Yokogawa AAR181-S50 RTD Input Module
Configured for high-accuracy RTD sensor measurement and temperature monitoring in CENTUM VP platforms, the Yokogawa AAR181-S50 (AAR181 Isolated RTD Input Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
The AAR181-S50 model code indicates specific functional and revision options within the Yokogawa DCS hardware matrix. In this structure, AAR181 identifies the base 12-channel isolated temperature input module, while the -S50 suffix specifies the standard conformal coating, terminal connection layout, and system revision parameters for installation in CENTUM VP baseplates.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAR181-S50 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.2 kg (0.44 lbs) |
| Dimensions | Standard Yokogawa CENTUM VP Module Footprint |
| Operating Temp | -20 to 70 deg C |
| Power Consumption | 310 mA (5 VDC), 450 mA (24 VDC) |
| Input Channels | 12 channels |
| Sensor Input Types | RTD (Pt100, Pt1000), TC, mV, 4-20 mA DC, 1-5 VDC |
| Measurement Accuracy | ±0.1% of reading |
| Update Period | 10 ms |
| Step Response Time | 100 ms |
| Isolation | Channel-to-channel and channel-to-system isolation |
DCS Process Control & Isolation Architecture
The Yokogawa AAR181-S50 RTD input card processes high-speed thermal sensor inputs across CENTUM VP automation control nodes. Built with channel-to-channel isolation circuits, the card isolates incoming RTD sensor lines from backplane logic, eliminating ground loops and noise interference. The module delivers high-density data acquisition with a fast 10 ms update period and 100 ms step response time, supporting 4-20 mA HART loop protocol connectivity and cold junction compensation (CJC) for temperature monitoring applications.
Frequently Asked Questions
Q: What sensor types are natively supported by the inputs on the AAR181-S50?
A: The module is optimized for standard RTD sensors (such as Pt100 and Pt1000) while also supporting Thermocouples (TC), mV inputs, 4-20 mA DC, and 1-5 VDC signals.
Q: How does channel-to-channel isolation affect temperature signal processing on the AAR181-S50?
A: Channel-to-channel isolation prevents field-side electrical noise, common-mode voltages, and ground loops from cross-contaminating adjacent channels, ensuring measurement accuracy within ±0.1% of reading.
Q: What are the backplane power supply current requirements for the AAR181-S50 card?
A: The module draws a maximum current of 310 mA from the internal 5 VDC bus line and 450 mA from the auxiliary 24 VDC supply rail.
Field Installation Guidelines
- Verify that the card cage guide rails are clean and free of physical debris prior to sliding the AAR181-S50 into its designated baseplate slot.
- Seat the module firmly into the backplane connector and hand-tighten the top and bottom retaining screws to ensure proper chassis grounding.
- Route RTD sensor lead wires through dedicated low-voltage instrument wireways separate from AC power and motor cables to minimize EMI noise coupling.
- Terminate individual signal cable shields to the system ground bus bar using a single-point grounding configuration.
- Maintain adequate cabinet airflow and ventilation to ensure operating ambient temperatures remain strictly within specified limits.
Yokogawa AAR181-S50 RTD Input Module
Yokogawa AAR181-S50 RTD Input Module
Configured for high-accuracy RTD sensor measurement and temperature monitoring in CENTUM VP platforms, the Yokogawa AAR181-S50 (AAR181 Isolated RTD Input Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
The AAR181-S50 model code indicates specific functional and revision options within the Yokogawa DCS hardware matrix. In this structure, AAR181 identifies the base 12-channel isolated temperature input module, while the -S50 suffix specifies the standard conformal coating, terminal connection layout, and system revision parameters for installation in CENTUM VP baseplates.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAR181-S50 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.2 kg (0.44 lbs) |
| Dimensions | Standard Yokogawa CENTUM VP Module Footprint |
| Operating Temp | -20 to 70 deg C |
| Power Consumption | 310 mA (5 VDC), 450 mA (24 VDC) |
| Input Channels | 12 channels |
| Sensor Input Types | RTD (Pt100, Pt1000), TC, mV, 4-20 mA DC, 1-5 VDC |
| Measurement Accuracy | ±0.1% of reading |
| Update Period | 10 ms |
| Step Response Time | 100 ms |
| Isolation | Channel-to-channel and channel-to-system isolation |
DCS Process Control & Isolation Architecture
The Yokogawa AAR181-S50 RTD input card processes high-speed thermal sensor inputs across CENTUM VP automation control nodes. Built with channel-to-channel isolation circuits, the card isolates incoming RTD sensor lines from backplane logic, eliminating ground loops and noise interference. The module delivers high-density data acquisition with a fast 10 ms update period and 100 ms step response time, supporting 4-20 mA HART loop protocol connectivity and cold junction compensation (CJC) for temperature monitoring applications.
Frequently Asked Questions
Q: What sensor types are natively supported by the inputs on the AAR181-S50?
A: The module is optimized for standard RTD sensors (such as Pt100 and Pt1000) while also supporting Thermocouples (TC), mV inputs, 4-20 mA DC, and 1-5 VDC signals.
Q: How does channel-to-channel isolation affect temperature signal processing on the AAR181-S50?
A: Channel-to-channel isolation prevents field-side electrical noise, common-mode voltages, and ground loops from cross-contaminating adjacent channels, ensuring measurement accuracy within ±0.1% of reading.
Q: What are the backplane power supply current requirements for the AAR181-S50 card?
A: The module draws a maximum current of 310 mA from the internal 5 VDC bus line and 450 mA from the auxiliary 24 VDC supply rail.
Field Installation Guidelines
- Verify that the card cage guide rails are clean and free of physical debris prior to sliding the AAR181-S50 into its designated baseplate slot.
- Seat the module firmly into the backplane connector and hand-tighten the top and bottom retaining screws to ensure proper chassis grounding.
- Route RTD sensor lead wires through dedicated low-voltage instrument wireways separate from AC power and motor cables to minimize EMI noise coupling.
- Terminate individual signal cable shields to the system ground bus bar using a single-point grounding configuration.
- Maintain adequate cabinet airflow and ventilation to ensure operating ambient temperatures remain strictly within specified limits.
