Yokogawa AAT141-S00 S2 Thermocouple/mV Input Module

Configured for wide-area temperature measurement execution in DCS network platforms, the Yokogawa AAT141-S00 S2 (AAT141-S00 S2 Thermocouple/mV Input Module) provides direct physical/electrical execution.

Hardware Specifications

Channel-to-Channel Isolation and CJC Architecture

The AAT141-S00 S2 incorporates high-grade hardware isolation designs to protect measurement loops from common-mode voltage interference. Key operational traits include:

• Galvanic channel-to-channel isolated inputs minimizing measurement drift and cross-channel noise propagation across high-density thermocouple loops.
• Integrated cold junction compensation (CJC) circuitry embedded directly into the terminal block assembly to maintain reference junction accuracy.
• Multi-point linearization algorithms processing raw millivolt data into stable high precision ($\pm$0.1% of full scale) engineering units prior to backplane transmission.

Frequently Asked Questions

Q: Does the AAT141-S00 S2 support live hot-swapping under power?

A: No. Power must be isolated from the specific slot and terminal assembly before module extraction to prevent backplane pin damage and transient current surges.

Q: What are the noise and response characteristics supported by this input card?

A: The hardware delivers a low noise floor of less than 5 $\mu$Vrms and a fast response time of less than 2 seconds.

Field Installation Guidelines

• Secure the module firmly onto the designated DIN-rail mounting setup, ensuring physical stability under high-vibration industrial conditions.
• Terminate incoming thermocouple extension wires directly onto the corresponding cold-junction compensated terminal blocks, maintaining proper polarity throughout.
• Ensure all signal shields are grounded exclusively at one end to the designated cabinet earth bar to prevent ground loops and electromagnetic interference, utilizing a 24 VDC power supply.