Yokogawa SAI143-H53/A4D00 Analog Input Module

Product Description

The Yokogawa SAI143-H53/A4D00, also cataloged as the SAI143 Analog Input Module, acquires process signals from field devices and converts them into digital data for Yokogawa control and data acquisition systems. It supports 4-20 mA, 0-10 V, and 0-500 ohm input signals across four configurable channels.

Hardware Specifications

DCS Analog Signal Processing

The SAI143-H53/A4D00 accepts current, voltage, and resistance signals through its configurable input channels. It converts the measured field values into 16-bit digital data for processing by the associated control system.

For process instrumentation, the module accepts the specified 4-20 mA current range. It also supports 0-10 V voltage signals and 0-500 ohm resistance inputs. Therefore, the connected field device must match the selected input type and configured channel range.

The module operates from a +24 VDC supply with a +/-10% tolerance. The supplied data specifies a sampling interval of up to 1 second for each channel. The four-channel architecture allows multiple process variables to enter the acquisition system through one module.

Yokogawa Process Signal Interface

The SAI143-H53/A4D00 belongs to the process-control interface category, where accurate field signal acquisition supports subsequent control-system processing. Engineers should verify the configured signal type before connecting each field circuit.

For current and voltage inputs, technicians should maintain correct polarity and route signal wiring separately from high-voltage power conductors. For resistance measurement, the field wiring arrangement must follow the applicable Yokogawa installation documentation to maintain the specified measurement configuration.

The supplied information does not specify channel-to-channel isolation, HART communication, or cold junction compensation. Therefore, these functions are not assigned to this model without additional manufacturer documentation.

Frequently Asked Questions

Q: Which input signals does the SAI143-H53/A4D00 support?
A: The supplied specifications list 4-20 mA, 0-10 V, and 0-500 ohm input signals.

Q: How many input channels does the module provide?
A: The module provides four configurable input channels.

Q: What digital resolution does the module specify?
A: The supplied data specifies 16-bit resolution for digital data representation.

Field Installation Guidelines

Install the SAI143-H53/A4D00 in the designated Yokogawa system hardware location and secure the module according to the applicable installation procedure.

Before wiring, identify the input signal type assigned to each channel. Verify whether each field circuit uses 4-20 mA, 0-10 V, or 0-500 ohm measurement.

Maintain correct signal polarity for current and voltage circuits. Route analog signal cables separately from power cables and high-current switching circuits to reduce electromagnetic interference.

For shielded instrumentation wiring, terminate the shield according to the grounding method specified by the Yokogawa system documentation. Avoid creating unintended ground paths through multiple shield termination points.

Before commissioning, verify the +24 VDC supply, field wiring, channel configuration, and selected input type. Apply known field signals where appropriate and compare the acquired values with the expected process measurements.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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