Yokogawa SAI533-H03 – 8-Channel Current Output Module with HART Communication

The Yokogawa SAI533-H03 is a current output module. Specifically, this module outputs 4 to 20 mA signals to field devices. It belongs to the ProSafe-RS family of I/O modules. Furthermore, the SAI533 can be made dual redundant for critical applications. Consequently, this module provides reliable analog control for safety and process systems.

Ordering Configuration and Model Identification

• Model: SAI533.

• Suffix Code H: With HART communication enabled.

• Suffix Code 0: Pressure clamp terminal block or MIL cable with no explosion protection.

• Suffix Code 3: With ISA Standard G3 and temperature range (-20 to 70°C).

• Product Type: Analog Output Module (4 to 20 mA, 8 channels, module isolation).

• Therefore, the Yokogawa SAI533-H03 offers HART communication and wide temperature tolerance.

Output Channel Specifications

• Number of Output Channels: 8 channels total.

• Module Isolation: Yes, channels isolated from each other.

• High Temperature Restriction: Above 60°C, channel count may be restricted.

• Reference Document: ProSafe-RS Outline of I/O Modules (GS 32P06K60-01EN).

• Rated Output Range: 4 to 20 mA.

• Maximum Range of Guaranteed Precision: 1.25 to 23 mA.

• Output Range (Full Capability): 1.25 to 23 mA.

• Thus, the SAI533-H03 provides flexible output scaling beyond standard 4-20mA.

Accuracy and Performance Specifications

• Accuracy: ±48 µA at rated range.

• Data Update Frequency: 40 milliseconds.

• Temperature Drift: ±16 µA per 10°C.

• PST Support (Partial Stroke Test): Available (KS1).

• Application: Supports diagnostic testing of safety valves.

• Consequently, the Yokogawa SAI533-H03 delivers high precision for critical control loops.

Load Resistance and Output Drive

• Allowable Load Resistance at Rated Range: 230 to 600 Ω.

• Output Signal Type: 4 to 20 mA analog current.

• HART Communication: Supported over same 4-20mA loop.

• Signal Compatibility: Works with standard HART field devices.

• Therefore, the SAI533-H03 drives typical industrial loads while enabling digital communication.

Current Consumption and Power Requirements

• 5V System Current Consumption: 320 mA maximum.

• 24V System Current Consumption: 300 mA maximum.

• Module Isolation: Yes, between output signals and system.

• Dual Redundancy: Available for increased availability.

• Thus, the Yokogawa SAI533-H03 requires moderate power for full 8-channel operation.

Withstand Voltage and Isolation Ratings

• Withstand Voltage (Standard): 1.5 kV AC between output signal and system for 1 minute.

• Withstand Voltage (Dedicated Signal Cable): 500 V AC.

• Isolation Type: Module isolation for each channel.

• Safety Rating: Suitable for safety instrumented systems.

• Consequently, the SAI533-H03 provides robust electrical isolation for field wiring.

Temperature and Environmental Specifications

• Standard Operating Temperature Range: -20°C to +70°C.

• ISA Standard G3 Compliance: Yes (suffix code 3).

• High Temperature Restriction: Channel count restricted above 60°C.

• Application Environment: Harsh industrial and safety system installations.

• Corrosion Resistance: G3 rating for moderate corrosive atmospheres.

• Moreover, the Yokogawa SAI533-H03 withstands demanding environmental conditions.

Physical Specifications and Weight

• Weight (Pressure Clamp or MIL Cable): Approximately 0.26 kg.

• Weight (With Signal Cable Interface Adapter): Approximately 0.33 kg.

• External Connection Options:

  • Pressure clamp terminal block.

  • MIL cable.

  • Dedicated signal cable.

• Form Factor: ProSafe-RS standard I/O module.

• Therefore, flexible connection options suit various installation preferences.

Dual Redundancy Feature

• Redundancy Capability: SAI533 can be made dual redundant.

• Purpose: Increases system availability for critical loops.

• Application: Safety shutdown systems and high-availability process control.

• Benefit: Continuous operation even during module failure or maintenance.

• Configuration: Requires proper system design and backplane support.

• Thus, the Yokogawa SAI533-H03 supports failsafe architectures.

Installation Guide

First, verify that the ambient temperature is within -20°C to +70°C range. For temperatures above 60°C, consult the manual for channel restrictions. Then, select your preferred connection type (pressure clamp, MIL cable, or dedicated signal cable). After that, mount the Yokogawa SAI533-H03 into the ProSafe-RS backplane. Connect the 5V and 24V system power to the appropriate pins. Next, wire each output channel to your field device (4-20mA loop). Ensure the load resistance stays between 230 and 600 Ω. Then, configure HART communication if required. For dual redundant operation, install two SAI533 modules and configure accordingly. Subsequently, download the I/O configuration to the system. Finally, verify output accuracy using a precision current meter. As a result, the Yokogawa SAI533-H03 will provide reliable analog output control.

Packaging List

• One Yokogawa SAI533-H03 current output module

• One pressure clamp terminal block (or MIL cable connector per order)

• One product label and identification sheet

• One quick start installation guide

• One G3 compliance certificate

Common FAQs

Q1: How many output channels does the Yokogawa SAI533-H03 provide?
A: This module provides 8 isolated output channels. However, above 60°C ambient temperature, channel count may be restricted. Always consult GS 32P06K60-01EN for high-temperature derating.

Q2: Does the SAI533-H03 support HART communication?
A: Yes, the H suffix code indicates HART communication capability. Therefore, digital data transmits over the same 4-20mA loop. This enables remote configuration and diagnostics.

Q3: What is the accuracy of the Yokogawa SAI533-H03?
A: The accuracy is ±48 µA at the rated output range. Temperature drift adds ±16 µA per 10°C. Therefore, total error depends on ambient temperature variations.

Q4: Can I use this module in redundant configuration?
A: Yes, the SAI533 can be made dual redundant. Consequently, this provides high availability for critical control loops. Redundant modules require proper backplane and system configuration.

Q5: What load resistance does the SAI533-H03 support?
A: Allowable load resistance ranges from 230 to 600 Ω at the rated 4-20mA range. Output range extends from 1.25 to 23 mA. Always verify your field device impedance falls within this range.