Product Core Brief

• Model: DSAI133A 3BSE018290R1
• Brand: ABB
• Series: Advant OCS / S100 I/O
• Core Function: Acquires 32 single-ended analog signals and converts them to digital process values for ABB Advant Controller systems.
• Product Type: Analog Input Module
• Key Specs: 32 channels | 0–10 V / 0–20 mA | 12-bit resolution | single-ended
• Condition: New Original / New Surplus

Key Technical Specifications

• Input channels: 32 single-ended analog inputs
• Input range: 0–10 V / 0–20 mA
• Resolution: 12-bit
• Channel type: Single-ended
• Supply voltage: 24 V DC
• Interface: S100 I/O bus interface
• Operating temperature: approx. -20 °C to +70 °C
• Mechanical dimensions: approx. 324 × 225 × 22.5 mm
• Net weight: approx. 0.29 kg

 

Product Introduction (No Fluff)

This is a 32-channel analog input module for the ABB Advant OCS / S100 I/O platform. It accepts single-ended 0–10 V and 0–20 mA signals from field transmitters, sensors, and instruments, then delivers digitized values into the controller for monitoring, regulation, and alarming.

Its main value is channel density. With 32 inputs per module, it reduces rack space, wiring complexity, and spare-part variety for plants maintaining legacy ABB systems. When original stock is scarce, this unit serves as a practical OEM replacement for existing S100 I/O racks.

 

QA & Testing SOP (Dynamic & Transparent)

We treat this as a surplus verification, not a factory calibration. Every unit is checked before dispatch.

1. Incoming inspection — Confirm part number 3BSE018290R1, inspect for burnt components, corrosion, damaged connectors, and label consistency.
2. Bus connector check — Examine the S100 I/O interface contacts for bent pins, oxidation, or mechanical wear.
3. Power-up test — Apply 24 V DC and verify normal LED behavior, absence of overheating, and no immediate fault indication.
4. Channel spot check — Where test equipment allows, inject known voltage/current references on selected channels and compare readings.
5. Packing — Place in anti-static packaging with shock protection; provide actual-unit photos when requested.

 

Installation Pitfalls & Guide (Engineer to Engineer)

❗ Single-ended wiring is not the same as differential. DSAI133A uses single-ended inputs, so common-mode noise, ground offsets, and long unshielded runs can affect readings more than on differential AI modules.

❗ Do not assume direct interchangeability with DSAI130 variants. DSAI130 modules are typically 16-channel differential inputs, while this unit is 32-channel single-ended. Slot configuration, terminal blocks, and channel mapping may differ.

❗ Verify the terminal block and cable assembly. S100 I/O modules often rely on specific connection units and预制 cables. Missing or mismatched connectors will delay commissioning.

❗ Avoid hot insertion unless the system manual confirms it. Some S100 I/O configurations allow module replacement during operation, but do not assume this is safe without checking the rack type, power state, and controller documentation.

Replacement steps

1. Pre-install: Confirm model, slot position, channel map, and back up the controller configuration.
2. Removal: Disconnect field wiring, release the module, and withdraw it carefully from the rack.
3. Install: Seat the new module firmly, reconnect the terminal block, and verify shielding and grounding.
4. Power-on test: Restore power, review diagnostics, and validate several channels with known signals.

 

Technical FAQ

Is this an OEM genuine ABB part?
We supply new original and new surplus stock depending on availability. If sealed original packaging is required, confirm before ordering.

Can DSAI133A replace DSAI130 or other AI modules?
Not automatically. DSAI133A is a 32-channel single-ended module, while many DSAI130 variants are 16-channel differential. Always verify channel type, terminal wiring, and project configuration before substitution.

What is the warranty?
Warranty depends on condition and stock type. New surplus units typically carry shorter coverage than new original sealed stock. Confirm before purchase.

Do you provide calibration certificates?
No. This is a replacement I/O module, not a calibrated instrument. If formal calibration is required, arrange it after installation.

Is it in stock and ready to ship?
Inventory changes daily. Send the required quantity and destination, and we will confirm availability, lead time, and shipping options.