Table of Contents
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Table of Contents
Related Manuals for IFM LT3023
Summarization of Contents
1 Preliminary note
1.1 Symbols used
Explains the meaning of various symbols used in the manual.
2 Safety instructions
General Safety Guidelines
Outlines responsibilities, product suitability, intended use, and handling precautions for safe operation.
3 Functions and features
3.1 Application area
Describes the intended applications and suitable industries for the sensor.
3.2 Restriction of the application area
Lists unsuitable media and applications for the sensor.
4 Getting started
4.1 Example configuration 1
Provides a step-by-step guide for setting up the sensor with mineral oil.
5 Function
5.1 Measuring principle level
Explains how the sensor determines the level using the capacitive measuring principle.
5.2 Measuring principle temperature
Describes how the temperature is detected using a Pt element at the probe's end.
5.3 Operating principle / features of the unit
Explains the unit's operational principles and available features.
5.3.1 Operating modes
Details the three available operating modes: manual media selection with/without overflow prevention, and automatic medium detection.
5.3.2 Notes on the integrated overflow prevention
Provides detailed information and parameters related to the integrated overflow prevention feature.
5.4 Display functions
Explains how the device displays current values and indicates switching status via LEDs.
5.5 Analogue function
Introduces the unit's analogue output capability for level and temperature.
5.5.1 Level measurement with overflow prevention
Explains analogue output configuration for level measurement when overflow prevention is active.
5.5.2 Level measurement without overflow prevention
Describes analogue output behavior for level measurement when overflow prevention is deactivated.
5.5.3 Temperature measurement
Explains how the analogue signal is scaled for temperature measurement and output behavior.
Output function voltage output
Details the output function for voltage output, including scaled and maximum ranges.
5.6 Switching functions
Explains the unit's switching output capabilities and configuration.
5.7 Offset for indicating the real level in the tank
Defines the distance between tank bottom and probe edge as an offset value.
5.8 Defined state in case of a fault
Explains how to define output states in case of detected faults.
5.9 Extreme value memory
Allows retrieval of minimum and maximum temperatures since the last memory reset.
5.10 IO-Link
Describes the IO-Link interface for direct access to data and parameter settings.
6 Installation
6.1 Installation instructions for operation with overflow prevention
Provides installation steps for units operating with overflow prevention enabled.
6.2 Installation instructions for operation without overflow prevention
Outlines installation guidelines when overflow prevention is deactivated.
6.2.1 Installation in the inactive zone
Specifies minimum distance requirements when installing the sensor in the inactive zone.
6.2.2 Installation in the active zone
Details minimum distance requirements for installing the sensor in the active zone.
6.3 Other installation notes
Provides additional notes on mounting in pipes and tanks, including minimum diameter requirements.
6.3.1 Marking of the installation height
Explains the use of a clip to mark and ensure correct installation height for accurate function.
7 Electrical connection
Connecting the unit
Details the wiring process, core colors, and example connection circuits for the sensor.
8 Operating and display elements
Indicator LEDs and Buttons
Explains the function of indicator LEDs, the Mode/Enter button, and the Set button.
Alphanumeric display
Describes the 4-digit alphanumeric display and its various display functions.
9 Menu
9.1 Menu structure
Illustrates the hierarchical structure of the device's menu system and parameter navigation.
10 Parameter setting
10.1 Parameter setting in general
Provides a general step-by-step guide for navigating and setting parameters using the device buttons.
10.2 Basic settings
Covers fundamental settings like assigning process values and defining units.
Process Value Assignment for Outputs and Display
Explains assigning level/temperature to outputs (SEL1/SEL2) and display (SELd).
Measurement Unit Configuration
Details setting units for level (cm/inch) and temperature (°C/°F).
10.2.5 Set the offset [OFS]
Explains how to set an offset value for the probe's reference point.
10.2.6 Set the medium [MEdI]
Guides on selecting the medium type for sensitivity matching and automatic detection.
10.2.7 Set the overflow prevention [OP]
Details how to set the position of the overflow prevention segment or deactivate it.
10.2.8 Adjust the overflow prevention [COP]
Explains the procedure for adjusting the overflow prevention OP after installation.
10.3 Setting of output signals
Introduces settings for output signals, focusing on OUT1 (switching output).
10.3.1 Set output function [ou1] for OUT1 (switching output)
Explains configuring the switching function for OUT1, including hysteresis and window modes.
10.3.2 Set output function [ou2] for OUT2 (analogue output)
Details setting the output function for the analogue output OUT2 (mA or V, inverted/non-inverted).
10.3.3 Define switching limits [SP1] / [rp1] (hysteresis function)
Describes setting the switching points (set and reset) for the hysteresis function.
10.3.4 Define switching limits [FH1] / [FL1] (window function)
Explains setting the upper and lower limits for the window switching function.
10.3.5 Scale analogue signal [ASP2] / [AEP2]
Guides on scaling the analogue signal for temperature measurement using start and end points.
Switching Output Timing and Logic Settings
Covers setting switching delay, switch-off delay, and switching logic for OUT1.
Fault Handling and Output Response
Defines how outputs react to faults, including ON, OFF, or process value response.
Display Configuration and Parameter Reset
Covers configuring the display and resetting parameters to factory defaults.
12 Operation
12.1 Operation indication
Explains the device's operating mode and how to interpret indicators like the display and LEDs.
Status and Warning Indications
Details various status messages like [UL], [OL], [FULL], and lock states ([Loc], [uLoc]).
12.2 Read the set parameters
Explains how to view currently set parameters on the device display.
12.3 Read / reset extreme value memory temperature
Describes how to read and clear the stored extreme temperature values.
12.4 Fast selection level / temperature
Allows quick switching between displaying level and temperature values.
12.5 Error indications
Lists common errors, their possible causes, and recommended troubleshooting measures.
12.6 Output response in different operating states
Details how OUT1 and OUT2 respond during initialization, normal operation, and fault conditions.
13 Technical data
13.1 Setting values [OFS]
Provides the setting ranges and step increments for the offset parameter.
13.2 Setting ranges switching limits for level
Lists the setting ranges and step increments for level switching limits (SP1/FH1, rP1/FL1).
13.3 Setting ranges switching limits for temperature
Details the setting ranges and step increments for temperature switching limits.
13.4 Setting values [OP]
Shows the setting values and ranges for the overflow prevention parameter (OP) across different models.
13.5 Calculation aids [OP]
Provides formulas and examples for calculating the overflow prevention (OP) position from cover or bottom.
13.5.1 Definition "from the cover"
Explains how to calculate the OP position based on distances from the tank cover.
13.5.2 Definition "from the bottom"
Details how to calculate the OP position based on distances from the tank bottom.
13.6 Setting ranges [ASP2] and [AEP2]
Lists the setting ranges and step increments for analogue signal start and end points.
14 Maintenance / cleaning / change of medium
14.1 Maintenance information for operation without overflow prevention
Provides reinitialization guidelines after maintenance for units without overflow prevention.
15 Factory setting
Factory Settings Overview
Presents a table comparing default factory settings with user-configurable options for various parameters.
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