MRT16A Yokogawa RTD Terminal Board Datasheet & Technical Manual

Yokogawa MRT16A RTD Terminal Board for CENTUM VP and ProSafe-RS Systems

Yokogawa MRT16A RTD Terminal Board for CENTUM VP and ProSafe-RS Systems

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Yokogawa MRT16A RTD Terminal Board The Yokogawa MRT16A, also cataloged as the MRT16A Terminal Board, operates as a dedicated hardware...

رمز المنتج: MRT*A

Manufacturer: Yokogawa
Product No.: MRT*A
Product Type: Terminal Boards
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 1800g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

Yokogawa MRT16A RTD Terminal Board

The Yokogawa MRT16A, also cataloged as the MRT16A Terminal Board, operates as a dedicated hardware component for RTD signal termination within CENTUM VP, CENTUM CS 3000, and ProSafe-RS platforms.

Hardware Specifications

Parameter	Specification
Model	MRT16A
Brand	Yokogawa
Origin	Japan
Channel Capacity	32 channels (16 x 2 groups)
Compatible Modules	AMM32C
Connection Type	M4 screw terminals
Insulation Resistance	>= 100 M Ohm at 500 V DC
Dielectric Strength	500 V AC
Weight	1.8 kg
Operating Temp	0 deg C to +50 deg C
Power Consumption	Passive (None)

Process Control and Signal Integrity

The MRT16A provides the physical interface for high-precision temperature monitoring loops. Within the Yokogawa DCS architecture, the board utilizes channel-to-channel isolation principles to minimize potential signal interference in high-density I/O cabinets. The M4 screw terminal interface ensures low-contact resistance for RTD sensors, which is necessary for maintaining the integrity of resistance-based measurements. This board specifically targets stable signal acquisition, facilitating cold junction compensation (CJC) requirements indirectly by ensuring clean, stable signal termination before conversion at the AMM32C module level.

Frequently Asked Questions

Q: Can the MRT16A terminal board be used with thermocouple inputs?

A: No, the MRT16A is engineered exclusively for RTD signal termination. Attempting to terminate thermocouple inputs will lead to significant measurement inaccuracies due to the lack of dedicated CJC circuitry and proper scaling logic for mV-level signals.

Q: What is the primary cause of signal drift when using this terminal board?

A: Signal drift often originates from loose connections at the M4 terminal or excessive resistance in the field wiring. Ensure that all conductors are properly ferruled and that the terminal torque specifications are maintained to keep connection resistance minimal.

Field Installation Guidelines

Cabinet Environmental Control: Install the MRT16A within an IP-rated enclosure that maintains an ambient temperature between 0 deg C and 50 deg C. Excessive heat will degrade the insulation resistance and potentially cause non-linear drift in the RTD signal path.
Wiring Separation: Route RTD signal cables through dedicated shielded conduits separate from high-voltage AC power lines. This spatial separation reduces the risk of electromagnetic interference (EMI) injecting noise into the sensitive resistance measurement loops.
Shielding and Grounding: Terminate cable shields at the cabinet's designated signal ground bus. Do not daisy-chain shield grounds; use individual connections to the grounding bar to ensure a low-impedance path to earth for transient suppression.
Mechanical Mounting: Ensure the terminal board is secured firmly to the DIN-rail or backplane. Use conductive mounting hardware if the design requires chassis grounding for the board's internal surge protection circuits.

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