The Yokogawa AMN33 is a Signal Conditioner / Isolator Module belonging to the UTAdvanced series (also known as the UT55A series in some regions). It is a versatile and highly reliable module designed for signal interfacing in industrial process control systems.

The Yokogawa UP55A-020-11-00 is a Signal Conditioner / Isolator Module designed for use with Yokogawa's UTAdvanced and UT55A series signal conditioning systems.
Its primary function is to electrically isolate a standard 2-wire 4-20 mA DC input signal and convert it into an identical, isolated 4-20 mA DC output signal. This isolation is crucial for breaking ground loops, preventing noise interference, and protecting sensitive control system equipment from voltage surges or faults occurring in the field.

The Yokogawa AIP501 is an expansion / analog input / I/O / coupler module used in Yokogawa’s control systems such as CENTUM VP,Its role is to accept many analog inputs (voltage, current, RTD, thermocouple), or to act as a coupler in network / backplane connections (V-Net) for distributing input signals. It is used in industrial process control / monitoring environments.

The Yokogawa AIP502 is a V-Net Coupler Module (Style S1) used in Yokogawa’s CENTUM CS / CENTUM VP distributed control systems (DCS). Its purpose is to link/control communications between Field Control Units (FCUs) and other networked devices via the V-Net protocol. It acts as a bridge (“coupler”) for the V-Net network, enabling communication over Ethernet/other networks, facilitating high-speed, reliable data transfer within the control system. The unit is rack-mountable or module-mountable, designed for industrial environments.

The Yokogawa UM330-00 is a digital indicator with alarm functions, part of the UM330 series. It is designed for process monitoring – e.g. temperature, pressure, flow, etc. It features a universal input, multiple alarms, retransmission output, and built-in loop power supply for two-wire transmitters. It’s a panel mounted instrument (1/8 DIN size) with large LED display and is used where you need to monitor a variable, generate alarms when it goes out of range, and optionally send the measured value onward via analog output.

The Yokogawa UT551 is part of the GREEN Series of digital indicating controllers, designed for single-loop process control such as temperature, pressure, or flow. It provides universal input, clear digital display, multiple alarm functions, and versatile control outputs. The model code “-13” specifies a particular configuration of input/output and alarm options.

The Yokogawa UP550-00 is a compact, single-digit process indicator designed for simple and highly visible display of a single process variable's status. Unlike full-featured digital panel meters that show numerical values, the UP550-00 is designed to display a single character or a very limited set of codes (such as -1, 0, 1, H, L, etc.) based on the input signal.

The Yokogawa UP750-50 is a versatile Programmable Digital Panel Meter (digital indicator) designed for precise display of process variables. The "50" in the model number is a specific code that indicates this unit is pre-configured or optimized for AC voltage measurement.
Its primary function is to accept an AC voltage input signal, condition it, and display the true RMS value on a large, high-visibility display. It is commonly used to monitor the main power supply voltage in industrial control panels, electrical distribution systems, and on machinery.

The Yokogawa UP750-01 is a highly versatile Programmable Digital Panel Meter (also known as a digital indicator) designed for precise display of a wide range of industrial process signals.
Its core function is to accept an input signal from a sensor or transmitter, perform scaling and linearization if necessary, and present the measured value on a large, easy-to-read display. The "01" in the model number is a key identifier that typically signifies it is a base model with a standard, universal input capability, often pre-configured or most commonly used for basic DC voltage or current signals like 4-20 mA or 1-5V.

The Yokogawa UP750-51 is a highly versatile Programmable Digital Panel Meter designed for precise display and processing of a wide range of industrial signals.
Its core function is to accept an input signal from a sensor or transmitter, perform scaling, linearization, and other calculations, and then present the measured value on a large, easy-to-read display. The "51" in the model number is a key identifier that typically signifies it is pre-configured or particularly suited for a specific input type, most commonly AC Current when used with an external Current Transformer (CT).