TERT*A Yokogawa Terminal Block

The Yokogawa TERT*A, also cataloged as the TERT Terminal Block, operates as a dedicated hardware component for 16-point RTD signal termination within CENTUM DCS platform assemblies.

Hardware Specifications

Yokogawa Cold Junction Compensation & Signal Integrity

Yokogawa temperature acquisition assemblies rely on stable terminal block connections to preserve signal accuracy. The internal conductor layout maintains isolated field wire paths to suppress noise during resistance temperature detector (RTD) processing. Operating in tandem with cold junction compensation (CJC) references and 4-20 mA HART loop protocol wiring, the module maintains robust insulation resistance and high dielectric withstand ratings to eliminate crosstalk and signal drift across all 16 channels.

Frequently Asked Questions

Q: What torque rating and terminal connection style are required for wiring the TERT*A?

A: The terminal block utilizes M4 screw terminals. Wiring lugs should be torqued securely to standard industrial specification (typically 1.2 N m) to prevent resistance changes across RTD measuring loops.

Q: What insulation isolation testing limits apply to the TERT*A terminal assembly?

A: The assembly provides an insulation resistance of at least 100 Mohm measured at 500 V DC and sustains a dielectric withstanding voltage rating of 500 V AC across contacts and ground rails.

Field Installation Guidelines

Mount the TERT*A terminal block securely onto the enclosure mounting frame or DIN rail. Ensure all RTD extension wires are properly color-coded and terminated using insulated spade or ring lugs mated to the M4 screws. Maintain continuous cable shield grounding at the cabinet earth busbar, and separate RTD signal wiring conduits from high-voltage AC lines to prevent magnetic noise coupling.