What Is the Alaris 8100 Pressure Sensor?

The pressure sensor for the BD Alaris 8100 Pump Module is a load cell-style force transducer that monitors line pressure at two critical points in the fluid delivery pathway: the upstream (bottle-side) position and the downstream (patient-side) position. Both the top and bottom sensor positions in the 8100 pump head use the same interchangeable sensor. The sensor communicates pressure data to the pump’s control board, enabling the Alaris 8100 to detect upstream and downstream occlusions and trigger the appropriate alarms. This compatible replacement sensor is a direct substitute for OEM part numbers 143715-100, 49000540, and TC10009596.

Compatible Pump Module

This pressure sensor is compatible with the BD / CareFusion Alaris 8100 Large Volume Pump (LVP) Module, also referenced in some documentation as the Alaris Medley 8100 LVP. The 8100 module is designed to operate within the Alaris Medley system, integrating with the Alaris 8015 PC Unit and other Alaris channel modules. This sensor is not confirmed compatible with other Alaris module models and should only be used in the 8100 LVP pump head.

Design and Construction

The Alaris 8100 pressure sensor is a compact, board-mounted force sensing component that seats directly into the pump head housing. The sensor operates as an analog load cell, converting mechanical pressure from the IV administration set into a voltage signal read by the pump’s logic board. Both the bottle-side and patient-side sensors in the 8100 are identical in form and function, simplifying parts inventory for biomedical departments. After installation, the pump head should be cycled several times with a primed administration set to allow the sensor mechanics to seat properly and achieve stable voltage readings prior to pressure calibration.

When to Replace Your Alaris 8100 Pressure Sensor

The most common indicators that one or both pressure sensors in the Alaris 8100 require replacement include persistent Channel Error 240.4150 alarms, false occlusion alarms during normal infusion, failure to pass pressure calibration in the Alaris System Maintenance software, and analog sensor voltage readings that fall outside the acceptable range. Because the bottle-side sensor is under lower mechanical load during normal operation, it tends to degrade before the patient-side sensor, though both should be evaluated when troubleshooting pressure-related errors. Replacing the sensor with a quality compatible part and properly breaking it in through a series of pump cycles will typically resolve these issues without requiring a logic board replacement.

Cross Reference and Interchange Part Numbers

This compatible pressure sensor replaces the following OEM part numbers for the BD / CareFusion / Alaris 8100 pump module: 143715-100, 49000540, and TC10009596. All three part numbers refer to the same sensor component used in the Alaris 8100 LVP pump head assembly. IPR Medical stocks this part and can source it quickly for facilities managing a fleet of 8100 pump modules.

Why Source Alaris 8100 Parts from IPR Medical?

IPR Medical specializes in the buying, selling, repair, and parts stocking of infusion pumps and patient monitoring equipment, including the full BD Alaris 8100 Medley platform. Our biomedical technicians have hands-on experience servicing the Alaris 8100, and our parts inventory is maintained to support both single-unit repairs and high-volume fleet maintenance programs. When you source replacement parts from IPR Medical, you work directly with a team that understands the equipment — not a general medical distributor. We offer competitive pricing, fast shipping, and responsive support for biomedical engineers, materials managers, and clinical engineering departments.

IPR Medical buys, sells, repairs, and stocks parts for the BD Alaris 8100 Pump Module. Contact us at 855-477-8866 or cs@iprmed.com.