Description
3. Key Technical Specifications
| Parameter | Specification / Value |
| Manufacturer | Yokogawa Electric Corporation |
| Part Number | ASI133-H00SA3S0 |
| Module Type | 16-Channel Analog Input Card |
| Input Signal Range | 4 to 20 mA DC |
| Number of Channels | 16, non-isolated between channels (common ground), isolated to system |
| Input Impedance | 250 Ω (typical for current loop measurement) |
| Allowable Input Current | 30 mA DC maximum per channel |
| Accuracy | ±0.1% of full scale |
| Data Update Cycle | 10 ms |
| HART Communication | Supported (Pass-through for HART field devices) |
| Power Consumption | 24 V DC, 350 mA maximum (system internal backplane draw) |
| Mounting / Rack Type | Fits standard Yokogawa I/O Node Units / Racks |
4. Product Introduction & Supply Chain Strategy
The Yokogawa ASI133-H00SA3S0 is a high-accuracy 16-channel analog input module built for CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). It digitizes 4–20 mA field signals from flowmeters, pressure transmitters, and temperature transmitters, feeding real-time process variables directly to field control stations (FCS).
Offered exclusively as Brand New Surplus, this card allows supply chain and plant maintenance engineers to maintain system availability without facing long OEM factory lead times or premium expedite costs. Opting for New Surplus over third-party refurbished units eliminates the hidden risks of component degradation—such as drift in internal A/D converters or aging optocouplers—protecting continuous process units from false readings or costly emergency shutdowns.

ASI133-H00SA3S0

ASI133-H00SA3S0
5. Installation & Configuration Guide
1.Stage 1: Pre-Installation (Prep & Safety):Safety Lockout & Site Prep.
Coordinate with control room operators to set associated control loops to Manual mode or bypass active interlocks before removing any module. Wear a grounded ESD wrist strap connected to the cabinet frame grounding point. Take clear photos of existing field wiring blocks and verify card slot assignments in System View software.
Verification: Confirm loops are safely isolated in the DCS software diagnostic screen before physically touching the module.
2.Stage 2: Removal:Safe Card Extraction.
Loosen top and bottom mounting screws on the module front panel. If the module uses a terminal block, unlatch and detach the field wiring arm without disconnecting individual field wires. Pull the ejection levers outward and smoothly slide the card out of the node unit slot along its plastic rails.
Verification: Visually inspect the backplane bus socket for dust accumulation, debris, or damaged pin contacts.
3.Stage 3: Installation (Clone & Seat):Module Insertion & Latching.
Unpack the new ASI133-H00SA3S0 card using ESD-safe procedures. Align the module with the guide rails of the target slot and slide it inward until the backplane connector makes contact. Firmly press the faceplate until the ejection levers latch into place, then tighten the top and bottom retaining screws. Reattach the pre-wired terminal block assembly.
Verification: Ensure the card faceplate sits flush against adjacent modules with no visible gap.
4.Stage 4: Power-On & Testing:DCS Diagnostics & Verification.
Observe the module front panel status LEDs. The “READY” LED should illuminate solid green, indicating proper system power-up and backplane communication initialization. Open CENTUM VP System View diagnostics to clear any pending slot faults and verify all 16 analog channels display live process variable (PV) readings matching field instrument outputs.
Verification: Verify 4–20 mA input values match field calibrator or transmitter readings across active channels with zero channel diagnostic alarms.
6. Firmware/Software Versions & Upgrade Notes
- System Compatibility: Compatible with Yokogawa CENTUM VP (R4.01 and higher) and CENTUM CS 3000 control stations using standard I/O node units.
- Hardware Suffix Code Breakdown: The suffix -H00SA3S0 specifies HART communication pass-through capability, standard temperature range, basic insulation, and dual-redundant option support.
- Replacement Note: When replacing an ASI133 module, ensure the replacement card matches the exact suffix code (-H00SA3S0). Inserting a non-HART version (such as -N00) into a slot configured for HART communications will generate system configuration mismatches and disable digital transmitter diagnostics.
7. Frequently Asked Questions (FAQ)
Q: Is this Yokogawa ASI133-H00SA3S0 module new or refurbished?
A: This unit is 100% Brand New Surplus. It has never been installed in an operating control system, never pulled from a decommissioned plant, and has zero circuit repairs. It ships in original ESD packaging with pristine backplane pins.
Q: Why choose New Surplus over refurbished cards for DCS applications?
A: Refurbished analog input cards often suffer from component aging on internal A/D conversion circuits and multiplexers, leading to calibration drift or intermittent signal drops over time. Investing in New Surplus guarantees original factory tolerance, long operational life, and avoids thousands of dollars in off-spec product runs or plant downtime.
Q: Does the ASI133- support dual-redundant slot configurations?
A: Yes. The ASI133- supports dual-redundant pairs in compatible Yokogawa I/O node units. When paired with a secondary module in adjacent slots, the control station maintains seamless operation without signal interruption if one card encounters a hardware failure.
Q: Can this module be hot-swapped while the DCS is running?
A: Yes, Yokogawa CENTUM VP node units support online module replacement (hot-swapping). However, ensure all safety interlocks tied to the card’s 16 channels are temporarily bypassed or placed in manual control before pulling the card to prevent process disruption.
Q: What warranty is included with this New Surplus board?
A: We provide a full 1-year functional replacement warranty starting from the date of shipment. Every module undergoes thorough visual and electrical backplane inspection prior to dispatch.

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