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