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Yokogawa SBA4D-06 Analog Terminal Board

The Yokogawa SBA4D-06, also cataloged as the SBA4D Analog Terminal Board, operates as a dedicated hardware component for connecting field analog signals to FIO I/O modules within CENTUM VP and ProSafe-RS control architectures.

Suffix Breakdown & Model Matrix

Code Option / Specification Description
SBA4D Base Model Terminal Board for Analog (single and dual-redundant, 16-channel x 1, DIN rail mount)
-0 Standard Code Always 0
6 Protection / Environmental Type With ISA Standard G3 conformal coating and no explosion protection

Hardware Specifications

Parameter Specification
Model SBA4D-06
Brand Yokogawa
Origin Japan
Weight 0.30 kg (Net), 2.0 kg (Shipping)
Dimensions 26.3 cm x 13.8 cm x 8.8 cm
Operating Temp -10 to +60 deg C
Power Consumption Passive field terminal interface unit
System Compatibility CENTUM VP / CS 3000 / ProSafe-RS FIO Systems
Channel Capacity Single and dual-redundant setups (8-point x 1 or 16-point x 1)
Field Connection Pressure clamp terminals, KS cable adapter, or MIL connector
Compatible Modules AAI135, AAI835, AAP135, AAI141, AAV141, AAV144, AAB841, AAI841, AAV544, AAI143, AAI543
Insulation Resistance Minimum 10 M ohm at 500 VDC
Withstanding Voltage 500 VAC for 1 minute

Process Control and DCS Connectivity

The SBA4D-06 terminal board provides structured signal routing to bridge field instruments with FIO analog input and output cards. Featuring ISA Standard G3 conformal coating for harsh industrial environments, the pressure clamp terminal interface maintains low-resistance connections for 4-20 mA HART loop protocol transmitters and valve positioners. Integrated bus paths accept single and dual-redundant module connections, permitting continuous signal cross-routing without secondary bridge wiring or external signal splitters.

Frequently Asked Questions

Q: What does the -06 suffix code indicate on the SBA4D terminal board?

A: The -06 suffix designates compliance with ISA Standard G3 environmental protection (conformal coating) for corrosive atmospheres, built without explosion protection rating.

Q: How are field instruments wired to the SBA4D-06 interface?

A: Signal wires connect directly via integrated pressure clamp screw terminals or route through external KS interface cables and MIL connectors.

Field Installation Guidelines

Mount the SBA4D-06 unit onto a standard 35 mm DIN rail inside the marshalling cabinet, verifying that the bottom locking mechanism clips securely over the rail flange. Strip field conductors to the designated length before securing them into pressure clamp terminals, applying torque within manufacturer limits to prevent wire shearing. When using KS or MIL connectors for module link cables, verify that wire latches fully engage to prevent vibration-induced signal loss. Connect cabinet earth ground directly to the terminal board grounding pad to ensure proper cable shield drain termination.

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