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SAI533-H33/PRP S1

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Yokogawa SAI533-H33/PRP S1 is an eight-channel 4–20 mA analog output module with channel-to-channel isolation and HART communication. The /PRP execution includes prevention-keying for the ProSafe-RS I/O assembly.
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Technical specifications for SAI533-H33/PRP S1

  • Manufacturer:
    Yokogawa
  • Part Number:
    SAI533-H33/PRP S1
  • Product Family:
    ProSafe-RS SAI533 Analog I/O Modules
  • Product Type:
    HART Analog Output Module
  • Stock:
    1
  • Analog output channels:
    8
  • Signal standard:
    4 to 20 mA
  • Extended output span:
    1.25 to 23 mA
  • Isolation:
    Channel-to-channel module isolation
  • Load resistance:
    230 to 600 Ω
  • Output accuracy:
    ±48 µA
  • Update period:
    40 ms
  • Temperature drift:
    ±16 µA per 10 °C
  • Withstand voltage:
    1.5 kV AC
  • Withstand voltage with dedicated cable:
    500 V AC
  • 5 V current consumption:
    320 mA
  • 24 V current consumption:
    300 mA
  • HART mode:
    Serial half-duplex
  • HART data rate:
    1200 bit/s ±2%
  • HART revision:
    5.7
  • HART frequencies:
    1200 and 2200 Hz FSK
  • HART frame length:
    5 to 267 bytes
  • Maximum response field:
    28 characters / 256.7 ms
  • Redundant installation:
    Supported
  • Prevention key:
    /PRP
  • ProSafe-RS style:
    S1
  • Weight:
    0.32 kg
  • Estimated shipping dimensions:
    3.2x14.7x13cm
  • Tariff Code:
    Please confirm the destination before shipping.
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Communication Monitoring & Control Safety & Compliance

Features:

  • Generates eight isolated 4–20 mA control outputs for ProSafe-RS field devices.
  • Carries HART diagnostics and parameters over the same two-wire current loops.
  • Supports engineered redundant use and a prevention-keyed I/O arrangement.
The complete H33/PRP S1 suffix is retained without inferring an undocumented terminal substitution.

It commands analog final elements while providing a digital service channel to intelligent field devices.

Loop resistance, HART compatibility and node redundancy should be checked in the installed ProSafe-RS project.

Apter Power can review sourcing, documentation and system matching for SAI533-H33/PRP S1.
Verified resources for Yokogawa SAI533-H33/PRP S1: Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Safety systems drive valve positioners while reading HART status for device-health supervision.
  • Process shutdown panels use isolated channels to prevent one field loop fault from propagating to neighbouring outputs.
  • Commissioning teams access supported smart-device parameters without lifting the 4–20 mA wiring.
  • HART data uses 1200 and 2200 Hz FSK over the active analog current loop.
  • The interface operates half-duplex at 1200 bit/s within the documented tolerance.
  • Frame handling supports HART revision 5.7 messages from 5 to 267 bytes.
  • Each channel controls current across the extended 1.25 to 23 mA operating span.
  • The 40 ms update period refreshes commanded output values for all configured channels.
  • HART diagnostics add device information without replacing the primary 4–20 mA control variable.
  • Channel-to-channel isolation separates field-loop potentials within the module.
  • Withstand voltage is 1.5 kV AC, or 500 V AC when the specified dedicated cable condition applies.
  • The /PRP prevention key helps stop an incompatible module or terminal arrangement from being inserted.
Description
SAI533-H33/PRP S1 provides eight module-isolated current outputs for safety and process-control final elements. Each channel offers an extended 1.25–23 mA output span for diagnostic underrange and overrange handling.

HART frequency-shift-keyed communication is superimposed on the analog current so device variables and diagnostics can be exchanged without interrupting the primary signal. The module supports redundant arrangement where the engineered node configuration calls for it.

Terminal style, redundancy, HART revision and prevention pin must match the existing ProSafe-RS installation. The H33 and S1 suffixes should be preserved exactly because the available public table does not justify substituting another SAI533 ordering combination.
Alternative Names
SAI533-H33/PRP S1 Yokogawa SAI533-H33/PRP S1 SAI533 H33 PRP S1 SAI533H33PRPS1 SAI533 HART Output Module Yokogawa SAI533 AO ProSafe-RS SAI533 SAI533-H33 Prevention Key Module
Technical notes
Preserve the H33/PRP S1 suffix when replacing SAI533-H33/PRP S1; terminal and prevention-key differences can block installation or alter wiring.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How many control loops are provided by Yokogawa SAI533-H33/PRP S1?
The module supplies eight isolated analog output channels.
What digital protocol accompanies the current signal on Yokogawa SAI533-H33/PRP S1?
HART revision 5.7 communication is superimposed on the 4–20 mA loop.
Why is /PRP important in Yokogawa SAI533-H33/PRP S1?
It identifies the prevention-keyed execution used to avoid an incorrect physical module or terminal combination.
Can Yokogawa SAI533-H33/PRP S1 participate in a redundant output design?
Yes, the SAI533 family supports redundant arrangement when configured according to the ProSafe-RS design.
What loop checks precede a Yokogawa SAI533-H33/PRP S1 replacement?
Verify channel polarity, 230–600 ohm load, HART device support, terminal style and redundancy wiring.
How should Yokogawa SAI533-H33/PRP S1 be identified in an enquiry?
Retain H33, /PRP and S1 exactly, and include the node type, quantity and destination.

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