Yokogawa ASR133 RTD/POT Input Module

The Yokogawa ASR133 is a highly efficient RTD/POT input module designed to integrate resistance-based temperature sensors (RTDs) and potentiometers (POTs) into digital control systems. It accurately converts resistance variations from these sensors into digital signals for precise process monitoring and control in industrial automation systems.

Key Features of the Yokogawa ASR133

The ASI133 delivers robust functionality and reliability for temperature and resistance-based signal monitoring. It offers high performance while minimizing interference, making it ideal for a wide range of industrial applications.

• Eight Isolated Channels: The ASI133 supports eight isolated channels, allowing it to process eight independent RTD or POT signals simultaneously. This feature eliminates the risk of electrical interference between channels.
• Wide Resistance Range: It is compatible with various RTD and POT sensor types, providing a broad resistance range for flexible applications.
• RTD Sensor Compatibility: The module supports popular RTD types such as Pt100, Pt500, and Ni100, ensuring accurate temperature measurement for industrial processes.
• Selectable Input Type: The ASI133 can be configured to work with either RTD or POT inputs, providing flexibility for different process needs.
• Compact Design: The module’s compact dimensions of 3.8 cm x 12.7 cm x 15.2 cm (1.5″ x 5″ x 6″) make it ideal for installations with limited space, such as machinery or control cabinets.

These features enable the ASI133 to provide precise and reliable signal conversion for a variety of temperature and resistance measurement applications.

Electrical and Performance Specifications

The ASI133 excels in terms of electrical performance, offering high accuracy and fast data processing. It operates effectively in both temperature and resistance signal applications.

• Input Resistance:
  • For 2-wire configuration: 400 Ω at 20 mA to 750 Ω at 4 mA.
  • For 4-wire configuration: 485 Ω at 20 mA to 925 Ω at 4 mA.
  • Power ON:
  • Power OFF: 1 MΩ or larger.
• Accuracy: The ASI133 ensures high accuracy with +16 µA.
• Step Response Time: The ASI133 responds in just 100 ms, offering quick signal conversion for real-time data.
• Data Update Period: Data is updated every 10 ms, ensuring near-instantaneous monitoring and control.
• Transmitter Power Supply: The module requires 16 V DC or higher with an output current limit of 20 mA.
• Maximum Normal Mode Input Voltage: 25 V, applied to terminals by a 4-wire transmitter.
• Drift Due to Ambient Temperature Change: +16 µA/10°C, ensuring minimal signal drift due to temperature fluctuations.

These specifications ensure that the ASI133 delivers precise, real-time performance for accurate process control and monitoring.

Current Consumption and Environmental Characteristics

The ASI133 is designed to operate efficiently, consuming minimal power while delivering high performance. It also performs reliably across a wide range of environmental conditions.

• Maximum Current Consumption:
  • 150 mA at 5 V DC.
  • 450 mA at 24 V DC.
• Weight: The module weighs approximately 0.30 kg, ensuring easy installation and handling.
• Operating Temperature Range: The ASI133 operates effectively in temperatures ranging from -20°C to 70°C (-4°F to 158°F), making it suitable for harsh industrial environments.

Technical Specifications

Manufacturer Information

The Yokogawa ASR133 is produced by Yokogawa, a leader in industrial automation and control systems. With decades of expertise, Yokogawa manufactures high-performance components like the ASI133, ensuring precision, reliability, and adaptability in industrial environments.