Yokogawa AAR145-S00 S1 16-Channel RTD POT Module
Manufacturer: Yokogawa
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Part Number: AAR145-S00 S1
Condition：New with Original Package
Product Type: RTD Input Modules
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Yokogawa AAR145-S00 S1 RTD POT Input Module
The Yokogawa AAR145-S00 S1 serves as the primary AAR145 RTD/POT Input Module utilized to execute high-density resistance signal conditioning across CENTUM VP DCS platforms.
Suffix Breakdown & Model Matrix
The suffix alphanumeric codes detail the structural build and modification parameters of the hardware assembly:
- AAR145: Base model designation specifying a 16-channel isolated RTD and potentiometer input hardware card.
- -S: Standard hardware type for general process automation deployments.
- 00: Basic type execution indicating standard system firmware compatibility and physical terminal interface.
- S1: Hardware style modification revision specifying enhanced thermal stability and updated onboard circuit protection.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AAR145-S00 S1 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.3 kg (0.66 lbs) |
| Dimensions | 3.3 cm x 10.7 cm x 13.0 cm (1.3 in x 4.2 in x 5.1 in) |
| Operating Temp | 0-50 deg C |
| Power Consumption | 350 mA at 5 VDC |
| Input Channels | 16 channel-to-channel isolated channels |
| Input Signal Types | Pt100 RTD (3-wire, JIS C1604:1997 / IEC 751:1995), Potentiometer (100 ohm to 10 kohm) |
| RTD Measuring Current | 1 mA |
| RTD Measurement Accuracy | ±150 mohm |
| POT Measurement Accuracy | ±0.2% of full scale |
| Channel-to-Channel Isolation | 200 VAC for 1 minute |
| Input-to-System Isolation | 500 VAC for 1 minute |
| Burnout Detection | Selectable UP / DOWN / OFF (approx. 60 s detection time) |
| Data Update Period | 1 s |
| Interface Cable | KS8 cable / AKB335 dedicated cable assembly |
| Redundancy | Supports dual-redundant configuration |
Process Control Signal Processing
This module delivers individual channel-to-channel galvanic isolation rated at 200 VAC, preventing cross-channel noise propagation across dense field cabling networks. Internal signal processing circuits allow independent channel assignment for either 3-wire Pt100 RTDs or potentiometer resistance sensors. The onboard current source supplies a precise 1 mA measurement current to eliminate self-heating errors in temperature elements. In addition, the integrated diagnostic engine continuously evaluates sensor loop continuity, driving the signal to configurable UP or DOWN burnout states within 60 seconds of a detected open circuit. High input impedance (1 M ohm) and low temperature drift preserve overall process signal integrity within the 4-20 mA HART loop protocol environment.
Frequently Asked Questions
Q: What interface cable is required to connect the module to field terminal blocks?
A: The module utilizes a dedicated KS8 or AKB335 interface cable assembly to establish low-resistance electrical connections to external system terminal boards.
Q: How does channel-to-channel isolation benefit temperature measurement loops?
A: Galvanic separation of 200 VAC between individual channels prevents ground potential differences on ungrounded field sensors from affecting adjacent channel readings.
Field Installation Guidelines
Insert the module into the assigned FIO node slot until the locking levers engage fully. Secure the AKB335 or KS8 interface cable, tightening retaining screws to maintain optimal terminal contact pressure. Route field wiring separate from high-voltage AC cables to minimize high-frequency electromagnetic interference. Connect all cable shields to a dedicated, single-point earth ground bar at the cabinet baseplate. Ensure cabinet ventilation fan assemblies maintain ambient enclosure air temperature within the 0 to 50 deg C operating window.