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TM2ARI8HT

The Schneider Electric TM2ARI8HT is an 8-channel analog input expansion module for the Modicon M221, M241, and M251 PLC systems. This module provides high-accuracy analog signal acquisition for temperature measurement, specifically designed for thermocouple sensors, enabling precise temperature monitoring in industrial automation applications.

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Specifications 1. General Information Parameter Specification Product Family Modicon TM2 Expansion I/O Catalog Number TM2ARI8HT Description 8-channel Analog Input Module - Thermocouple Channels 8 differential inputs Module Width 1 slot (24 mm) Hot Swap Not supported 2. Input Specifications Parameter Specification Sensor Type Thermocouple types: J, K, T, E, N, R, S, B Input Type Differential, isolated Resolution 16 bits (including sign) Conversion Time 50 ms per channel (configurable) Accuracy ±0.3% of full scale typical Cold Junction Compensation Built-in, automatic Input Impedance > 1 MΩ Maximum Input Voltage ±30 VDC (non-destructive) 3. Temperature Ranges Thermocouple Type Measurement Range Type J -210°C to +1200°C Type K -270°C to +1372°C Type T -270°C to +400°C Type E -270°C to +1000°C Type N -270°C to +1300°C Type R/S -50°C to +1768°C Type B +250°C to +1820°C 4. Electrical Specifications Parameter Specification Power Supply 24 VDC from TM2 bus or external Power Consumption • From bus: 1.8 W • From external: 2.5 W Isolation 500 VAC between field and logic LED Indicators Module status (green/red) 5. Physical Specifications Parameter Specification Dimensions (W × H × D) 24 × 90 × 70 mm Weight 0.12 kg Connector Type Removable screw terminal (20 positions) Wire Gauge 0.2 - 2.5 mm² (24-12 AWG) Mounting DIN rail (via TM2 rack) 6. Environmental Specifications Parameter Specification Operating Temperature 0°C to +55°C Storage Temperature -25°C to +70°C Protection Rating IP20 Certifications CE, UL, CSA, RoHS