Masterflex L/S® MasterSense™ Process Peristaltic Pump

Overview

The Masterflex L/S® MasterSense™ Process Peristaltic Pump is an industrial-grade, microprocessor-controlled peristaltic pump engineered for precision fluid handling in regulated laboratory, pilot-scale, and continuous manufacturing environments. Based on the proven L/S® modular platform, it employs positive displacement via roller compression of elastomeric tubing — a contamination-free, low-shear mechanism ideal for shear-sensitive biologics, cell cultures, reagents, and sterile process streams. Unlike centrifugal or diaphragm pumps, the MasterSense™ eliminates valves, seals, and wetted metal components downstream of the tubing, ensuring absolute fluid isolation and simplifying cleaning validation. Its robust 316 stainless steel enclosure meets IP66 and NEMA 4X standards, enabling direct washdown in pharmaceutical cleanrooms, food processing lines, and chemical synthesis suites without risk of ingress or corrosion.

Key Features

• 5-inch high-resolution capacitive TFT/RGB touchscreen with wide-angle visibility and glove-compatible responsiveness — enabling intuitive setup, real-time monitoring, and parameter adjustment without external PCs.
• Three-tiered user access control (Operator, Supervisor, Administrator) with password protection and role-based permissions — supporting compliance with data integrity requirements under ALCOA+ principles.
• Integrated real-time pressure sensing with programmable alarm thresholds — automatically halting operation upon occlusion, tubing failure, or backpressure exceedance to prevent system damage and ensure process continuity.
• Drip-free dispensing with programmable acceleration/deceleration ramps — minimizing residual droplet formation, eliminating foam generation in protein-rich or surfactant-containing fluids, and improving volumetric accuracy across batch and time-based modes.
• Over-the-air (OTA) wireless firmware updates — ensuring long-term adaptability to evolving process needs and regulatory expectations without hardware replacement or onsite service visits.
• Multi-protocol industrial connectivity: native support for EtherNet/IP™ and PROFIBUS for PLC integration; analog 0–10 V / 4–20 mA I/O for legacy DCS compatibility; and secure cloud telemetry via MasterflexLive™ for remote diagnostics and predictive maintenance.

Sample Compatibility & Compliance

The MasterSense™ accommodates all standard L/S® pump heads and certified tubing materials — including PharMed® BPT, Norprene®, and Viton® — each selected for USP Class VI, FDA 21 CFR 177.2600, and EU 10/2011 compliance. Its tubing-based fluid path enables rapid changeover between incompatible chemistries without cross-contamination risk. The system is designed to operate within ISO 13485 and ICH Q5C frameworks for biopharmaceutical manufacturing and supports qualification documentation packages (DQ/IQ/OQ/PQ) required for GMP validation. When deployed with MasterflexLive™ and configured audit trails, it meets data integrity criteria aligned with FDA 21 CFR Part 11 and EU Annex 11 for electronic records and signatures.

Software & Data Management

MasterflexLive™ provides secure, browser-based remote access to pump status, historical run logs, alarm history, and firmware version tracking. All parameter changes, start/stop events, and alarm triggers are timestamped and logged with user ID attribution — forming a complete, tamper-evident electronic record. Exportable CSV reports facilitate trending analysis and deviation investigations. For on-premise integration, OPC UA and Modbus TCP gateways enable bidirectional communication with MES and SCADA platforms. Audit trail configuration adheres to ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate) standards, and electronic signatures may be implemented via third-party identity providers compliant with NIST SP 800-63B.

Applications

• Continuous bioprocessing: feed, harvest, and buffer exchange in perfusion bioreactors and tangential flow filtration (TFF) skids.
• Automated analytical sample introduction: precise metering into HPLC, IC, and ICP-MS systems where pulseless flow and low carryover are critical.
• Pharmaceutical formulation: aseptic transfer of APIs, excipients, and final fill solutions in isolator- or RABS-based filling lines.
• Food & beverage quality control: calibrated dispensing of standards, titrants, and preservatives during inline pH, DO, and turbidity monitoring.
• Chemical synthesis: controlled reagent addition in flow reactors with exothermic or gas-evolving reactions requiring accurate stoichiometric delivery.

FAQ

What tubing sizes and materials are compatible with the MasterSense™?
The pump accepts all L/S®-certified tubing diameters from 0.020″ to 0.375″ (0.5 mm to 9.5 mm), including PharMed® BPT (USP Class VI), Norprene® (FDA-compliant), and Viton® (for aggressive solvents). Tubing compatibility is verified per Masterflex’s published tubing performance matrix.
Can the MasterSense™ be integrated into a validated GMP manufacturing system?
Yes — with appropriate configuration (e.g., audit trail enabled, electronic signature workflow, IQ/OQ protocols), it supports compliance with FDA 21 CFR Part 11, EU Annex 11, and ISO 13485. Validation documentation templates are available upon request from authorized distributors.
Does the pump support closed-loop flow control?
While the MasterSense™ does not include an integrated flow sensor, its pressure monitoring output and analog I/O ports allow external feedback integration with PID controllers for closed-loop pressure or flow regulation in custom automation architectures.
How often does tubing require replacement?
Lifespan depends on operating speed, pressure, and fluid chemistry. Under typical lab conditions (≤60 rpm, aqueous buffers), PharMed® BPT tubing lasts 500–1,000 hours. MasterflexLive™ includes optional usage-hour tracking and predictive alerts based on cumulative revolutions.
Is the touchscreen interface suitable for use in sterile environments?
Yes — the IP66-rated front panel withstands frequent alcohol or hydrogen peroxide vapor (HPV) decontamination cycles. Glove-compatible touch response eliminates need for stylus or physical buttons, reducing surface contact points in aseptic zones.