Schneider Electric TM2ARI8LT Analog Input Module, 8x RTD (Pt100/Pt1000) Temperature Inputs, 12-bit, 24VDC, for Modicon M238 & Twido

Schneider Electric TM2ARI8LT 8-Channel RTD Analog Input Module

The Schneider Electric TM2ARI8LT is a dedicated analog input expansion module designed for precise temperature measurement in industrial automation applications. This module seamlessly integrates with Modicon M238 logic controllers, Twido PLCs, and Advantys OTB systems, providing 8 high-resolution channels specifically configured for Resistance Temperature Detector (RTD) inputs. It supports both Pt 100 and Pt 1000 temperature probes, making it a versatile solution for accurate temperature monitoring across a wide range of industrial processes.

Key Features:

• Part Number: TM2ARI8LT
• Product Type: Analog Input Module / I/O Expansion Module
• Compatibility: Modicon M238 Logic Controller, Twido PLC, Advantys OTB
• Analog Inputs: 8 channels, non-differential
• Input Types & Ranges:
  • Pt 100 Temperature Probe: -200...600 °C
  • Pt 1000 Temperature Probe: -50...200 °C
• Analog Input Resolution: 12 bits
• LSB Value: 0.006 °C (Pt 1000), 0.2 °C (Pt 100)
• Input Impedance: ≥ 10 kOhm
• Sampling Duration: 160 ms
• Acquisition Period: 320 ms per group of channel + 1 controller cycle time
• Measurement Error:
  • ± 0.3 % of full scale (Pt 1000) @ 25 °C
  • ± 0.5 % of full scale (Pt 100) @ 25 °C
• Total Error: 1 °C (Pt 1000), 4 °C (Pt 100)
• Supply Voltage: 24 VDC external (19.2…30 V limits)
• Insulation: Photocoupler between channels and internal logic (Dielectric Strength: 2500 V between I/O and internal logic, 500 V between I/O and external supply).
• Electrical Connection: Removable screw terminal blocks (for power supply and sensors)
• Current Consumption: ≤ 140 mA @ 24 VDC (external), 90 mA @ 5 VDC (internal)
• Dimensions (WxHxD): 90 mm x 90 mm x 70 mm (3.5 in x 3.5 in x 2.8 in)
• Net Weight: 0.19 kg (0.42 lb)