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Summary of Contents for IFM LMT0 A Series
- Page 1 Operating instructions Binary level sensor LMT0xA...
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Page 2: Table Of Contents
LMT0xA Binary level sensor Contents Preliminary note ............. . Symbols used. -
Page 3: Preliminary Note
Binary level sensor LMT0xA 1 Preliminary note You will find instructions, technical data, approvals and further information using the QR code on the unit / packaging or at www.ifm.com. 1.1 Symbols used Requirement Instructions Reaction, result [...] Designation of keys, buttons or indications... -
Page 4: Safety Instructions
LMT0xA Binary level sensor 2 Safety instructions • The unit described is a subcomponent for integration into a system. – The system architect is responsible for the safety of the system. – The system architect undertakes to perform a risk assessment and to create documentation in accordance with legal and normative requirements to be provided to the operator and user of the system. -
Page 5: Intended Use
Binary level sensor LMT0xA 3 Intended use The unit monitors the level of liquid, viscous and powdery media in tanks and pipes. It can be used for limit detection and run-dry protection. The separate setting of two switching thresholds enables the detection of two different media (can be used, for example, for phase separation or differentiation of media). -
Page 6: Function
• Streamlined sensor geometry, no blockage of the pipe when unit types with short probe are used, no pressure loss. • Orientation-independent installation possible. • Defined position of the cable entry for angled sockets when ifm welding adapters are used. -
Page 7: Installation
When process connections from other manufacturers are used: u Ensure mechanical compatibility. w As a rule, ifm does not assume any responsibility for ingress resistance, hygiene and function, in particular with non-existing compatibility and incorrect installation. When installed in restricted spaces (e.g. pipes, tank corners, structures) -
Page 8: Application Examples
LMT0xA Binary level sensor 5.2 Application examples 5.2.1 Unit types with short probe Fig. 3: Installation on a tank Fig. 4: Installation on a pipe 1: Installation position only suited to some extent • Fig. installation on a tank: Possible installation positions in a tank (e.g. for point level detection or as run-dry protection). -
Page 9: Notes On The Use According To Ehedg
Binary level sensor LMT0xA The variable clamp fitting (accessory) allows variable installation of the unit types LMT03A and LMT04A in height/installation depth. This enables, for example, a high-precision adjustment of the response level. Moreover, these types can be uncoupled thermally from the process by means of the variable clamp fitting (recessed installation of the sensor electronics). -
Page 10: Installation Lmt01A (Hygiene-Compliant)
The PEEK sealing ring is not supplied with the unit. It can be ordered separately (E43323). The PEEK sealing ring has been rated for ifm adapters with end stop towards the medium. If the sealing between the housing and the process connection ((1) in fig. LMT seal, metal-to- metal) is to withstand the system pressure, no end stop for the flush mount sealing area exists. - Page 11 Binary level sensor LMT0xA Green flat seal Metal sealing cone Fig. 7: LMT seal, metal-to-metal u Insert the green flat seal (1) and/or check its position. u If required: Lightly grease the thread using a suitable lubricating paste which has been approved for this application.
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Page 12: Electrical Connection
LMT0xA Binary level sensor 6 Electrical connection The device must be connected by a qualified electrician. The national and international regulations for the installation of electrical equipment must be adhered to. Supply voltage SELV, PELV according to the technical data sheet. u Disconnect power. -
Page 13: Parameter Setting
The IODDs necessary for the configuration of the unit, detailed information about process data structure, diagnostic information, parameter addresses and the necessary information about the required IO-Link hardware and software can be found at www.ifm.com. 7.2 Parameter setting using PC and USB IO-Link master u Preparing the PC, software and master. -
Page 14: Parameter Setting During Operation
Check if the unit has accepted the parameter settings. If necessary, read sensor again. u Check whether the unit operates correctly. For further information, please refer to the IODD description (www.ifm.com) or to the context-specific parameter descriptions of the used parameter setting software. -
Page 15: Unit Locking / Data Storage
Binary level sensor LMT0xA 7.7 Unit locking / data storage The IO-Link master stores all parameters of the connected sensor (data storage) if configured in the master. When a sensor is replaced by a sensor of the same type, the parameters of the old sensor are automatically written to the new sensor if configured in the master and if the sensor allows this. -
Page 16: Fault During The Teach Operation
LMT0xA Binary level sensor 7.9.3 Fault during the teach operation u Faulty teach operation w Teach operation stopped w LEDs are flashing green/yellow with 8 Hz. w The unit returns to the operating mode with unchanged settings. Possible faults: • Time error (teach time too long / too short). •... -
Page 17: Operation
Binary level sensor LMT0xA 8 Operation After power-on the device is in the operating mode. It carries out its measurement and evaluation functions and generates output signals according to the set parameters. u Check whether the unit operates correctly. 8.1 Switching states and LED indicators The table shows the factory settings. -
Page 18: Maintenance, Repair And Disposal
LMT0xA Binary level sensor 9 Maintenance, repair and disposal u Check sensor tip at regular intervals for deposits and damage. Clean the unit if badly soiled. In case of damage replace the unit. u After removal and before reinstallation of the unit carefully clean the probe neck and the installation slot –... -
Page 19: Factory Setting
Binary level sensor LMT0xA 10 Factory setting LMT0xA User settings FOU1 FOU2 dS1*) dS2*) Percentage values refer to the process value (Ò Parameter setting). *) Parameters not available for LMT01A.
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