uninterruptible current measurement (optional).
7. Terminals –point of connection of the communicator or HART modem.

EN.IO.APC.APR.ALW
18 Revision 02.A.005/2020.06
Figure 8. Electrical connection 4…20 mA of HART to transmitter in Exd version.
Figure 9. Electrical connection 4…20 mA of HART to transmitter in Exi version.
It is mandatory to read EN.IX.APC.APR.ALW Explosion-proof Device User Manual, contain-
ing important information related to the installation of intrinsically safe and flameproof ver-
sions of the transmitter.
The converter may also be operated using Aplisens Mobile Configurator installed on smartphones
with Android system and connected using wireless communication.
The software is available on Google Play®
https://play.google.com/store/apps/details?id=com.aplisens.mobile.amc

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Revision 02.A.005/2020.06 19
7.2. Transmitter power supply
7.2.1. Transmitter supply voltage
Power cables may be live.
There is a risk of electric shock and/or explosion.
Installation of the transmitter in explosion-risk atmospheres must comply with national
standards and regulations.
All explosion protection data is given in manual EN.IX.APC.APR.ALW.
Table 2. Permissible transmitter supply voltages.
Version
Minimum supply voltage
Maximum supply voltage
Exi i Exd*
11,5 V DC**
30 V DC (Exi)
55 V DC (Exd)
Exd*
13,5 V DC***
55 V DC
Standard
10,0 V DC
55 V DC
Exi*
10,5 V DC
30 V DC
* For details on intrinsically safe and flameproof version see manual EN.IX.APC.APR.ALW.
** Minimum supply voltage with backlight off. Possibility of turning on the backlight only by manufacturer at
the transmitter production stage (then Umin=14,5 V DC).
*** Minimum supply voltage with backlight on. Possibility of turning off the backlight only by manufacturer at
the transmitter production stage (then Umin=10,5 V DC).
7.2.2. Uninterruptible current measurement in 4…20 mA current loop
The transmitter is capable of continuous current measurement in the current loop using an ammeter.
In order to maintain the current measurement error below 0,05%, the internal resistance of the amme-
ter shall be less than 10 Ω.
Ammeter connection diagram –see: (➔Figure 6. Electrical connection to transmitter.).
7.2.3. Specifications of electrical switching terminals
Internal electrical switching terminals are suitable for conductors with the cross-section from
0,5 to 2,5 mm2. The internal and external electrical ground terminal of the body is suitable for conduc-
tors with cross-section from od 0,5 to 5 mm2.
7.2.4. Cabling specification
Aplisens S.A. recommends using two-wire screened twisted pair cable. The outer diameter of the ca-
ble shell from 5 to 9 mm is recommended.
7.2.5. Resistance load in power supply line
The power line resistance, power source resistance and other additional serial resistances increase
the voltage drops between the power source and the transmitter terminals. The maximum current of
Exd or Exi/Exd transmitters under normal operation conditions is defined as I_max = 20,500 mA + E,
where E is the acceptable safety error, which is ± 0,160 mA. The maximum current of standard or Exi
transmitters under normal operation conditions is 20,500 mA, but during high alarm the value of cur-
rent I_max is 22,000 mA.

EN.IO.APC.APR.ALW
20 Revision 02.A.005/2020.06
The maximum resistance value in the power circuit (along with the power cables resistance) is de-
fined by the formula:
(for transmitters in Exd, Exi/Exd version)
(for transmitters in standard, Exi version)
where:
U –voltage at the supply terminals of the 4…20 mA current loop [V].
Umin –minimum supply voltage of transmitter ➔Table 2. Permissible transmitter supply voltages.
RL_MAX –maximum power supply line resistance [Ω].
7.2.6. Shielding, equipotential bonding
When using a cable in the screen, connect the screen on one side at the transmitter’s power supply
point.
7.3. Equipotential bonding
When using an intrinsically safe transmitter with an additional overvoltage protection, having the des-
ignation “SA version”on the plate, the transmitter should be powered from a galvanically separated
power source or, if this is not possible, equipotential bonding of the transmitter and the power supply
device should be ensured by means of equipotential bonding conductors. In this respect the locally
applicable regulations must be observed.
7.4. Overvoltage protection
Transmitters comply with EMC standards for safety-related products used in general industrial envi-
ronment. Transmitters in standard and flameproof versions are fitted with overvoltage protection. In
intrinsically safe transmitters, in order to increase the resistance to excessive surge, it is possible to
use the overvoltage protection SA version. Transmitters with integrated overvoltage protection SA
should be grounded.
Overvoltage protection parameters in transmitters in standard, Exd or Exi SA versions:
−discharge threshold voltage: 230 V DC;
−discharge threshold impulse voltage: 450 V (impulse 100 V/µs);
−discharge threshold impulse voltage: 600 V (impulse 1000 V/µs);
−discharge current for 1 surge: 20 kA, 8/20 µs;
−discharge current for 10 surges: 10 kA, 8/20 µs;
−discharge current for 300 surges: 200 A, 10/1000 µs.
7.5. 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?