AAR181-S50

Overview

• Model: AAR181-S50

• Type: RTD input module, 12-channel, isolated

• Suffix Codes:

  • -S: Standard type

  • 5: No explosion protection

  • 0: Basic type

Input Specification

• Number of Channels: 12 isolated channels

• Input Signal: RTD (JIS C1604-1997, IEC751:1995 Pt100, 3-wire type)

• Switchable Input Signal: Fixed RTD input for CH1–CH12

• Permissible Input Voltage: ±5 V

Withstanding Voltage

• Input to System (Power ON): 1500 V AC, 1 minute

Electrical Characteristics

• Input Impedance (Power ON): ≥2 MΩ

• Input Impedance (Power OFF): ≥2 MΩ

• Accuracy: ±120 mΩ (RTD)

• Permissible Source + Wiring Resistance: ≤40 Ω per line

• Reference Junction Resistance Effect: Not applicable

• Reference Junction Compensation Accuracy: Not applicable (RTD does not require cold junction compensation)

• Measurement Current: RTD 1 mA

• Temperature Drift: ±120 mΩ / 10 °C (RTD input)

• Data Update Cycle: 1 s

Burn-out Detection

• Setting: Not available / Available (UP/DOWN)

• Detection Time: 60 s

Power Consumption

• Maximum Current Consumption: 450 mA @ 5 V DC

Mechanical Specification

• Weight: 0.2 kg

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