Aplisens SGE-25 User manual

USER’S MANUAL
HYDROSTATIC LEVEL PROBES
SGE-25, SGE-25/Hastelloy,
SGE-25S, SGE-25C, SGE-16
EN.IO.SGE
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 probes and provides quick access to the following documentation on the
manufacturer’s website: user’s manual, declarations of conformity and copies of certificates.
SGE-25
ID: 0039 0001 0000 0000 0000 0000 0001 20
https://www.aplisens.pl/ID/003900010000000000000000000120/
SGE-25 (Exi)
ID: 0039 0002 0000 0000 0000 0001 0001 37
https://www.aplisens.pl/ID/003900020000000000000001000137/
SGE-25/Hastelloy
ID: 0039 0001 0000 0001 0000 0000 0001 28
https://www.aplisens.pl/ID/003900010000000100000000000128/
SGE-25S
ID: 0040 0001 0000 0000 0000 0000 0001 17
https://www.aplisens.pl/ID/004000010000000000000000000117/

SGE-25S (Exi)
ID: 0040 0002 0000 0000 0000 0001 0001 34
https://www.aplisens.pl/ID/004000020000000000000001000134/
SGE-25C
ID: 0041 0001 0000 0000 0000 0000 0001 14
https://www.aplisens.pl/ID/004100010000000000000000000114/
SGE-25C (Exi)
ID: 0041 0002 0000 0000 0000 0001 0001 31
https://www.aplisens.pl/ID/004100020000000000000001000131/
SGE-16
ID: 0046 0001 0000 0000 0000 0000 0001 96
https://www.aplisens.pl/ID/004600010000000000000000000196/

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 USED
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 fol-
lowing 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
Revision 01.A.001/2021.09 5
TABLE OF CONTENTS
1. INTRODUCTION ......................................................................................... 6
1.1. Purpose of the document.......................................................................................................6
2. SAFETY ...................................................................................................... 6
3. TRANSPORT AND STORAGE ................................................................... 7
3.1. Delivery check .......................................................................................................................7
3.2. Transport...............................................................................................................................7
3.3. Storage and use ....................................................................................................................7
4. GUARANTEE.............................................................................................. 7
5. IDENTIFICATION........................................................................................ 8
5.1. Manufacturer address............................................................................................................8
5.2. Probe Identification................................................................................................................8
5.3. CE mark, declaration of conformity........................................................................................8
6. INSTALLATION .......................................................................................... 9
6.1. General recommendation ......................................................................................................9
7. ELECTRICAL CONNECTION ................................................................... 10
7.1. Cable connection.................................................................................................................10
7.2. Power supply.......................................................................................................................11
7.2.1. Power supply voltage...................................................................................................11
7.2.2. Resistance load in supply line......................................................................................11
7.2.3. Shielding......................................................................................................................12
7.3. Overvoltage protection.........................................................................................................12
7.4. Final Inspection of cabling ...................................................................................................12
8. MAINTENANCE ........................................................................................ 13
8.1. Periodic inspections.............................................................................................................13
8.1.1. „Zero” check.................................................................................................................13
8.2. Non-periodic inspections......................................................................................................13
8.3. Cleaning/washing ................................................................................................................13
8.3.1. Diaphragm cleaning .....................................................................................................13
8.4. Spare parts..........................................................................................................................13
8.5. Repairs................................................................................................................................13
8.6. Returns................................................................................................................................13
9. SCRAPPING, DISPOSAL ......................................................................... 14
10.HISTORY OF REVISIONS......................................................................... 14
Explosion-proof Device Manual EN.IX.SGE ................................................ 15
LIST OF DRAWINGS
Figure 1. Mounting brackets for probes...............................................................................................9
Figure 2. Probes diaphragm cover for SGE-25C and SGE-25S..........................................................9
Figure 3.Electrical connection of the probe in the standard version. ................................................10
Figure 4. Probe electrical connection in three-wire version, voltage output.......................................10
LIST OF TABLES
Table 1. Symbols appearing on the probe’s nameplate.......................................................................8
Table 2. Permissible power supply voltage. ......................................................................................11

EN.IO.SGE
6 Revision 01.A.001/2021.09
1. INTRODUCTION
1.1. Purpose of the document
The subject of manual are hydrostatic level probes: SGE-25, SGE-25/Hastelloy, SGE-25S,
SGE-25C, SGE-16, hereinafter referred to as probes in the manual. The manual applies to
the following versions: standard, intrinsically safe Exi (not applicable SGE-16).
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.
Data on the hydrostatic level probes SGE-25, SGE-25S and SGE-25C in intrinsically
safe version according to IECEx and ATEX are included in the Explosion-proof De-
vice Manual marked as EN.IX.SGE .
Probes: SGE–25, SGE–25S, SGE–25C made for marine applications, they meet the requirements
of DNV GL for ships, ships and drilling platforms and are certified in accordance with
the requirements of No. 2.4 of April 2006. in the following locations:
−temperature class C;
−humidity class B;
−vibration class B;
−EMC class B;
−housing class D.
Hydrostatic level probes: SGE–25, SGE–25S, SGE–25C made for marine applications, they meet
the requirements of Veritas (BV) for ships, fast and light vessels in accordance with the NR320
requirements for HBV products.
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 in-
structions 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 the manufacturer to ensure probe safety may 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 probe electronic system are permitted. Assessment of
damages and possible repair may only be performed by themanufacturer or authorized
representative;
−do not use instruments if damaged. In case of malfunction, the device must be put out
of operation.
It is forbidden to use devices in hazardous areas without appropriate permits.

EN.IO.SGE
Revision 01.A.001/2021.09 7
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 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 and use
Probes shall bestored in a factorypackaging, in aroom 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 cable kinks at the point where it exits the gland.
Permissible medium temperature range:
•SGE-25, SGE-25C, SGE-25S, SGE-25/Hastelloy
-25 … 40°C (-13 … 104°F)
•Special execution ETFE / PTFE
-25 … 75°C (-13 … 167°F
•SGE-16
0 … 40°C (32 … 104°F)
•Special execution ETFE / PTFE
0 … 75°C (32 … 167°F)
The medium must not be allowed to freeze in the immediate vicinity of the probe.
Operating temperature range and measured medium for probes in Ex version according
to “Explosion-proof Device Manual”marked as EN.IX.SGE .
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
8 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 1. Symbols appearing on the probe’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 issafe 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
//The lower part
of the nameplate//
Special versions

EN.IO.SGE
Revision 01.A.001/2021.09 9
6. INSTALLATION
6.1. General recommendation
The depth probes areinstalled in places where the liquid level is measured in wells, tanks, boreholes,
etc. The probe is immersed in the measured medium. A special cable extends above the medium
level and can be connected directly to the device cooperating with the probe or to the junction box.
The probe can be hung on the power cable, e.g. by using Aplisens SG cable hanger (item 1
in Fig. 1). In the event 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 cord using
the carrying eye (item 2 in Fig. 1 - does not apply to SGE-16 probes).
Figure 1. Mounting brackets for probes.
The probe with an additional Teflon shielding on the cable should be hung on a carrying cable or
on an internal cable (do not grab the Teflon shield). Hang the probe in Ex version with the
grounding cord only by the lifting eye on an additional supporting wire.
Immediately before placing the SGE-25S or SGE-25Cprobe in the measured medium,
remove the protective cover from the probe separator. During installation, protect the
probe against mechanical shocks.
Figure 2. Probes diaphragm cover for SGE-25C and SGE-25S.
A special cable extends above the medium level and can be connected directly to the device
cooperating with the probe or to the junction box. If the probe is to be in the current or in the
turbulence area, it should be installed in a protective pipe, e.g. made of PVC.

EN.IO.SGE
10 Revision 01.A.001/2021.09
7. ELECTRICAL CONNECTION
7.1. Cable connection
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 in accordance with the diagram in fig. 3 or 4. If the transmission line
is run in an open space, to remote rooms, it is recommended to install a junction box, e.g. type PP
by Aplisens S.A., in order to connect the probe cable with the rest of the transmission line. The box
should have an IP65 protection degree and at the same time be unsealed enough to ensure
"breathing" of the probe measuring element through the capillary which is part of the cable. Do not
allow the capillary outlet to become contaminated or water to enter the capillary. In the case of a
long transmission line, it is recommended to run the section from the end of the probe cable using a
"twisted pair", and it is also advantageous to equip the entrance to the cooperating devices with a
surge protection device, e.g. the UZ-2 system by Aplisens S.A..
Figure 3.Electrical connection of the probe in the standard version.
Figure 4.Probe electrical connection in three-wire version, voltage output.

EN.IO.SGE
Revision 01.A.001/2021.09 11
7.1.1. Depth probe with the internal PT temperature sensor.
Electrical connections and colours of the wires in the depth probe cable with an output signal
of 4...20 mA with resistance temperature sensors:
Depth probe:
−red: „+”
−black: „-”
−green: cable shield (if led out)
Resistance sensor (RTD):
−white
−white
Sensor in four-wire
connection
−brown
−brown
−white
−brown
−brown
Sensor in three-wire
connection
7.2. Power supply
7.2.1. 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 2. Permissible power supply voltage.
Probe type
Output signal
MIN. Supply
voltage
MAX Supply
voltage
SGE-25, SGE-25/Hastelloy,
SGE-25S, SGE-25C
4…20 mA
8 V DC
39 V DC
SGE-25, SGE-25S, SGE-25C
–Ex version
4…20 mA
9 V DC
28 V DC
SGE-25, SGE-25S, SGE-25C
0…10 V
13 V DC
30 V DC
SGE-25, SGE-25S, SGE-25C
- TR version*
4…20 mA
10,5 V DC
36 V DC
28 V DC**
SGE-16
4…20 mA
8 V DC
36 V DC
SGE-16
0…5 V
0…3,3 V
5 V DC
3,3 V DC
36 V DC
36 V DC
* TR version- made for measurements in fast-moving processes.
** TR Exi version
7.2.2. Resistance load in supply line
Power line resistance, power source resistance and additional series resistances increase
the voltage drops between the power source and the probe transducer. The maximum current under
normal operating conditions is 0.02 A. The maximum value of resistance in the supply circuit
(together with the supply line resistances) is given by the curves:

EN.IO.SGE
12 Revision 01.A.001/2021.09
where:
Usup - voltage at the terminals of the loop power supply 4…20 mA w [V].
Umin - minimum probe voltage ➔Table 2.
RLmax - maximum resistance of the supply line [Ω].
7.2.3. 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
The probes may be exposed to switching or other overvoltage, for example due to lightning. Surge
diodes are used to protect against overvoltage between the wires of the transmission line. In order
to protect against overvoltage between the transmission line and the earth or the housing (against
which the diodesconnected betweenthe lines of the line are not protected), standardand Exi probes.
In the SA version, they are equipped with additional protection in the form of overvoltage limiters.
Additionally, an external protective device can be used, e.g. the UZ-2 system by APLISENS S.A.
7.4. Final Inspection of cabling
After completing the electrical installation of the probe it is necessary to check the following:
−is the probe connected according to the information given in section ➔7.1;
−when using a junction box, that the glands are tightened;
−are the diaphragm covers (SGE-25C and SGE-25S) removed.

EN.IO.SGE
Revision 01.A.001/2021.09 13
8. MAINTENANCE
8.1. Periodic inspections
Periodic inspections should be carried out in accordance with the standards applicable to the user.
During the inspection it is necessary to check the condition of the head (absence of loosening and
leakage), separating diaphragms (tarnish, corrosion) and the electrical connection (checking
the condition of the cable), as well as the stability of the holder (if used). Check for signs of
mechanical damage in the form of impact marks or dents.
8.1.1. „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. In case of excessive deviation of
the indication in "zero", the probe should be returned to the manufacturer for correction of
the characteristics.
8.2. 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.
8.3. Cleaning/washing
To remove impurities from the external surfaces of the probe wipe it with a cloth dampened
in water.
8.3.1. 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.
8.4. 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.
8.5. Repairs
Faulty or non-operational probe shall be provided to the manufacturer or an authorized
representative.
8.6. Returns
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
14 Revision 01.A.001/2021.09
9. 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 manufacturer.
10. HISTORY OF REVISIONS
Revision
No.
Document revision
Description of changes
-
Edition E4/2019.04
Figure and description of SGE-25/Hastelloy probe was added.
1
01.A.001/2021.09
New version of the document. Prepared by DBFD.

EN.IO.SGE
EN.IX.SGE
Revision.01.A.001/2021.09 15
Explosion-proof Device Manual EN.IX.SGE
HYDROSTATIC LEVEL PROBES
TYPE: SGE–25, SGE–25S, SGE–25C
INTRINSICALLY SAFE VERSION
1. Introduction
Explosion-proof Device Manual EN.IX.SGE applies only to hydrostatic level probes SGE-25, SGE-25S,
SGE-25C in intrinsically safe version with marking as in point 2 on the nameplate and Ex in the Product
Certificate. When installing and using Ex probes, the User’s Manual EN.IO.SGE and Explosion-proof
Device Manual EN.IX.SGE should be used.
2. Using probes in hazardous area
The probes are produced in accordance with the requirements of the following standards:
EN 60079-0:2013-03/A11:2014-03; EN 60079-11:2012; EN 60079-26:2007;
EN 50303:2004.
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 Teflon sheathed cable)
I M1 Ex ia I Ma
KDB 09ATEX 007X
3. Permissible input parameters (based on data from the certificate KDB
09ATEX007X and validation documentation)
- The probes should be powered from co-operating power supply and measuring devices with
relevant intrinsic-safety certificates, whose parameters of outputs to the danger zone should
not exceed the acceptable power supply parameters for the probes given in points 3a) and 3b).
- Probes in "SA version" should be powered from devices with galvanically separated power
supply.
- Minimum probes power supply 9 V DC.
- 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) Acceptable input parameters for power supply with linear characteristics:
Ui = 28 V DC Ii = 0,1 A
b) Acceptable input parameters for power supply with trapezoidal and rectangular characteristics:
Ui = 28 V DC Ii = 0,08 A
c) Input capacity and inductance: Ci = 25 nF; Li = 0,4 mH
*) The capacitance and inductance of the cable must be taken into account, which for a permanently
connected wire are:
Ck = 0,2 nF/m i Lk = 1 µH/m.
The input capacitance Cw and inductance Lwtaking into account theparameters of the cable connected
permanently is:
Cw = Ci + a x Ck = 25 nF + a x 0,2 nF/m; Lw = Li + a x Lk = 400 µH + a x 1 µH/m
Where: - a - length of the cable permanently installed in the probe in metres.
„Pi” for all types of power supply: see table Z1.

EN.IO.SG
EN.IX.SGE
16 Revision.01.A.001/2021.09
Table Z1. Temperature class dependence on ambient temperature Ta and total amount of input power Pi.
Pi [W]
Ta [ºC]
Temperature class
0,7
50
T6
80
T5, T4, group I
1,2
40
T6
75
T5
80
T4, group I
Ta- ambient temperature (i.e. of measured medium).
4. Connection of 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.
Figure 1.Ex. Connection of Ex probes.
No repairs or other interference with the electrical system of the probe areallowed. Damage
assessment and possible repair can be done only by the manufacturer or a unit authorized
by him.
Connections of devices in the probe's measuring loop should be made in accordance with
intrinsic safety standards.
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. Thismust be taken into account when installing the device.