Aplisens LI-24L Safety User Manual
Temperature transmitters
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Summary of Contents for Aplisens LI-24L Safety
- Page 1 EN.IO.LI.24.L.G.SFT Revision 02.A.004 AUGUST 2021 USER’S MANUAL TEMPERATURE TRANSMITTERS LI-24L Safety LI-24G Safety APLISENS S.A., 03-192 Warsaw, Morelowa 7 St, tel. +48 22 814 07 77; fax +48 22 814 07 78 www.aplisens.com, e-mail: export@aplisens.com...
- Page 2 The QR code or ID number identifies the transmitter and provides quick access to the following docu- mentation on the manufacturer’s website: user’s manual, SIL safety manual, explosion-proof device user manual, declarations of conformity and copies of certificates. LI-24L Safety ID:0003 0005 0003 0000 0000 0000 0001 26 https://aplisens.pl/ID/000300050003000000000000000126/00000000...
- Page 3 - 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.
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Page 4: Table Of Contents
6. INSTALLATION ..................11 6.1. General recommendations ....................11 6.1.1. Installation of rail-mounted transmitter LI-24L Safety on a DIN rail ....... 11 6.1.2. Installation of head-mounted transmitter LI-24G Safety in the housing ......12 7. ELECTRICAL CONNECTION ..............14 7.1. - Page 5 Figure 3. Examples of LI-24G Safety transmitter nameplates in standard and Exi version ....10 Figure 4. Examples of LI-24L Safety transmitter nameplates in standard and Exi version ....10 Figure 5. LI-24L Safety transmitter installation on a DIN rail .............. 11 Figure 6.
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Page 6: Introduction
1.1. Purpose of the document The subject of manual are rail-mounted smart temperature transmitters LI-24L Safety and head- mounted smart temperature transmitters LI-24G Safety, hereinafter referred jointly to as LI-24L(G) Safety. The manual applies to the following versions: standard and intrinsically safe Exi. -
Page 7: Transmitter Set Range
EN.IO.LI.24.L.G.SFT 1.4. Transmitter set range The figure below shows the transmitter LRV/URV set range, limits related to the LRL/URL permissible set range, LPL/UPL digital processing range of the A/D measuring transmitter. As standard, current values of 4 mA / 20 mA 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 cur- rents. -
Page 8: Safety
EN.IO.LI.24.L.G.SFT 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 re- quired authorizations to install electrical and measuring devices. -
Page 9: Transport And Storage
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. -
Page 10: Identification
Depending on the version of the transmitter, the nameplates may differ in the amount of information and parameters. Figure 3. Examples of LI-24G Safety transmitter nameplates in standard and Exi version Figure 4. Examples of LI-24L Safety transmitter nameplates in standard and Exi version 1. Logo and name of the manufacturer. 2. Transmitter type. -
Page 11: Installation
DIN 35 rail. Insert the movable clip (2) of the LI-24L Safety transmitter housing (1) over the DIN rail (3). Then press the transmitter (1) towards the rail (3). Ensure that the movable clip (2) is clamped on the rail (3). To remove the transmitter, pull the movable clip (2) out with a flat-end screwdriver (put the screwdriver through the clip lug (2)) and slide the transmitter (1) off the rail (3). -
Page 12: Installation Of Head-Mounted Transmitter Li-24G Safety In The Housing
Screw the housing cover (1) together with the gasket (2) onto the housing (7). Screw in the protective tube of the measuring unit (8). Figure 6. Installation of the LI-24G Safety transmitter in an example enclosure manufactured by Aplisens Revision 02.A.004/2021.08... -
Page 13: Figure 7. Fastening Screw Lock Protection In The Li-24G Safety Transmitter
EN.IO.LI.24.L.G.SFT The head-mounted transmitter LI-24G Safety is equipped with fastening screw lock protection in the form of locks in the mounting holes. The lock is suitable for use with screw threads, and therefore the screws must be screwed into the transmitter housing. Pushing the fastening screws into the mounting holes instead of screwing them in may damage the screw lock protection. -
Page 14: Electrical Connection
(applies to LI-24G Safety in housing). Figure 8. Markings of LI-24L Safety transmitter terminals Figure 9. Markings of LI-24G Safety transmitter terminals... -
Page 15: Options For Connecting Sensors, Potentiometers And Voltage Sources To The Transmitter15
EN.IO.LI.24.L.G.SFT 7.1.1. Options for connecting sensors, potentiometers and voltage sources to the transmit- Figure 10. Methods of connecting sensors, potentiometers and voltage sources Revision 02.A.004/2021.08... -
Page 16: Connection Of Transmitters With The Option Of Using Local Hart Communication
It is mandatory to read EN.IX.LI.24.L.G Explosion-proof Device User Manual, containing important information related to the installation of transmitters in intrinsically safe ver- sion. The converter may also be operated using Aplisens Mobile Configurator installed on smartphones with Android system and connected using wireless communication. ®... -
Page 17: Transmitter Power Supply
7.2.2. Specifications of electrical switching terminals Electrical switching terminals are suitable for conductors with the cross-section area of: for LI-24L Safety: ≤ 2,5 mm for LI-24G Safety: ≤ 1,75 mm Possible cables to be used: unshielded when using the analogue signal only;... -
Page 18: Start-Up
4 – Alarm current area I_AL < 3,600 mA for internal diagnostic alarms. 5 – Alarm current area I_AL > 20,820 mA for alarms related to safe failures with external diagnostics. Temperature transmitters LI-24L(G) Safety manufactured by Aplisens meet the alarm re- quirements of Namur NE 89 and Namur NE 43. -
Page 19: Figure 14. Led Indicator On The Li-24L Safety Transmitter
The design of the transmitter allows detection of many dangerous failures. In addition to the diagnostics signalled with alarm current I_AL < 3.600 mA and the diagnostics being readable by via digital HART communication, the LI-24L Safety transmitter is equipped with a two-colour LED indicator which signals the operating status of the device. -
Page 20: Configuration Of The Operating Mode
EN.IO.LI.24.L.G.SFT 8.2. Configuration of the operating mode Before starting the work with the transmitter, the following parameters must be configured: basic unit of the transmitter process variable; measurement input type (voltage/resistance); measurement sensor processing characteristics (selection of sensor linearization characteris- tics);... -
Page 21: Metrological Parameters, Types Of Sensors, Measuring Ranges And Errors
EN.IO.LI.24.L.G.SFT 8.3. Metrological parameters, types of sensors, measuring ranges and errors User’s processing characteristics. Input impedance, thermocouple or voltage input: > 10 MΩ. Additional error due to supply voltage changes: ± 0,002 %/V. Temperature impact compensation: 50 points at operating temperature range, segmental with linear approximation between points. Output updates time (calculation cycle): 0.74 ÷... -
Page 22: Table 4. Metrological Parameters Of Thermocouples
EN.IO.LI.24.L.G.SFT Table 4. Metrological parameters of thermocouples Thermocouples Input – Thermocouples > 10 MΩ Input impedance 500 Ω (wires + thermocouple) Maximum wires resistance Cold junctions compensation internal sensor, external sensor Pt100, temperature constant of the cold junctions Processing Temperature Min. -
Page 23: Table 5. Types Of Measurements, Linearization And Mathematical Operations
EN.IO.LI.24.L.G.SFT Table 5. Types of measurements, linearization and mathematical operations Voltage measurements, TC type sensors. Voltage measurement range 0 … 100 mV or 0 … 1000 mV Linearization type / base range Sensor type and CJC configurations Linear/0 … 100 mV or 0 … 1000 mV 1 x TC (voltage measurement);... -
Page 24: Operation
The following devices may be used to communicate with the transmitter: Aplisens S.A. HART/USB or HART/RS232 converter; PC computers equipped with HART modem (e.g. HART/USB converter by Aplisens S.A.) with Windows7 or Windows10 operating system with installed Raport 2 or LI-24 Configurator soft- ware by Aplisens S.A.;... -
Page 25: Maintenance
EN.IO.LI.24.L.G.SFT MAINTENANCE 10.1. Periodic inspections Periodic inspections shall be carried out in accordance with applicable standards. During the inspection, check the condition of electrical terminal connections (reliability of the connections) and the stability of transmitter mounting. 10.2. Non-periodic inspections If the transmitter at the installation site has been exposed to mechanical damage, overvoltage or incor- rect operation of the transmitter is detected, the device shall be inspected. -
Page 26: Scrapping, Disposal
EN.IO.LI.24.L.G.SFT 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. HISTORY OF REVISIONS Revision Document revision Description of changes 01.A.001/2019.11 First version of the document. Prepared by DKD, KBF. Figure of the protective seal has been added.
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