The Yokogawa UT520-08 is a Dual-Digital Display Meter designed for simultaneous monitoring of two different process variables.
Its primary function is to accept two independent input signals from sensors or transmitters and display their values simultaneously on a single, compact dual-display unit. This is highly effective for applications where comparing or monitoring two related parameters is necessary, such as inlet/outlet temperature, pressure and temperature, or flow and total volume.

The Yokogawa UP750-51/Z+Z25 is not a single unit but a pre-configured system consisting of a Programmable Indicator/Controller and a corresponding current transformer (CT) sensor for electrical current measurement.

The Yokogawa VW3A4611 is an optional expansion board designed for the GA700 and A1000 series industrial AC inverters. This module provides additional analog input and output channels, significantly enhancing the flexibility and integration capabilities of the variable frequency drive (VFD) with external control systems.

The Yokogawa F3BU09-0N is a FOUNDATION Fieldbus (FF) Power Conditioner (PCD), commonly referred to as a "Terminator" or "Barrier". It is a critical component in a FOUNDATION Fieldbus H1 network infrastructure, designed to be installed inside a Fieldbus Power Supply or a related system cabinet.

The Yokogawa UT152-VN is a critical safety interface device. It is not just a signal converter but a certified safety barrier that protects industrial plants by ensuring signals to and from hazardous areas are energy-limited, thus preventing the risk of fire or explosion.

The Yokogawa UT155-VN is a repeater-type safety isolator. It is the preferred choice when the field device in the hazardous area has its own separate power source (4-wire configuration). Its role is to safely pass through and isolate the signal while maintaining the integrity of the intrinsic safety barrier.

The Yokogawa UT150-VN/AL/RES is a robust and reliable hardwired alarm and trip module. Its key differentiator is the manual reset (latching) function, making it indispensable for critical alarm and shutdown applications where an automatic return to normal operation without operator acknowledgment is unacceptable. It provides a simple, yet highly effective, layer of safety logic.

The Yokogawa UT150-RN/RS is a robust alarm trip module designed for 100V AC powered systems and featuring a critical remote reset capability. It combines the reliable process monitoring and latching alarm functions of the UT150 series with the flexibility of being reset from a distant location, making it ideal for distributed control systems and unmanned facilities. The key differences from the UT150-VN/AL/RES are its power supply requirement and the enhanced remote reset functionality.

The Yokogawa UT150-RR/RS is a robust alarm trip module designed for 120V AC, 60 Hz powered systems and featuring a critical remote reset capability. It is the functional equivalent of the UT150-RN/RS but tailored for the North American power standard. The key difference from other UT150 models (like the VN) is its AC power supply requirement and the enhanced remote reset functionality.

The Yokogawa UT150-RR/RS is a single-channel alarm trip module designed for rail mounting in Yokogawa UTSX Series housings. It monitors 4-20 mA DC signals and provides two configurable alarm setpoints with relay outputs. The "/RS" suffix denotes its remote reset functionality, allowing alarm conditions to be reset either locally via a front button or remotely via a dry contact signal. The "RR" designation indicates operation with a 120 V AC, 60 Hz power supply, making it suitable for North American and other 120V AC markets.