TERT Yokogawa RTD Terminal Block Datasheet & Technical Manual

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Yokogawa TERT Terminal Board The Yokogawa TERT, also cataloged as the TERT Field I/O Terminal Block Module, serves as the...

SKU: TERT

Manufacturer: Yokogawa
Product No.: TERT
Product Type: RTD Terminal Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 4000g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa TERT Terminal Board

The Yokogawa TERT, also cataloged as the TERT Field I/O Terminal Block Module, serves as the primary TERT Terminal Block for RTD utilized to execute physical interface compilation across Yokogawa FIO, CENTUM VP, and STARDOM platforms.

Hardware Specifications

Parameter	Specification
Model	TERT (Style A)
Brand	Yokogawa
Origin	Japan (Manufacturing origin variants include Indonesia under part tracking number C2L415334 1115)
Weight	4.0 kg
Dimensions	Compact cabinet installation footprint matching standard marshalling arrays
Operating Temp	0 to 50 deg C
Power Consumption	Passive physical connection interface (0.0 W active power allocation)
Sensor Topology Input	Resistance Temperature Detector (RTD) multi-wire paths
Density Rating	16 independent input channels
Connection Termination	M4 rugged, vibration-resistant screw terminals
Insulation Resistance	Minimum 100 MOhm (Measured at 500 V DC)
Dielectric Isolation Barrier	500 V AC withstanding voltage threshold
Relative Humidity	5% to 90% RH, non-condensing
Hazardous Location Status	Certified compliant under CSA Non-Incendive parameters (Class I, Division 2)

Process Control & DCS Instrumentation Properties

The Yokogawa TERT implements 16 independent channel pathways dedicated to low-level Resistance Temperature Detector (RTD) signals, feeding accurate temperature variables directly into distributed control networks. The board configuration enforces strict channel-to-channel isolation limits to eliminate ambient electrostatic noise and ground potential differences that cause measurement errors in 3-wire and 4-wire RTD bridges. By positioning a continuous 500 V AC dielectric barrier between the field field-side terminal rows and the backplane, the architecture blocks signal cross-talk, stabilizes high-density marshalling loops, and maintains measurement accuracy without requiring external inline transmitters.

Frequently Asked Questions

Q: How do the M4 screw terminals and the heavy chassis weight affect signal stability in high-vibration applications?

A: The ~4.0 kg heavy-duty polymer structure dampens structural frequencies within control cabinets. Combined with the M4 screw terminals, this design maintains high mechanical contact force on large field conductors, preventing the connection resistance shifts that cause false temperature spikes in RTD monitoring loops.

Q: Can the board pass low-voltage RTD resistances inside hazardous process areas without explosion-proof conduit seals?

A: Yes. The module features CSA Non-Incendive certification, validating its safety for use in Class I, Division 2, Groups A, B, C, and D environments. Under normal operation, the energy on the 16 channels cannot ignite hazardous atmospheric mixtures, allowing direct installation within approved marshalling cabinets without special explosion-proof enclosures.

Q: What are the primary diagnostic indicators that a grounding loop is breaking down the 500 V AC dielectric isolation barrier?

A: If insulation resistance drops below 100 MOhm at 500 V DC, high-frequency common-mode noise will bleed through onto adjacent channels. This structural failure causes temperature reading fluctuations, calibration shifts, or intermittent sensor faults within the CENTUM VP control system matrix.

Field Installation Guidelines

Cabinet Structural Fastening: Install the terminal board securely onto the internal marshalling panel frame. Tighten all structural mounting fasteners completely to ensure a low-impedance connection between the module chassis and the master cabinet ground plane.
RTD Conductor Torque Maintenance: Connect the 3-wire or 4-wire RTD field lines directly to the designated M4 screw terminals. Torque each terminal to factory specifications to establish a stable, low-resistance connection and prevent measurement drift over time.
Low-Level Wire Path Routing: Route all 16 channel RTD sensor cables through dedicated, separate wire trays. Keep these sensitive low-voltage analog inputs isolated from high-voltage AC lines or motor drive cables to prevent inductive noise injection.
Shield Continuity Management: Terminate the outer braided shields of all RTD field cables at the nearest enclosure instrumentation ground bar. Maintain a single-point grounding layout to eliminate circulating ground loop currents that could destabilize the 16 independent input channels.

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