AAR181-S03 | YOKOGAWA RTD Input Module

AAR181-S03 Specifications

Model: AAR181-S03
Type: Temperature Input Module

General Features

Number of Input Channels: 12, isolated
Input Signal Types:
- Thermocouple (TC): Compliant with JIS C1602:1995, IEC 584:1995
- RTD: Compliant with JIS C1604:1997, IEC 751:1995
- Pt100: 3-wire type
Switching Input Signals: CH1 to CH12 are RTD inputs

Electrical Specifications

Allowable Input Voltage: ±5 V
Withstanding Voltage:
- Between input and system: 1500 V AC for 1 minute
Input Resistance:
- Power ON: 2 MΩ or larger
- Power OFF: 2 MΩ or larger

Accuracy

Thermocouple (TC): ±30 μV
Measurement Voltage (MV):
- ±80 μV for span (-100 to 150 mV)
- ±30 μV for span (-20 to 80 mV)
RTD Accuracy: ±120 mΩ
Allowable Total Resistance of Signal Source Plus Wiring: 400 Ω or less (wiring resistance per wire)
Effect of Allowable Signal Source Resistance (1000 Ω): ±20 μV
Reference Junction Compensation Accuracy: Within ±1 °C
Measurement Current (RTD): 1 mA

Temperature Drift

Input Voltage Drift:
- ±80 μV/10 °C (-100 to 150 mV input)
- ±30 μV/10 °C (TC/-20 to 80 mV input)
RTD Input Drift: ±120 mΩ/10 °C

Operational Specifications

Data Update Period: 1 second
Burn-Out Detection:
- All channels can be set together
- Setting: Not available/available (UP/DOWN)
- Detection Time: 60 seconds

Power Requirements

Maximum Current Consumption: 450 mA (5 V DC)
Weight: 0.2 kg

Connection

External Connection Type: Pressure clamp terminal

Model Description

The AAR181-S03 is designed for accurate temperature measurement in industrial environments, featuring isolated inputs for thermocouples and RTDs, along with various options for terminal connections.

Suffix Codes

-S: Standard type
0: Basic type
3: With ISA Standard G3 option and temperature (-20 to 70 °C) option

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