LT3023 IFM Level And Temperature Sensor – LT0472B-B-00KLPKGUS

The IFM LT3023 is a compact level and temperature sensor designed for monitoring hydrous coolants, oils, and water-based media in industrial tanks. With dual analogue and digital outputs, IO-Link communication, and robust stainless steel housing, it ensures precise measurement and intelligent integration across fluid level and temperature-critical applications.

Technical Specifications

Model: LT3023
Manufacturer: IFM
Product Series: LT Series
Sensor Type: Level and temperature sensor
Measuring Range (Level): 0–472 mm
Temperature Range: –20…90°C

Application & Compatibility

• Designed for: Oils, coolants, water-based media
• Factory Medium Setting: Mineral oils
• Dielectric constant (ε): ≥2
• Incompatible Media: Highly conductive fluids, granulates, bulk material, acids, alkali
• Tank Pressure (Max): 0.5 bar (with accessories E43001–E43007, E43019)

Electrical Characteristics

• Operating Voltage: 18–30 VDC
• Current Consumption: < 50 mA
• Protection Class: III
• Reverse Polarity Protection: Yes
• Power-On Delay: < 3 s
• Connection Type: 1 × M12 connector (A-coded)
• Electrical Design: PNP/NPN

Output Configuration

• Total Outputs: 2
• Digital Outputs: 1 (NO/NC, configurable)
• Analogue Outputs: 1
• Output Type: Switching / Analogue / IO-Link
• Output Signal (Analogue): 4–20 mA | 0–10 V (invertible)
• Max. Load (mA): 500 Ω
• Min. Load (V): 2000 Ω
• Short-Circuit / Overload Protection: Yes (thermal, pulsed)
• Voltage Drop (DC): ≤2.5 V
• Switching Output Current Rating: 200 mA

Level Detection & Range Settings

• Probe Length: 472 mm
• Active Range: 390 mm
• Inactive Zones (Top/Bottom): 60 mm / 22 mm
• Set Point (SP): 35…390 mm
• Reset Point (RP): 30…385 mm
• Adjustment Step: 5 mm
• Reference Points (OP): 139 to 407 mm in 5 mm steps
• Hysteresis (OP): 3 mm

Temperature Monitoring

• Measuring Range: –20…90°C
• SP / RP Range: –19.5…90°C | –20…89.5°C
• Adjustment Step: 0.5°C
• Resolution: 0.5 K
• Switch Point Accuracy: ±1.5 K
• Dynamic Response (T09): 90 s

Accuracy & Signal Output

• Level Measuring Error: ±5% of final value
• Repeatability: ±2 mm
• Resolution (Level): 5 mm
• Zero Signal: 0 V | 4 mA
• Full Signal: 10 V | 20 mA

IO-Link Communication

• Interface Type: IO-Link v1.1
• Transmission Type: COM2 (38.4 kBaud)
• SDCI Standard: IEC 61131-9
• SIO Mode Support: Yes
• Min. Cycle Time: 4.5 ms
• Device ID (Default): 647
• IO Profiles: Smart Sensor: Device ID, Diagnosis, Process Data
• Process Data: 1 binary, 4 analogue
• Required Master Port: Type A

Environmental Conditions

• Ambient Temperature: 0 to +60°C
• Storage Temperature: –25 to +80°C
• Medium Temperature (Coolants/Water): 0 to 35°C (to 60°C with E43101)
• Medium Temperature (Oil): 0 to 70°C (90°C for <1 hour)
• Enclosure Rating: IP67
• MTTF: 222 years

Mechanical Design

• Weight: 372.25 g
• Dimensions: Ø 16 mm
• Materials: Stainless Steel 304/316L, PBT, FKM, NBR, PA, PC, PP, TPV
• Wetted Parts: PP

Display & Diagnostics

• Display Unit: Alphanumeric 4-digit with LED indicators
• Green LEDs: cm, inch, °C, °F
• Yellow LED: Switching status
• Settings & Values: Configurable via display or IO-Link

Compliance & Approvals

• Shock Resistance: DIN EN 60068-2-27 (15 g, 11 ms)
• Vibration Resistance: DIN EN 60068-2-6 (5 g, 10–2000 Hz)
• EMC Standards: DIN EN 61000-6-2 / 6-4
• UL Certification: UL Approval No. H002

Key Features & Benefits:

✅ Level & Temperature Sensing in One: Consolidate monitoring with a single, compact sensor.

✅ IO-Link Ready: For Industry 4.0 integration and advanced parameterisation.

✅ Versatile Output Signals: PNP/NPN, analogue (current or voltage), and switching output.

✅ Wide Media Compatibility: Ideal for oils, water, and non-conductive coolants.

✅ Rugged Stainless Steel Design: IP67-rated and built to withstand industrial environments.

✅ Simple Parameter Setting: Fast setup via display or IO-Link interface.

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