Product Overview

The Yokogawa SAI143-H63 is an analog input module with 16 channels. It accepts 4 to 20 mA signals from field transmitters. This module features full channel isolation for signal integrity. The Yokogawa SAI143-H63 includes a built-in transmitter power supply for 2-wire devices. Users trust this module for reliable analog measurement in Yokogawa CENTUM systems.

Technical Specifications

The SAI143-H63 delivers accurate analog input processing with isolation. Below are the complete technical details.

General Specifications

• Manufacturer: Yokogawa for industrial automation reliability.

• Product Type: Analog Input Module (16 channels, module isolation).

• Product Number: SAI143-H63 for precise identification.

• Model: SAI143 analog input module.

• Weight (Pressure Clamp or MIL Cable): Approx. 0.34 kg.

• Weight (With Signal Cable Interface Adapter): Approx. 0.39 kg.

Input Channel Specifications

• Number of Input Channels: 16 channels with module isolation.

• Rated Input Range: 4 to 20 mA standard analog signal.

• Permissible Input Range: 0 to 25 mA maximum.

• Input Impedance (Power-ON): 250 Ω + Current value.

• Input Impedance (Power-OFF): 500 kΩ minimum.

• Voltage Drop: Occurs in the input protection circuit inside the module.

Accuracy and Performance

• Rated Accuracy (SAI143-S): ±16 µA (Input range 1 to 23 mA).

• Rated Accuracy (SAI143-H): ±16 µA (Input range 0.05 to 23 mA).

• Data Update Frequency: 40 ms for process monitoring.

• Temperature Drift: ±16 µA per 10°C change.

• Thermal Stability: Reliable across varying temperatures.

Transmitter Power Supply

• Output at 20 mA: 16.15 V minimum for transmitter loop power.

• Output at 0 mA: 26.4 V maximum.

• Output Current Limit: 25 mA protection.

• 2-Wire Setting: Available for all 16 channels simultaneously.

• 4-Wire Setting: Individual channel configuration via setting pins.

• Transmitter Power Supply ON/OFF Function: Available in 2-wire setting, for all 16 channels at the same time.

2/4-Wire Configuration

• Individual Channel Setting: Each channel configurable independently.

• Configuration Method: Changed by setting pins on the module.

• Flexibility: Mix 2-wire and 4-wire transmitters on same module.

• 2-Wire Mode: Module supplies power to the transmitter.

• 4-Wire Mode: External power source supplies the transmitter.

Withstanding Voltage and Isolation

• Between Input Signal and System: 1.5 kV AC for 1 minute.

• Module Isolation: All 16 channels share common isolation.

• Protection: Robust isolation for industrial noise immunity.

Power Consumption

• 5 V System Maximum: 320 mA.

• 24 V System Maximum: 550 mA.

• Total Power: Moderate for 16-channel density.

External Connection Options

• Pressure Clamp Terminal: For secure field wiring.

• MIL Cable: For high-density connections.

• Dedicated Signal Cable: For Yokogawa system integration.

PRM Support

• Support PRM: Available (SAI143-H) for plant resource management.

• HART Communication: Enabled on the -H63 suffix model.

• Device Integration: Supports smart transmitter configuration.

Installation Guide

Follow these steps to install the Yokogawa SAI143-H63 correctly.

1. Power Down the System: Turn off all power to the I/O rack.

2. Locate the Slot: Find an available slot in the Yokogawa base plate.

3. Insert the Module: Slide the SAI143-H63 into the slot until seated.

4. Secure the Module: Lock the module using the retaining mechanism.

5. Install Terminal: Attach pressure clamp terminal or MIL cable connection.

6. Set 2/4-Wire Pins: Configure each channel using the setting pins.

7. Wire 2-Wire Transmitters: Connect positive and negative leads for loop power.

8. Wire 4-Wire Transmitters: Connect signal leads only (external power separate).

9. Verify Input Range: Ensure signal stays within 4 to 20 mA rated range.

10. Apply Power: Turn on the system power to the I/O rack.

11. Check Status LEDs: Verify module operation and channel status.

12. Configure in System: Set input range and scaling in CENTUM configuration.

13. Test HART Communication: Confirm digital communication on HART channels.

Installation Notes

• The module provides 16 analog input channels with module isolation.

• Data update frequency is 40 ms for all channels.

• Transmitter power supply ON/OFF applies to all 16 channels simultaneously.

• 2/4-wire setting uses individual pins per channel.

• Withstanding voltage is 1.5 kV AC for 1 minute.

Packaging List

This unit ships as a new and original product.

• Yokogawa SAI143-H63 Analog Input Module

• Setting pins for 2/4-wire configuration (pre-installed)

• Product data sheet

• Anti-static factory packaging box

Frequently Asked Questions (FAQ)

1. How many input channels does the SAI143-H63 provide?
The Yokogawa SAI143-H63 provides 16 analog input channels. All channels share module isolation for signal integrity.

2. Does this module supply power to 2-wire transmitters?
Yes, the SAI143-H63 includes a transmitter power supply. In 2-wire setting, it supplies 16.15 V minimum at 20 mA to all 16 channels simultaneously.

3. What is the accuracy of the SAI143-H63 analog inputs?
The Yokogawa SAI143-H63 provides ±16 µA accuracy. For the -H model, this applies across the input range of 0.05 to 23 mA.

4. How do I configure 2-wire or 4-wire mode on this module?
The SAI143-H63 uses setting pins for individual channel configuration. Each channel has pins to select 2-wire or 4-wire operation.

5. What is the data update frequency for this analog input module?
The Yokogawa SAI143-H63 has a data update frequency of 40 ms. This provides timely process monitoring for all 16 channels.