Description

The Yokogawa AAR145-S00 S1 RTD/POT Input Module is an advanced 16-channel module with isolated channels designed to handle signals from RTD, potentiometer, thermocouple, and mV sources. The AAR145-S00 S1 variant includes the ISA Standard G3 option, offering enhanced isolation for the input and output circuits. This feature improves noise immunity and reduces the risk of ground faults.

Unique Features

In addition to the ISA Standard G3 option, the AAR145-S00 S1 module includes minor firmware, hardware, or documentation modifications compared to the AAR145-S00 module. Despite these differences, both modules share the same fundamental functionality.

Detailed Specifications

• Model: AAR145-S00 S1
• Number of Input Channels: 16, isolated
• Supported Signal Types: mV, thermocouple (TC), RTD, and potentiometer (POT)
• Isolation: Between field and system, and between each channel
• Wiring Resistance: 150 Ω or less (per wire)
• Measurement Current: RTD: 1 mA
• Data Update Period: 1 s
• Burn-out Detection:
  • Setting: Not available/available (UP/DOWN)
  • Detection Time: 60 s
• Temperature Drift:
  • RTD: ±0.3 Ω/10 °C
  • POT: ±0.4 %/10 °C
• Maximum Current Consumption: 350 mA (5 V DC)
• Weight: 0.3 kg
• External Connection: Dedicated cable (KS8/AKB335)

Compliance

• Standard: JIS C1604:1989 (Pt100, JPt100)
• Type B: Does not carry out temperature compensation and cannot measure temperatures below 44 ºC.

Temperature Compensation

• Wiring Resistance for Signal Cables: Must be identical for INA and INC.
• Reference Junction Compensation Accuracy:
  • By the Terminal Board (AET4D):
    • -20 to 0 ˚C: ±1.5 ˚C
    • 0 to 30 ˚C: ±1.0 ˚C
    • 30 to 70 ˚C: ±1.5 ˚C
  • In the Standard Cabinet:
    • 0 to 30 ˚C: ±1.0 ˚C
    • 30 to 50 ˚C: ±1.5 ˚C

Suffix Codes

• -S: Standard type
• 0: Basic type