Aplisens LI-24L User manual

EXPLOSION-PROOF DEVICE MANUAL
RAIL-MOUNTED SMART TEMPERATURE TRANSMITTERS
LI-24L, LI-24L SAFETY
HEAD-MOUNTED SMART TEMPERATURE TRANSMITTER
LI-24G, LI-24G SAFETY
EN.IX.LI.24.L.G
May 2020
APLISENS S.A., 03-192 Warsaw, Morelowa 7 St
tel. [phone]; fax [phone]
www.aplisens.com, e-mail: [email protected]
Revision 01.A.001

Symbols used
Symbol
Description
Warning about the necessity follow strictly the information provided in the
documentation in order to ensure safety and full functionality of the device.
Information particularly useful for device installation and operation.
Information particularly useful for Ex device installation and operation.
Waste of electrical and electronic equipment disposal information.
BASIC REQUIREMENTS AND OPERATION SAFETY
The manufacturer shall not be liable for any damage resulting from incorrect
installation, failure to maintain the device in proper condition, or device use
other than intended.
Installation should be carried out by qualified staff having the required
authorization to install electrical and I&C equipment. The fitter is responsible for
performing the installation in accordance with this manual and with the
electromagnetic compatibility and safety regulations and standards applicable
to the type of installation.
If leakage in systems with I&C equipment occurs, pressurized medium poses a
threat to the personnel. All safety and protection requirements must be
observed during transmitter installation, operation and inspections.
If a malfunction occurs, the device should be removed and sent for repair to the
manufacturer or a facility authorized by the manufacturer.
In order to minimize the risk of malfunction and associated risks to staff, do not
install or use the device in particularly adverse conditions, where the following
hazards occur:
Possible mechanical impacts, excessive shocks and vibration;
Excessive temperature fluctuation;
Water condensation, dust, icing.
Explosion-proof installations should be made with special care and in accordance
with standards and regulations applicable to this type of installations.
Changes can be made in the manufacturing before the paper version of user documentation
is updated. Up-to-date user manuals are available on the manufacturer's website:
www.aplisens.com.

EN.IX.LI.24.L.G
Revision 01.A.001/2020.05 3
TABLE OF CONTENTS
1. INTRODUCTION.......................................................................................... 5
2. COMPLETE DELIVERY CHECKLIST ......................................................... 5
3. IDENTIFICATION MARKS........................................................................... 6
4. CONSTRUCTION OF THE TRANSMITTER ................................................ 7
5. ELECTROSTATIC HAZARDS..................................................................... 7
6. SPECIAL CONDITIONS OF USE ................................................................ 8
7. INTRINSICALLY-SAFE Exi TRANSMITTERS LI24G AND LI-24G SAFETY
8
7.1. Standards used for assessment..................................................................................8
7.2. Transmitter intrinsic safety designations .....................................................................8
7.3. Permissible input and output parameters of the intrinsic safety transmitters LI-24G
and LI-24G Safety .......................................................................................................9
8. INTRINSICALLY-SAFE Exi TRANSMITTERS LI24L AND LI-24L SAFETY9
8.1. Standards used for assessment..................................................................................9
8.2. Transmitter intrinsic safety designations .....................................................................9
8.3. Permissible input and output parameters of the intrinsic safety transmitters LI-24L
and LI-24L Safety......................................................................................................10
9.1. Minimum and maximum supply voltage ....................................................................10
9.2. Load resistance......................................................................................................... 10
10.1. Linear power supply example.................................................................................... 11
10.2. Trapezoidal power supply example...........................................................................11
10.3. Rectangular power supply example ..........................................................................11
11. CONNECTING Exi TRANSMITTERS ........................................................ 12
12.ADDITIONAL INFORMATION ................................................................... 13
12.1. Additional information................................................................................................ 13
12.2. History of revisions.................................................................................................... 13
LIST OF DRAWINGS
Figure 1. Sample transmitter nameplates LI-24G ...................................................................6
Figure 2. Sample transmitter nameplate LI-24L Safety........................................................... 7
Figure 3. Principle of power supply from a linear source....................................................... 11
Figure 4. Principle of power supply from a trapezoidal source..............................................11
Figure 5. Connecting Exi transmitters ...................................................................................12
LIST OF TABLES
Table 1. Permissible input parameters in the power supply circuit (terminals "+", "-") for
LI-24G and LI-24G Safety transmitters in Exi version..............................................................9
Table 2. Permissible output parameters in the temperature sensor circuit (terminals "1", "2",
"3", "4", "5") for the LI-24G and LI-24G Safety transmitters in Exi version ...............................9
Table 3. Permissible input parameters in the power supply circuit (terminals "+", "-") for
LI-24L and LI-24L Safety transmitters in Exi version ............................................................. 10

EN.IX.LI.24.L.G
4Revision 01.A.001/2020.05
Table 4. Permissible output parameters in the temperature sensor circuit (terminals "1", "2",
"3", "4", "5") for the LI-24L and LI-24L Safety transmitters in Exi version...............................10
Table 5. Transmitter supply voltages in Exi version...............................................................10

EN.IX.LI.24.L.G
Revision 01.A.001/2020.05 5
1. INTRODUCTION
This manual is only applicable to the LI-24L, LI-24L Safety, LI-24G i LI-24G Safety series
transmitters in Exi (intrinsically safe). The transmitters are identified with model ID on
nameplates and also as specified in section 3. Ex information are included in the “Product
Certificate”. Model ID indicates type and version of transmitter.
The manual contains most important information on intrinsically safe transmitters compliant
with ATEX directive and IECEx requirements. If intrinsically safe transmitters are installed,
refer to this manual and also:
- EN.IO.LI.24.L.G.SFT manual for LI-24L Safety, LI-24G Safety series transmitters,
- EN.IO.LI.24.L.G manual for LI-24L, LI-24G series transmitters.
SAFETY
Read this manual carefully before installing, commissioning and operating the
transmitter.
Installation and maintenance should be carried out by qualified staff having the
required authorization to install electrical and measuring devices.
The transmitter should used as intended within permissible parameters.
Power source must be disconnected before installing or removing the transmitter.
No repairs or alterations to the transducer electronic system are permitted. Only
the manufacturer or a facility authorized by the manufacturer may assess
damages and repair the device (if possible).
Do not use damaged instruments. In case of failure, the device must be
disconnected.
If the equipment is used in Ex zones, the technical requirements specified in this
manual and applicable local (national) regulations must be followed.
2. COMPLETE DELIVERY CHECKLIST
The user receives the following with the transmitter:
a) Product Certificate, which also constitutes a warranty card.
b) Declaration of Conformity.
c) Certificate copy (on request).
d) EN.IX.LI.24.L.G explosion-proof device manual.
e) EN.IO.LI.24.L.G.SFT user manual or EN.IO.LI.24.L.G user manual.
Items b), c), d), e) are available at www.aplisens.com.

EN.IX.LI.24.L.G
6Revision 01.A.001/2020.05
3. IDENTIFICATION MARKS.
Each transmitters are equipped with a nameplate showing the following data:
1. Logo or name of the manufacturer;
2. Transmitter identification;
3. CE mark;
4. QR product code;
5. Transmitter ID number;
6. Types of measuring inputs;
7. Supply voltage value;
8. Permissible ambient temperature range;
9. Output signal;
10.“Caution” symbol. See the relevant information in the user’s manual;
11.Transmitter serial number;
12.Year of production;
13.Number of the notified body supervising Ex products;
14.Identification of the explosion-proof version type, certificate identification see point 7.2
for LI-24G, LI-24G Safety and point 8.2 for LI-24L, LI-24L Safety;
15.Intrinsic safety parameters, i.e.: Ui, Ii, Pi, Li, Ci, Uo, Io, Po, Co, Lo.
Figure 1. Sample transmitter nameplates LI-24G

EN.IX.LI.24.L.G
Revision 01.A.001/2020.05 7
Figure 2. Sample transmitter nameplate LI-24L Safety
4. CONSTRUCTION OF THE TRANSMITTER
The LI-24L, LI-24L Safety, LI-24G, LI-24G Safety, temperature transmitter consist of a plastic
housing and an electronic unit located inside that converts the signal from the measurement
sensor to a unified output signal. LI-24L, LI-24L Safety, temperature transmitters are
designed for direct mounting on DIN 35 rail.
The LI-24G and LI-24G Safety temperature transducers can be installed in B, DA, NA, DAN,
DANW casings from Aplisens or other casings.
5. ELECTROSTATIC HAZARDS
Transmitter housing and rating plate are made of plastic. Due to the possibility of electrifying
the plastic housing and the occurrence of electrostatic discharges, it is recommended to
mount the transmitter in a safe area and connect it with a cable to a sensor located in an
explosion hazard zone. If there is a need to install the transmitter in a hazardous area, it
should be protected against the possibility of electrifying the housing, e.g. by placing it in a
metal housing or in a metal cabinet. Transmitters in hazardous areas should be installed in a
place where there is no possibility of electrostatic charging.
When performing connection and maintenance activities in the hazardous area, the
possibility of electrostatic discharge should be eliminated. Do not wipe the transmitter dry.

EN.IX.LI.24.L.G
8Revision 01.A.001/2020.05
6. SPECIAL CONDITIONS OF USE
a) The maximum temperature of the external heating source cannot heat the transmitter
above the maximum ambient temperature declared by manufacturer.
b) Temperature transmitters in potentially explosive areas should be installed in
enclosures designed for operation in these areas and provide a minimum degree of
protection: IP54 for Group I devices, IP20 for Group II devices and IP5X for Group III
devices.
c) In hazardous zones the transmitters should be installed in a way that prevents
electrostatic charging, in accordance with the instructions.
7. INTRINSICALLY-SAFE Exi TRANSMITTERS LI24G AND
LI-24G SAFETY
7.1. Standards used for assessment
The transmitters are manufactured in compliance with the following standards:
EN IEC 60079-0:2018; (IEC 60079-0:2017 ed. 7.0),
EN 60079-11:2012; (IEC 60079-11:2011 ed. 6.0.),
EN 50303:2000.
7.2. Transmitter intrinsic safety designations
The following ATEX and IECEx markings apply only to intrinsically safe transmitters marked
with the type and model ID:
LI-24G ID 0025 0010 ...,
LI-24G Safety ID 0004 0006 0003 ...,
ATEX:
I M1 Ex ia I Ma
II 1G Ex ia IIC T5/T6 Ga
II 1D Ex ia IIIC T105 ºC Da
KDB 20 ATEX 0005X
IECEx:
Ex ia I Ma
Ex ia IIC T5/T6 Ga
Ex ia IIIC T105 ºC Da
IECEx KDB 20.0001X
Supply power to transmitters from supply and measurement devices with applicable
intrinsic safety certificates whose parameters of outputs to a hazard zone should not
exceed the permissible transmitter power supply parameters specified below.

EN.IX.LI.24.L.G
Revision 01.A.001/2020.05 9
7.3. Permissible input and output parameters of the intrinsic safety
transmitters LI-24G and LI-24G Safety
Table 1. Permissible input parameters in the power supply circuit (terminals "+", "-") for
LI-24G and LI-24G Safety transmitters in Exi version
Linear power
supply
Rectangular power
supply
Trapezoidal power
supply
Ui=30V
Ui=24V
Ui=24V, UQ=48V
Ii=0,1A
Ii=0,025A
Ii=0,05A
Pi=0,75W
Pi=0,6W
Pi=0,6W
Ci=2,5nF
Ci=2,5nF
Ci=2,5nF
Li=910µH
Li=910µH
Li=910µH
-40⁰C≤Ta≤+50⁰C (T6)
-40⁰C≤Ta≤+70⁰C (T5)
-40⁰C≤Ta≤+50⁰C (T6)
-40⁰C≤Ta≤+70⁰C (T5)
-40⁰C≤Ta≤+50⁰C (T6)
-40⁰C≤Ta≤+70⁰C (T5)
Table 2. Permissible output parameters in the temperature sensor circuit (terminals "1", "2",
"3", "4", "5") for the LI-24G and LI-24G Safety transmitters in Exi version
Uo
Io
Po
Co
Lo
6 V
3.3 mA
19.8 mW
2.5 µF
2 mH
8. INTRINSICALLY-SAFE Exi TRANSMITTERS LI24L AND
LI-24L SAFETY
8.1. Standards used for assessment
The transmitters are manufactured in compliance with the following standards:
EN IEC 60079-0:2018; (IEC 60079-0:2017 ed. 7.0),
EN 60079-11:2012; (IEC 60079-11:2011 ed. 6.0.),
EN 50303:2000.
8.2. Transmitter intrinsic safety designations
The following ATEX and IECEx markings apply only to intrinsically safe transmitters marked
with the type and model ID:
LI-24L ID 0024 0009 ...,
LI-24L Safety ID 0003 0005 0003 ...,
ATEX:
I M1 Ex ia I Ma
II 1G Ex ia IIC T4/T5 Ga
KDB 20 ATEX 0005X
IECEx:
Ex ia I Ma
Ex ia IIC T4/T5 Ga
IECEx KDB 20.0001X

EN.IX.LI.24.L.G
10 Revision 01.A.001/2020.05
Supply power to transmitters from supply and measurement devices with applicable
intrinsic safety certificates whose parameters of outputs to a hazard zone should not
exceed the permissible transmitter power supply parameters specified below.
8.3. Permissible input and output parameters of the intrinsic safety
transmitters LI-24L and LI-24L Safety
Table 3. Permissible input parameters in the power supply circuit (terminals "+", "-") for
LI-24L and LI-24L Safety transmitters in Exi version
Linear power
supply
Rectangular power supply
Trapezoidal power
supply
Ui=30V
Ui=24V
Ui=24V
Ui=24V, UQ=48V
Ii=0,1A
Ii=0,025A
Ii=0,05A
Ii=0,05A
Pi=0,75W
Pi=0,6W
Pi=1,2W
Pi=0,6W
Ci=2,5nF
Ci=2,5nF
Ci=2,5nF
Ci=2,5nF
Li=0µH
Li=0µH
Li=0µH
Li=0µH
-40⁰C≤Ta≤+55⁰C (T5)
-40⁰C≤Ta≤+85⁰C (T4)
-40⁰C≤Ta≤+55⁰C (T5)
-40⁰C≤Ta≤+85⁰C (T4)
-40⁰C≤Ta≤+85⁰C (T4)
-40⁰C≤Ta≤+55⁰C (T5)
-40⁰C≤Ta≤+85⁰C (T4)
Table 4. Permissible output parameters in the temperature sensor circuit (terminals "1", "2",
"3", "4", "5") for the LI-24L and LI-24L Safety transmitters in Exi version
Uo
Io
Po
Co
Lo
6 V
3.3 mA
19.8 mW
2.5 µF
2 mH
9. TRANSMITTER POWER SUPPLY PARAMETERS
9.1. Minimum and maximum supply voltage
Table 5. Transmitter supply voltages in Exi version
Minimum supply voltage
Maximum supply voltage
10 V
According to table 1 for LI-24G, LI-24G Safety
According to table 3 for LI-24L, LI-24L Safety
9.2. Load resistance
a) For a linear power supply from a barrier
󰇟󰇠    󰇛 󰇜󰇜
󰇜
b) For power supply from a trapezoidal or rectangular source.
󰇟󰇠   
󰇜
Rw –barrier resistance;
Uapp –minimum voltage of the barrier used
*) for transmitters in Safety version, the current value should be taken 0.02082A

EN.IX.LI.24.L.G
Revision 01.A.001/2020.05 11
10. EXAMPLE OF POWER SUPPLY FOR TRANSMITTERS IN
EXPLOSION HAZARD AREAS.
10.1. Linear power supply example
For example, linear power supply is provided by a typical barrier with the following
parameters
Uo = 28V; Io = 0.1A; Po = 0.7W; Rw = 280.
Figure 3. Principle of power supply from a linear source.
10.2. Trapezoidal power supply example
Uo = 24V; Io = 50mA; Po = 0.7W
An example of trapezoidal power supply is shown in Figure 4.
Figure 4. Principle of power supply from a trapezoidal source.
If 
, UQ, I0, P0have the following relations:
 

If  UQ, I0, P0have the following relations:
󰇛 󰇜

Resistance Rw:


10.3. Rectangular power supply example
Uo = 24 V Io = 25 mA Po = 0.6 W
Uo = 24 V Io = 50 mA Po = 1.2 W
transmitter
transmitter
Io
Ui
Uo
Q
I
Rw
UQ
Ii

EN.IX.LI.24.L.G
12 Revision 01.A.001/2020.05
Rectangular power supply means that the voltage of an intrinsically safe power adapter
does not change until the current limiter is activated.
The level of protection of rectangular power supply adapters is usually “ib”. A transmitter
supplied from such power adapter is usually an “ib” intrinsically safe device.
An example of power supply in practice:
A stabilized power adapter with Uo = 24 V, “ib” protection level and current limited to
Io = 25 mA.
11. CONNECTING Exi TRANSMITTERS
Transmitter and equipment in the transmitter measurement loop must be connected
in compliance with intrinsic safety and explosion proofing standards and conditions
for application in risk zones. If intrinsic safety rules are not followed, explosion can
occur and people can be exposed to danger.
Figure 5. Connecting Exi transmitters
If we want to communicate with the transducer (via the HART protocol) by connecting
the communicator (as in Figure 5) we must make sure that the resistance Ro seen
from the transducer terminals towards the power source is in the range of 240 [Ω]
≤Ro≤1100 [Ω] . If Ro <240 [Ω] does not communicate, then increase Ro to the
minimum value of 240 [Ω]. The Ro resistor is only used during Hart communication.
For standard 4-20mA transducer operation, the Ro resistor is not required.

EN.IX.LI.24.L.G
Revision 01.A.001/2020.05 13
The electrical system for connecting transmitters should meet installation
requirements of applicable standards.
No repairs or alterations to the transmitter electrical system are permitted. Only the
manufacturer or a facility authorized by the manufacturer may assess damages and
repair the device (if possible).
To minimize the risk of electrostatic discharge in potentially explosive areas, make
connections to the transmitter terminals outside these areas.
Due to the type of material used, the user is obliged to ensure the installation of the
transmitter in accordance with the specific conditions of use.
Use a cable with or without shielding, unreinforced, compact and round cross-
section, in an elastomer sheath, e.g. polyvinite, non-absorbent, e.g. YKSLY 2 * 1,
YnTKSYekw 1 * 2 * 1, LIYCY 2 * 1. Cables should be protected against damage by
routing them e.g. in trays, conduits, cable ladders, permanent fasteners etc.
General principles of connecting and operating the transducer in Exi version should
comply with the principles and standards for devices with intrinsically safe
construction:
PN-EN60079-14 - Explosive atmospheres - Part 14: Design, selection and assembly
of electrical installations.
PN-EN60079-17 - Explosive atmospheres - Part 17: Inspection and maintenance of
electrical installations.
12. ADDITIONAL INFORMATION
12.1. Additional information
The manufacturer reserves the right to introduce structural and technological changes to the
device, which does not deteriorate its performance.
12.2. History of revisions
Revision
No
Document revision
Description of changes
0
01.A.001/2020.05
Initial document version. Prepared by DCF.