ABB CI610 3BHT300003R1 – High-Performance Analog Input Module for Industrial Automation

If you’re working on a System 800xA or AC 800M setup, the ABB CI610 (3BHT300003R1) is one of those modules that quietly does its job—accurately and without fuss. It’s an 8-channel analog input module designed to handle process signals from field instruments like pressure transmitters, temperature sensors, and flow meters. One thing I appreciate is how stable it performs in environments where signal noise can be an issue—it seems to reject interference well, especially when wired properly.

You might notice that this module appears in many legacy ABB DCS installations, particularly in power plants and water treatment facilities. From my experience, it’s typically chosen not because it’s flashy, but because it integrates seamlessly with existing control architecture and rarely needs replacement.

Key Features

• 8 differential analog inputs – Supports voltage and current signals (±10 V, 0–20 mA, 4–20 mA), making it versatile for various sensor types.
• High signal resolution – 16-bit A/D conversion delivers precise data, which helps maintain tight control loops.
• Galvanic isolation – Channel-to-channel and channel-to-ground isolation reduces ground loop issues and improves system reliability.
• Hot-swappable design – Can be replaced during operation in redundant systems, minimizing downtime.
• Integrated diagnostics – Detects open circuits, overrange, and hardware faults, so troubleshooting becomes faster.
• Compatible with AC 800M controllers – Plugs directly into the I/O racks via the S800 I/O bus, simplifying integration.

Technical Specifications

Application Fields

This module shows up most often in continuous process industries. In power generation plants, it’s used to monitor boiler feedwater levels and turbine lube oil pressure. Water and wastewater treatment facilities rely on it for reading pH probes and level sensors in real time. I’ve also seen it in chemical processing lines where accurate analog feedback is critical—say, tracking reagent dosing rates. It’s not built for high-speed motion control, but in stable, long-term monitoring roles, it holds up well.

Advantages & Value

Procurement teams tend to stick with this model because replacements are predictable—same form factor, same firmware behavior. That means less engineering time spent on validation. Since it’s hot-swappable, maintenance crews don’t need to schedule full outages just to swap a faulty unit. And while newer digital modules offer more features, the CI610 remains cost-effective for brownfield sites already using S800 I/O racks. Firmware updates are minimal, but compatibility is rock solid.

Installation & Maintenance

Mount it on standard DIN rails inside an IP54-rated control cabinet—make sure there’s at least 25 mm clearance on each side for airflow. Avoid routing high-voltage cables alongside signal wires; cross-talk can degrade readings over time. Use shielded twisted-pair cables with single-point grounding. While the module doesn’t require regular calibration under normal conditions, checking zero/span every 12–18 months helps catch drift early. If you’re replacing one in the field, power down the rack section if redundancy isn’t configured—it reduces risk of bus errors.

Quality & Certifications

The CI610 meets CE, UL, and CSA standards for industrial equipment. It’s RoHS compliant and designed under ISO 9001 quality processes. The manufacturer typically offers a 365-day warranty against defects in materials and workmanship. Keep in mind that counterfeit modules do circulate occasionally—so inspect labeling and serial numbers upon delivery. Genuine units have consistent laser etching and come in static-safe packaging.

Our Order Placement Process and Guarantees

Delivery Time: 1 week for in-stock units. For out-of-stock items, delivery takes no more than one month.
Payment Method: 50% advance payment required; balance due before shipment.
Express Delivery: Shipped via FedEx, UPS, or DHL—tracking provided.
Warranty: Full 365-day coverage from date of delivery.