YOKOGAWA AIP121 S2 Pressure Transmitter

The YOKOGAWA AIP121 S2, also cataloged as the AIP121 S2 Pressure Transmitter, operates as a dedicated hardware component for measuring industrial pressure loops and transmitting digital process variables within control networks.

Suffix Breakdown & Model Matrix

The model AIP121 S2 belongs to the Yokogawa pressure transmitter series. Based on standard part number configuration rules, the base designation identifies the AIP121 pressure transmitter form factor, while the specific suffix string encodes the material build configuration and communication protocol options.

Hardware Specifications

Process Control & Communication Interfaces

The unit delivers high measurement stability and supports multiple communication options for remote setup and monitoring. Channel-to-channel isolation and 4-20 mA HART loop protocol compatibility ensure high-integrity signal transmission, while FOUNDATION Fieldbus and PROFIBUS PA connectivity allow integration into distributed control architectures. Furthermore, cold junction compensation principles and digital performance enhancements support precise process tracking across harsh environments.

Frequently Asked Questions

Q: Does the pressure transmitter support hot-swap replacement under live system power?

A: No, the 24 V DC loop supply and process pressure lines must be completely isolated and depressurized prior to handling or replacing the YOKOGAWA AIP121 S2 device to prevent electrical faults and fluid leakage.

Q: What communication protocols are natively supported by this hardware variant?

A: The transmitter supports multiple protocol configurations including BRAIN, HART, FOUNDATION fieldbus, and PROFIBUS PA.

Field Installation Guidelines

Mount the transmitter securely onto process piping or brackets using corrosion-resistant stainless steel fittings, ensuring proper NPT thread engagement with standard thread sealant. Route 4-20 mA signal loops and fieldbus communication cables through shielded twisted-pair conduits, keeping them physically separated from high-voltage power lines to minimize electromagnetic interference. Verify power supply polarity and ground terminations prior to system energization.