Aplisens SGE-25.SMART User manual

USER’S MANUAL
SMART LEVEL PROBES
SGE-25.Smart, SGE-25S.Smart, SGE-25C.Smart,
SGE-25S.Smart/Titan
EN.IO.SGE.25.SMART
SEPTEMBER 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: (➔Probe identification).
The QR code or ID number identifies the probe and provides quick access to the following documentation on the man-
ufacturer’s website: user’s manual, declarations of conformity and copies of certificates.
SGE-25.SMART
ID: 0042 0001 0001 0000 0000 0000 0001 83
https://www.aplisens.pl/ID/004200010001000000000000000183/
SGE-25.SMART (Exi)
ID: 0042 0002 0001 0000 0000 0001 0001 03
https://www.aplisens.pl/ID/004200020001000000000001000103/
SGE-25S.SMART
ID: 0043 0001 0001 0000 0000 0000 0001 80
https://www.aplisens.pl/ID/004300010001000000000000000180/

SGE-25S.SMART (Exi)
ID: 0043 0002 0001 0000 0000 0001 0001 97
https://www.aplisens.pl/ID/004300020001000000000001000197/
SGE-25C.SMART
ID: 0055 0001 0001 0000 0000 0000 0001 44
https://www.aplisens.pl/ID/005500010001000000000000000144/
SGE-25C.SMART (Exi)
ID: 0055 0002 0001 0000 0000 0001 0001 61
https://www.aplisens.pl/ID/005500020001000000000001000161/
SGE-25S.SMART/TITAN
ID: 0042 0001 0001 0001 0000 0000 0001 91
https://www.aplisens.pl/ID/004200010001000100000000000191/

Symbols used
Symbol
Description
Warning to proceed strictly in accordance with the information contained in the
documentation 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 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
compatibility 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
observed 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
following hazards occur:
-possible mechanical impacts, excessive shocks and vibration;
-excessive temperature fluctuation;
-freezing of the medium.
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.SGE.25.SMART
Revision 01.A.001/2021.09 5
TABLE OF CONTENTS
1. INTRODUCTION ......................................................................................... 7
1.1. Purpose of the document.......................................................................................................7
1.2. Registered trademarks...........................................................................................................7
1.3. Set range...............................................................................................................................7
1.4. Definition and abbreviations...................................................................................................8
2. SAFETY ...................................................................................................... 9
3. TRANSPORT AND STORAGE ................................................................... 9
3.1. Delivery check .......................................................................................................................9
3.2. Transport...............................................................................................................................9
3.3. Storage..................................................................................................................................9
4. GUARANTEE.............................................................................................. 9
5. IDENTIFICATION...................................................................................... 10
5.1. Manufacturer address..........................................................................................................10
5.2. Probe identification..............................................................................................................10
5.3. CE mark, declaration of conformity......................................................................................10
6. INSTALLATION ........................................................................................ 11
6.1. General recommendation ....................................................................................................11
7. ELECTRICAL CONNECTION ................................................................... 12
7.1. Cable connection with possibility of local HART communication..........................................12
7.1.1. Level probe with internal temperature sensor PT .........................................................13
7.2. Power supply voltage...........................................................................................................13
7.2.1. Resistive load in the supply line....................................................................................13
7.2.2. Shielding......................................................................................................................14
7.3. Overvoltage protection.........................................................................................................14
7.4. Final wiring inspection..........................................................................................................14
8. START-UP ................................................................................................ 15
8.1. Alarm configuration..............................................................................................................15
8.2. Operating mode configuration..............................................................................................15
8.3. Correction of the impact of working position on the object –reset (zeroing).........................16
9. OPERATION ............................................................................................. 16
9.1. Remote configuration of settings (HART )............................................................................16
9.1.1. Compatible devices......................................................................................................16
9.1.2. Compatible configuration software ...............................................................................16
10.MAINTENANCE ........................................................................................ 17
10.1. Periodic inspections.............................................................................................................17
10.1.1. External overview.........................................................................................................17
10.1.2. “Zero” check.................................................................................................................17
10.2. Non periodic inspections......................................................................................................17
10.3. Cleaning/Washing................................................................................................................17
10.4. Diaphragm cleaning.............................................................................................................17
10.5. Spare parts..........................................................................................................................17
10.6. Repair..................................................................................................................................17
10.7. Return..................................................................................................................................17
11.SCRAPING, DISPOSAL............................................................................ 18
12.HISTORY OF REVISION........................................................................... 18
Explosion-proof Device Manual EN.IX.SGE.25.SMART.............................. 19

EN.IO.SGE.25.SMART
6 Revision 01.A.001/2021.09
LIST OF DRAWNINGS
Figure 1. Set range and measurements limits.....................................................................................7
Figure 2. Mounting brackets for probes.............................................................................................11
Figure 3. Diaphragm cover for SGE-25C.Smart and SGE-25S.Smart probes. ..................................11
Figure 4.Electrical connection 4…20 mA of probes with HART communication. ..............................12
Figure 5. Set range current, saturation currents, alarm currents........................................................15
LIST OF TABLES
Table 1. Definition and abbreviations...................................................................................................8
Table 2.Symbols appearing on the probe’s.......................................................................................10
Table 3. Permissible power supply voltage........................................................................................13

EN.IO.SGE.25.SMART
Revision 01.A.001/2021.09 7
1. INTRODUCTION
1.1. Purpose of the document
The subject of manual are smart level probes: SGE-25.Smart, SGE-25S.Smart, SGE-25C.Smart and
SGE-25S.Smart/Titan hereinafter referred to as probes in the manual. The manual applies to the fol-
lowing versions: standard and intrinsically safe Exi.
The manual contains data, guidelines and general recommendations for the safe installation and
operation of the probes, as well as procedures in the event of a possible failure.
It is forbidden to use devices in hazardous areas without appropriate permits.
Data on the hydrostatic level probes SGE-25.SMART, SGE-25S.SMART and
SGE-25C.SMART in intrinsically safe version according to ATEX are included in the
Explosion-proof Device Manual marked as EN.IX.SG.25.SMART.
1.2. Registered trademarks
HART®is registered trademark of FieldComm Group.
Windows®is registered trademark of Microsoft Corporation.
Google Play®is service registered and operated by Google®Inc.
1.3. Set range
The following figure shows the set range of the probe and the limits associated with the allowable set
range, the digital conversion range and the saturation limits of the pressure measurement A/D
converter. By default, the LRV/URV points are assigned current values of 4 mA/20 mA. For a reversed
characteristic it is possible to reverse the assignment so that the LRV/URV points are assigned current
values of 20 mA/4 mA.
Figure 1. Set range and measurements limits.

EN.IO.SGE.25.SMART
8 Revision 01.A.001/2021.09
1.4. Definition and abbreviations
Table 1. Definition and abbreviations.
L.P.
Abbreviation
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 minimum 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 probe 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 probe range.
5
LPL
"Lower Processing Limit" –lower limit of digital processing of measured value. The probe 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 thisvalue up to LSAL, theprobe freezes therefreshing
of digital value of the measurement.
6
UPL
"Upper Processing Limit" –upper limit of digital processing of measured value. The probe 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 probe freezes the
refreshing of digital value of the measurement.
7
LSAL
"Lower Saturation Limit" - lower limit of the A/D probe processing range. The lower limit of the A/D
probe 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 probe reaches the
lower limit of the processing capacity. The exact determination of this pressure is not possible,
however usually the pressure does not exceed thepressure corresponding to 200% of thebase range
width (URL-LRL) below the lower limit of the digital processing of measured LPL value.
8
USAL
"Upper Saturation Limit" - upper limit of the A/D probe processing range. The upper limit saturation
point of A/D probe is on the pressure/differential pressure scale above the UPL point and is
associated with the maximum pressure at which the analogue-digital pressure measurement probe
reaches the upper 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) above the upper limit of the digital processing of measured UPL value.
9
AL_L
Low current alarm.
10
AL_H
High current alarm.
11
I_AL
The alarm current set by the probe controller in the current loop.

EN.IO.SGE.25.SMART
Revision 01.A.001/2021.09 9
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 instructions 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 (➔Probe identification);
−the protection elements used by themanufacturerto ensure probes safetymay be
less effective if the device is operated in a manner not consistent with its intended
purpose;
−before installing or disassembling the device, it is absolutely necessary to
disconnect it from the power source;
−no repairs or alterations to the probes 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.
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 probes shallbe carried out withthe use of coveredmeans oftransport, in original packages
with diaphragm provided with protection. The packaging shall be protected against movement and
direct impact of atmospheric factors.
3.3. Storage
Probes shall be stored in a factory packaging, in a room without vapours and aggressive substances,
protected against mechanical impact. The cable should be coiled into a circle
with a diameter of ≥ 30 cm, the coils of the coil should be fixed in relation to each other and the whole
should be fixed in the package. Avoid kinking the cable at the point where it exits the gland.
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.SGE.25.SMART
10 Revision 01.A.001/2021.09
5. IDENTIFICATION
5.1. Manufacturer address
APLISENS S.A.
03-192 Warsaw
Morelowa 7 St
Poland
5.2. Probe identification
Depending on the version of the probe, the nameplates may differ in the amount of information and
parameters.
Table 2.Symbols appearing on the probe’s.
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 mark with number notified body
Manufacturer address
QR code
Probe type
Probe model ID
Probe serial number
Measuring range
Power supply voltage
Output signal
Permissible range of ambient temperature
IP protection rating
Year of production
Note about the obligation of read the manual
//Lower part of
the nameplate//
Special version

EN.IO.SGE.25.SMART
Revision 01.A.001/2021.09 11
6. INSTALLATION
6.1. General recommendation
Smart level probes are installed where liquid levels are measured in wells, tanks, boreholes, etc. The
probe is immersed in themeasuredmedium. The probe is immersedinthemeasuredmedium. A special
cable extends above the medium level, which can be connected directly to the probe device or to a
junction box. The probe may be hung on the supply cable using Aplisens SG cable hanger (item 1 on
Fig. 2). In case of frequent removal of the probe or when there is a risk of catching on protruding
elements during pulling up, it is recommended to hang the probe on a steel cable using the carrying
eye (item 2 on Fig. 2).
Figure 2. Mounting brackets for probes.
If there is a possibility of turbulence, the probe should be installed in a casing pipe (e.g. PVC).
Do not clean or touch the diaphragm with hard or sharp objects. Hang the probe with the additional
Teflon shielding on the cable on the suspension cable or on the inner cable (do not grab the Teflon
shield).
Immediately before inserting the probe into the medium to be measured, remove the
protective cover from the front membrane (not applicable SGE-25.Smart).
During installation protect the probe from mechanical impacts.
Figure 3. Diaphragm cover for SGE-25C.Smart and SGE-25S.Smart probes.

EN.IO.SGE.25.SMART
12 Revision 01.A.001/2021.09
7. ELECTRICAL CONNECTION
7.1. Cable connection with possibility of local HART communication
All connection and assembly activities must be performed with the power supply
disconnected and other external voltages, if used.
Incorrect connection of the probe may endanger safety.
Risk of electric shock and / or ignition in hazardous areas.
Make the electrical connection according to the diagram below. If the transmission line is led in the
open air, to distant rooms, it is recommended to assemble a junction box, e.g. PP type manufactured
by Aplisens S.A., to connect the probe cable with the further part of the transmission line. The junction
box should have IP65 protection grade and at the same time it should be unsealed enough to ensure
"breathing" of the probe's measuring element through the capillary tube which is a part of the cable.
Do not allow the outlet of the capillary to get dirty or water to get inside it.
In case of a long transmission line, it is recommended to lead the cable from the end of the probe cable
through a "twisted pair", and the input to the cooperating devices should also be equipped with an
overvoltage protection device, e.g. Aplisens UZ-2 system.
Figure 4.Electrical connection 4…20 mA of probes with HART communication.
The scheme for connecting the communicator or modem to the power supply and measurement
installation is shown in Figure 4.
The Aplisens HART/USB converter can also be supported by the Aplisens Mobile Configurator software
installed on an Android smartphone using wireless communication. The software is available on Google
Play®:https://play.google.com/store/apps/details?id=com.aplisens.mobile.amc

EN.IO.SGE.25.SMART
Revision 01.A.001/2021.09 13
7.1.1. Level probe with internal temperature sensor PT
Electrical connections and wire colours in the level probe cable with 4...20 mA output signal with
resistance temperature sensors:
Level probe:
−red: „+” power supply;
−black: „–„ power supply;
−green: wire shield (if it led out);
Resistance sensor:
−white
−white
Sensor in four wire connection;
−brown
−brown
−white
−brown
−brown
Sensor in three wire connection;
7.2. Power supply voltage
Supply cables may be live.
There is a risk of electric shock and/or explosion.
Installation in potentially explosive atmospheres must comply with local standards and
regulations.
Table 3. Permissible power supply voltage.
Probe type
Output
signal
Minimum power
supply voltage
Maximum power
supply voltage
SGE-25.Smart,
SGE-25S.Smart,
SGE-25C.Smart,
SGE-25S.Smart/Titan
4…20 mA
7,5 V DC
55 V DC
30 V DC*
*For probes in intrinsically safe version Exi (not applicable SGE-25S.Smart/Titan).
7.2.1. Resistive load in the supply line
Power line resistance, power source resistance and additional series resistances increase the voltage
drops between the power source and the probe. The maximum current of the device in normal operation
is 20,500 mA, but in high alarm condition the current I_max is 22,000 mA.
The maximumvalue ofresistance inthe supply circuit (together with theresistances ofthe supply wires)
is given by the formula:
Where:
Uzas - voltage on terminals of current loop power supply 4…20 mA in [V].
Umin –minimum power supply voltage of probe (➔Table 3. Permissible power supply voltage.)
RL_MAX –maximum supply line resistance w [Ω].
Installation in hazardous areas must comply with local standards and regulations.

EN.IO.SGE.25.SMART
14 Revision 01.A.001/2021.09
7.2.2. Shielding
The cable shield (green wire) is led out from the probe's power supply and measurement cable. The
manufacturer recommends connecting the probe cable shield to the measuring system grounding point.
The earthing of the cable screen is especially justified in the environment of high EMC disturbances.
In a battery-assisted piezometric stand, the cable screen may or may not be grounded.
7.3. Overvoltage protection
Probes can be exposed to switching surges, or those resulting from lightning discharges. Protection
against surges between the wires of the transmission line is provided by surge diodes.
For protection against overvoltage between the transmission line and the ground or the enclosure
(which are not protected by diodes connected between the line conductors), the probes in standard
versions and Exi in SA version are equipped with additional protection in the form of surge arresters.
For systems with long signal transmission lines, it is recommended the using of an additional Aplisens
UZ-2 overvoltage protection circuit.
7.4. Final wiring inspection
After completing the electrical installation of the probe, check the following:
-that the supply voltage measured at the power supply terminals of the cable connection at the
maximum current is in accordance with the supply voltage range specified on the nameplate;
-that the probe is connected in accordance with the information given in section (➔Cable
connection with possibility of local HART communication)
-if a junction box is used, that the glands are tightened.

EN.IO.SGE.25.SMART
Revision 01.A.001/2021.09 15
8. START-UP
The basic data of the probe can be read from the nameplate of the device (➔Probe identification).
8.1. Alarm configuration
Smart level probes have developed internal diagnostics that watch over the operation of their electronic
circuits, process and environmental parameters. Diagnosed hazardous conditions or internal circuit
malfunctions result in an alarm current setting depending on the configuration of I_AL<3,650 mA
(nominally 3,600 mA) or I_AL>21,500 mA (nominally 22,000 mA). The user has the option to
enable/disable current alarms. By default the current alarms are disabled.
The following figure shows the normal operation ranges of the process output and the saturation and
alarm current ranges.
Figure 5. Set range current, saturation currents, alarm currents.
1 –Set current area 4...20 mA corresponding to the 0...100% of the process output.
2 –Lower saturation current 3,800 mA for NAMUR mode.
3 –Lower saturation current 3,900 mA for NORMAL mode.
4 –Upper saturation current 20,500 mA for NAMUR i NORMAL modes.
5 –Alarm current area AL_L<3,650 mA for internal diagnostic alarms.
6 –Alarm current area AL_H>21,500 mA for internal diagnostic alarms.
8.2. Operating mode configuration
The following parameters must be set up before working with the probe:
−Basic unit;
−Processing characteristic;
−Beginning of the LRV set range;
−End of the URV set range URV;
−Damping time constant;
−NORMAL/NAMUR analog operating mode;
−Operation mode of the analog mode in the AL_L/AL_H alarm state;
−Alerting mode of the environmental event and defects;
−Label (TAG/LONG_TAG);
−Setting a lock password to change settings.

EN.IO.SGE.25.SMART
16 Revision 01.A.001/2021.09
8.3. Correction of the impact of working position on the object –reset (zeroing)
It is possible to "zero" the probe, which is used, for example, to compensate for deviations arising from
the influence of initial immersion at a level assumed to be "zero".
Probes can also be calibrated by relating their readings to an input pressure controlled by a reference
instrument. Zeroing and calibration are collectively called "CALIBRATION".
CONFIGURATION AND CALIBRATION of the probe is performed using the Aplisens KAP communi-
cator, or a PC with HART/RS232 converter and Aplisens "Raport 2”software.
Catalogue cards and operating manuals for HART communication tools (i.e. KAP-03 communicator,
KAP-03Ex; HART/USB Converter; "Raport 2" software) are available on the manufacturer's website at
www.aplisens.com
9. OPERATION
9.1. Remote configuration of settings (HART )
The probe allows to read and configure parameters via HART communication using a 4...20 mA loop
as physical layer for FSK BELL 202 modulation.
9.1.1. Compatible devices
The following devices can cooperate with the probe:
−communicator of Aplisens S.A. company. KAP-03, KAP-03Ex (HART only);
−communicators of other companies using DDL and DTM libraries;
−PC equipped with HART modem (e.g. Aplisens HART/USB converter) with Windows 7 or
Windows 10 operating system with installed “Raport 2”software;
−PCs with HART modem using third party software accepting DDL and DTM libraries;
−smartphones with Android system cooperating with a converter enabling wireless
communication (e.g. Aplisens HART/USB converter) using Aplisens Mobile Configurator
software. The software is available on Google Play under the following link:
https://play.google.com/store/apps/details?id=com.aplisens.mobile.amc
9.1.2. Compatible configuration software
-Raport 2 Aplisens compatible with Windows 7 or Windows 10;
-Aplisens Mobile Configurator compatible with Android;
-any third-party software that accepts DDL and DTM libraries.

EN.IO.SGE.25.SMART
Revision 01.A.001/2021.09 17
10. MAINTENANCE
10.1.Periodic inspections
Periodic inspections should be carried out in accordance with the standards applicable to the user.
Check the processing characteristics by following the steps appropriate to the calibration and
configuration.
10.1.1. External overview
During the inspection, check the condition of the separating membranes (tarnish, corrosion) and the
electrical connection (check the condition of the cable), as well as the stability of the handle (if used).
Check for signs of mechanical damage in the form of impact marks or dents.
10.1.2. “Zero”check
Every 2 years or in accordance with the user's standards, check the probe's "zero" by pulling the probe
above the liquid mirror and reading the output signal.
10.2.Non periodic inspections
If the probe has been subjected to mechanical damage, pressure overload, hydraulic impulses,
electrical surges, deposits, crystallization of the medium, etching of the diaphragm, or if the probe is
found to be working incorrectly, the device should be inspected. Check the condition of the diaphragm,
clean it, check the electrical functionality and processing characteristics.
If the signal is missing in the transmission line or its value is incorrect, check the power
supply line, the state of connections on terminal strips, connections, etc. Check the correct
value of the supply voltage and the resistance of the load.
10.3.Cleaning/Washing
To remove impurities from the external surfaces of the probe wipe it with a cloth dampened in water.
10.4.Diaphragm cleaning
The only possible method of cleaning the probe diaphragms is to dissolve the sludge produced.
Do not remove deposits and impurities from the probe diaphragms, which are formed
during operation, mechanically using tools, since the diaphragms and the probes can be
damaged.
10.5.Spare parts
Parts of the probe that may be worn or damaged and must be replaced: cable and gland seals. The
cable and seals can only be replaced by the manufacturer.
10.6.Repair
Faulty or non-operational probe shall be provided to the manufacturer or an authorized representative.
10.7.Return
In the following cases the, probe should be returned directly to the manufacturer:
-need for repair;
-need for factory calibration or „zero” calibration;
-replacement of improperly selected/shipped probe.

EN.IO.SGE.25.SMART
18 Revision 01.A.001/2021.09
11. SCRAPING, 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 manufacturer.
12. HISTORY OF REVISION
No.
Revision
Changing description
-
E5/01.2020
Updating electrical parameters.
1
E6/05.2020
Editorial changes
2
01.A.001/2021.09
New version of the document. Prepared by DBFD.

EN.IO.SGE.25.SMART
EN.IX.SGE.25.SMART
Revision 01.A.001/2021.09 19
Explosion-proof Device Manual EN.IX.SGE.25.SMART
SMART LEVEL PROBES type:
SGE–25.Smart, SGE–25S.Smart, SGE–25C.Smart
INTRINSICALLY SAFE VERSION
1. Introduction
Explosion-proof Device Manual EN.IX.SGE.25.SMART only applies to smart level probes:
SGE–25.Smart, SGE–25S.Smart, SGE–25C.Smart in intrinsically safe version with marking as a point
2 on the nameplate and the Ex version in the Product Certificate. When installing and using probes in
Ex version, User’s Manual EN.IO.SGE.25.SMART and Explosion-proof Device Manual
EN.IX.SGE.25.SMART must be used.
2. Using probes in hazardous area
The probes are produced in accordance with the requirements of the following standards:
EN IEC 60079-0:2018-03+A11:2014-03; EN 50303:2004; EN 60079-11:2012.
The probes may operate in areas where there is a risk of explosion , in accordance with the rating of
the explosion protection design:
II 1G Ex ia IIC T4/T5/T6 Ga
II 1G Ex ia IIB T4/T5/T6 Ga (For probe with cable in Teflon shielding
or cable with additional Teflon shield)
I M1 Ex ia I Ma
KDB 11ATEX 140X
3. Permissible input parameters (based on data from certificate
KDB 11ATEX140X)
-The probes should be powered from co-operating power supply and measuring
equipment with relevant intrinsic-safety certificates, whose parameters for output to the
danger zone should not exceed the permissible power supply parameters for the
probes given in points a) and b).
-Probes in "SA version" should be powered from devices with galvanically separated
power supply.
-The probe is an intrinsically safe device with protection level "ia" when the supply circuit
has protection level "ia" or an intrinsically safe device with protection level "ib" when the
supply circuit has protection level "ib".
a) Permissible input parameters for power supply with linear characteristic:
Ui = 30 V DC; Ii = 0,1 A
b) Permissible input parameters for power supply with trapezoidal and rectangular characteristic:
Ui = 24 V DC; Ii = 0,1 A
Input capacitance and inductance: Ci = 11 nF*; Li = 0,611 mH*
*) Consider the cable capacitance and inductance, which for a permanently connected cable are:
Ck= 0.2 nF/m i Lk=1 µH/m.
Input capacity Cw and inductance Lw taking into account the parameters of a permanently connected
cable is: Cw = Ci + a x Ck = 11nF + a x 0.2 nF/m; Lw= Li + a x Lk = 0,61 mH + a x 1 µH/m
where: - a - length of the wire permanently installed in the probe in metres.

EN.IO.SGE.25.SMART
EN.IX.SGE.25.SMART
20 Revision 01.A.001/2021.09
“Pi”for all types of power supply: see table Z1 below.
Table Z1. Temperature class dependence on ambient temperature Ta and total amount of input power Pi.
Pi [W]
Ta [ºC]
Temperature class
0,75
50
T6
70
T5
80
T4, group I
1,2
40
T6
65
T5
80
T4, group I
Ta- ambient temperature (measured medium)
4. Connection of probes in Ex version
Figure 1.Ex. Connection for SGE-25.Smart, SGE-25S.Smart, SGE-25C.Smart probes in Ex version.
Connections of the probe and devices in the probe measuring loop must be made in
accordance with intrinsic safety and explosion protection standards and conditions of use
in hazardous areas.
Failure to follow these rules can lead to an explosion and danger to people.
No repairs or other interference with the electrical system of the probe are allowed.
Damage assessment and possible repair can be done only by the manufacturer or a unit
authorized by him.
5. Special conditions for safe use
Probes in the surge arrester version that are labelled as "SA version", do not meet the insulation test
(500 V rms) required by EN 60079-11:2012. This must be taken into account when installing the device.