Aplisens

Aplisens Smart Temperature Transmitter LI-24ALW

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LI-24ALW
  • Aplisens LI-24ALW smart temperature transmitter converting RTD or thermocouple inputs into a 4–20 mA HART signal with dual-channel processing, galvanic isolation, and hazardous area certifications.
  • Technical specification page detailing LI-24ALW input types, RTD and thermocouple ranges, power supply requirements, output characteristics, alarm settings, and ambient temperature limits.
  • Electrical wiring diagrams for the Aplisens LI-24ALW showing RTD, thermocouple, potentiometer, and voltage input connections for single and dual-channel configurations.
  • Ordering information page for the Aplisens LI-24ALW showing configuration options, sensor selections, explosion protection approvals, safety versions, and certification markings.
  • Ordering information page for the Aplisens LI-24ALW showing configuration options, sensor selections, explosion protection approvals, safety versions, and certification markings.
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Description

Pricing Available Upon Request
The Aplisens LI-24ALW Smart Temperature Transmitter converts RTD or thermocouple signals into a standard 4–20 mA output with HART and offers two independent channels for advanced temperature functions. For accurate selection and pricing, please call 865-900-8844 or email KSmith@CPSCalibrations.com.

The Aplisens LI-24ALW is a smart temperature transmitter that converts the resistance of an RTD or the voltage of a thermocouple into a standard 4–20 mA signal with HART. The transmitter has two separate channels enabling measurement of temperature difference, average, average with redundancy, and maximum/minimum temperature functions. Configuration is performed via PC + HART/USB converter using Aplisens RAPORT 2 software.

  • Output: 4–20 mA + HART
  • Galvanic insulation: IN / OUT
  • Programmable sensor type & measuring range
  • RTD line compensation
  • Thermocouple cold junction compensation: internal / external (Pt100) / constant value
  • Diagnostics: autodiagnostic system
  • Hazardous area options: ATEX / IECEx (intrinsic safety & explosion proof)
  • Safety version: SIL2 / SIL3 options available

LI-24ALW can be used with direct mounted temperature sensors or with remote sensors connected by cable.

Feature Details
Output Signal 4–20 mA + HART
Power Supply 13.5…55 VDC (standard)
Ex ia: 13.5…30 VDC
Ex d: 13.5…45 VDC
Safety: 12.5…36 VDC
Safety Ex ia: 12.5…30 VDC
Ambient Temperature -40…+80°C (standard / Ex ia)
-40…+75°C (Ex d)
-40…+85°C (Safety)
-40…+75°C (Safety Ex ia / Safety Ex d)
Sensor Types (examples) RTD: Pt100, Pt200, Pt500, Pt1000, Ni100, Cu100
Thermocouples: K, J, S, B, N, T, R, E
Cold Junction Compensation Internal sensor / External Pt100 / Constant value
Alarm Signal 3.75 mA / 21.5 mA (NORMAL) or 3.6 mA / 21 mA (NAMUR NE89) or user setting
Time Constant 0.3 s
Electronic Damping 0…30 s
Galvanic Insulation Optoelectrical

Note: LI-24ALW/Safety is programmed only with HART protocol; local buttons allow display setting changes only.

LI-24ALW pricing depends on version, approvals, and sensor configuration. To quote correctly, we typically confirm:

What We Need Examples
Version LI-24 / ALW (standard) or LI-24 / ALW / Safety (SIL)
Area Classification General purpose, Ex ia (intrinsic safety), or Ex d (flameproof)
Sensor Type RTD (Pt100/Pt1000/Ni100/Cu100) or TC (K/J/T/N/E/R/S/B)
Mounting Style Remote sensor or direct mounted sensor (WRGN/WRGB/WOP1)
Measuring Range Required temperature range and output behavior (alarm settings, damping)

Call 865-900-8844 or email KSmith@CPSCalibrations.com with your sensor type, range, and hazardous-area requirements and we’ll send a formal quote.

LI-24ALW Data Sheet (PDF) User Manual (Rev. 02) (PDF) User Manual (Rev. 01) (PDF) Declaration of Conformity (SIL) (PDF) Declaration of Conformity UE (Safety) (PDF) Certificate (EN) (PDF) ATEX Certificate (PDF) IECEx Certificate (PDF) ATEX Ex i Certificate (PDF) IECEx Ex i Certificate (PDF)

Need help selecting RTD vs thermocouple input, dual-channel functions, or Ex/SIL requirements? Reach out and we’ll help.

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