Introduction: High-Precision Analog Signal Acquisition
The Yokogawa AAV141 Analog Input Module is engineered to deliver accurate and stable analog voltage and current measurements within Yokogawa distributed control systems (DCS). Serving as a core field-to-control interface, this module captures real-world process variables—such as temperature, pressure, level, and flow—by converting sensor outputs into reliable digital data for the control system. Designed for industrial automation environments, the AAV141 balances precision, durability, and ease of integration to support mission-critical applications.
Technical Specifications: Accuracy, Dimensions, and Environment
| Specification | Details |
|---|---|
| Product Type | Analog Input Module |
| Model Number | AAV141 |
| Signal Types Supported | DC Voltage and DC Current |
| Input Channels | 4 analog input channels |
| Input Voltage Range | –10 to +10 V DC |
| Input Current Range | 0 to 20 mA DC |
| Input Impedance | Voltage: ≥ 100 kΩ; Current: 250 Ω typical |
| Resolution | 16-bit or better |
| Accuracy | ±0.1% of full scale (typical) |
| Conversion Time | ≤ 10 ms per channel |
| Isolation | Channel-to-bus isolation |
| Mounting | Rack installation in I/O chassis |
| Dimensions (H × W × D) | approx. 130 × 30 × 125 mm |
| Weight | approx. 0.30 kg |
| Operating Temperature | –10 °C to +60 °C |
| Storage Temperature | –25 °C to +70 °C |
| Humidity Tolerance | Up to 90% RH (non-condensing) |
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