Yokogawa engineered the AAR145-S00 as a precision input module for CENTUM VP and CENTUM CS 3000 systems. This unit accepts signals from RTD temperature sensors and potentiometer position devices. It converts resistance measurements into digital data for accurate process monitoring.
Key Technical Specifications
The AAR145-S00 module features a compact housing suitable for DIN rail or panel mounting. It measures 107 millimeters in height and 130 millimeters in depth. This unit weighs approximately 0.3 kilograms for flexible installation.
| Specification | Detail |
|---|---|
| Model Number | AAR145-S00 |
| Module Type | RTD / Potentiometer Input Module |
| Input Channels | 8 isolated input channels |
| RTD Types | Pt100, Pt50, Ni100, Cu10, Cu50 |
| RTD Wiring | 2-wire, 3-wire, or 4-wire connection |
| Potentiometer Range | 0 to 100 ohms up to 0 to 2000 ohms |
| Accuracy | ±0.1 percent of span |
| Isolation | 500 V AC between channels and system |
| Data Update Period | 1 second |
| Excitation Current | 0.5 mA for RTD measurement |
| Dimensions | 107 x 33 x 130 mm (H x W x D) |
| Weight | 0.3 kg |
Moving to connectivity, this module provides eight isolated channels for various resistance-based sensors. You connect RTDs or potentiometers directly to the terminal blocks using 2-wire, 3-wire, or 4-wire configurations. Consequently, the design accommodates diverse field installations with minimal wiring complexity.
Design and Application Focus
Engineers select the AAR145-S00 for its high-accuracy temperature and position measurement capabilities. The design includes 500 V AC isolation to protect the system from electrical noise. Furthermore, the module supports multiple RTD types including Pt100, Ni100, and Cu10 for global compatibility. This feature ensures seamless integration with existing sensor inventories.
Unlike standard analog input modules, this unit provides excitation current specifically for resistance-based sensors. You can configure each channel independently for RTD or potentiometer input types. Additionally, the 3-wire and 4-wire connection options compensate for lead resistance errors in long cable runs.
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
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